Synthesis and characterization of Ag-AgVO3/Cu2O heterostructure with improved visible-light photocatalytic performance

被引：7
作者：
Alorabi, Ali Q. [1 ]
Hassan, M. Shamshi [1 ]
Algethami, Jari S. [2 ]
Baghdadi, Neazar Essam [3 ]
机构：
[1] Albaha Univ, Chem Dept, Fac Sci, POB 1988, Albaha, Saudi Arabia
[2] Najran Univ, Fac Sci & Arts Sharurah, Chem Dept, Empty Quarter Res Unit, Najran, Sharurah, Saudi Arabia
[3] King Abdulaziz Univ, Ctr Nanotechnol, Jeddah, Saudi Arabia
来源：
SCIENCE PROGRESS | 2021年 / 104卷 / 04期
关键词：
Ag-AgVO3; cu(2)O; photocatalyst; heterostructure; methylene blue; photo-degradation; ENHANCED PERFORMANCE; METHYLENE-BLUE; COMPOSITE; DEGRADATION; GRAPHENE; NANOCOMPOSITE; NITROGEN; AOPS;
D O I：
10.1177/00368504211050300
中图分类号：
G40 [教育学];
学科分类号：
040101 ; 120403 ;
摘要：
Heterostructure Ag-AgVO3/Cu2O photocatalyst was prepared by the hydrothermal procedure. The prepared photocatalysts were characterized by different physico-chemical techniques. For Ag-AgVO3/Cu2O composites, AgVO3 shows the monoclinic phase whereas Ag and Cu2O show a cubic phase. SEM images of Ag-AgVO3/Cu2O composites illustrated that the surface of AgVO3 nanorods was covered by Ag and Cu2O nanoparticles. Ultra violet - visible diffuse reflectance spectra revealed that the calculated optical response of Ag-AgVO3/Cu2O composite was found to be 2.24 eV. Additionally, the composite catalyst demonstrated improved photo-efficiency for the decolorization of methylene blue dye compared to that of pristine AgVO3. The better performance of the composite sample can be ascribed to its high charge separation and inhibition in recombination of charges in Ag-AgVO3/Cu2O catalyst Finally, this heterostructure Ag-AgVO3/Cu2O catalyst demonstrated good stability which simply can be recycled a number of times with steadiness; thus, unwraps new possibilities for applications as innovative photocatalyst
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页数：13
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