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dc.contributor.authorZhou, R
dc.contributor.authorZhang, T
dc.contributor.authorZhou, R
dc.contributor.authorMai-Prochnow, A
dc.contributor.authorPonraj, SB
dc.contributor.authorFang, Z
dc.contributor.authorMasood, H
dc.contributor.authorKananagh, J
dc.contributor.authorMcClure, D
dc.contributor.authorAlam, D
dc.contributor.authorOstrikov, K
dc.contributor.authorCullen, PJ
dc.description.abstractComplete degradation of mixtures of organic pollutants is a major challenge due to their diverse degradation pathways. In this work, a novel microplasma bubble (MPB) reactor was developed to generate plasma discharges inside small forming bubbles as an effective mean of delivering reactive species for the degradation of the target organic contaminants. The results show that the integration of plasma and bubbles resulted in efficient degradation for all azo, heterocyclic, and cationic dyes, evidenced by the outstanding energy efficiency of 13.0, 18.1 and 22.1 g/kWh with 3 min of processing, in degrading alizarin yellow (AY), orange II (Orng-II) and methylene blue (MB), individually. The MPB treatment also effectively and simultaneously degraded the dyes in their mixtures such as AY + Orng-II, AY + MB and AY + Orng-II + MB. Scavenger assays revealed that the short-lived reactive species, including the hydroxyl (radical dotOH) and superoxide anion (radical dotO2−) radicals, played the dominant role in the degradation of the pollutants. Possible degradation pathways were proposed based on the intermediate products detected during the degradation process. The feasibility of this proposed strategy was further evaluated using other common water pollutants. Reduced toxicity was confirmed by the observed increases in human cell viability for the treated water. This work could support the future development of high performance- and energy-efficient wastewater abatement technologies.en_US
dc.relation.ispartofjournalScience of the Total Environmenten_US
dc.subject.fieldofresearchEnvironmental Sciencesen_US
dc.subject.keywordsOrganic dyesen_US
dc.subject.keywordsPlasma-liquid interactionen_US
dc.subject.keywordsReactive oxygen speciesen_US
dc.subject.keywordsUnderwater microplasma bubblesen_US
dc.titleUnderwater microplasma bubbles for efficient and simultaneous degradation of mixed dye pollutantsen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dcterms.bibliographicCitationZhou, R; Zhang, T; Zhou, R; Mai-Prochnow, A; Ponraj, SB; Fang, Z; Masood, H; Kananagh, J; McClure, D; Alam, D; Ostrikov, K; Cullen, PJ, Underwater microplasma bubbles for efficient and simultaneous degradation of mixed dye pollutants, Science of the Total Environment, 2021, 750, pp. 142295en_US
gro.hasfulltextNo Full Text
gro.griffith.authorOstrikov, Kostya (Ken)

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