Visible light sensitive BiVO4-TiO2 nanocomposites for photocatalytic dye degradation

被引：1
作者：
Veetil, Salija Padinjare [1 ,2 ]
Edam, Jayendu Koodali [2 ]
Puthiyadath, Anusree Thavarool [1 ]
Veedu, Sujith Kizhakke [3 ]
Vijayan, Baiju Kizhakkekilikoodayil [1 ,2 ]
机构：
[1] Kannur Univ, Dept Chem Nanosci, Swami Ananda Theertha Campus, Payyannur 670327, India
[2] SES Coll Sreekandapuram, Dept Chem, Kannur 670631, Kerala, India
[3] Payyannur Coll, Edat, Dept Chem, Payyanur 670327, Kerala, India
来源：
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 2024年
关键词：
bismuth vanadate nanosheet; titania nanosheet; hydrothermal; photocatalysis; composites;
D O I：
10.1515/zpch-2024-0794
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：
The hydrothermal approach was used to prepare visible light active BiVO4-TiO2 nanosheet composites in varying molar ratios. The photoluminescence (PL) spectrum, X-ray photoelectron spectroscopy (XPS), UV-Visible Diffuse Reflectance Spectroscopy (DRS), Transmission electroscopy (TEM), Brunauer-Emmett-Teller (BET) and field emission scanning electron microscopy (FESEM), were used to analyze the photocatalysts and composites. Photocatalytic activity of BiVO4-TiO2 composites was investigated by decolorizing methylene blue. Out of four different molar ratio BiVO4-TiO2 composites with a molar ratio of 3:1 BiVO4 TiO2 composite showed enhanced photocatalytic activity which is further proved by photoluminescence investigation of coumarin and Scavenger test. The DRS of BiVO4 TiO2 composite showed red shift in optical absorption. The enhanced photocatalytic activity is due to minimizing electron hole recombination by making composite with TiO2.
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页数：18
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