Photocatalytic degradation of methyl orange from wastewater using a newly developed Fe-Cu-Zn-ZSM-5 catalyst

Photo-Fenton oxidation is one of the most promising processes to remove recalcitrant contaminants from industrial wastewater. In this study, we developed a novel heterogeneous catalyst to enhance photo-Fenton oxidation. Multi-composition (Fe-Cu-Zn) on aluminosilicate zeolite (ZSM-5) was prepared usi...

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Bibliographic Details
Published in:Environmental science and pollution research international 2020-07, Vol.27 (21), p.26239-26248
Main Authors: Ahmad, Mushtaq, Aziz, Abdul Raman Abdul, Mazari, Shaukat Ali, Baloch, Abdul Ghaffar, Nizamuddin, Sabzoi
Format: Article
Language:English
Subjects:
Aluminosilicates
Aluminum silicates
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Azo Compounds
Azo dyes
Carbon content
Catalysis
Catalysts
Chemical synthesis
Color removal
Contaminants
Copper
Dyes
Earth and Environmental Science
Ecotoxicology
Electron microscopes
Environment
Environmental Chemistry
Environmental Health
Environmental science
Field emission microscopy
Industrial pollution
Industrial wastes
Industrial wastewater
Iron
Oxidation
Photodegradation
Research Article
Scanning electron microscopy
Spectroscopy
Taguchi methods
Transmission electron microscopy
Waste Water
Waste Water Technology
Wastewater
Water Management
Water Pollution Control
X-ray diffraction
Zeolites
Zinc
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Summary:Photo-Fenton oxidation is one of the most promising processes to remove recalcitrant contaminants from industrial wastewater. In this study, we developed a novel heterogeneous catalyst to enhance photo-Fenton oxidation. Multi-composition (Fe-Cu-Zn) on aluminosilicate zeolite (ZSM-5) was prepared using a chemical process. Subsequently, the synthesized catalyst was characterized by using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray (spectroscopy) (EDX), and Brunauer–Emmett–Teller (BET). Activity of the synthesized catalyst is analysed to degrade an azo dye, methyl orange. Taguchi method is used to optimize color removal and total carbon content (TOC) removal. The dye completely degraded, and 76% of TOC removal was obtained at optimized process conditions. The amount of catalyst required for the desired degradation of dye significantly reduced up to 92% and 30% compared to conventional homogenous and heterogeneous Fenton oxidation processes, respectively.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-020-08940-9