Synthesis, physicochemical and photocatalytic activities of nano ZnCo2O4 catalyst for photodegradation of various dyes under sunlight irradiation

被引:10
|
作者
Hemamalini, S. [1 ]
Manimekalai, R. [1 ]
机构
[1] Kongunadu Arts & Sci Coll, Dept Chem, Coimbatore 641029, Tamil Nadu, India
关键词
Transition metal; co-precipitation; ferromagnetic; photocatalytic activity; OPTICAL-PROPERTIES; FERRITES PREPARATION; HYDRAZINE METHOD; WASTE-WATER; AZO DYES; DEGRADATION; TIO2; NANOPARTICLES; CO3O4; SPINEL;
D O I
10.1007/s12034-021-02453-y
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The transition metal (Zn2+)-doped Co3O4 nanoparticle was tailored through thermal decomposition of precursor synthesized by simple co-precipitation which is an experimentally and economically comfortable method. The precursor was characterized using EDS, FTIR and thermogravimetric analysis. Also, the nano-sized metal oxide synthesized from its precursor was investigated by powder X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy, scanning electron microscopy. The specific surface area was scrutinized through Bruner-Emmet-Teller (BET) adsorption. The ferromagnetic property of the nanoparticle was detected using vibrating sample magnetometer. The photocatalytic degradation performance of nano ZnCo2O4 was evaluated using methyl orange (MO), rhodamine B (RhB) and Congo red (CR) dyes under sunlight. The nanoparticle demonstrated good photocatalytic activity towards azo dyes (MO and CR) rather than rhodamine (RhB)-based dye. The degradation of organic dyes was found to follow first-order kinetics.
引用
收藏
页数:10
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