HZSM-5分子筛负载SrTiO<sub>3</sub>光催化降解活性艳红X-3B

杨丽丽; 李传国; 王宏; 胡婷婷; 张文杰

doi:10.13801/j.cnki.fhclxb.20160220.001

HZSM-5分子筛负载SrTiO₃光催化降解活性艳红X-3B

沈阳理工大学环境与化学工程学院, 沈阳 110159

基金项目: 国家自然科学基金青年基金（51504154）；辽宁省教育厅科技研究一般项目（L2014081）；辽宁省自然科学基金（2015020186）

详细信息

通讯作者:
张文杰,博士,教授,硕士生导师,研究方向为环境功能材料。E-mail:wjzhang@aliyun.com

中图分类号: TQ174
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出版历程
- 收稿日期: 2015-12-14
- 修回日期: 2016-01-27
- 刊出日期: 2016-11-14

Photocatalytic degradation of reactive brilliant red X-3B on SrTiO₃ supported on HZSM-5 molecular sieve

School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China

摘要

摘要: 采用溶胶-凝胶法制备HZSM-5分子筛负载SrTiO₃，对其进行XRD、FTIR和N₂吸附-脱附表征，研究负载对活性艳红X-3B光催化降解过程的影响。通过分析降解液的FTIR谱图、紫外-可见光谱和总有机碳（TOC）数据，对活性艳红X-3B的光催化降解过程进行了探讨。结果表明：催化剂的主要成分为钙钛矿结构SrTiO₃，负载对SrTiO₃晶粒尺寸几乎没有影响。纯SrTiO₃没有明显的孔结构，负载后样品的比表面积和孔隙主要由HZSM-5提供。负载之后催化剂的降解活性显著提高，30% SrTiO₃/HZSM-5对活性艳红X-3B染料溶液的脱色和TOC去除速率最快。
- 钛酸锶 /
- 活性艳红X-3B /
- 光催化 /
- HZSM-5 /
- 负载
Abstract: SrTiO₃ was supported on HZSM-5 molecular sieve by sol-gel method. XRD, FTIR, and N₂ adsorption-desorption measurements were carried out to study the influences of supporting on photocatalytic degradation process of reactive brilliant red X-3B. The processes in photocatalytic degradation of reactive brilliant red X-3B were discussed after analyzing the data of FTIR spectra, ultraviolet-visible spectroscopy, and total organic carbon (TOC) data of the solutions during degradation. The results show that the photocatalysts are mainly composed of perovskite SrTiO₃. Crystallite size of SrTiO₃ has nearly no change after supporting. Pure SrTiO₃ does not have apparent porous structure, so that specific surface area and pores of the supported samples are mainly provided by HZSM-5. Photocatalytic activity of the supported catalysts is obviously improved with the fastest decoloration and TOC removal rates on 30% SrTiO₃/HZSM-5 for reactive brilliant red X-3B.
- strontium titanate /
- reactive brilliant red X-3B /
- photocatalytic /
- HZSM-5 /
- support