Journal of Chemical Technology & Biotechnology最新文献_第2页

A Novel Tris(2-aminoethyl)amine Based Tripodal Ligand: Synthesis and Solution Coordination Studies with Trivalent Iron and Chromium 一种新型三(2-氨基乙基)胺基三足配体:与三价铁和铬的合成及配位研究

Journal of Chemical Technology & Biotechnology Pub Date : 2016-11-23 DOI: 10.1155/2016/3757418

M. Baral, A. Gupta, Rifat Akbar, B. K. Kanungo

引用次数: 3

Comparison of Surface and Structural Properties of Carbonaceous Materials Prepared by Chemical Activation of Tomato Paste Waste: The Effects of Activator Type and Impregnation Ratio 番茄酱废化学活化制备碳质材料的表面和结构性能比较:活化剂类型和浸渍比的影响

Journal of Chemical Technology & Biotechnology Pub Date : 2016-11-22 DOI: 10.1155/2016/8236238

N. Özbay, A. Yargic

{"title":"Comparison of Surface and Structural Properties of Carbonaceous Materials Prepared by Chemical Activation of Tomato Paste Waste: The Effects of Activator Type and Impregnation Ratio","authors":"N. Özbay, A. Yargic","doi":"10.1155/2016/8236238","DOIUrl":"https://doi.org/10.1155/2016/8236238","url":null,"abstract":"Activated carbons were prepared by carbonization of tomato paste processing industry waste at 500°C followed by chemical activation with KOH, K2CO3, and HCl in N2 atmosphere at low temperature (500°C). The effects of different activating agents and impregnation ratios (25, 50, and 100 wt.%) on the materials’ characteristics were examined. Precursor, carbonized tomato waste (CTW), and activated carbons were characterized by using ultimate and proximate analysis, thermogravimetric analysis (TG/DTG), Fourier transform-infrared (FT-IR) spectroscopy, X-ray fluorescence (XRF) spectroscopy, point of zero charge measurements ( ), particle size analyzer, scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, nitrogen adsorption/desorption isotherms, and X-ray diffraction (XRD) analysis. Activation process improved pore formation and changed activated carbons’ surface characteristics. Activated carbon with the highest surface area (283 m3/g) was prepared by using 50 wt.% KOH as an activator. According to the experimental results, tomato paste waste could be used as an alternative precursor to produce low-cost activated carbon.","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"22 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2016-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87362944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Synthesis, X-Ray Crystal Structure Study, Hirshfeld Surface Analysis, and Biological Activity of N-(2-amino-phenyl)-2-methyl-benzamide N-(2-氨基苯基)-2-甲基苯酰胺的合成、x射线晶体结构研究、Hirshfeld表面分析及生物活性研究

Journal of Chemical Technology & Biotechnology Pub Date : 2016-11-14 DOI: 10.1155/2016/5951013

Latha Rani Nagaraju, Lakshmi Ranganatha Venkataravanappa, S. Anandalwar, S. Khanum

引用次数: 2

Saccharomyces cerevisiae Catalyzed Cyclocondensation Reaction: Synthesis of Pyrazoline 酿酒酵母催化的环缩合反应:吡唑啉的合成

Journal of Chemical Technology & Biotechnology Pub Date : 2016-10-25 DOI: 10.1155/2016/7425913

Nitesh D. Punyapreddiwar, A. Wankhade, S. Zodape, Umesh R. Pratap

引用次数: 1

Theoretical Energy and Exergy Analyses of Proton Exchange Membrane Fuel Cell by Computer Simulation 质子交换膜燃料电池理论能量和火用分析的计算机模拟

Journal of Chemical Technology & Biotechnology Pub Date : 2016-09-18 DOI: 10.1155/2016/2684919

I. Gimba, A. Abdulkareem, A. Jimoh, A. Afolabi

{"title":"Theoretical Energy and Exergy Analyses of Proton Exchange Membrane Fuel Cell by Computer Simulation","authors":"I. Gimba, A. Abdulkareem, A. Jimoh, A. Afolabi","doi":"10.1155/2016/2684919","DOIUrl":"https://doi.org/10.1155/2016/2684919","url":null,"abstract":"A mathematical model of a proton exchange membrane fuel cell (PEMFC) was developed to investigate the effects of operating parameters such as temperature, anode and cathode pressures, reactants flow rates, membrane thickness, and humidity on the performance of the modelled fuel cell. The developed model consisted of electrochemical, heat energy and exergy components which were later simulated using a computer programme. The simulated model for the voltage output of the cell showed good conformity to the experimental results sourced from the literature and revealed that the operating pressure, temperature, and flow rate of the reactants positively affect the performance and efficiencies (energy and exergy) of the cell. The results also indicated that high membrane thickness above 150 μm is unfavourable to both the fuel cell performance and the cell energy and exergy efficiencies. The simulated results obtained on the influence of membrane humidity on the cell performance indicated that membrane humidity positively favours both the performance and energy and exergy efficiencies of the cell. It can therefore be inferred that the performance of the PEMFC and energy and exergy efficiencies of the cell are greatly influenced by the operating pressure, temperature, membrane thickness, membrane humidity, and the flow rates of fuel and oxidant.","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"20 1","pages":"1-15"},"PeriodicalIF":0.0,"publicationDate":"2016-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74740872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Emerging Photovoltaics: Organic, Copper Zinc Tin Sulphide, and Perovskite-Based Solar Cells 新兴光伏:有机、铜锌锡硫化物和钙钛矿基太阳能电池

Journal of Chemical Technology & Biotechnology Pub Date : 2016-09-06 DOI: 10.1155/2016/3971579

Shraavya Rao, Ankita Morankar, Himani Verma, P. Goswami

引用次数: 21

Preparation and Characterization of Chitosan-Humic Acid-Zerovalent Iron Nanocomposite for Nitrate Reduction in Water 壳聚糖-腐殖酸-零价铁纳米复合材料在水中还原硝酸盐的制备与表征

Journal of Chemical Technology & Biotechnology Pub Date : 2016-09-05 DOI: 10.1155/2016/1895854

C. Akinremi, Nikechukwu N. Omosun, S. Adewuyi, J. Azeez, Sanyaolu Nurudeen Olanrewaju

{"title":"Preparation and Characterization of Chitosan-Humic Acid-Zerovalent Iron Nanocomposite for Nitrate Reduction in Water","authors":"C. Akinremi, Nikechukwu N. Omosun, S. Adewuyi, J. Azeez, Sanyaolu Nurudeen Olanrewaju","doi":"10.1155/2016/1895854","DOIUrl":"https://doi.org/10.1155/2016/1895854","url":null,"abstract":"A new zerovalent iron chitosan-humic acid nanocomposite was prepared and tested for nitrate ion reduction in water. Humic acid was used for intramolecular cross-linking of the chitosan linear chains to increase the active sites on the chitosan biopolymer and then further used as a stabilizer to synthesize zerovalent iron nanoparticles by the reduction of iron (II) chloride with sodium borohydride. Characterization of the products was carried out using infrared spectroscopy, scanning electron microscope, energy dispersive X-ray, and X-ray diffractometer. Batch experiments were conducted for the reduction of nitrate in water using different concentrations of the products in different concentrations of nitrate ion and at different contact time. The adsorption equilibrium data for the nitrate solution gave a favorable adsorption according to the Langmuir equation. Varying the nanocomposite-to-nitrate ion ratio generally led to faster nitrate reduction, with the pseudofirst-order rate constant for the adsorption increasing with increase in nanocomposite-to-nitrate ion ratio. Nitrate removal efficiency of zerovalent iron chitosan-humic acid nanocomposite was further confirmed using real water samples obtained from drainage waste and river with an initial nitrate concentration of and ppm, respectively. The reduction of nitrate in water using the nanocomposite was concluded to be highly effective.","PeriodicalId":15303,"journal":{"name":"Journal of Chemical Technology & Biotechnology","volume":"61 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2016-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77935648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

The Influence of the MRSP on the Freezing and Evaporation Processes of the Magnesium Sulfate Subtype Salt Lake Brine MRSP对硫酸镁亚型盐湖卤水冻结和蒸发过程的影响

Journal of Chemical Technology & Biotechnology Pub Date : 2016-08-30 DOI: 10.1155/2016/7427413

Liu Qinghai, Kongjin Zhu, Liu Yuntao, Xing-Ling Liu, Li Feng, Li Guoju, Yong Yang, Liao Yonghua, Liu Shenglin, Wenyi Song

引用次数: 1

Tribological Performance of Si-Doped Hydrogenated Diamond-Like Carbon Coatings in Different Biodiesel 掺硅氢化类金刚石涂层在不同生物柴油中的摩擦学性能

Journal of Chemical Technology & Biotechnology Pub Date : 2016-08-21 DOI: 10.1155/2016/1307691

A. Dorner-Reisel, Z. B. Kavaklioglu, Stefan Svoboda, J. Engemann

引用次数: 6

Preparation and Characterization of Polymer-Grafted Montmorillonite-Lignocellulose Nanocomposites by In Situ Intercalative Polymerization 原位插层聚合法制备接枝蒙脱石-木质纤维素纳米复合材料及其表征

Journal of Chemical Technology & Biotechnology Pub Date : 2016-08-17 DOI: 10.1155/2016/4137398

Tavengwa Bunhu, N. Chaukura, L. Tichagwa

引用次数: 5