eprintid: 17843
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/78/43
datestamp: 2023-12-19 03:24:09
lastmod: 2023-12-19 03:24:09
status_changed: 2023-12-19 03:08:47
type: article
metadata_visibility: show
creators_name: Gasim, M.F.
creators_name: Lim, J.-W.
creators_name: Low, S.-C.
creators_name: Lin, K.-Y.A.
creators_name: Oh, W.-D.
title: Can biochar and hydrochar be used as sustainable catalyst for persulfate activation?
ispublished: pub
keywords: Catalysts; Chemical activation; Pollution; Surface chemistry; Sustainable development, Anthropogenic pollutants; Biochar; Hydrochar; Peroxydisulfate; Peroxymonosulfate; Persulfate activations; Persulphate; Pollutants removal; Property; ]+ catalyst, Biomass, biochar; charcoal, adsorption; biomass; catalysis, Adsorption; Biomass; Catalysis; Charcoal
note: cited By 41
abstract: Over the past decade, there has been a surge of interest in using char (hydrochar or biochar) derived from biomass as persulfate (PS, either peroxymonosulfate or peroxydisulfate) activator for anthropogenic pollutants removal. While extensive investigation showed that char could be used as a PS activator, its sustainability over prolonged application is equivocal. This review provides an assessment of the knowledge gap related to the sustainability of char as a PS activator. The desirable char properties for PS activation are identified, include the high specific surface area and favorable surface chemistry. Various synthesis strategies to obtain the desirable properties during biomass pre-treatment, hydrochar and biochar synthesis, and char post-treatment are discussed. Thereafter, factors related to the sustainability of employing char as a PS activator for anthropogenic pollutants removal are critically evaluated. Among the critical factors include performance uncertainty, competing adsorption process, char stability during PS activation, biomass precursor variation, scalability, and toxic components in char. Finally, some potential research directions are provided. Fulfilling the sustainability factors will provide opportunity to employ char as an economical and efficient catalyst for sustainable environmental remediation. © 2021 Elsevier Ltd
date: 2022
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116323325&doi=10.1016%2fj.chemosphere.2021.132458&partnerID=40&md5=4d5e4cd4d61a77e732fc71e75b92561e
id_number: 10.1016/j.chemosphere.2021.132458
full_text_status: none
publication: Chemosphere
volume: 287
refereed: TRUE
issn: 00456535
citation:   Gasim, M.F. and Lim, J.-W. and Low, S.-C. and Lin, K.-Y.A. and Oh, W.-D.  (2022) Can biochar and hydrochar be used as sustainable catalyst for persulfate activation?  Chemosphere, 287.   ISSN 00456535