Heterogeneous catalytic conversion of 4-chlorophenol via atomic hydrogen substitution induced by size-controlled polydisperse nanocobal

Sanni, Samuel Eshorame and Philemon, Olowoyeye and Okoro, Emeka Emmanuel and Oni, Babalola Aisosa and Idowu, Tijani A. and Adegbite, Oluwatosin (2022) Heterogeneous catalytic conversion of 4-chlorophenol via atomic hydrogen substitution induced by size-controlled polydisperse nanocobal. Chemical Engineering Science.

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Abstract

Hyroconversion of 4-Chlorophenol (4-CP) was induced via atomic hydrogen substitution and 0.5–2 M polydisperse cobalt nanoparticles (40–500 d.nm) which were synthesized via a modified-polyol route. The cobalt nanoparticles and hydrogen incursion in the 4-CP helped to enforce the hydroconversion (HDC) reaction of 4-CP. The reaction runs were conducted based on an initial 4-CP wastewater effluent concentration discharged from a pesticide company, different particle sizes, and reaction time. Also, NaOH was added as a proton scavenger to the reaction mixture in order to avoid catalyst-deactivation. Samples from the reactor were collected at different times in order to monitor the hydroconversion process. The Co-catalyst reduced the activation energy of the reaction, initiated the hydro-substitution reaction at an earlier time, as well as enhanced 4-CP hydroconversion. Of all the catalysts, the 2 M polydisperse-cobalt nanoparticles (PD-CoNPs) gave the best performance with a description that fits the desorption mechanism whose keqd value = 0.079.

Item Type:	Article
Uncontrolled Keywords:	Catalysis 4-Chlorophenol Cobalt nanoparticles Hydroconversion Wastewater
Subjects:	T Technology > T Technology (General) T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	AKINWUMI
Date Deposited:	15 Dec 2022 21:38
Last Modified:	15 Dec 2022 21:38
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/16495

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