Degradation of Rhodamine dyes by Advanced Oxidation Processes (AOPs) – Focus on cavitation and photocatalysis - A critical review

Ashish V. Mohod; Malwina Momotko; Noor Samad Shah; Mateusz Marchel; Mohammad Imran; Lingshuai Kong; Grzegorz Boczkaj

Water Resources and Industry (Dec 2023)

Degradation of Rhodamine dyes by Advanced Oxidation Processes (AOPs) – Focus on cavitation and photocatalysis - A critical review

Ashish V. Mohod,
Malwina Momotko,
Noor Samad Shah,
Mateusz Marchel,
Mohammad Imran,
Lingshuai Kong,
Grzegorz Boczkaj

Affiliations

Ashish V. Mohod: Department of Chemical Engineering, AISSMS College of Engineering, Kennedy Road, Pune, 411001, India; Chemical Engineering Departament, Universidade de São Paulo, São Paulo, Brazil
Malwina Momotko: Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, St.11/12, 80-233, Poland
Noor Samad Shah: Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100, Pakistan
Mateusz Marchel: Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, St.11/12, 80-233, Poland
Mohammad Imran: Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab Lahore, 54000, Pakistan
Lingshuai Kong: Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
Grzegorz Boczkaj: Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, St.11/12, 80-233, Poland; Eko Tech Center, Gdansk University of Technology, Gdansk, St.11/12, 80-233, Poland; Corresponding author. Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, 80 – 233, Gdansk, G. Narutowicza St. 11/12, Poland.

Journal volume & issue: Vol. 30
p. 100220

Abstract

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This review evaluates selected advanced oxidation processes (AOPs) - cavitation and photocatalysis - successfully used for wastewater treatment towards degradation of Rhodamine (Rh) dyes. Reactor configuration and impact of process parameters and oxidants addition (hydrogen peroxide, ozone, persulfates) on degradation effectiveness along with degradation mechanisms are discussed. Best technologies provide 100% degradation within 10–30 min. Rhodamine B is effectively degraded in highly acidic conditions (pH 2), while Rhodamine 6G requires basic conditions (pH 10). The most effective oxidants were hydrogen peroxide and ozone. Ecological Structure Activity Relationships (ECOSAR) revealed acute toxicities of the intermediates and by-products of the Rh dye.

Published in Water Resources and Industry

ISSN: 2212-3717 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Social Sciences: Industries. Land use. Labor: Management. Industrial management
Website: http://www.journals.elsevier.com/water-resources-and-industry/

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