Anatase TiO2 mesocrystals with exposed (001) surface for enhanced photocatalytic decomposition capability toward gaseous styrene

被引:42
作者
Chen, Jiangyao [1 ,3 ]
Li, Guiying [1 ]
Zhang, Haimin [2 ]
Liu, Porun [2 ]
Zhao, Huijun [2 ]
An, Taicheng [1 ]
机构
[1] Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
[2] Griffith Univ, Ctr Clean Environm & Energy, Nathan, Qld 4222, Australia
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词
Anatase TiO2 mesocrystals; Solvothermal synthesis; High energy {001} facets; Photocatalytic activity; Volatile organic compounds; CRYSTAL FACETS; COMPOSITE PHOTOCATALYST; SOLVOTHERMAL SYNTHESIS; CARBON NANOTUBES; SINGLE-CRYSTALS; LITHIUM STORAGE; MESOPOROUS TIO2; DEGRADATION; NANOSHEETS; TRANSFORMATION;
D O I
10.1016/j.cattod.2013.10.073
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Anatase TiO2 mesocrystals with exposed (0 0 1) surface have been successfully synthesized by a facile one-step solvothermal method using NH4F as the structure regulator in glacial acetic acid environment. The exposed (0 0 1) surface of the obtained anatase TiO2 mesocrystal was consisted of numerous nanocrystals with exposed {0 0 1} facet. The results indicated that both the added amount of NH4F and solvothermal reaction time played significant roles in the formation of anatase TiO2 mesocrystals with exposed (0 0 1) surface. A possible formation mechanism of anatase TiO2 mesocrystal with exposed (0 0 1) surface was proposed based on the experimental data. As UV active photocatalysts, the resultant anatase TiO2 mesocrystals were evaluated in detail by photocatalytic decomposition of gaseous styrene. The results demonstrated that the anatase TiO2 mesocrystals fabricated by solvothermal treating a mixture of 0.50 g NH4F, 2.50 mL Ti(OC4H9)(4) and 50 mL of glacial acetic acid at 210 degrees C for 24h exhibited the highest photocatalytic activity to the decomposition of styrene. This is due to the synergistic effects of excellent crystallinity, high energy {0 0 1} crystal facets, relatively large surface area, enhanced bandgap energy and unique mesoporous structure. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:216 / 224
页数:9
相关论文
共 44 条
[1]   Structural and photocatalytic degradation characteristics of hydrothermally treated mesoporous TiO2 [J].
An, Taicheng ;
Liu, Jikai ;
Li, Guiying ;
Zhang, Shanqing ;
Zhao, Huijun ;
Zeng, Xiangying ;
Sheng, Guoying ;
Fu, Jiamo .
APPLIED CATALYSIS A-GENERAL, 2008, 350 (02) :237-243
[2]   Synthesis of Carbon Nanotube-Anatase TiO2 Sub-micrometer-sized Sphere Composite Photocatalyst for Synergistic Degradation of Gaseous Styrene [J].
An, Taicheng ;
Chen, Jiangyao ;
Nie, Xin ;
Li, Guiying ;
Zhang, Haimin ;
Liu, Xiaolu ;
Zhao, Huijun .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (11) :5988-5996
[3]   Photocatalytic degradation of gaseous trichloroethene using immobilized ZnO/SnO2 coupled oxide in a flow-through photocatalytic reactor [J].
An, TC ;
Zhang, ML ;
Wang, XM ;
Sheng, GY ;
Fu, JM .
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2005, 80 (03) :251-258
[4]   1H and 13C NMR observation of the reaction of acetic acid with titanium isopropoxide [J].
Birnie, DP ;
Bendzko, NJ .
MATERIALS CHEMISTRY AND PHYSICS, 1999, 59 (01) :26-35
[5]   Synthesis of TiO2 hollow sphere multimer photocatalyst by etching titanium plate and its application to the photocatalytic decomposition of gaseous styrene [J].
Chen, Jiangyao ;
Nie, Xin ;
Shi, Huixian ;
Li, Guiying ;
An, Taicheng .
CHEMICAL ENGINEERING JOURNAL, 2013, 228 :834-842
[6]   Optimization synthesis of carbon nanotubes-anatase TiO2 composite photocatalyst by response surface methodology for photocatalytic degradation of gaseous styrene [J].
Chen, Jiangyao ;
Li, Guiying ;
Huang, Yong ;
Zhang, Haimin ;
Zhao, Huijun ;
An, Taicheng .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 123 :69-77
[7]   Synthesis and characterization of novel SiO2 and TiO2 co-pillared montmorillonite composite for adsorption and photocatalytic degradation of hydrophobic organic pollutants in water [J].
Chen, Jiangyao ;
Liu, Xiaolu ;
Li, Guiying ;
Nie, Xin ;
An, Taicheng ;
Zhang, Shanqing ;
Zhao, Huijun .
CATALYSIS TODAY, 2011, 164 (01) :364-369
[8]   Carbonate ions-assisted syntheses of anatase TiO2 nanoparticles exposed with high energy (001) facets [J].
Han, Xiguang ;
Wang, Xue ;
Xie, Shuifen ;
Kuang, Qin ;
Ouyang, Junjie ;
Xie, Zhaoxiong ;
Zheng, Lansun .
RSC ADVANCES, 2012, 2 (08) :3251-3253
[9]   Synthesis of Titania Nanosheets with a High Percentage of Exposed (001) Facets and Related Photocatalytic Properties [J].
Han, Xiguang ;
Kuang, Qin ;
Jin, Mingshang ;
Xie, Zhaoxiong ;
Zheng, Lansun .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (09) :3152-+
[10]   Gas adsorption characterization of ordered organic-inorganic nanocomposite materials [J].
Kruk, M ;
Jaroniec, M .
CHEMISTRY OF MATERIALS, 2001, 13 (10) :3169-3183