Hierarchical Bi2O2CO3 microspheres with improved visible-light-driven photocatalytic activity

被引：180

作者：

Zhao, Tianyu ^{[1
]}

Zai, Jiantao ^{[1
]}

Xu, Miao ^{[1
]}

Zou, Qiong ^{[1
]}

Su, Yuezeng ^{[2
]}

Wang, Kaixue ^{[1
]}

Qian, Xuefeng ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Aeronaut & Astronaut, Shanghai 200240, Peoples R China

来源：

CRYSTENGCOMM | 2011年 / 13卷 / 12期

基金：

中国国家自然科学基金;

关键词：

ELECTRONIC-STRUCTURE; ARRAYS;

D O I：

10.1039/c1ce05113j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A high-efficiency Bi2O2CO3 photocatalyst was successfully synthesized using tri-sodium citrate as both the coordinating agent and carbon source through a hydrothermal process. Morphology modulation of the obtained products could be easily realized by tuning the concentration of tri-sodium citrate in sponge-like, rose-like and plate-like shapes. The as-prepared sponge-like Bi2O2CO3 microspheres, owning a narrowed band gap of 2.87 eV and a higher BET surface area of 43.99m(2) g(-1), exhibit powerful visible-light-photocatalytic activity for the degradation of dyes under 300 W Xe lamp light irradiation. It is worthy to note that the optimal sponge-like Bi2O2CO3 microspheres also possess superior photocatalytic ability under natural sunlight.

引用

页码：4010 / 4017

页数：8

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