Synthesis of superparamagnetic and whole visible light-photocatalytic Ni0.5Zn0.5Fe2O4-core/Ag2O-capped TiO2-shell nanospheres

被引：0
|
作者：
Karunakaran, Chockalingam [1 ]
Singh, I. Jeba [1 ]
Vinayagamoorthy, Pazhamalai [1 ]
机构：
[1] Annamalai Univ, Dept Chem, Annamalainagar 608002, Tamil Nadu, India
来源：
JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2023年 / 60卷 / 02期
关键词：
Core/shell; Semiconductor; Superparamagnetism; Photosensitization; AG2O/TIO2; HETEROSTRUCTURE; NANOBELTS;
D O I：
10.1007/s43207-022-00262-5
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Cubic Ag2O-deposited anatase TiO2 nanospheres with cubic Ni0.5Zn0.5Fe2O4-core have been obtained by a 2-stage synthesis. They have been characterized by energy-dispersive X-ray spectroscopy, high-resolution scanning and transmission electron microscopies, X-ray and selected area electron diffractometries, vibrating sample magnetometry, nitrogen adsorption and desorption, and UV-visible diffuse reflectance and photoluminescence spectroscopies. The synthesized samples are superparamagnetic and absorb UV-A light and visible light in the entire wavelength range. Structure directing agent polyvinylpyrrolidone provides little influence on the Ag2O-capping process. The synthesized Ni0.5Zn0.5Fe2O4 -core/Ag2O-capped TiO2-shell nanospheres are whole visible light-active magnetically recoverable photocatalyst; capped Ag2O sensitizes anatase TiO2 under whole visible light and the ferrite core buried in TiO2 lattice enables magnetic recovery of the photocatalytic nanospheres. [GRAPHICS] .
引用
收藏
页码：283 / 292
页数：10
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