Photocatalytic Removal of the Endocrine Disruptor Chlorpyrifos using a ZnO.MoO3 Composite Supported on Al2O3

被引:0
作者
Attaria, Fatima [1 ]
Tariq, Saadia Rashid [1 ]
Chotana, Ghayoor Abbas [2 ]
Ahmed, Dildar [3 ]
机构
[1] Lahore Coll Women Univ, Dept Chem, Jail Rd, Lahore 54000, Pakistan
[2] Lahore Univ Management Sci LUMS, Syed Babar Ali Sch Sci & Engn SBASSE, Dept Chem & Chem Engn, Lahore 54792, Pakistan
[3] Forman Christian Coll, Dept Chem, Lahore 54000, Pakistan
来源
CHEMISTRYSELECT | 2024年 / 9卷 / 23期
关键词
Chlorpyrifos; Endocrine disruptor; photo-degradation; water remediation ZnO.MoO3/Al2O3; VISIBLE-LIGHT; ORGANOPHOSPHORUS PESTICIDES; HYDROTHERMAL SYNTHESIS; DEGRADATION; DYE; PHOTODEGRADATION; HETEROSTRUCTURE; ADSORPTION; TIO2; MOO3;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Chlorpyrifos is an endocrine disruptor pesticide that induces breast cancer cell proliferation through Estrogen receptor alpha pathway in humans. It also has toxic effects on some beneficial insects like bees, wasps, and arthropods, even low levels of CP can kill fish in water. Thus, it is important to efficiently remove this compound from wastewaters to get rid of its hazardous effects. Al2O3 supported ZnO.MoO3 composite was prepared as an efficient material for photo-degradation of chlorpyrifos under UV irradiation and characterized by SEM-EDX, XRD and TG techniques. The XRD analysis showed the orthorhombic structures with band gap of 2.86 eV for ZnO.MoO3/Al2O3 which was 2.96 eV for MoO3/Al2O3. The kinetics of degradation depicted that ZnO.MoO3/Al2O3 afforded a complete degradation of chlorpyrifos with half life of only 3 minutes which otherwise was 24 minutes in the presence of MoO3/Al2O3. The complete mineralization of chlorpyrifos was confirmed by GC/MS analysis, where no peaks of intermediates were recorded. The prepared material also exhibited good recyclability without any leaching of Zn and Mo metals. Thus, ZnO.MoO3/Al2O3 is an efficient and cost effective material for removal of chlorpyrifos. Its potential may also be explored for the removal of other hazardous organic pollutants.
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页数:14
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