Polycrystalline BiVO4 visible-light photocatalytic activity: Rietveld refinement, microstructural, vibrational, and photocatalytic properties

被引：0

作者：

Lotfi, Safia ^{[1
]}

El Ouardi, Mohamed ^{[1
,2
]}

Arab, Madjid ^{[2
]}

Assani, Abderrazzak ^{[1
]}

BaQais, Amal ^{[3
]}

Haspel, Henrik ^{[4
,5
]}

Konya, Zoltan ^{[4
,5
]}

Ait Ahsaine, Hassan ^{[1
]}

机构：

[1] Mohammed V Univ Rabat, Fac Sci, Ctr Sci Mat, Lab Chim Appl Mat, BP 1014 RP, Rabat, Morocco

[2] Univ Toulon & Var, AMU, CNRS, IM2NP, CS 60584, Toulon, France

[3] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Chem, POB 84428, Riyadh 11671, Saudi Arabia

[4] HUN REN SZTE React Kinet & Surface Chem Res Grp, Rerrich Bela Ter 1, H-6720 Szeged, Hungary

[5] Univ Szeged, Dept Appl & Environm Chem, Rerrich Bela Ter 1, H-6720 Szeged, Hungary

来源：

OXFORD OPEN MATERIALS SCIENCE | 2025年 / 5卷 / 01期

关键词：

bismuth vanadate; photocatalysis; visible-light; dye degradation; active species; photocatalytic activity; ENVIRONMENTAL APPLICATIONS; EFFICIENT DEGRADATION; MESOPOROUS TIO2; METHYLENE-BLUE; SURFACE-AREA; RHODAMINE-B; WASTE-WATER; PERFORMANCE; TEMPERATURE; NANOPARTICLES;

D O I：

10.1093/oxfmat/itaf005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, we have successfully synthesized BiVO4 photocatalysts via a simple chemical precipitation method followed by heat treatment at 400 degrees C, 500 degrees C, and 600 degrees C. The samples were characterized by XRD combined with Rietveld refinement, Raman spectroscopy, SEM, and UV- vis DRS. XRD results showed that we obtained monoclinic scheelite phase (m-s BiVO4) with I112/b space group. The visible-light photocatalytic activities of BiVO4 -400 degrees C, 500 degrees C, and 600 degrees C for organic dye degradation (MB: methylene blue; MO: and methyl orange) were investigated, and the BiVO4 400 degrees C showed the highest activity in the photodegradation of MB (95%) and MO (80%) after 150 min of visible illumination. The photocatalytic degradation mechanism was proposed based on radical trapping measurements and Mott-Schottky analysis.

引用

页数：13

共 107 条

[71] Niobium Doping in BiVO4: Interplay Between Effective Mass, Stability, and Pressure [J].