Method to Control the Phase of TiO2 in Porous Carbon-TiO2 Composite

被引：8

作者：

Chen, Yu Xiang ^{[1
]}

Luo, Bin Hui ^{[1
]}

Zhao, Bin Yuan ^{[1
]}

Lai, Yi Jian ^{[2
]}

Wang, Hao Zhe ^{[1
]}

Gao, Meng Yao ^{[1
]}

Zhang, Wei Xun ^{[1
]}

Bin Chen, Ke ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composite Mat, Shanghai 200030, Peoples R China

[2] Shanghai Jiao Tong Univ, Phys & Chem Characterizat Ctr, Shanghai 200030, Peoples R China

来源：

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS | 2012年 / 22卷 / 01期

关键词：

Activated carbon; Carbon mesophase; Doping; TiO2; Phase transition; ACTIVATED CARBON; TRANSFORMATION; ANATASE; MOCVD; PHOTOACTIVITY; PHOTOCATALYST; ENHANCEMENT; BEHAVIORS; PARTICLES;

D O I：

10.1007/s10904-011-9564-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Activated carbon (AC)-supported composites are emerging as a novel class of materials that hold great promise for environment-protecting applications. In this paper, we present an approach for the preparation of the AC-TiO2 composite with mold-pressing using pure anatase TiO2 and self-sinterable corn straw derivative as the carbon mesophase. In order to explore the effects of the carbon mesophase and some dopants on the phase transition of anatase to rutile TiO2, the samples were characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). It was discovered that the transition could be validly influenced by the sort and content of the adulterants. As a result, the ratio between anatase and rutile could be controlled in order to improve the photocatalysis and sensing properties of TiO2. Therefore, a method for preparing the formed AC-TiO2 composite powders and monoliths with controllable anatase phase proportion for different applications could be established.

引用

页码：90 / 96

页数：7

共 21 条

[1]

Ahonen PP, 2001, J AEROSOL SCI, V32, P615

[2] Enhancement effect of TiO2 immobilized on activated carbon filter for the photodegradation of pollutants at typical indoor air level [J].

Ao, CH ;

Lee, SC .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 44 (03) :191-205

[3] Photoactivity of anatase-rutile TiO2 nanocrystalline mixtures obtained by heat treatment of homogeneously precipitated anatase [J].

Bakardjieva, S ;

Subrt, J ;

Stengl, V ;

Dianez, MJ ;

Sayagues, MJ .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 58 (3-4) :193-202

[4] Photocatalytic degradation of phenol using TiO2 nanocrystals supported on activated carbon [J].

Carpio, E ;

Zúñiga, P ;

Ponce, S ;

Solis, J ;

Rodriguez, J ;

Estrada, W .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2005, 228 (1-2) :293-298

[5] Enhanced photoactivity of silica-titania binary oxides prepared by sol-gel method [J].

Cheng, P ;

Zheng, MP ;

Huang, Q ;

Jin, YP ;

Gu, MY .

JOURNAL OF MATERIALS SCIENCE LETTERS, 2003, 22 (16) :1165-1168

[6] Synthesis of anatase TiO2 supported on porous solids by chemical vapor deposition [J].

Ding, Z ;

Hu, XJ ;

Yue, PL ;

Lu, GQ ;

Greenfield, PF .

CATALYSIS TODAY, 2001, 68 (1-3) :173-182

[7] Thermal behaviors of mesocarbon microbeads and physical properties of carbon plates [J].

Hu, XB ;

Zhao, BY ;

Hu, KA .

JOURNAL OF MATERIALS SCIENCE, 2004, 39 (05) :1735-1741

[8] Phase transformation of precipitated TiO2 nanoparticles [J].

Hu, Y ;

Tsai, HL ;

Huang, CL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 344 (1-2) :209-214

[9] In situ analysis of phase transformation in sol-gel cogelified nanopowder mixture of Al2O3 and TiO2 using synchrotron X-ray radiation diffraction experiments [J].

Jianu, A ;

Stanciu, L ;

Groza, JR ;

Lathe, C ;

Burkel, E .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 199 :44-48

[10] Carbonaceous nanomaterials for the enhancement of TiO2 photocatalysis [J].

Leary, Rowan ;

Westwood, Aidan .

CARBON, 2011, 49 (03) :741-772

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