A review on degradation of organic dyes by using metal oxide semiconductors

被引：79

作者：

Yadav, Sapna ^{[1
]}

Shakya, Kriti ^{[1
]}

Gupta, Aarushi ^{[1
]}

Singh, Divya ^{[1
]}

Chandran, Anjana R. ^{[1
]}

Varayil Aanappalli, Anjali ^{[1
]}

Goyal, Kanika ^{[1
]}

Rani, Nutan ^{[1
]}

Saini, Kalawati ^{[1
]}

机构：

[1] Univ Delhi, Dept Chem, Miranda House, New Delhi 110007, India

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2023年 / 30卷 / 28期

关键词：

Metal oxides; Semiconductor; Nanoparticles; Pollutants; Photocatalyst; Adsorption; Dyes; PHOTOCATALYTIC DEGRADATION; METHYLENE-BLUE; GRAPHENE OXIDE; SOL-GEL; CATALYST PREPARATION; TIO2; PHOTOCATALYSIS; HYDROGEN-PRODUCTION; OPTICAL-PROPERTIES; AQUEOUS-SOLUTIONS; DOPED TIO2;

D O I：

10.1007/s11356-022-20818-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The discharge of organic dye pollutants in natural water bodies has put forward a big challenge of providing clean water to a large part of the population. As the population is increasing with time, only underground water is not sufficient to complete the water requirements of everyone everywhere. Purification of wastewater and its reuse is the only way to fulfill the water needs. Nanotechnology has been used very efficiently for wastewater treatment via photocatalytic degradation of dye molecules. In the past few years, a lot of investigations have been done to enhance the photocatalytic activity of metal oxide semiconductors for water purification. In this review, we have discussed the different methods of synthesis of various metal oxide semiconductor nanoparticles, energy band gap, their role as efficient photocatalysts, radiations used for photocatalytic reactions, and their degradation efficiency to degrade the dye pollutants. We have also discussed the nanocomposites of metal oxide with graphene. These nanocomposites have been utilized as the efficient photocatalyst due to unique characteristics of graphene such as extended range of light absorption, separation of charges, and high capacity of adsorption of the dye pollutants.

引用

页码：71912 / 71932

页数：21

共 123 条

[1]

Adekunle Abolanle S., 2020, Nano-Structures & Nano-Objects, V21, P67, DOI 10.1016/j.nanoso.2019.100405

[2] Reduced graphene oxide decorated with Co3O4 nanoparticles (rGO-Co3O4) nanocomposite: A reusable catalyst for highly efficient reduction of 4-nitrophenol, and Cr(VI) and dye removal from aqueous solutions [J].