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Evaluation of Microcystin-Lr Photocatalytic Degradation in Aqueous Solutions by Bivo4/Nay-Zeolite Nanocomposite: Determination of Optimum Conditions by Response Surface Methodology (Rsm) Publisher



Jafari N1, 2 ; Abdolahnejad A3 ; Behnami A3 ; Mohammadi A3 ; Fanaei F4 ; Ebrahimi A1, 2
Authors
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Authors Affiliations
  1. 1. Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Environmental Health Engineering, Maragheh University of Medical Sciences, Maragheh, Iran
  4. 4. Department of Environmental Health Engineering, Iran University of Medical Sciences, Tehran, Iran

Source: Toxin Reviews Published:2022


Abstract

Microcystin leucine-arginine (MC-LR), is a hepatotoxic agent produced by cyanobacteria, capable of posing a serious threat to the human and ecological environment. In this study, bismuth vanadate (BiVO4)/NaY-Zeolite nanocomposite was intended for degradation of MC-LR in aquatic solutions. The response surface methodology (RSM) was used to optimize the operating variables affecting MC-LR removal. The results showed that the maximum removal efficiency (RE) of MC-LR was 96.26%, which achieved in the optimal conditions of pH = 7, contact time of 135 min, and catalyst dose of 0.75 g/L. The findings of this study indicate that BiVO4/NaY-Zeolite could be a promising catalyst for MC-LR degradation. © 2021 Informa UK Limited, trading as Taylor & Francis Group.
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