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Cultural Conditions of Heavy Metal-ion Tolerant Microorganism and Accumulation of Heavy Metal-ion into the Cells.
Yu. Tae-Shick, Song. Hyung-Ik 한국미생물생명공학회 산업미생물학회지 6 Pages
한국미생물생명공학회 산업미생물학회지 1981, Vol.9 No.2 59-64 (6 pages)
카드뮴에 오염될 가능성이 있는 아연 광산지역의 오니로부터 중금속내성균을 분리한 고도카드뮴내성 효모인 B-7 배양조건 및 균체내 카드뮴의 축적에 대하여 검토했다. 효모 B-7은 3,000 $mu extrm{g}$/$mell$의 카드뮴 합유배지에서 생육이 가능하며 다른 연구자들의 카드뮴내성균보다 내성이 가장 큰 고도카드뮴내성균이었다. 이 효모는 22~22$^{circ}C$및 pH 5.0~8.0의 조건에서 생육이 양호하였다. 카드뮴은 균체내 축적은 생육최적 pH인 6.0에서 가장 양호했으나, 그 이외의 pH에서는 급격히 저해되였으며 소포제 Silicon KM-70에... -
Effects of Heavy Metal Contamination from an Abandoned Mine on Tomato Growth and Root-knot Nematode Development
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 3호 8 266-271 (6 pages)
be the primary hazardous heavy metal in CS. The toxicity of As might be enhanced at low pH in CS because exchangeable forms of some heavy metals increase with the decrease of soil pH. The heavy metals, especially As, may have contributed to increasing EC and decreasing av. P2O5. Therefore, the effects of mine drainage contamination from the abandoned mine were derived primarily from contamination by heavy metals such as As. These may have been enhanced in toxicity (solubility) by the lowered pH,... -
Transition Metal Induces Apoptosis in MC3T3E1 Osteoblast Evidence of Free Radical Release
Han-JungChae, , Soo-WanChae, Jang-SookKang, Dong-HyeonYun, Byung-GwanBang, Mi-RaKang, Hyung-MinKim, Hyung-RyongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.1 7 47-54 (8 pages)
Transition metal ions including Se2, Cd2, Hg2 or Mn2 have been thought to disturb the bone metabolism directly. However, the mechanism for the bone lesion is unknown. In this study, we demonstrated that MC3T3E1 osteoblasts, exposed to various transition metal ions; selenium, cadmium, mercury or manganese, generated massive amounts of reactive oxygen species (ROS). The released ROS were completely quenched by free radical scavengers-N-acetyl cysteine (NAC), reduced... -
Impact of single metal oxide and coal ash on secondary ultrafine particle generation through SO2 and NO2 heterogeneous reaction
Ru-Jiao Song, Zi-Xiang Xu, Joo-Chang Park, Li-Hua Xu, Hyung-Taek Kim 한국열환경공학회 열환경공학 19 Pages
한국열환경공학회 열환경공학 2020, 제 15권 1호 4 28-46 (19 pages)
is further enhanced in the case of high relative humidity (RH) and in the presence of NH3. The reaction on Al2O3 under different gas concentration ratios is compared, and it is identified that SO2 and NO2 concentrations make an effect on aerosol production. The heterogeneous reactions of SO2 and NO2 on various coal ash are different. The order of reactivity of the three coal ashes is WH>MHU>Centennial. The secondary particulate matter formed on coal ash is higher than that on single metal oxide. -
Adsorption characteristics of heavy metals ions by physical activation on coal tar pitch-based activated carbon fibers
Bo-kyung Choi, Jae-Kyoung Ko, Soo-Jin Park, Min-Kang Seo 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 10 96-100 (5 pages)
as heavy metal ions are present in the wastewater produced by various industries. This wastewater flows into rivers, pollutes water supplies, and can contaminate the drinking water supplied to people [1-3]. Powder or activated carbons are being widely used today to mitigate polluted water from industrial sources and contaminated supplies. To make up for the limitations of such materials, there has been strong interest in the use of activated carbon fibers (ACFs) as adsorbents, because they offer... -
Cu²? ion reduction in wastewater over RDF-derived char
Hyung Won Lee, Rae-su Park, Sung Hoon Park, Sang-Chul Jung, Jong-Ki Jeon, Sang Chai Kim, Jin Do Chung, Won Geun Choi, Young-Kwon Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.18 8 49-55 (7 pages)
representative heavy metal water pollutant. Activation of the RDF char using steam and KOH treatments was performed to change the specific surface area, pore volume, and the metal cation quantity of the char. N2 sorption, Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES), and Fourier transform infrared spectroscopy were used to characterize the char. The optimum pH for copper removal was shown to be 5.5, and the steam-treated char displayed the best copper removal capability. Ion... -
Alterations in antioxidant function and cell apoptosis in duck spleen exposed to molybdenum and/or cadmium
Mengmeng Zhang, Junrong Luo, Caiying Zhang, Huabin Cao, Bing Xia, Guoliang Hu 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 2호 9 193-200 (8 pages)
To investigate the effects of molybdenum (Mo) and/or cadmium (Cd) on antioxidant function and the apoptosis-related genes in duck spleens. Sixty healthy 11-day-old ducks were randomly divided into six groups of 10 ducks (control, low Mo group, high Mo, Cd, low Mo + Cd, and high Mo + Cd groups). All were fed a basal diet containing low or high dietary doses of Mo and/or Cd. Relative spleen weight, antioxidant indices, apoptosis-related gene mRNA expression levels, and ultrastructural changes were... -
Cadmium induces apoptosis in primary rat osteoblasts through caspase and mitogen-activated protein kinase pathways
Hongyan Zhao, Wei Liu, Yi Wang, Nannan Dai, Jianhong Gu, Yan Yuan, Xuezhong Liu, Jianchun Bian, Zong-Ping Liu 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 3호 7 297-306 (10 pages)
Exposure to cadmium (Cd) induces apoptosis in osteoblasts (OBs); however, little information is available regarding the specific mechanisms of Cd-induced primary rat OB apoptosis. In this study, Cd reduced cell viability, damaged cell membranes and induced apoptosis in OBs. We observed decreased mitochondrial transmembrane potentials, ultrastructure collapse, enhanced caspase-3 activity, and increased concentrations of cleaved PARP, cleaved caspase-9 and cleaved caspase-3 following Cd treatment.... -
The Critical Roles of Zinc: Beyond Impact on Myocardial Signaling
SungRyulLee, SuJinNoh, JuliusRyanPronto, YuJeongJeong, HyoungKyuKim, InSungSong, ZhelongXu, HyogYoungKwon, SeChanKang, Eun-HwaSohn, KyungS 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.5 1 389-400 (12 pages)
in cellular processes. Whole body and cellular Zn2+ levels are largely regulated by metallothioneins (MTs), Zn2+ importers (ZIPs), and Zn2+ transporters (ZnTs). Numerous proteins involved in signaling pathways, mitochondrial metabolism, and ion channels that play a pivotal role in controlling cardiac contractility are common targets of Zn2+. However, these regulatory actions of Zn2+ are not limited to the function of the heart, but also extend to numerous other organ systems, such as the central... -
Bis is Induced by Oxidative Stress via Activation of HSF1
HyungJaeYoo, Chang-NimIm, Dong-YeYoun, HyeHyeonYun, Jeong-HwaLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 8 403-409 (7 pages)
The Bis protein is known to be involved in a variety of cellular processes including apoptosis, migration, autophagy as well as protein quality control. Bis expression is induced in response to a number of types of stress, such as heat shock or a proteasome inhibitor via the activation of heat shock factor (HSF)1. We report herein that Bis expression is increased at the transcriptional level in HK-2 kidney tubular cells and A172 glioma cells by exposure to oxidative stress such as H2O2 treatment... -
Neuroprotective Effects of Lithium on NMDA-induced Excitotoxicity in Mouse Cerebrum
Gee-younKwon, Soo-kyungKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.3 1 111-122 (12 pages)
Neuroprotective properties of lithium were evaluated by using in vivo NMDA excitotoxicity model. Systemic injection of NMDA to young mice induced neuronal apoptosis mediated by both TNFR-1 and Fas ligand, and long-term lithium treatment showed noticeable neuroprotection against NMDA-induced excitotoxicity: NMDA-damaged neurons expressed several apoptosis-related gene products such as TNFR-1, Fas ligand, and caspase-3, and these gene expressions were not found in the brain of mice chronically... -
Lysophosphatidylcholine Attenuates Endothelium-dependent Relaxation Responses through Inhibition of ACh-induced Endothelial [Ca2+]i Increase
Seong-ChunKwon, Yong-HoLee, TaicksangNam, Duck-SunAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.1 5 25-30 (6 pages)
Lysophosphatidylcholine (LPC), which accumulates in atherosclerotic arteries, has been reported to inhibit endothelium-dependent relaxation (EDR) in many different species. However, the underlying mechanism of LPC-induced inhibition of EDR is still uncertain. In the present study, we measured simultaneously both isometric tension and cytosolic free Ca2 ([Ca2]i) in rabbit carotid strips, and examined the effect of LPC on tension and [Ca2]i. In carotid strips with... -
Mechanism of Acetylcholine-induced Endothelium-dependent Relaxation in the Rabbit Carotid Artery by M3-receptor Activation
Yong-JinSong, Seong-ChunKwon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.6 4 313-318 (6 pages)
The present study were designed to characterize the action mechanisms of acetylcholine (ACh)- induced endothelium-dependent relaxation in arteries precontracted with high K (70 mM). For this, we simultaneously measured both muscle tension and cytosolic free Ca2 concentration ([Ca2]i), using fura-2, in endothelium-intact, rabbit carotid arterial strips. In the artery with endothelium, high K increased both [Ca2]i and muscle tension whereas ACh (10μM)... -
Renal Handling of Sodium and Potassium in Cadmium Exposed Rats
YungKyuKimYangSaengPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.4 12 503-510 (8 pages)
load was decreased by reduction in GFR, but the renal Na excretion returned to the control level due to impaired Na transport in the proximal tubule. Urinary excretion of K did not change during the early phase, but it rose markedly during the late phase of cadmium treatment. These results indicate that a light cadmium intoxication induces a Na retention, and a heavy intoxication results in a K loss. Possible mechanisms for these changes are discussed. -
Fe2+에 의한 지질 과산화에 있어서 Quercetin과 Rutin의 억제 작용
정진희(Jin-Hee Chung), 이정수(Chung-Soo Lee), 신용규(Yong-Kyoo Shin), 이광수(Kwang-Soo Lee) 대한약리학회 대한약리학잡지 12 Pages
대한약리학회 대한약리학잡지 1991, 제 27권 제 1호 8 69-80 (12 pages)
Iron(II)에 의한 마이크로좀의 지질 과산화에 미치는 quercetin과 rutin의 억제 효과를 iron의 산화중에서 생성되는 산소 라디칼에 대한 제거 작용과 iron에 대한 킬레이트 작용에 관하여 관찰하였다. Fe2+ 단독에 의한 지질 과산화는 quercetin 또는 rutin에 의하여 용량에 따라 현저하게 억제되었다. Fe2+의 존재하에서 ascorbate또는 NADPH에 의한 지질 과산화는 quercetin과 rutin에 의하여 거의 완전히 억제되었다. Fe2+의 과산화 작용은 SOD와 DABCO에 의하여 억제되었고 catalase, DMSO와 mannitol에 의하여 약간 억제되었다.... -
혈관평할근 세포에서의 칼륨이온과 카페인의 영향: 수축과 세포내 칼슘이온 농도에 대하여
안희열(H.Y. Ahn), H. 가라끼(H. Karaki) 대한약리학회 대한약리학잡지 6 Pages
대한약리학회 대한약리학잡지 1988, 제 24권 제 2호 5 197-202 (6 pages)
본 연구에서는 세포내의 칼슘이온과 결합하여 형광을 발하는 형광색소 fura 2를 이용하여 세포내의 칼슘이은 농도를 측정함과 동시에 장력을 측정하였으며 이에 대한 카페인과 고농도의 칼륨의 영향을 정토하였다. 72.7 mM의 칼륨 이온은 장력과 세포내 칼슘이온농도에서 각각 지속적 인 증가를 보여주었으며, 20 mM의 카페인은 일과성의 빠른 세포내의 칼슘이은농도의 증가에 이어 감소를 보여주었으나 기본치 보다는 높았다. 그러나, 장력에 있어서는 카페인은 일과성의 증가에 이어 기본 장력보다 낮은 감소를 보여주었다. 한편... -
The Water-Soluble Chitosan Derivative, N-Methylene Phosphonic Chitosan, Is an Effective Fungicide against the Phytopathogen Fusarium eumartii
Florencia Anabel Mesas, Mar?a Cecilia Terrile, Mar?a Ximena Silveyra, Adriana Zu?iga, Mar?a Susana Rodriguez, Claudia Anah? Casalongu?, Julieta Ren?e Mendieta 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 4 533-542 (10 pages)
Chitosan has been considered an environmental-friend- ly polymer. However, its use in agriculture has not been extended yet due to its relatively low solubility in water. N-Methylene phosphonic chitosan (NMPC) is a water- soluble derivative prepared by adding a phosphonic group to chitosan. This study demonstrates that NMPC has a fungicidal effect on the phytopathogenic fungus Fusarium solani f. sp. eumartii (F. eumartii) judged by the inhibition of F. eumartti mycelial growth and spore... -
Potential of Using Ginger Essential Oils-Based Nanotechnology to Control Tropical Plant Diseases
Adamu Abdullahi, Khairulmazmi Ahmad, Intan Safinar Ismail, Norhayu Asib, Osumanu Haruna Ahmed, Abubakar Ismaila Abubakar, Yasmeen Siddiqui, Mohd Razi Ismail 한국식물병리학회 The Plant Pathology Journal 21 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 1 515-535 (21 pages)
Essential oils (EOs) have gained a renewed interest in many disciplines such as plant disease control and medicine. This review discusses the components of ginger EOs, their mode of action, and their potential nanotechnology applications in controlling tropical plant diseases. Gas chromatography-mass spectroscopy (GC-MS), high-performance liquid chromatography, and headspace procedures are commonly used to detect and profile their chemical compositions EOs in ginger. The ginger EOs are composed... -
Salicylic Acid as a Safe Plant Protector and Growth Regulator
Young Mo Koo, A Yeong Heo, Hyong Woo Choi 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 1호 1 1-10 (10 pages)
Since salicylic acid (SA) was discovered as an elicitor of tobacco plants inducing the resistance against Tobacco mosaic virus (TMV) in 1979, increasing reports suggest that SA indeed is a key plant hormone regulating plant immunity. In addition, recent studies indicate that SA can regulate many different responses, such as tolerance to abiotic stress, plant growth and development, and soil microbiome. In this review, we focused on the recent findings on SA’s effects on resistance to biotic... -
Crosstalk of Zn in Combination with Other Fertilizers Underpins Interactive Effects and Induces Resistance in Tomato Plant against Early Blight Disease
Zoia Arshad Awan, Amna Shoaib, Kashif Ali Khan 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 4호 5 330-340 (11 pages)
The present study was undertaken to evaluate the integrated effect of zinc (Zn) with other nutrients in managing early blight (EB) disease in tomato. A pot experiment was carried out with basal application of the recommended level of macronutrients [nitrogen, phosphorus and potassium (NPK)] and micronutrients [magnesium (Mg) and boron (B)] in bilateral combination with Zn (2.5 and 5.0 mg/kg) in a completely randomized deigned in replicates. Results revealed that interactive effect of Zn with Mg... -
Characterization of Burkholderia glumae Putative Virulence Factor 11 (PVF11) via Yeast Two-Hybrid Interaction and Phenotypic Analysis
Juyun Kim, Namgyu Kim, Mohamed Mannaa, Hyun-Hee Lee, Jong-Seong Jeon, Young-Su Seo 한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 3호 9 280-286 (7 pages)
In this study, PVF11 was selected among 20 candidate pathogenesis-related genes in Burkholderia glumae based on its effect on virulence to rice. PVF11 was found to interact with several plant defense-related WRKY proteins as evidenced through yeast-two hybrid analysis (Y2H). Moreover, PVF11 showed interactions with abiotic and biotic stress response-related rice proteins, as shown by genome-wide Y2H screening employing PVF11 and a cDNA library from B. glumaeinfected rice. To confirm the effect... -
Overexpression of a Pathogenesis-Related Protein 10 Enhances Biotic and Abiotic Stress Tolerance in Rice
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2016, 32권 6호 8 552-562 (11 pages)
Pathogenesis-related proteins play multiple roles in plant development and biotic and abiotic stress tolerance. Here, we characterize a rice defense related gene named “jasmonic acid inducible pathogenesis-related class 10” (JIOsPR10) to gain an insight into its functional properties. Semi-quantitative RT-PCR analysis showed up-regulation of JIOsPR10 under salt and drought stress conditions. Constitutive over-expression JIOsPR10 in rice promoted shoot and root development in... -
PCBs함유 폐기물 처리를 위한 플라즈마 용융기술
박현서, 송현선, 박동화, 유병수 한국열환경공학회 열환경공학 17 Pages
한국열환경공학회 열환경공학 2011, 제 8권 1호 7 51-67 (17 pages)
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강열감량과 오염물질의 연관성 분석에 의한 저수지 퇴적물의 평가
한국열환경공학회 열환경공학 2015, 제 12권 1호 3 23-31 (9 pages)
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하수슬러지의 연료 이용을 위한 최적탄화조건
박민숙, 정성배, 김철규 한국열환경공학회 열환경공학 12 Pages
한국열환경공학회 열환경공학 2015, 제 12권 1호 1 1-12 (12 pages)
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문화자본의 개념화와 문화자본 연구의 주요 쟁점에 관한 비판적 검토
한국교육사회학회 교육사회학연구 2012, 제 22권 제 2호 2 31-63 (33 pages)
이 연구는 교육사회학 연구 분야에서 문화자본과 관련하여 제기되고 있는 쟁점들에 대하 여 비판적으로 논의하고 문화자본 관련 연구들이 고려해야 할 과제들을 제안함으로써 향후 우리 사회에서 수행되는 문화자본 관련 연구들의 이론적, 사회적 적합성을 높이는데 기여하 려는 목적으로 수행되었다. 이를 위하여 먼저 문화자본 개념이 Bourdieu의 저술에서 어떻게 진화해 왔으며, Bourdieu의 문화자본론을 적용한 경험적 연구들이 문화자본의 개념을 어떻게 정의하고 조작화했는지를 검토하였다. 다음으로 교육사회학 분야를 중심으로... -
Nitrogen-doped carbon nanosheets from polyurethane foams and removal of Cr(VI)
Jiaqi Duan, Baohua Zhang, Huailin Fan, Wenzhong Shen, Shijie Qu 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 7 60-69 (10 pages)
Nitrogen-doped carbon nanosheets with a developed porous structure were prepared from polyurethane foams by hydrothermal carbonization following ZnCl2 chemical activation. Scanning electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, solid state 13C nuclear magnetic resonance (NMR) spectra and X-ray photoelectron spectroscopy were used to characterize the nitrogen-doped carbon nanosheet structure and composition. The removal of Cr(VI) by the N-doped carbon... -
Kinetic and multi-parameter isotherm studies of picric acid removal from aqueous solutions by carboxylated multi-walled carbon nanotubes in the presence and absence of ultrasound
Soheila Gholitabar, Hasan Tahermansouri 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 2 14-24 (11 pages)
Carboxylated multi-wall carbon nanotubes (MWCNTs-COOH) have been used as efficient adsorbents for the removal of picric acid from aqueous solutions under stirring and ultrasound conditions. Batch experiments were conducted to study the influence of the different parameters such as pH, amount of adsorbents, contact time and concentration of picric acid on the adsorption process. The kinetic data were fitted with pseudo-first order, pseudo-secondorder, Elovich and intra-particle diffusion models.... -
Three-dimensional porous graphene materials for environmental applications
Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang, Yun Suk Huh 한국탄소학회 Carbon Letters 13 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 1 1-13 (13 pages)
is caused by oil spills, heavy metals, dyes, and organic compounds released by industry, as well as via unpredictable accidents. In addition, water pollution is also caused by radionuclides released by nuclear disasters or leakage. This review presents an overview of the state-of-the-art synthesis methodologies of 3D porous graphene materials and highlights their synthesis for environmental applications. The various synthetic methods used to prepare these 3D materials are discussed, particularly... -
Removal of chromium from tannery wastewater by electrosorption on carbon prepared from peach stones: effect of applied potential
Mounir Ziati, Fariza Khemmari, Mohamed Kecir, Sabir Hazourli 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 10 81-85 (5 pages)
The objective of this study is the removal of chromium from tannery wastewater by electrosorption on carbon prepared from lignocellulosic natural residue "peach stones' thermally treated. The followed steps for obtaining coal in chronological order were: cleaning, drying, crushing and finally its carbonization at 900°C. The characterization of the carbon material resulted in properties comparable to those of many coals industrially manufactured. The study of the dynamic adsorption of chromium... -
Nanoporous carbon synthesized from grass for removal and recovery of hexavalent chromium
Shahin A. Pathan, Nancy S. Pandita 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 2 10-18 (9 pages)
Nanoporous carbon structures were synthesized by pyrolysis of grass as carbon precursor. The synthesized carbon has high surface area and pore volume. The carbon products were acid functionalized and characterized by Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer?Emmett?Teller, transmission electron microscopy, and Energy Dispersive X-ray microanalysis. Acid functionalized nanoporous carbon was explored for use in removal of toxic Cr(VI) ions from aqueous media. An... -
Adsorption capability of activated carbon synthesized from coconut shell
Md Shariful Islam, Bee Chin Ang, Samira Gharehkhani, Amalina Binti, Muhammad Afifi 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 1 1-9 (9 pages)
Activated carbon was synthesized from coconut shells. The Brunauer, Emmett and Teller surface area of the synthesized activated carbon was found to be 1640 m2/g with a pore volume of 1.032 cm3/g. The average pore diameter of the activated carbon was found to be 2.52 nm. By applying the size-strain plot method to the X-ray diffraction data, the crystallite size and the crystal strain was determined to be 42.46 nm and 0.000489897, respectively, which indicate a perfect crystallite structure. The... -
Carbon rich fly ash and their nanostructures
Numan Salah, Sami S. Habib, Zishan H. Khan, Ahmed Alshahrie, Adnan Memic, Attieh A. Al-ghamdi 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 3 23-31 (9 pages)
Carbon rich fly ash was recently reported to have compositions that are ideal for use as a precursor and catalyst for carbon nanotube growth. This fly ash powder is mostly composed of pure carbon, predominantly present as sp2. In this work, the effect of sonication time on the morphology and structural properties of carbon rich fly ash particles is reported. The obtained results show that ultrasound treatment is an effective tool for producing ultrafine particles/fragments with higher porosity,... -
Adsorption of lisinopril and chlorpheniramine from aqueous solution on dehydrated and activated carbons
El-Said I. El-Shafey, Haider A. J. Al-Lawati, Wafa S. H. Al-Saidi 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 2 12-22 (11 pages)
Date palm leaflets were used as a precursor to prepare dehydrated carbon (DC) via phosphoric acid treatment at 150°C. DC, acidified with H3PO4, was converted to activated carbon (AC) at 500°C under a nitrogen atmosphere. DC shows very low surface area (6.1 m2/g) while AC possesses very high surface area (829 m2/g). The removal of lisinopril (LIS) and chlorpheniramine (CP) from an aqueous solution was tested at different pH, contact time, concentration, and temperature on both carbons. The... -
A review: methane capture by nanoporous carbon materials for automobiles
Pil-Seon Choi, Ji-Moon Jeong, Yong-Ki Choi, Myung-Seok Kim, Gi-Joo Shin, Soo-Jin Park 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 3 18-28 (11 pages)
as an important green and economic technology. It is very important to develop highly efficient adsorbents to realize techno-economic systems for CH4 adsorption and storage. In this review, we summarize the nanomaterials being used for CH4 adsorption, which are divided into non-carbonaceous (e.g., zeolites, metal-organic frameworks, and porous polymers) and carbonaceous materials (e.g., activated carbons, ordered porous carbons, and activated carbon fibers), with a focus on recent research. -
A review: synthesis and applications of graphene/chitosan nanocomposites
Hui Yuan, Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 2 11-17 (7 pages)
Recently, with continuous developments in the field of materials science, graphene oxide (GO) has emerged as a promising material with excellent electrical, thermal, mechanical, and optical properties, which play important roles in most fields. Researchers have achieved considerable progress with graphene. Chitosan (CS) is a natural polymer that has been studied intensively owing to its specific formation, high chemical resistance, and excellent physical properties. These outstanding properties... -
Hierarchical porous carbon nanofibers via electrospinning
Aikifa Raza, Jiaqi Wang, Shan Yang, Yang Si, Bin Ding 한국탄소학회 Carbon Letters 14 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.1 1 1-14 (14 pages)
Carbon nanofibers (CNFs) with diameters in the submicron and nanometer range exhibit high specific surface area, hierarchically porous structure, flexibility, and super strength which allow them to be used in the electrode materials of energy storage devices, and as hybrid-type filler in carbon fiber reinforced plastics and bone tissue scaffold. Unlike catalytic synthesis and other methods, electrospinning of various polymeric precursors followed by stabilization and carbonization has become a... -
Fabrication and Applications of Carbon Nanotube Fibers
Hungo Choo, Yeonsu Jung, Youngjin Jeong, Hwan Chul Kim, Bon-Cheol Ku 한국탄소학회 Carbon Letters 14 Pages
한국탄소학회 Carbon Letters 2012, Vol.13 No.4 1 191-204 (14 pages)
