物理化学学报Issue(1)：141-149,9.DOI:10.3866/PKU.WHXB201311211
C@CdS/埃洛石纳米管复合光催化剂一步热解法的制备及光降解性能
Preparation of C@CdS/Halloysite Nanotube Composite Photocatalyst Using One-Step Pyrolytic Method and Its Photodegradation Properties
摘要
Abstract
A novel photocatalyst, C@CdS/hal oysite nanotubes (HNTs), was synthesized using a facile and effective pyrolytic method. The as-prepared photocatalyst was characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, specific surface area measurements, and X-ray energy dispersive, ultraviolet-visible diffuse reflectance, Fourier-transform infrared, specific surface area, and Raman spectroscopies. The photocatalytic activity of the sample was evaluated by the degradation of tetracycline (TC) under visible-light irradiation. The influence of different pyrolysis temperatures on the photocatalytic degradation of TC was investigated. The optimal pyrolysis temperature was found to be 400 °C. The photodegradation rate reached 86%in 60 min under visible-light irradiation. In addition, benefiting from the common effects of carbon, CdS, and HNTs, the photocatalyst exhibited good chemical stability. After being laid aside for one year, the photocatalytic efficiency was unaffected and the photocatalyst retained its high catalytic activity after three catalytic cycles. Based on our experimental results, the preparation mechanism and degradation of the intermediate product of TC are discussed.关键词
硫化镉/碳/埃洛石纳米管/光催化降解/四环素/重复性Key words
Cadmium sulfide/Carbon/Hal oysite nanotube/Photocatalytic degradation/Tetracycline/Reusability分类
化学化工引用本文复制引用
邢伟男,倪良,颜学升,刘馨琳,罗莹莹,逯子扬,闫永胜,霍鹏伟..C@CdS/埃洛石纳米管复合光催化剂一步热解法的制备及光降解性能[J].物理化学学报,2014,(1):141-149,9.基金项目
The project was supported by the National Natural Science Foundation of China (21207053), Natural Science Foundation of Jiangsu Province, China (SBK2011460), China Postdoctoral Science Foundation (2011M500861,2012M511219,2011M500869), and Program for Postgraduate Research Innovation in University of Jiangsu University, China (CXLX12_0634).@@@@国家自然科学基金(21207053),江苏省自然科学基金(SBK2011460),博士后科学基金(2011M500861,2012M511219,2011M500869)和江苏大学研究生创新项目(CXLX12_0634)资助 （21207053）
