Comparative Investigation of Simulated Solar-driven Photocatalytic Performance of g-C3N4 Prepared by Different Precursors

Yujun Si, J. Zhong, Jianzhang Li, Xinlu Liu, Wei Hu, Jiabo Song, Fengjia Zhang, Kewei Liu, Ke-Jing Huang, Songlin Wu, Ruhao Yang, T. Zeng, Minjiao Li
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引用次数: 1

Abstract

Abstract g-C3N4 was prepared by heating different precursors. The photocatalysts were characterized by Brunauer- Emmett-Teller (BET) method, X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis diffuse reflectance spectroscopy, particle size analyzer and surface photovoltage (SPV) spectroscopy, respectively. The photocatalytic activities of g-C3N4 prepared by different precursors for decolorization of rhodamine B aqueous solution were evaluated. The results show that g-C3N4 prepared by heating urea exhibits the best photocatalytic activity under simulated solar irradiation, which can be assigned to the relative higher specific surface area, the smaller particle size, the higher separation efficiency of photo-generated charge pairs, the higher adsorption toward rhodamine B aqueous solution.
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不同前驱体制备的g-C3N4模拟太阳驱动光催化性能的比较研究
摘要采用不同前驱体加热法制备了g-C3N4。采用bruauer - emmet - teller (BET)法、x射线衍射(XRD)、扫描电镜(SEM)、UV-Vis漫反射光谱、粒径分析仪和表面光电压(SPV)光谱对催化剂进行了表征。考察了不同前驱体制备的g-C3N4对罗丹明B水溶液脱色的光催化活性。结果表明,尿素加热法制备的g-C3N4在模拟太阳照射下表现出最佳的光催化活性,表现为相对较高的比表面积、较小的粒径、较高的光生电荷对分离效率以及对罗丹明B水溶液的吸附性。
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0.88
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1 months
期刊介绍: The Journal of advanced oxidation technologies (AOTs) has been providing an international forum that accepts papers describing basic research and practical applications of these technologies. The Journal has been publishing articles in the form of critical reviews and research papers focused on the science and engineering of AOTs for water, air and soil treatment. Due to the enormous progress in the applications of various chemical and bio-oxidation and reduction processes, the scope of the Journal is now expanded to include submission in these areas so that high quality submission from industry would also be considered for publication. Specifically, the Journal is soliciting submission in the following areas (alphabetical order): -Advanced Oxidation Nanotechnologies -Bio-Oxidation and Reduction Processes -Catalytic Oxidation -Chemical Oxidation and Reduction Processes -Electrochemical Oxidation -Electrohydraulic Discharge, Cavitation & Sonolysis -Electron Beam & Gamma Irradiation -New Photocatalytic Materials and processes -Non-Thermal Plasma -Ozone-based AOTs -Photochemical Degradation Processes -Sub- and Supercritical Water Oxidation -TiO2 Photocatalytic Redox Processes -UV- and Solar Light-based AOTs -Water-Energy (and Food) Nexus of AOTs
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