Ultrasound-promoted hydrothermal design of Ag-AgVO3/CeO2 nanobelt/nanosphere heterostructure for highly efficacious sunlight induced treatment of dye effluent

被引：10

作者：

Chapari, Fatemeh ^{[1
,2
]}

Haghighi, Mohammad ^{[1
,2
]}

Fatehifar, Esmaeil ^{[1
,2
]}

Shabani, Maryam ^{[1
,2
]}

Mikaeeli, Nazanin ^{[1
,2
]}

机构：

[1] Sahand Univ Technol, Chem Engn Fac, POB 513351996, Tabriz, Iran

[2] Sahand Univ Technol, Reactor & Catalysis Res Ctr RCRC, Box 513351996, Tabriz, Iran

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2022年 / 116卷

基金：

美国国家科学基金会;

关键词：

Ag-Decorated AgVO3/CeO2; Nanoheterojunction Photocatalyst; Ultrasound-Promoted Hydrothermal; Hetero-photocatalytic Degradation; Dye Solution Treatment; ENHANCED PHOTOCATALYTIC ACTIVITY; CRYSTAL VIOLET DYE; DEGRADATION; TIO2; CONSTRUCTION; REMOVAL; HETEROJUNCTION; NANOPARTICLES; TETRACYCLINE; DISPERSION;

D O I：

10.1016/j.jiec.2022.08.031

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In present study, the novel 1D nanobelt-on-0D nanosphere heterostructured Ag-decorated AgVO3/CeO2 photocatalysts as pseudo-type II interface were successfully synthesized at 1:3, 1:1 and 3:1 mass ratios of AgVO3:CeO2 through the ultrasound-promoted hydrothermal design and their photocatalytic performance has been investigated in the degradation of crystal violet (CV) under simulated solar light. Several analyses such as XRD, TPR, FESEM, BET-BJH, UV-vis DRS and PL were applied. The highest photocatalytic activity with 92.4% removal and 0.0238 min(-1) constant rate for CV after 120 min irradiation was obtained over Ag-AgVO3/CeO2 (1:1)-SH. It could be devoted to form a heterostructure between CeO2 nanosphere particles anchored with AgVO3 nanobelts, confirming by DRS results (two band gaps: 2.39 and 2.87 eV); the interaction between phases and well dispersion of CeO2 nanoparticles, proving via TPR analysis; well light harvesting, extending visible light absorption and surface plasmon resonance feature; reducing charge carriers recombination via forming the pseudo-type II. Besides, positive effect of the ultrasound energy was proved. So that, in the sample synthesized without sonication, the final efficiency (78.2%) and initial constant rate (0.0121 min(-1)) decreased substantially. Moreover, scavenger tests indicated in order the prominent role of holes, center dot O-2(-) and center dot OH radicals as active species. (C) 2022 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：142 / 158

页数：17

共 70 条

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