Review of phenol adsorption on transition metal oxides and other adsorbents

Adsorption technology is widely used to remove specific pollutants from wastewater, including the very problematic group of phenolic compounds. Transition metal oxides are the preferred adsorbent for phenol removal. This review analyzes the recent advances in the adsorptive removal of phenol using t...

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Bibliographic Details
Published in:Journal of water process engineering 2022-10, Vol.49, p.102965, Article 102965
Main Authors: Dehmani, Younes, Dridi, Donia, Lamhasni, Taibi, Abouarnadasse, Sadik, Chtourou, Radhouane, Lima, Eder C.
Format: Article
Language:English
Subjects:
Adsorption
Adsorption kinetics
Adsorption mechanism
Phenol
Transition metal oxide
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Summary:Adsorption technology is widely used to remove specific pollutants from wastewater, including the very problematic group of phenolic compounds. Transition metal oxides are the preferred adsorbent for phenol removal. This review analyzes the recent advances in the adsorptive removal of phenol using transition metal oxides. Here, we review the synthesis and characterization of transition metal oxides with a particular focus on the effects of the synthesis method on the surface functionality and structural and textural properties of transition metal oxides. Moreover, the effects of the adsorption parameters, i.e., solution's pH and phenol's concentration, on the adsorption process are discussed. Finally, an in-depth analysis of the adsorption kinetics and the mechanism is provided. [Display omitted] •Phenol adsorption kinetics was discussed and criticized.•Phenol adsorption showed rapid kinetics reaching 90 % capacity under 30 min.•Phenol adsorption capacities of oxides were compared with those of other materials.•Gaps in the literature and future research directions have been presented.
ISSN:2214-7144
2214-7144
DOI:10.1016/j.jwpe.2022.102965