lnfluence of pH Value and Route From Sol to Gel on the Phase Transition of TiO2 Prepared by Sol-Gel

Journal of Liaoning Petrochemical University ›› 2009, Vol. 29 ›› Issue (1): 45-47.

Previous Articles Next Articles

lnfluence of pH Value and Route From Sol to Gel on the Phase Transition of TiO2 Prepared by Sol-Gel

ZHANG Jing， ZHANG Dan

School of Chemistry and Materials Science，Liaoning University of Petroleum & Chemical Technology，Fushun Liaoning 113001

Received:2008-11-17 Published:2009-03-25 Online:2017-07-05

pH 值及胶凝方式对Sol-Gel制备TiO2 相变的影响

张静,张丹

辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

作者简介:张静(1980- ),女,内蒙古兴安盟乌兰浩特市,博士

Abstract

Abstract: With Ti(OBu)4 as precursor, nanoTiO2 particle was prepared by Sol-Gel method. The temperature of phase transition was studied under different conditions. The results showed that， the beginning temperature of the phase transition is lower when nanoTiO2 was prepared at lower pH value. When vacuum dry was used, the phase transformation was inhibited obviously. However, the phase transformation was accelerated when infrared dry was used.

Key words: Sol-Gel , TiO2 , Phase transition

摘要： 以钛酸丁酯为前驱物,用溶胶-凝胶法制得了TiO2纳米粒子,并探讨了溶胶-凝胶过程中pH 值及
胶凝方式对TiO2 相变的影响。结果表明,pH 值越小,从锐钛矿到金红石开始相变的温度就越低;采用真空胶凝方
式,明显抑制了TiO2 的相变,而采用红外胶凝方式明显促进TiO2 的相变。

关键词: 溶胶-凝胶 , TiO2 , 相变

ZHANG Jing， ZHANG Dan. lnfluence of pH Value and Route From Sol to Gel on the Phase Transition of TiO2 Prepared by Sol-Gel[J]. Journal of Liaoning Petrochemical University, 2009, 29(1): 45-47.

张静,张丹. pH 值及胶凝方式对Sol-Gel制备TiO2 相变的影响[J]. 辽宁石油化工大学学报, 2009, 29(1): 45-47.

[1]	SHI Cai-jing, LI Zhi-cheng, GAO Wen-yi, ZHANG Xiao-li, REN Li-guo*. Catalytic Synthesis of Biodiesel With NaHSO4·SiO2 [J]. Journal of Liaoning Petrochemical University, 2012, 32(1): 1-4.
[2]	REN Li-guo, ZHANG Xiao-li, GAO Wen-yi. Condensation of Glycerol With Acetone Over the Silica-SupportedPhosphotungstic Acid Catalysts [J]. Journal of Liaoning Petrochemical University, 2011, 31(4): 9-13.
[3]	LI Guo-jun. Synthesis of Benzaldehyde Glycerol Acetals Catalyzed by CuSO_4/SiO₂ [J]. Journal of Liaoning Petrochemical University, 2011, 31(3): 16-19.
[4]	JIANG Xu，GU Yong-he，WANG Hai-yan*，WEI Min，BAI Ying-zhi，MA Jun. The Preparation of Hydrodenitrogenation Activity of the MoP/TiO₂-SiO₂-Al₂O₃ [J]. Journal of Liaoning Petrochemical University, 2010, 30(3): 24-27.
[5]	REN Li-guo, ZHANG Xiao-li, YU Ji-wei. Synthesis of Cyclohexanon 1,2-Propanediol Ketal Over Fe₂(SO₄)₃/SiO₂ Catalyst [J]. Journal of Liaoning Petrochemical University, 2010, 30(1): 37-40.
[6]	REN Li-guo，ZHANG Xiao-li, GAO Wen-yi. Condensation of Benzaldehyde With Glycerol on the Silica-Supported H3PW12O40 Catalysts [J]. Journal of Liaoning Petrochemical University, 2009, 29(3): 8-11.
[7]	ZHANGJing-yu,RENLi-guo. Catalytic Synthesis of Cyclohexanon 1,2-Propanediol Ketal [J]. Journal of Liaoning Petrochemical University, 2009, 29(2): 8-10.
[8]	ZHANG Jing. Effect of Precursor and Solvent on the Phase Transition of Nano-TiO2 Prepared With Sol-Gel [J]. Journal of Liaoning Petrochemical University, 2009, 29(2): 22-23.
[9]	GAO Wen-yi， ZHANG Xiao-li, REN Li-guo. Catalytic Synthesis of Cyclohexanon Ethylene Ketal  With CuSO₄/SiO₂ Solid Acid [J]. Journal of Liaoning Petrochemical University, 2008, 28(2): 11-14.
[10]	QIU Guo -min,WANG Xing -li,ZHANG Ke -zheng. Factors of Silicon Dioxide Inorganic Membrane Prepared by Sol -Gel Method [J]. Journal of Liaoning Petrochemical University, 2006, 26(2): 19-22.

lnfluence of pH Value and Route From Sol to Gel on the Phase Transition of TiO2 Prepared by Sol-Gel

pH 值及胶凝方式对Sol-Gel制备TiO2 相变的影响

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 10

Recommended Articles

Metrics