Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutants
Various biochar samples were used for exploring the Fe(III)/biochar interactions and transformation of reactive oxygen species during co-activation of H2O2. The enhanced •OH production is positively related to the biochars' capacity of reducing Fe(III) into Fe(II), which is then linked with the...
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Format: | Article |
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Elsevier
2023-03-01
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Series: | Catalysis Communications |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S1566736723000286 |
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author | Mengna Lai Jianfa Li Huiming Li Yao Gui Jinhong Lü |
author_facet | Mengna Lai Jianfa Li Huiming Li Yao Gui Jinhong Lü |
author_sort | Mengna Lai |
collection | DOAJ |
description | Various biochar samples were used for exploring the Fe(III)/biochar interactions and transformation of reactive oxygen species during co-activation of H2O2. The enhanced •OH production is positively related to the biochars' capacity of reducing Fe(III) into Fe(II), which is then linked with their redox-active moieties and adsorption of Fe(III). Besides the •OH produced sustainably from Fenton reaction between H2O2 and regenerated Fe(II), a novel route involving dissolved O2 is proposed to enhance •OH production in the co-activated system. Consequently, faster and more efficient oxidation of refractory pollutants was achieved by co-activation of H2O2 with Fe(III) and biochar together. |
first_indexed | 2024-04-10T04:15:54Z |
format | Article |
id | doaj.art-452d58ddab334ba380e9da8d6205e106 |
institution | Directory Open Access Journal |
issn | 1873-3905 |
language | English |
last_indexed | 2024-04-10T04:15:54Z |
publishDate | 2023-03-01 |
publisher | Elsevier |
record_format | Article |
series | Catalysis Communications |
spelling | doaj.art-452d58ddab334ba380e9da8d6205e1062023-03-12T04:20:37ZengElsevierCatalysis Communications1873-39052023-03-01176106626Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutantsMengna Lai0Jianfa Li1Huiming Li2Yao Gui3Jinhong Lü4College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, ChinaCorresponding author at: 508 Huancheng West Road, Zhejiang, Shaoxing 312000, China.; College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, ChinaCollege of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, ChinaCollege of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, ChinaCollege of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, ChinaVarious biochar samples were used for exploring the Fe(III)/biochar interactions and transformation of reactive oxygen species during co-activation of H2O2. The enhanced •OH production is positively related to the biochars' capacity of reducing Fe(III) into Fe(II), which is then linked with their redox-active moieties and adsorption of Fe(III). Besides the •OH produced sustainably from Fenton reaction between H2O2 and regenerated Fe(II), a novel route involving dissolved O2 is proposed to enhance •OH production in the co-activated system. Consequently, faster and more efficient oxidation of refractory pollutants was achieved by co-activation of H2O2 with Fe(III) and biochar together.http://www.sciencedirect.com/science/article/pii/S1566736723000286BiocharDissolved ironFenton reactionFe(III)/Fe(II) cycleReactive oxygen species |
spellingShingle | Mengna Lai Jianfa Li Huiming Li Yao Gui Jinhong Lü Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutants Catalysis Communications Biochar Dissolved iron Fenton reaction Fe(III)/Fe(II) cycle Reactive oxygen species |
title | Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutants |
title_full | Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutants |
title_fullStr | Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutants |
title_full_unstemmed | Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutants |
title_short | Adsorption-reduction of Fe(III) by different biochars and their co-activation of H2O2 for oxidation of refractory pollutants |
title_sort | adsorption reduction of fe iii by different biochars and their co activation of h2o2 for oxidation of refractory pollutants |
topic | Biochar Dissolved iron Fenton reaction Fe(III)/Fe(II) cycle Reactive oxygen species |
url | http://www.sciencedirect.com/science/article/pii/S1566736723000286 |
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