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dc.contributor.authorKang, J.
dc.contributor.authorZhang, H.
dc.contributor.authorDuan, Xiaoguang
dc.contributor.authorSun, Hongqi
dc.contributor.authorTan, X.
dc.contributor.authorWang, Shaobin
dc.date.accessioned2019-02-19T04:17:57Z
dc.date.available2019-02-19T04:17:57Z
dc.date.created2019-02-19T03:58:39Z
dc.date.issued2019
dc.identifier.citationKang, J. and Zhang, H. and Duan, X. and Sun, H. and Tan, X. and Wang, S. 2019. Nickel in hierarchically structured nitrogen-doped graphene for robust and promoted degradation of antibiotics. Journal of Cleaner Production. 218: pp. 202-211.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/74741
dc.identifier.doi10.1016/j.jclepro.2019.01.323
dc.description.abstract

Nickel nanoparticles encapsulated in nitrogen-doped porous graphene (Ni@NPG) were synthesized through a one-pot method as a novel material for catalytic activation of persulfate (PS). The Ni@NPG catalysts were evaluated for adsorptive and catalytic removals of antibiotic sulfachloropyridazine (SCP) as an emerging pollutant and were found to exhibit excellent adsorption and catalysis with 100% SCP removal from water in only 30 min. Meanwhile, great stability and reusability can be achieved with satisfactory organic degradation after 4 successive runs. In addition, metal leaching was prohibited from the metal@carbon catalysts due to the protection of carbon walls. The influences of humid acid and inorganic anions (HCO 3- , Cl - , Br - and H 2 PO 4- ) on SCP degradation at various concentrations were further investigated and the present study shows that all these species promoted the SCP degradation at a low concentration whereas an inhibition effect occurred at higher concentrations due to radical quenching. Electron paramagnetic resonance (EPR) and quenching experiments reveal the PS activation mechanism involving generation of SO 4•- , • OH and • O 2- without singlet oxygen. The synergistic effect of radical and nonradical pathways played crucial roles during the SCP oxidation process.

dc.publisherElsevier
dc.titleNickel in hierarchically structured nitrogen-doped graphene for robust and promoted degradation of antibiotics
dc.typeJournal Article
dcterms.source.volume218
dcterms.source.startPage202
dcterms.source.endPage211
dcterms.source.issn0959-6526
dcterms.source.titleJournal of Cleaner Production
curtin.departmentWASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
curtin.accessStatusFulltext not available


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