Synthesis of mixed oxide Ti/Fe2O3 as solar light-induced photocatalyst for heterogeneous photo-Fenton like process

Ramalho, Maria Luisa A.; Madeira, Vívian Stumpf; Brasileiro, Islanny Larissa Ouriques; Fernandes, Pollyana Caetano Ribeiro; Barbosa, Celmy B.M.; Arias, Santiago; Pacheco, José Geraldo A.

doi:10.1016/j.jphotochem.2020.112873

Cited by 25 publications

(2 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The potent hydroxyl radical, which oxidizes organic molecules in a non-selective manner, can modify the chemical structure of pollutants in this physical-chemical process. With the right process conditions, total mineralization can be achieved, resulting in CO 2 , water, and organic acids (Kowalska et al 2021;Maniakova et al 2021;Ramalho et al 2021).…”

Section: Factors Influencing the Photo-fenton Processmentioning

confidence: 99%

Solar photo-oxidation of recalcitrant industrial wastewater: a review

et al. 2022

View full text Add to dashboard Cite

Conventional methods to clean wastewater actually lead to incomplete treatments, calling for advanced technologies to degrade recalcitrant pollutants. Herein we review solar photo-oxidation to degrade the recalcitrant contaminants in industrial wastewater, with focus on photocatalysts, reactor design and the photo-Fenton process. We discuss limitations due to low visible-light absorption, catalyst collection and reusability, and production of toxic by-products. Photodegradation of refractory organics by solar light is controlled by pH, photocatalyst composition and bandgap, pollutant properties and concentration, irradiation type and intensity, catalyst loading, and the water matrix.

show abstract

Section: Factors Influencing the Photo-fenton Processmentioning

confidence: 99%

Solar photo-oxidation of recalcitrant industrial wastewater: a review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Worldwide, several industrial activities, such as textile, food and pharmaceutical industries, are responsible for the disposal of non-degraded synthetic dyes in aquatic environments, even after undergoing conventional treatment (Tang et al 2020;Ramalho et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Novel application of FeIn2S4 as an efficient photo-Fenton catalyst for degradation of Ponceau 4R in aqueous solution

Grassi

Salla

Jahn

et al. 2021

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

The chalcogenide composite FeIn 2 S 4 was prepared by hydrothermal route and, for the first time, investigated as a heterogeneous catalyst in the photo-Fenton treatment for Ponceau 4R dye (C 20 H 11 N 2 Na 3 O 10 S 3 ) under visible irradiation. The composite was characterized by X-ray diffraction (DRX), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectrometry (EDS) and elemental mapping, band gap energy and X-ray photoelectron spectroscopy (XPS). The optimal experimental conditions were investigated and determined to be pH 3.0, 0.5 g L −1 of catalyst and 2.5 mmol L −1 of H 2 O 2 . A decolorization efficiency of 93.3% was achieved in 60 min of reaction and a TOC removal of 92.3% was reached in 180 min. The stability and recycle capacity of FeIn 2 S 4 indicated that the catalyst can be used more than four times without considerable loss of efficiency. Free radicals investigation revealed that • OH and O 2•− radicals were the major oxygen reactive species involved on Ponceau 4R degradation. The lower-mass intermediates from Ponceau 4R degradation were identified, and a mechanism for the photo-Fenton treatment was suggested. Therefore, the composite showed a performance that makes it a promising catalyst for removing emerging contaminants in water.

show abstract

Nanostructured Iron Oxide Hybrid Composites as Heterogeneous Fenton‐Like Catalyst for Remediation of Persistent Organic Pollutants

Gogoi

Liu

et al. 2022

Heterogeneous Nanocatalysis for Energy and Environmental Sustainability

View full text Add to dashboard Cite

Synthesis of mixed oxide Ti/Fe2O3 as solar light-induced photocatalyst for heterogeneous photo-Fenton like process

Cited by 25 publications

References 59 publications

Solar photo-oxidation of recalcitrant industrial wastewater: a review

Solar photo-oxidation of recalcitrant industrial wastewater: a review

Novel application of FeIn2S4 as an efficient photo-Fenton catalyst for degradation of Ponceau 4R in aqueous solution

Nanostructured Iron Oxide Hybrid Composites as Heterogeneous Fenton‐Like Catalyst for Remediation of Persistent Organic Pollutants

Contact Info

Product

Resources

About