Photochemical Treatments of Textile Industries Wastewater

Hussein, Falah H.

doi:10.5772/18902

Cited by 14 publications

(5 citation statements)

References 49 publications

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“…Moreover, recombination of the electron‐hole pair reduces with increasing light intensity. It is observed by many researchers that, at low light intensity (0–20 mW/cm 2 ) the rate of photocatalysis reactions would increase linearly (first order) whereas, at intermediate light intensity (25 mW/cm 2 ) the rate increases with the square root of the light intensity (half order) and at higher intensity the rate is independent of light intensity (zero order) (Sakthivel et al., 2003, Ollis, 1991, Hussein 2011). The trends are attributed to the fact that, at low light intensity electron‐hole formation is prevalent whereas, electron‐hole recombination is negligible.…”

Section: Application Of Metal Oxides and Doped Metal Oxides As Photoc...mentioning

confidence: 99%

A review on ultrasound assisted synthesis of metal oxide and doped metal oxide nanocatalysts and subsequent application as photocatalyst for dye degradation

Dey

Gogate

Gote

2023

Environmental Quality Mgmt

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In recent years, research on improving the synthesis of catalysts has been at the forefront because of advancements in nanotechnology and greener conventions. Using ultrasound (US) during nanocatalysts synthesis is one of the green approaches that can yield improved catalyst characteristics under conditions of shorter reaction time and requirement of low temperature and pressure. The current paper aims at giving an insight into US‐assisted synthesis (emphasized on sol‐gel and hydrothermal) of different metal oxide nanocatalysts. It has been elucidated that US‐assisted synthesis gives nanocatalyst with narrower particle size distribution with lower mean size, higher surface area, better morphology with less agglomeration, and higher catalytic activity. Ultrasound has thus been demonstrated to yield improvements in morphological, optical, and electronic properties of the nanocatalysts, however, scalability and industrial application of sonochemical synthesis have not been seen very popular. Some guidelines for future research into the development of novel nanocatalysts and industrial scale‐up studies are also provided. The review also summarizes the application of these metal oxides as photocatalysts for dye degradation or effluent treatment containing dyes, highlighting the fundamentals of photocatalysis as well. A comparative study has been reported for catalysts obtained using the US‐assisted synthesis and conventional synthesis of the photocatalysts in terms of catalytic activity. The benefits of using ultrasound‐assisted synthesis in terms of higher photocatalytic degradation have been clearly demonstrated.

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Section: Application Of Metal Oxides and Doped Metal Oxides As Photoc...mentioning

confidence: 99%

A review on ultrasound assisted synthesis of metal oxide and doped metal oxide nanocatalysts and subsequent application as photocatalyst for dye degradation

Dey

Gogate

Gote

2023

Environmental Quality Mgmt

View full text Add to dashboard Cite

show abstract

“…It was considered that the removal of color from wastewaters is more important than the removal of other organic colorless chemicals. Decolorization of effluent from textile dyeing and finishing industry was regarded important because of aesthetic and environmental concerns [9].…”

Section: Water Detoxification Systemmentioning

confidence: 99%

Industrial Applications of Nanoparticles – A Prospective Overview

Santos

Gabriel

Blanchy

et al. 2015

Materials Today: Proceedings

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“…In the sonication process, hydroxyl radicals, hydrogen, and H 2 O 2 are already generated by the collapse of the acoustic cavitation bubbles through ultrasonic irradiation, which undoubtedly enhances the oxidation method of wastewater treatment. 7 While using the chemical method by oxidation, Hussien 8 reported that the addition of hydrogen peroxide as an oxidant resulted in the degradation of the red dispersed dye through the following set of chemical equations:…”

Section: Case Study On Textile Waste Water Treatment For Hydrogen Pmentioning

confidence: 99%