PEG assisted synthesis of porous TiO2 using sol-gel processing and its characterization studies

被引：21

作者：

Balaganapathi, T. ^{[1
]}

Kaniamuthan, B. ^{[1
]}

Vinoth, S. ^{[1
]}

Thilakan, P. ^{[1
]}

机构：

[1] Pondicherry Univ, Madanjeet Sch Green Energy Technol, Ctr Green Energy Technol, Pondicherry 605014, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2017年 / 189卷

关键词：

Titanium dioxide; Sol-gel; Template; Crystallization; Porous materials; THIN-FILMS; NANOCRYSTALLINE BROOKITE; PHOTOCATALYTIC ACTIVITY; NANOPARTICLES; TEMPLATE; FABRICATION; MECHANISMS; OXIDATION; MEMBRANES; CRYSTALS;

D O I：

10.1016/j.matchemphys.2016.12.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titanium Di-oxide (TiO2) powder samples mixed with Polyethylene Glycol (PEG) were synthesized using sol-gel processing followed by solvent evaporation. Temperature induced crystallization, PEG removal and phase transition were studied using differential thermal analysis (DTA) in combination with Thermo gravimetric (TG) analysis. Crystallization with brookite structure followed by PEG decomposition was recorded below 324 degrees C resulting a three-dimensional (3D) as well as,mesoporous TiO2. BET surface area measurements revealed that the pore size was evolved between 332 nm and 12.54 nm depending upon the calcinations temperature. It is observed that the phase transition from brookite to anatase phase was resulting in crashing of porosity. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：50 / 55

页数：6

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