Pyrolysis study of sol-gel derived TiO2 powders -: Part I.: TiO2-anatase prepared by reacting titanium(IV) isopropoxide with formic acid

被引：53

作者：

Campostrini, R

Ischia, M

Palmisano, L

机构：

[1] Univ Trent, Dipartimento Ingn Mat, I-38050 Trent, Italy

[2] Univ Palermo, Dipartimento Ingn Chim Proc & Mat, I-90128 Palermo, Italy

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2003年 / 71卷 / 03期

关键词：

pyrolysis study; thermogravimetric-mass spectrometric coupled analyses; TiO2; gel;

D O I：

10.1023/A:1023307100279

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A homogeneous TiO2 gel sample was prepared, via sol-gel method, hydrolysing titanium(IV) isopropoxide, previously modified by reaction with formic acid. The amorphous TiO2 gel was characterized using various techniques such as FT-IR, XRD and N-2 adsorption analysis. Thermoanalyses (TG, DTA) coupled with gas chromatographic (GC) and mass spec trometric measurements (MS), by means of a home-assembled instrumental interfaces, were performed in order to quantify the organic component still present in the titania gel and its release during pyrolysis. Several chemical species were evolved and detected in gas phase for temperatures up to 350degreesC, before crystallization of TiO2-anatase.

引用

页码：997 / 1009

页数：13

共 26 条

[1] PHOTOCATALYTIC DEGRADATION OF NITROPHENOLS IN AQUEOUS TITANIUM-DIOXIDE DISPERSION [J].