球磨法制备复合光催化剂Bi12TiO20/ZnO及其光催化性能

doi:10.7517/j.issn.1674-0475.2010.03.202

影像科学与光化学 ›› 2010, Vol. 28 ›› Issue (3): 202-208.DOI: 10.7517/j.issn.1674-0475.2010.03.202

球磨法制备复合光催化剂Bi₁₂TiO₂₀/ZnO及其光催化性能

王岩玲, 王俊恩, 曹静, 林海莉

淮北师范大学, 化学与材料科学学院, 安徽, 淮北, 235000

收稿日期:2009-12-31 修回日期:2010-02-28 出版日期:2010-05-23 发布日期:2010-05-23
通讯作者: 王岩玲,Tel:(0561)3803233;E-mail:whwjiv@yahoo.com.cn.
基金资助:
安徽省高校青年教师“资助计划”项目(2007jql157);安徽省“含能材料”重点实验室开放基金(KLEM2009012,KLEM2009013)

Preparation of the Coupled Photocatalyst Bi₁₂TiO₂₀/ZnO by Ball Milling and Its Activity Evaluation

WANG Yan-ling, WANG Jun-en, CAO Jing, LIN Hai-li

School of Chemistry and Materials Science, Huaibei Normal University, Huaibei Coal Normal College, Huaibei 235000, Anhui, P. R. China

Received:2009-12-31 Revised:2010-02-28 Online:2010-05-23 Published:2010-05-23

摘要/Abstract

摘要： 本文用水作为分散介质,采用球磨法掺杂一定量的Bi₁₂TiO₂₀于ZnO中制备复合光催化剂Bi₁₂TiO₂₀/ZnO. 利用UV-Vis、XRD和SEM等仪器对样品进行了分析与表征. 通过对甲基橙的氧化来研究其光催化活性. 结果表明,光催化剂Bi₁₂TiO₂₀/ZnO对甲基橙氧化的催化活性高于氧化锌的催化活性.当Bi₁₂TiO₂₀的掺杂量为0.5%(质量分数),球磨时间为12 h,焙烧温度为300℃时,光照20 min后,复合光催化剂Bi₁₂TiO₂₀/ZnO对甲基橙的降解率可达到95.2%.

关键词: 氧化锌, 钛酸铋, 光催化剂, 球磨

Abstract: The coupled photocatalyst Bi₁₂TiO₂₀/ZnO was prepared by ball milling of ZnO in H₂O solution doped with Bi₁₂TiO₂₀.The structural and optial properties of the coupled photocatalyst Bi₁₂TiO₂₀/ZnO were characterized by X-ray powder diffraction (XRD),scanning electron microscopy (SEM) and UV-Vis diffuse reflection spectrum (DRS).The photocatalytic activity of the photocatalyst was evaluated by degradation of methyl orange.The results showed that the photocatalytic activity of the coupled photocatalyst Bi₁₂TiO₂₀/ZnO was higher than that of ZnO on the photocatalytic degradation of methyl orange.The photocatalytic degradation ratio was up to about 95.2% in 20 min using Bi₁₂TiO₂₀ (0.5%)/ZnO which was milled for 12 h and calcined at 300℃.

Key words: zinc oxide, bismuth titanate, photocatalyst, ball milling

中图分类号:

王岩玲, 王俊恩, 曹静, 林海莉. 球磨法制备复合光催化剂Bi₁₂TiO₂₀/ZnO及其光催化性能[J]. 影像科学与光化学, 2010, 28(3): 202-208.

WANG Yan-ling, WANG Jun-en, CAO Jing, LIN Hai-li. Preparation of the Coupled Photocatalyst Bi₁₂TiO₂₀/ZnO by Ball Milling and Its Activity Evaluation[J]. Imaging Science and Photochemistry, 2010, 28(3): 202-208.

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球磨法制备复合光催化剂Bi₁₂TiO₂₀/ZnO及其光催化性能

Preparation of the Coupled Photocatalyst Bi₁₂TiO₂₀/ZnO by Ball Milling and Its Activity Evaluation

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