Sonochemical synthesis of mesoporous ZrFe2O5 and its application for degradation of recalcitrant pollutants

RSC Advances ◽  
2015 ◽  
Vol 5 (66) ◽  
pp. 53529-53542 ◽  
Author(s):  
Sankar Chakma ◽  
Vijayanand S. Moholkar
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Textile Dyes ◽  
Synthesis And Characterization ◽  
Sonochemical Synthesis ◽  
Oxidation Processes

In this paper, we have reported the sonochemical synthesis and characterization of zirconium ferrite (ZrFe2O5), and its use as a catalyst in advanced oxidation processes (AOPs) using decolorization/degradation of textile dyes as model processes.

scholarly journals The effect of operational parameters on decolourisation of textile dyes and comparison efficiencies of the UV/H2O2, fenton and photo-fenton processes: A review

2017 ◽  
Vol 15 (1) ◽  
pp. 23-34
Author(s):  
Slobodan Najdanovic ◽  
Jelena Mitrovic ◽  
Aleksandra Zarubica ◽  
Aleksandar Bojic
Keyword(s):  
Advanced Oxidation Processes ◽  
Current Knowledge ◽  
Advanced Oxidation ◽  
Review Article ◽  
Textile Dyes ◽  
H2o2 Concentration ◽  
Fenton Process ◽  
Operational Parameters ◽  
Oxidation Processes ◽  
Initial Ph

In this review article, we summarize the current knowledge about the applicability of advanced oxidation processes (AOPs) such as UV/H2O2, Fenton and photo-Fenton for removal of textile dyes from wastewater and the effect of operational parameters (initial dye concentration, initial H2O2 concentration, initial Fe2+ concentration and initial pH) on these processes. Numerous studies have reported the use of AOPs for degradation of textile dyes, and the results show that they are very effective. By comparing the results of the previous studies, it seems that the photo- Fenton process is more efficient than the Fenton and UV/H2O2 process.

Comparison of three advanced oxidation processes for degradation of textile dyes

2000 ◽  
Vol 42 (5-6) ◽  
pp. 345-354 ◽  
Author(s):  
R. Aplin ◽  
T.D. Waite
Keyword(s):  
Reaction Mechanisms ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Textile Dyes ◽  
Textile Dye ◽  
Optimum Conditions ◽  
Oxidation Processes ◽  
Nacl Concentration ◽  
Initial Ph ◽  
Fenton's Process

This paper examines the use of three advanced oxidation processes in degrading the textile dye, Reactive Red 235. The dye was oxidised using ozonation, standard Fenton's reagent (Fe2+/H2O2) and a modified photo-Fenton's process (UV/Fe oxalate/H2O2) under a variety of conditions. The effects of initial dye concentration, initial pH and NaCl concentration were studied for each process. Each process was found to have different optimum conditions as determined by the underlying reaction mechanisms.

scholarly journals Graphene-Based Catalysts for Ozone Processes to Decontaminate Water

Molecules ◽  
2019 ◽  
Vol 24 (19) ◽  
pp. 3438 ◽  
Author(s):  
Fernando J. Beltrán ◽  
Pedro M. Álvarez ◽  
Olga Gimeno
Keyword(s):  
Organic Pollutants ◽  
Advanced Oxidation Processes ◽  
Catalyst Activity ◽  
Advanced Oxidation ◽  
Oxidation Processes ◽  
Operating Variables ◽  
Radiation Sources ◽  
Radiation Processes ◽  
Main Operating

The use of graphene-based materials as catalysts in both ozone and ozone/radiation processes is creating interest among researchers devoted to the study of advanced oxidation processes (AOPs) for the degradation of organic pollutants in water. In this review, detailed explanations of catalytic and photocatalytic ozonation processes mediated by graphene-based materials are presented, focusing on aspects related to the preparation and characterization of catalysts, the nature of the water pollutants treated, the type of reactors and radiation sources applied, the influence of the main operating variables, catalyst activity and stability, and kinetics and mechanisms.

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