Adsorption and Photocatalytic Processes of Mesoporous SiO2-Coated Monoclinic BiVO4

Duangdao Channei; Duangdao Channei; Auppatham Nakaruk; Auppatham Nakaruk; Wilawan Khanitchaidecha; Wilawan Khanitchaidecha; Panatda Jannoey; Sukon Phanichphant

doi:10.3389/fchem.2018.00415

Frontiers in Chemistry (Sep 2018)

Adsorption and Photocatalytic Processes of Mesoporous SiO2-Coated Monoclinic BiVO4

Duangdao Channei,
Duangdao Channei,
Auppatham Nakaruk,
Auppatham Nakaruk,
Wilawan Khanitchaidecha,
Wilawan Khanitchaidecha,
Panatda Jannoey,
Sukon Phanichphant

Affiliations

Duangdao Channei: Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok, Thailand
Duangdao Channei: Research Center for Academic Excellence in Petroleum, Petrochemicals and Advanced Materials, Naresuan University, Phitsanulok, Thailand
Auppatham Nakaruk: Department of Industrial Engineering, Faculty of Engineering, Naresuan University, Phitsanulok, Thailand
Auppatham Nakaruk: Centre of Excellence for Innovation and Technology for Water Treatment, Naresuan University, Phitsanulok, Thailand
Wilawan Khanitchaidecha: Centre of Excellence for Innovation and Technology for Water Treatment, Naresuan University, Phitsanulok, Thailand
Wilawan Khanitchaidecha: Department of Civil Engineering, Faculty of Engineering, Naresuan University, Phitsanulok, Thailand
Panatda Jannoey: Department of Biochemistry, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
Sukon Phanichphant: Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand

DOI: https://doi.org/10.3389/fchem.2018.00415
Journal volume & issue: Vol. 6

Abstract

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The silicon dioxide (SiO2)–coated bismuth vanadate (BiVO4) composites as visible–driven–photocatalysts were successfully synthesized by the co–precipitation method. The effects of SiO2 coating on the structure, optical property, morphology and surface properties of the composites were investigated by X–ray diffraction (XRD), UV–visible diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM) and Brunauer–Emmette–Teller (BET) measurements. The photocatalytic activity of monoclinic BiVO4 and BiVO4/SiO2 composites were evaluated according to the degradation of methylene blue (MB) dye aqueous solution under visible light irradiation. The SiO2−coated BiVO4 composites showed the enhancing photocatalytic activity approximately threefold in comparison with the single phase BiVO4.

Published in Frontiers in Chemistry

ISSN: 2296-2646 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: http://journal.frontiersin.org/journal/chemistry

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