CdS-K2La2Ti3-xPbxO10的制备及其光催化性能

doi:10.3724/SP.J.1077.2012.12042

无机材料学报 ›› 2012, Vol. 27 ›› Issue (11): 1145-1152.DOI: 10.3724/SP.J.1077.2012.12042 CSTR: 32189.14.SP.J.1077.2012.12042

CdS-K₂La₂Ti_3-xPb_xO₁₀的制备及其光催化性能

崔文权, 齐跃丽, 刘艳飞, 刘利, 樊丽华, 胡金山, 梁英华

(河北联合大学化学工程学院, 唐山063009)

收稿日期:2012-01-15 修回日期:2012-03-26 出版日期:2012-11-20 网络出版日期:2012-10-25
作者简介:崔文权(1977–), 男, 博士, 副教授. E-mail: wkcui@163.com
基金资助:
国家自然科学基金(50972037, 51172063); 河北省自然科学基金(E2012401070)

Preparation of CdS-K₂La₂Ti_3-xPb_xO₁₀ and Its Photocatalytic Property

CUI Wen-Quan, QI Yue-Li, LIU Yan-Fei, LIU Li, FAN Li-Hua, HU Jin-Shan, LIANG Ying-Hua

(College of Chemical Engineering, Hebei United University, Tangshan 063009, China)

Received:2012-01-15 Revised:2012-03-26 Published:2012-11-20 Online:2012-10-25
About author:CUI Wen-Quan. E-mail: wkcui@163.com
Supported by:
National Natural Science Foundation of China (50972037, 51172063); Natural Science Foundation of Hebei Province, China (E2012401070)

摘要/Abstract

摘要： 采用硬脂酸法合成K₂La₂Ti_3-xPb_xO₁₀, 通过微波辅助酸交换、胺柱撑、离子交换等步骤制备了CdS插层的K₂La₂Ti_3-xPb_xO₁₀ (记作CdS-K₂La₂Ti_3-xPb_xO₁₀)复合光催化剂. 利用X射线粉末衍射(XRD), 场发射扫描电子显微镜(SEM), X射线能谱仪(EDX), 紫外–可见漫反射吸收光谱(UV-Vis), X射线光电子能谱(XPS)和光致发光光谱(PL)等对产物进行表征, 考察了CdS-K₂La₂Ti_3-xPb_xO₁₀在紫外光及可见光下催化制氢活性. 结果表明, Pb离子掺杂和CdS插层K₂La₂Ti_3-xPb_xO₁₀拓展了催化剂的可见光吸收范围, 提高了光催化活性. 微波辅助制备的催化剂在紫外光和可见光照射3 h后的产氢量分别为 230.15和3.35 mmol/(g cat), 并对光催化机理进行了分析.

关键词: 微波辅助, 插层复合, K₂La₂Ti_3-xPb_xO₁₀, CdS, 铅掺杂

Abstract: K₂La₂Ti_3-xPb_xO₁₀ powder was synthesized via a stearic acid method. CdS-intercalated K₂La₂Ti_3-xPb_xO₁₀ composite photocatalysts were synthesized via ion-exchange reaction, butylamine pillaring and sulfuration processes under the assistance of the microwave irradiation (designated as CdS-K₂La₂Ti_3-xPb_xO₁₀). The photocatalysts were determined by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray energy dispersive spectroscope (EDS), ultraviolet-visible diffuse reflection spectra (UV-Vis), X-ray photoelectron spectroscopy (XPS), and photoluminescence measurement (PL). The photocatalytic activities of CdS-K₂La₂Ti_3-xPb_xO₁₀ for hydrogen production were also investigated under UV and visible light irradiation. The results reveal that the Pb ions doping and CdS-intercalated K₂La₂Ti_3-xPb_xO₁₀ photocatalysts can widen the range of absorb visible light and greatly enhances the photocatalytic activity. The photocatalytic activities for hydrogen production of the CdS-intercalated K₂La₂Ti_3-xPb_xO₁₀ prepared via a microwave assisted procedure are 230.15 and 3.35 mmol/(g cat) under UV light and visible light irradiation, respectively, after 3 h irradiation. The mechanism photocatalysis is deduced as well.

Key words: microwave, intercalation, K₂La₂Ti_3-xPb_xO₁₀, CdS, Pb doping

中图分类号:

TB383

崔文权, 齐跃丽, 刘艳飞, 刘利, 樊丽华, 胡金山, 梁英华. CdS-K₂La₂Ti_3-xPb_xO₁₀的制备及其光催化性能[J]. 无机材料学报, 2012, 27(11): 1145-1152.

CUI Wen-Quan, QI Yue-Li, LIU Yan-Fei, LIU Li, FAN Li-Hua, HU Jin-Shan, LIANG Ying-Hua. Preparation of CdS-K₂La₂Ti_3-xPb_xO₁₀ and Its Photocatalytic Property[J]. Journal of Inorganic Materials, 2012, 27(11): 1145-1152.

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CdS-K₂La₂Ti_3-xPb_xO₁₀的制备及其光催化性能

Preparation of CdS-K₂La₂Ti_3-xPb_xO₁₀ and Its Photocatalytic Property

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