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

引用本文: 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, 30(1): 141-149. doi: 10.3866/PKU.WHXB201311211 shu

Citation: XING Wei-Nan, NI Liang, YAN Xue-Sheng, LIU Xin-Lin, LUO Ying-Ying, LU Zi-Yang, YAN Yong-Sheng, HUO Peng-Wei. Preparation of C@CdS/Halloysite Nanotube Composite Photocatalyst Using One-Step Pyrolytic Method and Its Photodegradation Properties[J]. Acta Physico-Chimica Sinica, 2014, 30(1): 141-149. doi: 10.3866/PKU.WHXB201311211 shu

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

邢伟男 ^1, ,
倪良 ^1, ,
颜学升 ^2, ,
刘馨琳 ^3, ,
罗莹莹 ^1, ,
逯子扬 ^1, ,
闫永胜 ^1, ,
霍鹏伟 ^1,

基金项目:
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) (21207053)，江苏省自然科学基金(SBK2011460)，博士后科学基金(2011M500861，2012M511219，2011M500869)

江苏大学研究生创新项目(CXLX12_0634)资助 (CXLX12_0634)

摘要:

通过一步热解法合成了一种新的复合光催化剂C@CdS/埃洛石纳米管(HNTs). 用扫描电镜(SEM)，X射线能谱(EDS)，透射电镜(TEM)，X 射线衍射(XRD)，紫外-可见漫反射光谱(UV-Vis DRS)，傅里叶变换红外(FT-IR)光谱，比表面积和拉曼光谱(RS)对材料进行表征. 利用可见光下降解四环素探究了C@CdS/HNTs 的光催化活性. 结果表明，所制备的不同热解温度的样品中，400 ℃热解温度下的样品降解四环素效果最好，可见光照射60 min 降解率能达到86%. 此外，得益于碳层、CdS和HNTs 的共同作用，光催化剂展示了很好的稳定性. 放置一年对催化活性没有任何影响，并且经过三次循环实验，光催化剂活性没有很大变化. 最后讨论了光催化剂的制备机理，并且对光催化降解过程的中间产物进行了分析.

关键词:

English

Preparation of C@CdS/Halloysite Nanotube Composite Photocatalyst Using One-Step Pyrolytic Method and Its Photodegradation Properties

1.
1 School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu Province, P. R. China;
2 JiangSu BeiSiTi Environmental Technology Project Co., Ltd., Zhenjiang 212013, Jiangsu Province, P. R. China;
3 School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu Province, P. R. China
Received Date: 15 July 2013
Available Online: 01 January 2014
Fund Project:
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)

江苏大学研究生创新项目(CXLX12_0634)资助

Abstract:

A novel photocatalyst, C@CdS/halloysite 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 ℃. 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 od 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.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

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

English

Preparation of C@CdS/Halloysite Nanotube Composite Photocatalyst Using One-Step Pyrolytic Method and Its Photodegradation Properties

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

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

English

Preparation of C@CdS/Halloysite Nanotube Composite Photocatalyst Using One-Step Pyrolytic Method and Its Photodegradation Properties

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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