Tuning the bandgap of m-ZrO2 by incorporation of copper nanoparticles into visible region for the treatment of organic pollutants

被引：45

作者：

Singh, Harish ^{[1
]}

Sunaina ^{[1
]}

Yadav, Krishna Kumar ^{[1
]}

Bajpai, Vaibhav Kumar ^{[1
]}

Jha, Menaka ^{[1
]}

机构：

[1] Inst Nano Sci & Technol, Mohali 160062, India

来源：

MATERIALS RESEARCH BULLETIN | 2020年 / 123卷

关键词：

m-ZrO2; Cu-ZrO2; Photocatalysis; Nanocomposites; ONE-POT SYNTHESIS; ZRO2; NANOPARTICLES; CATALYSTS; SURFACE; WATER; PHOTOCATALYSIS; ADSORPTION; GRAPHENE; PHASE; TIO2;

D O I：

10.1016/j.materresbull.2019.110698

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study, a low-temperature process for the stabilization of Cu-ZrO2 nanocomposite has been designed. The synthesis of m-ZrO2 has been done via hydrothermal route followed by decoration of copper onto mZrO(2) surface by chemical reduction of copper salt in ethylene glycol. The optical study of the Cu-ZrO2 nanocomposites shows that, as the concentration of copper increases, the bandgap of the nanocomposite decreases. Among the series of synthesized nanocomposites of Cu-ZrO2, the nanocomposite having 1:4 molar ratio of Cu: ZrO2 shows the excellent photo-degradation efficacy (degradation efficiency similar to 94 %) in the visible light because of efficient charge separation as confirmed by spectroscopic techniques as well as kelvin probe force microscopic studies.

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页数：10

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