Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Photocatalytic degradation of microcystin-LR using BiVO4 photocatalysts under visible light irradiation: modelling by response surface methodology (RSM)

Sat Dec 10 02:49:55 2022

(2020) Photocatalytic degradation of microcystin-LR using BiVO4 photocatalysts under visible light irradiation: modelling by response surface methodology (RSM). International Journal of Environmental Analytical Chemistry. ISSN 03067319 (ISSN)

Full text not available from this repository.

Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

The microcystin-LR (MC-LR) is a potentially dangerous toxin for animals and human health. So, MC-LR removal from the environment by the use of photocatalysts is recommended. Generally, traditional photocatalysts are dependent on UV light and consume high energy and also produce high heat. So, the use of photocatalysts with low-energy consumption, feasible, and reliable properties that activate in the visible light is very important. The aim of the present study was the removal of microcystin-LR (MC-LR) in visible light by synthesised bismuth vanadate (BiVO4) with the hydrothermal method. The BiVO4 characteristics were determined by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FT-IR) spectra. The Response Surface Methodology (RSM) was used to survey the effects of operating variables such as pH, contact time, and catalyst dose on MC-LR removal. The results showed that the increase of contact time and catalyst dose had a positive effect on enhancing the removal efficiency of MC-LR, but the effect of pH was negative. The maximum removal efficiency of MC-LR at pH = 5, contact time = 180 minutes and catalyst dose = 0.5 g/l was equal to 93.19. Therefore, BiVO4 as an innovative photocatalyst had a suitable effect on the MC-LR degradation under visible light. © 2020 Informa UK Limited, trading as Taylor & Francis Group.

Item Type: Article
Creators:
CreatorsEmail
Ebrahimi, A.UNSPECIFIED
Ebrahim, K.UNSPECIFIED
Abdolahnejad, A.UNSPECIFIED
Jafari, N.UNSPECIFIED
Karimi, M.UNSPECIFIED
Mohammadi, A.UNSPECIFIED
Nikoonahad, A.UNSPECIFIED
Keywords: BiVO4 drinking water Microcystin-LR photocatalytic degradation visible light Bismuth compounds Catalysts Energy utilization Field emission microscopes Fourier transform infrared spectroscopy pH effects Photocatalytic activity Photodegradation Scanning electron microscopy Surface properties Uranium metallography Field emission scanning electron microscopy Fourier transform infra red (FTIR) spectroscopy Hydrothermal methods Low energy consumption Photo catalytic degradation Removal efficiencies Response surface methodology Visible-light irradiation Light
Divisions:
Journal or Publication Title: International Journal of Environmental Analytical Chemistry
Journal Index: Scopus
Identification Number: https://doi.org/10.1080/03067319.2020.1820498
ISSN: 03067319 (ISSN)
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/3162

Actions (login required)

View Item View Item