光催化材料MIL-125(Ti)/BiOI的制备及光催化性能研究

doi:10.3969/j.issn.1000-5641.2019.01.011

华东师范大学学报(自然科学版) ›› 2019, Vol. 2019 ›› Issue (1): 93-104,114.doi: 10.3969/j.issn.1000-5641.2019.01.011

光催化材料MIL-125(Ti)/BiOI的制备及光催化性能研究

黄贤智, 朴贤卿, 蔡亚果

华东师范大学纳光电集成与先进装备教育部工程研究中心, 上海 200062

收稿日期:2017-10-17 出版日期:2019-01-25 发布日期:2019-01-24
通讯作者: 朴贤卿,男,教授,硕士生导师,研究方向为材料科学.E-mail:xqpiao@phy.ecnu.edu.cn;蔡亚果,女,博士研究生,研究方向为光催化.E-mail:1506188409@qq.com E-mail:xqpiao@phy.ecnu.edu.cn;1506188409@qq.com
作者简介:黄贤智,男,硕士研究生,研究方向为光催化.E-mail:834620078@qq.com.
基金资助:
海市自然科学基金（16ZR1410700）

Preparation of photocatalytic materials MIL-125(Ti)/BiOI and photocatalytic performance study

HUANG Xian-zhi, PIAO Xian-qing, CAI Ya-guo

Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, East China Normal University, Shanghai 200062, China

Received:2017-10-17 Online:2019-01-25 Published:2019-01-24

摘要/Abstract

摘要： 以五水硝酸铋、碘化钾、MIL-125（Ti）为原料，以乙二醇为溶剂，以柠檬酸为结构诱导剂，通过一步共沉淀法制备了异质结结构光催化剂MIL-125（Ti）/BiOI，并测试了该催化剂在可见光下对有机染料罗丹明B的光催化降解效果.通过XRD（X-ray Diffraction）、PL（Photolumiscence）、SEM（Scanning Electron Microscope）、BET和UV-Vis（Ultraviolet and Visible Spectrophotometer）等表征手段研究了其结构、形貌、光谱与催化性能间的关系，并从能带结构上分析了其催化机理.结果表明，通过调节Ti：Bi，MIL-125（Ti）/BiOI在可见光照射下对有机染料罗丹明B有很好的光催化降解效果，并且该催化剂具有良好的稳定性，具有一定的工业化应用前景.

关键词: MIL-125(Ti), BiOI, 可见光, 罗丹明B, 光催化降解

Abstract: With pentahydrate bismuth nitrate (Bi(NO₃)₃5H₂O), potassium iodide (KI), and MIL-125(Ti) as raw materials, ethylene glycol as solvent, and citric acid as the structural inducer, heterojunction structure light catalyst MIL-125(Ti)/BiOI was prepared through one-step coprecipitation. The effect of photocatalytic degradation of Rhodamine B in visible light was also tested. By a series of measurements, including XRD, PL, SEM, BET and UV-Vis, we researched the relationships between structure, morphology, spectrum and the catalytic performance of the catalyst. Furthermore, the catalytic mechanism was analysized via energy band structure. The results indicated that by adjusting the ratio of Ti/Bi, MIL-125(Ti)/BiOI has a good degradation effect on Rhodamine B under visible light radiation, which is stable and can be applied to industrial applications.

Key words: MIL-125(Ti), BiOI, visible light, Rhodamine B, photocatalytic degradation

中图分类号:

O469

黄贤智, 朴贤卿, 蔡亚果. 光催化材料MIL-125(Ti)/BiOI的制备及光催化性能研究[J]. 华东师范大学学报(自然科学版), 2019, 2019(1): 93-104,114.

HUANG Xian-zhi, PIAO Xian-qing, CAI Ya-guo. Preparation of photocatalytic materials MIL-125(Ti)/BiOI and photocatalytic performance study[J]. Journal of East China Normal University(Natural Sc, 2019, 2019(1): 93-104,114.

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光催化材料MIL-125(Ti)/BiOI的制备及光催化性能研究

Preparation of photocatalytic materials MIL-125(Ti)/BiOI and photocatalytic performance study

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