Enhanced photocatalytic decolorization of Congo red dye with surface-modified zinc oxide using copper(II)-amino acid complex

被引：12

作者：

Supriya, S. ^{[1
]}

Sathish, S. ^{[2
]}

机构：

[1] Sathyabama Inst Sci & Technol, Dept Chem, Chennai 600119, Tamil Nadu, India

[2] Sathyabama Inst Sci & Technol, Dept Chem Engn, Chennai, Tamil Nadu, India

来源：

INORGANIC AND NANO-METAL CHEMISTRY | 2020年 / 50卷 / 03期

关键词：

Congo red dye; copper-amino acid complex; nanosized ZnO; photodecolorization; surface modification; TITANIUM-DIOXIDE; DEGRADATION; NANOPARTICLES; PROPERTY; PROGRESS;

D O I：

10.1080/24701556.2019.1661442

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Photocatalytic decolorization of Congo red dye has been investigated using surface-modified ZnO nanoparticles by adsorbing copper(glycinato) complex on the surface of nanosized ZnO. The complex-adsorbed photocatalyst is shown to exhibit enhanced photodecolorization of the dye compared to the pure ZnO nanoparticles. Effect of catalyst dose, initial dye concentration, and role of H2O2 as oxidizing agent has been studied in order to optimize the condition for efficient decolorization. The nanosized ZnO was prepared by precipitation method onto which the amino acid complex was adsorbed. The synthesized catalysts were characterized by XRD, UV, FTIR, SEM, and EDAX. Comparative evaluation of photodecolorization of the dye was investigated for both the nanosized ZnO and the complex-adsorbed ZnO nanoparticles under optimized conditions.

引用

页码：100 / 109

页数：10

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