| BiOCl/BiPO_4复合光催化剂的制备及其性能研究 |
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| 引用本文： | 陈寒阳,李瑞桢,陈宇,杜立君,胡禹,许晓樱,熊建蓉,程佳佳.BiOCl/BiPO_4复合光催化剂的制备及其性能研究[J].分子催化,2021,35(2):130-140. |
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| 作者姓名： | 陈寒阳 李瑞桢 陈宇 杜立君 胡禹 许晓樱 熊建蓉 程佳佳 |
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| 作者单位： | 四川轻化工大学,四川轻化工大学，国家环境保护水土污染协同控制与联合修复重点实验室（成都理工大学）,四川轻化工大学,四川轻化工大学,四川轻化工大学 |
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| 基金项目： | 国家自然科学基金青年基金 |
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| 摘 要： | 采用溶剂热法制备了BiPO_4纳米棒,再采用沉积沉淀法在BiPO_4纳米棒上沉积了不同质量比的BiOCl纳米片形成一系列的BiOCl/BiPO_4复合材料.利用扫描电镜、透射电镜、 X射线衍射和紫外可见漫反射光谱等手段对所合成的材料的物理化学性能进行了表征,并通过测试光电流、电化学阻抗、光致发光光谱等,进行光催化降解甲基橙和酸性红Ⅰ染料废水实验,评价了所合成材料的光电化学性能和光催化性能.研究结果表明, BiOCl纳米片(直径范围为100～400 nm)已成功沉积在BiPO_4纳米棒(直径100～200 nm、长度0.3～1.4μm)表面形成复合材料,复合材料没有改变单一材料的晶型和结晶度,其由结晶度较高的独居石结构单斜型BiPO_4和正方相BiOCl组成.与单一BiPO_4纳米棒相比,复合材料的光吸收范围更宽,光催化活性增强,最佳质量比(0.2)的复合材料在光照15 min时对甲基橙的降解率达到96.69%,在光照6 min时对酸性红降解率达到96.21%.根据光电化学性能测试结果 ,复合材料比单一材料具有更好的光生电荷分离效率、转移效率及更慢的复合速率.通过自由基捕获实验及材料的能带结构测算和验证,进一步分析了复合材料的光催化机理,复合材料光催化活性增强的原因是形成了p-n异质结.
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| 关 键 词： | BiPO4 BiOCl p-n异质结 有机染料 |
| 收稿时间： | 2020/11/18 0:00:00 |
| 修稿时间： | 2020/12/3 0:00:00 |
Preparation of BiOCl/ BiPO4 Photocatalyst Composite and Its Properties Study |
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| CHEN Han-yang,LI Rui-zhen,CHEN Yu,DU Li-jun,HU Yu,XU Xiao-ying,XIONG Jian-rong and CHENG Jia-jia.Preparation of BiOCl/ BiPO4 Photocatalyst Composite and Its Properties Study[J].Journal of Molecular Catalysis (China),2021,35(2):130-140. |
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| Authors: | CHEN Han-yang LI Rui-zhen CHEN Yu DU Li-jun HU Yu XU Xiao-ying XIONG Jian-rong and CHENG Jia-jia |
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| Institution: | School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China,School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China;Chengdu University of Technology, State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu 610059, China,School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China,School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China,School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China,School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China,School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China and School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China |
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| Abstract: | |
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| Keywords: | BiPO4 BiOCl p-n heterojunction organic dye |
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