水热合成Bi<sub>2</sub>WO<sub>6</sub>/SC光催化剂及其光催化脱硝性能研究

贾腾飞; 王亮; 李春虎; 闫欣; 杨微微; 冯丽娟

水热合成Bi₂WO₆/SC光催化剂及其光催化脱硝性能研究

中国海洋大学化学化工学院, 山东青岛 266100

基金项目: 青岛市科技发展计划(13-1-4-191-jch);山东省博士后创新基金(201203105)。

详细信息

通讯作者:
王亮(1981-),男,博士,讲师,主要从事光催化剂的设计和开发。E-mail:wangliang_good@163.com。

中图分类号: X511
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- 文章访问数: 351
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- 被引次数: 0
出版历程
- 收稿日期: 2014-12-24
- 修回日期: 2015-02-10
- 刊出日期: 2015-06-30

Hydrothermal synthesis of Bi₂WO₆/SC catalyst and its photo-catalytic performance in NO removal

College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

摘要

摘要: 以活性半焦(SC)为载体,采用水热法合成新型可见光催化剂Bi₂WO₆ /SC, 利用SEM、BET、XRD、FT-IR和紫外可见漫反射(UV-vis)光谱等系列手段对所制备的样品进行了表征,并以可见光(λ＞ 400 nm)为光源,模拟烟气中的NO为氧化脱除对象,进行光催化活性测试。结果表明,通过水热法合成的Bi₂WO₆具有微米花形状,且光响应波长已扩展到400 nm以上的可见光区, Bi₂WO₆/SC光催化脱硝剂性能最好,反应4 h后脱硝率仍高于70%。
- 钨酸铋 /
- 烟气 /
- 光催化 /
- 脱硝
Abstract: A novel Bi₂WO₆/SC photo-catalyst was synthesized by hydrothermal method with semi-coke (SC) as the support. The as-prepared catalyst was characterized by SEM, BET, XRD, FT-IR and UV-vis diffuse reflectance spectra; its photo-catalytic activity in NO oxidation under visible light irradiation (λ> 400 nm) was evaluated. The results indicate that Bi₂WO₆ obtained by hydrothermal method displays micro-flower structure and absorption spectrum toward the visible light region above 400 nm. The Bi₂WO₆/SC catalyst exhibits excellent photo-catalytic activity in NO removal; NO conversion remains higher than 70% after reaction under irradiation for 4 h.
- Bi₂WO₆ /
- flue gas /
- photo-catalysis /
- NO removal

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参考文献(11)

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