Synthesis of BiVO4 photocatalyst via cyclic microwave irradiation method

Chiangraeng, Natthiti, Chachvalvutikul, Auttaphon, Choklap, Wimonnat, Kaowphong, Sulawan and Nimmanpipug, Piyarat 2019. Synthesis of BiVO4 photocatalyst via cyclic microwave irradiation method. Presented at: 5th Southeast Asia Conference of Thermoelectrics (SACT 2018), Siem Reap, Cambodia, 14-17 December 2018. Ferroelectrics. , vol.552 (1) Taylor & Francis: STM, Behavioural Science and Public Health Titles, pp. 42-52. 10.1080/00150193.2019.1653081

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Abstract

Visible light-active BiVO4 photocatalyst was successfully synthesized through a cyclic microwave irradiation method without further calcination process. The synthesized powder was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS). The BiVO4 powder revealed an excellent photocatalytic degradation of methylene blue under visible light irradiation. The degraded methylene blue was monitored by both UV-Vis spectrophotometer and absorbance in RGB channels. Similar decolorization percentage as well as pseudo first-order rate constant were achieved with high accuracy and sensitivity. The light absorption in RGB channels is an alternative simple and cartable way requiring lower amount of sample for detecting the dye degradation photocatalytic activity.

Item Type:	Conference or Workshop Item (Poster)
Date Type:	Published Online
Status:	Published
Schools:	Chemistry
Publisher:	Taylor & Francis: STM, Behavioural Science and Public Health Titles
ISSN:	0015-0193
Date of Acceptance:	21 July 2019
Last Modified:	21 May 2021 15:15
URI:	https://orca.cardiff.ac.uk/id/eprint/141349

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