Template-Free Fabrication of Bi2O3 and (BiO)2CO3 Nanotubes and Their Application in Water Treatment

被引：129

作者：

Qin, Fan ^{[1
,2
]}

Li, Guangfang ^{[1
,2
]}

Wang, Runming ^{[1
,2
]}

Wu, Jiliang ^{[1
,2
]}

Sun, Hongzhe ^{[3
]}

Chen, Rong ^{[1
,2
]}

机构：

[1] Wuhan Inst Technol, Key Lab Green Chem Proc, Minist Educ, Wuhan 430073, Peoples R China

[2] Wuhan Inst Technol, Sch Chem Engn & Pharm, Wuhan 430073, Peoples R China

[3] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2012年 / 18卷 / 51期

基金：

中国国家自然科学基金;

关键词：

bismuth; nanotubes; photochemistry; solvothermal reactions; water treatment; PHOTOCATALYTIC ACTIVITY; OPTICAL-PROPERTIES; GROWTH-MECHANISM; BISMUTH; NANOSTRUCTURES; NANOPARTICLES; ADSORPTION; NANOWIRES; CR(VI); ALPHA-BI2O3;

D O I：

10.1002/chem.201201989

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Uniform bismuth oxide (Bi2O3) and bismuth subcarbonate ((BiO)2CO3) nanotubes were successfully synthesized by a facile solvothermal method without the need for any surfactants or templates. The synergistic effect of ethylene glycol (EG) and urea played a critical role in the formation of the tubular nanostructures. These Bi2O3 and (BiO)2CO3 nanotubes exhibited excellent CrVI-removal capacity. Bi2O3 nanotubes, with a maximum CrVI-removal capacity of 79 mg?g-1, possessed high removal ability in a wide range of pH values (311). Moreover, Bi2O3 and (BiO)2CO3 nanotubes also displayed highly efficient photocatalytic activity for the degradation of RhB under visible-light irradiation. This work not only demonstrates a new and facile route for the fabrication of Bi2O3 and (BiO)2CO3 nanotubes, but also provides new promising adsorbents for the removal of heavy-metal ions and potential photocatalysts for environmental remediation.

引用

页码：16491 / 16497

页数：7

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