Mechanism Study on the Formation of Core-Shell TiO2-ATO

被引：2
|
作者：
Wang, Kejun [1 ]
Peng, Guanghuai [1 ]
Hu, Shanling [1 ]
机构：
[1] Gannan Normal Univ, Coll Chem & Life Sci, Ganzhou 34100, Jiangxi, Peoples R China
来源：
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 2009年 / 223卷 / 08期
基金：
中国国家自然科学基金;
关键词：
ATO-TiO2; Core-Shell; Mechanism; pH; CORE/SHELL NANOPARTICLES;
D O I：
10.1524/zpch.2009.5489
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Mechanism for the formation of core-shell ATO-TiO2 was investigated. Zeta potential, XRD, TEM, XPS and LCR digital bridge were employed to characterize the morphology, phase structure, Surface composition and conductivity of samples. Results indicated that the formation of ATO-TiO2 is through a synergistic effect between dispersive force and electrostatic repulsion, and this synergistic effect reaches the optimum Status at pH = 2. Results obtained from theoretic calculation Suggested that the ATO surrounded on TiO2 is in particle form, and the formation mechanism Could be depicted by an "islands-on-sphere" model.
引用
收藏
页码：895 / 903
页数：9
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