Chemical Industry and Engineering Progree ›› 2016, Vol. 35 ›› Issue (04): 1121-1125.DOI: 10.16085/j.issn.1000-6613.2016.04.024

• Industrial catalysis • Previous Articles     Next Articles

Synthesis and photocatalytic activity of Eu-doped BiVO4 nanosheets by hydrothermal method

WANG Zhixin1, HUANG Shaobin1, FEI Zhibin2, JIAN Zicong1   

  1. 1. College of Environment and Energy, South China University of Technology, Guangzhou 510000, Guangdong, China;
    2. Troops 75822 of People's Libration Army, Guangzhou 510510, Guangdong, China
  • Received:2015-07-27 Revised:2015-10-29 Online:2016-04-05 Published:2016-04-05

水热法制备Eu复合BiVO4纳米片及其光催化降解性能

汪志新1, 黄少斌1, 费志宾2, 简子聪1   

  1. 1. 华南理工大学环境与能源学院, 广东 广州 510006;
    2. 中国人民解放军75822部队, 广东 广州 510510
  • 通讯作者: 黄少斌,博士,教授.E-mail:chshuang@scut.edu.cn.
  • 作者简介:汪志新(1992-),男,硕士研究生,主要从事纳米光催化材料的研究.E-mail:wang_870207314@163.com.
  • 基金资助:
    国家自然科学基金(51378217)、广东省自然科学基金(2014B050505004)及广东省科技计划(2015B020215004)项目.

Abstract: Eu-doped BiVO4 photocatalysts were synthesized by hydrothermal method using PEG-200 as the template. The material were characterized by XRD, SEM, UV-vis DRS and BET. The photocatalytic degradation rate of methyl blue was used to investigate the influence of the dopants for the photocatalytic activity of BiVO4. The results revealed that the dopants had a significant effect on the transition of crystal phase, prevention of the crystal growth and the increase of BET. Some Bi3+ in the BiVO4 crystal lattice were substituted by Eu3+ leading to a crystal distortion, which was beneficial for the enhancement of photocatalytic activity. For 50% Eu-doped BiVO4 nanosheets, it performed with the best photocatalytic activity. The photodegradation rate of MB was 90% after 120min visible light irradiation, which was much higher than that of pure BiVO4.

Key words: hydrothermal, preparation, catalyst, degradation

摘要: 水热法制备了以聚乙二醇(PEG-200)为模板剂的稀土元素Eu复合BiVO4光催化剂,并对材料进行XRD、SEM、UV-vis DRS、BET的表征和分析.以光催化降解甲基蓝(MB)效率作为光催化活性的指标,考察Eu复合对BiVO4光催化活性的影响.结果表明:Eu复合可使BiVO4的晶型发生转变,同时又抑制四方相晶体生长,使晶粒尺寸变小,比表面积增大.复合样品中,部分Eu3+进入BiVO4晶格内取代Bi3+,使晶形发生畸变,有利于光催化活性的提高.当Eu的复合量为50%时,光催化降解甲基蓝的效率最高,可见光照射120min降解效率可达到90%,较纯BiVO4的光降解效率明显提高.

关键词: 水热, 制备, 催化剂, 降解

CLC Number: 

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