Magnetically recyclable ZnCo2O4/Co3O4 nanophotocatalyst: Green combustion preparation, characterization and its application for enhanced degradation of contaminated water under sunlight

被引：61
作者：
Heidari-Asil, Seyed Ali [1 ]
Zinatloo-Ajabshir, Sahar [2 ]
Alshamsi, Hassan Abbas [3 ]
Al-Nayili, Abbas [3 ]
Yousif, Qahtan A. [4 ]
Salavati-Niasari, Masoud [1 ]
机构：
[1] Univ Kashan, Inst Nano Sci & Nano Technol, POB 87317-51167, Kashan, Iran
[2] Univ Bonab, Dept Chem Engn, POB 5551761167, Bonab, Iran
[3] Univ Al Qadisiyah, Coll Educ, Dept Chem, Diwaniya, Iraq
[4] Univ Al Qadisiyah, Coll Engn, Dept Mat, Diwaniyah, Iraq
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 38期
基金：
美国国家科学基金会;
关键词：
Nanostructures; Magnetic property; Zinc cobaltite; Photocatalyst; Stevia extract; Sol-gel; PHOTOCATALYTIC DEGRADATION; VISIBLE-LIGHT; NANOPARTICLES; NANOSTRUCTURES; HETEROJUNCTION; FABRICATION; REMOVAL; DYE; NANOCOMPOSITES; PHENOL;
D O I：
10.1016/j.ijhydene.2022.03.157
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Finding the appropriate photocatalyst for elimination of organic contaminants is a challenge for remediation of environment. Herein, we tried to synthesis of ZnCo2O4/Co3O4 nanocomposite using the Stevia extract as a natural reagent that can act as green fuel in auto-combustion sol-gel method and control the size of product by steric-hindrance induced by its structure. The chelating role of this natural reagent was investigated by changing the amount of this extract for synthesis of different samples. Analyses confirmed the effect of this parameter on morphology and size of products. The photocatalytic activities of different samples under visible irradiation were investigated and the effect of size of photocatalyst on degradation percent of dye was studied. The good performance of ZnCo2O4/Co3O4 nanocomposite was detected by degradation of Acid violet 7 about 93.5% in 70 min and 2-phenol about 100% in 18 min. Photocatalyst was easily recycled through magnetic properties of products and stability of it under irradiation was confirmed by degradation of dye after 10 times recycling. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：16852 / 16861
页数：10
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