Sustainable molecular oxygen activation with oxygen vacancies on the {001} facets of BiOCl nanosheets under solar light

被引：362

作者：

Li, Hao ^{[1
]}

Shi, Jingu ^{[1
]}

Zhao, Kun ^{[1
]}

Zhang, Lizhi ^{[1
]}

机构：

[1] Cent China Normal Univ, Coll Chem, Inst Environm Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China

来源：

NANOSCALE | 2014年 / 6卷 / 23期

基金：

美国国家科学基金会;

关键词：

SINGLE-CRYSTALLINE NANOSHEETS; VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITY; ADSORBED O-2; SURFACE; TIO2; TIO2(110); CHEMISORPTION; SPECTROSCOPY; CONVERSION;

D O I：

10.1039/c4nr04810e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate that oxygen vacancies on the {001} facets of BiOCl nanosheets can more sustainably activate molecular oxygen for organic pollutant removal under solar light than the TiO2 counterparts. The oxygen vacancies on the {001} facets of BiOCl nanosheets are effectively refreshed by UV light, and are also responsible for the efficient utilization of visible light to activate molecular oxygen, accounting for their long term stability and high efficiency.

引用

页码：14168 / 14173

页数：6

共 23 条

[1] Peroxide and superoxide states of adsorbed O2 on anatase TiO2 (101) with subsurface defects [J].

Aschauer, Ulrich ;

Chen, Jia ;

Selloni, Annabella .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (40) :12956-12960

[2] Electronic structure and quantum dynamics of photoinitiated dissociation of O2 on rutile TiO2 nanocluster [J].

Dholabhai, Pratik P. ;

Yu, Hua-Gen .

JOURNAL OF CHEMICAL PHYSICS, 2013, 138 (19)

[3] Facile Oxidative Conversion of TiH2 to High-Concentration Ti3+-Self-Doped Rutile TiO2 with Visible-Light Photoactivity [J].

Grabstanowicz, Lauren R. ;

Gao, Shanmin ;

Li, Tao ;

Rickard, Robert M. ;

Rajh, Tijana ;

Liu, Di-Jia ;

Xu, Tao .

INORGANIC CHEMISTRY, 2013, 52 (07) :3884-3890

[4] Vacancy Associates Promoting Solar-Driven Photocatalytic Activity of Ultrathin Bismuth Oxychloride Nanosheets [J].

Guan, Meili ;

Xiao, Chong ;

Zhang, Jie ;

Fan, Shaojuan ;

An, Ran ;

Cheng, Qingmei ;

Xie, Junfeng ;

Zhou, Min ;

Ye, Bangjiao ;

Xie, Yi .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (28) :10411-10417

[5] Interaction of molecular oxygen with the vacuum-annealed TiO2(110) surface:: Molecular and dissociative channels [J].

Henderson, MA ;

Epling, WS ;

Perkins, CL ;

Peden, CHF ;

Diebold, U .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (25) :5328-5337

[6] DISCOVERY OF REVERSIBLE PHOTOCHROMISM IN TITANIUM-DIOXIDE USING PHOTOACOUSTIC-SPECTROSCOPY - IMPLICATIONS FOR THE INVESTIGATION OF LIGHT-INDUCED CHARGE-SEPARATION AND SURFACE REDOX PROCESSES IN TITANIUM-DIOXIDE [J].

HIGHFIELD, JG ;

GRATZEL, M .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (02) :464-467

[7] Synthesis and Facet-Dependent Photoreactivity of BiOCl Single-Crystalline Nanosheets [J].

Jiang, Jing ;

Zhao, Kun ;

Xiao, Xiaoyi ;

Zhang, Lizhi .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (10) :4473-4476

[8]

Justicia I, 2002, ADV MATER, V14, P1399, DOI 10.1002/1521-4095(20021002)14:19<1399::AID-ADMA1399>3.0.CO

[9]

2-C

[10] Oxygen vacancy induced selective silver deposition on the {001} facets of BiOCl single-crystalline nanosheets for enhanced Cr(VI) and sodium pentachlorophenate removal under visible light [J].

Li, Hao ;

Zhang, Lizhi .

NANOSCALE, 2014, 6 (14) :7805-7810

← 1 2 3 →