Synthesis, characterization and photocatalytic performance of self-assembled mesoporous TiO2 nanoparticles

被引：18

作者：

Lin, Yuan-Chung ^{[2
]}

Liu, Shou-Heng ^{[1
]}

Syu, Han-Ren ^{[1
]}

Ho, Tsung-Han ^{[1
]}

机构：

[1] Natl Kaohsiung Univ Appl Sci, Dept Chem & Mat Engn, Kaohsiung 80778, Taiwan

[2] Natl Sun Yat Sen Univ, Inst Environm Engn, Kaohsiung 804, Taiwan

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2012年 / 95卷

关键词：

Mesoporous; Self-assembly; Photocatalytic; Water splitting; X-ray diffraction; SULFATED TIO2; TITANIA; FILMS; DEGRADATION; OXIDATION; ANATASE; CELLS; WATER; DYE;

D O I：

10.1016/j.saa.2012.03.080

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A facile synthesis route is reported for preparation of mesoporous TiO2 nanoparticles (MT-x) through evaporation induced self-assembly by using Pluronic F127, titanium isopropoxide, and various amounts of ethanol as templating agents, titanium sources and solvents, respectively. A variety of different spectroscopic and analytical techniques, such as small- and large-angle powder X-ray diffraction (XRD). N-2 adsorption-desorption isotherms, transmission electron microscopy (TEM), Raman and Fourier transform infrared (FTIR) spectroscopies were used to characterize the physicochemical properties of various MT-x catalysts. Among the catalysts. MT-20 was found to have better mesostructures formed by the arrangement of anatase TiO2 nanoparticles of ca. 17.3 nm with broad interparticle pore size distribution. Hydrogen generation from water splitting on MT-20 using visible light was enhanced by at least 8.7 times if compared with the conventional TiO2 photocatalyst. The superior photocatalytic performances observed for the synthesized MT-20 may be attributed to the presence of unique nanostructures in the TiO2 photocatalysts. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：300 / 304

页数：5

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