Ionic liquid-assisted preparation of thin Bi2SiO5 nanosheets for effective photocatalytic degradation of RhB

被引：22
|
作者：
Dou, Lin [1 ]
Xiang, Yuchen [1 ]
Zhong, Junbo [1 ,2 ]
Li, Jianzhang [1 ]
Huang, Shengtian [1 ]
机构：
[1] Sichuan Univ Sci & Engn, Coll Chem & Environm Engn, Key Lab Green Catalysis Higher Educ Inst Sichuan, Zigong 643000, Peoples R China
[2] Sichuan Univ Sci & Engn, Coll Chem Engn, Zigong 643000, Peoples R China
来源：
MATERIALS LETTERS | 2020年 / 261卷
关键词：
Semiconductors; Crystal growth; Bi2SiO5; Surfaces; Charge separation; HETEROSTRUCTURE; MICROSPHERES; PERFORMANCE;
D O I：
10.1016/j.matlet.2019.127117
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thin Bi2SiO5 nanosheets with excellent photocatalytic activity were synthesized through a facile hydrothermal method in the existence of ionic liquid 1-butyl-3- methylimidazolium tetrafluorobate ([Bmim]BF4). During the preparation process, ionic liquid (IL) acts as a solvent and template for formation of thin Bi2SiO5 nanosheets. IL-Bi2SiO5 exhibits higher photocatalytic activity than Bi2SiO5 toward the removal of rhodamine B (RhB) under UV light illumination. The elimination rate constant of RhB over IL-Bi2SiO5 is eight times of that over Bi2SiO5. The enhanced photocatalytic performance of IL-Bi2SiO5 can be attributed to high BET surface area and high separation efficiency of the photo-induced carriers. (C) 2019 Elsevier B.V. All rights reserved.
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页数：4
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