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Proficient Photocatalytic and Sonocatalytic Degradation of Organic Pollutants Using CuO Nanoparticles
Joint Authors
Srinivasan, Sesha S.
Ram, Ganga
Chauhan, Moondeep
Kaur, Navneet
Bansal, Pratibha
Kumar, Rajeev
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-10
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
In recent years, due to the advancement in nanotechnology, advanced oxidation processes (AOPs), especially sonocatalysis and photocatalysis, have become a topic of interest for the elimination of pollutants from contaminated water.
In the research work reported here, an attempt has been made to study and establish a physicochemical mechanism for the catalytic activity of copper oxide nanoparticles (CuO NPs) in AOPs using the degradation of dyes as model contaminants.
CuO NPs exhibited brilliant sonocatalytic and photocatalytic activities for the degradation of a cationic dye (Victoria Blue) as well as an anionic dye (Direct Red 81).
The degradation efficiency of CuO NPs was calculated by analysing the variation in the absorbance of dye under a UV-Vis spectrophotometer.
The influence of different operating parameters on the catalytic activity of CuO NPs, such as the amount of catalysts dose, pH of the solution, and the initial dye concentration, was thoroughly investigated.
In addition, the kinetic process for the degradation was also examined.
It was observed that both dyes exhibited and followed the pseudo-first-order kinetics relation.
The rate constant for sonocatalysis was high as compared to photocatalysis.
The rate constant for both sonocatalysis and photocatalysis was successfully established, and reusability tests were done to ensure the stability of the used catalysts.
To get an insight into the degradation mechanism, experiments were performed by using ⋅OH radical scavengers.
The efficacy of CuO NPs for dye decolorization was found to be superior for the sonocatalyst than the photocatalyst.
American Psychological Association (APA)
Chauhan, Moondeep& Kaur, Navneet& Bansal, Pratibha& Kumar, Rajeev& Srinivasan, Sesha S.& Ram, Ganga. 2020. Proficient Photocatalytic and Sonocatalytic Degradation of Organic Pollutants Using CuO Nanoparticles. Journal of Nanomaterials،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1188491
Modern Language Association (MLA)
Chauhan, Moondeep…[et al.]. Proficient Photocatalytic and Sonocatalytic Degradation of Organic Pollutants Using CuO Nanoparticles. Journal of Nanomaterials No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1188491
American Medical Association (AMA)
Chauhan, Moondeep& Kaur, Navneet& Bansal, Pratibha& Kumar, Rajeev& Srinivasan, Sesha S.& Ram, Ganga. Proficient Photocatalytic and Sonocatalytic Degradation of Organic Pollutants Using CuO Nanoparticles. Journal of Nanomaterials. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1188491
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1188491