Activation of peroxymonosulfate by base: Implications for the degradation of organic pollutants
Increasing attention has been paid to environmentally friendly activation methods of peroxymonosulfate (PMS) in advanced oxidation processes (AOPs) for organic pollutant elimination. This work demonstrates that Base can be applied as a novel activator for PMS. The Base/PMS system, at ambient tempera...
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Veröffentlicht in: | Chemosphere (Oxford) 2016-05, Vol.151, p.280-288 |
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description | Increasing attention has been paid to environmentally friendly activation methods of peroxymonosulfate (PMS) in advanced oxidation processes (AOPs) for organic pollutant elimination. This work demonstrates that Base can be applied as a novel activator for PMS. The Base/PMS system, at ambient temperature, was able to degrade a variety of organic pollutants, including acid orange 7 (AO7), phenol and bisphenol A. In subsequent experiments with AO7, the decolorization rates for AO7 followed pseudo-first-order kinetics, with rate constant values ranging from 0.0006 to 0.1749 min−1 depending on the operating parameters (initial PMS, Base, AO7 concentrations and reaction temperature). Furthermore, the mechanism for PMS activation by the Base was elucidated by radical scavenger (tert–butyl alcohol, methanol, sodium azide and p−benzoquinone) and electron spin resonance trapping studies. The results revealed that superoxide anion radical and singlet oxygen other than sulfate radical were the primary reactive oxygen species in the Base/PMS system. The findings of this study present a new pathway for PMS activation and provide useful information for the treatment of wastewater.
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•Base can activate peroxymonosulfate at a weakly basic environment.•Base/peroxymonosulfate system is able to degrade a variety of organic pollutants.•Superoxide radical and singlet oxygen may be the dominating reactive oxygen species. |
doi_str_mv | 10.1016/j.chemosphere.2016.02.089 |
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[Display omitted]
•Base can activate peroxymonosulfate at a weakly basic environment.•Base/peroxymonosulfate system is able to degrade a variety of organic pollutants.•Superoxide radical and singlet oxygen may be the dominating reactive oxygen species.</description><identifier>ISSN: 0045-6535</identifier><identifier>EISSN: 1879-1298</identifier><identifier>DOI: 10.1016/j.chemosphere.2016.02.089</identifier><identifier>PMID: 26946115</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Azo Compounds - analysis ; Base ; Benzenesulfonates - analysis ; Benzhydryl Compounds - analysis ; Decolorization ; Hydroxides - chemistry ; Kinetics ; Models, Theoretical ; Oxidation-Reduction ; Peroxides - chemistry ; Peroxymonosulfate activation ; Phenols - analysis ; Reactive oxygen species ; Reactive Oxygen Species - chemistry ; Sulfates - chemistry ; Waste Water - chemistry ; Water Pollutants, Chemical - analysis ; Water Purification - methods</subject><ispartof>Chemosphere (Oxford), 2016-05, Vol.151, p.280-288</ispartof><rights>2016 Elsevier Ltd</rights><rights>Copyright © 2016 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c476t-863e0107a5e45b1e90e2c08e6243c9c29e4a9149103bd5eae8a0d27f06841ede3</citedby><cites>FETCH-LOGICAL-c476t-863e0107a5e45b1e90e2c08e6243c9c29e4a9149103bd5eae8a0d27f06841ede3</cites><orcidid>0000-0001-7111-6543</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.chemosphere.2016.02.089$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26946115$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Qi, Chengdu</creatorcontrib><creatorcontrib>Liu, Xitao</creatorcontrib><creatorcontrib>Ma, Jun</creatorcontrib><creatorcontrib>Lin, Chunye</creatorcontrib><creatorcontrib>Li, Xiaowan</creatorcontrib><creatorcontrib>Zhang, Huijuan</creatorcontrib><title>Activation of peroxymonosulfate by base: Implications for the degradation of organic pollutants</title><title>Chemosphere (Oxford)</title><addtitle>Chemosphere</addtitle><description>Increasing attention has been paid to environmentally friendly activation methods of peroxymonosulfate (PMS) in advanced oxidation processes (AOPs) for organic pollutant elimination. This work demonstrates that Base can be applied as a novel activator for PMS. The Base/PMS system, at ambient temperature, was able to degrade a variety of organic pollutants, including acid orange 7 (AO7), phenol and bisphenol A. In subsequent experiments with AO7, the decolorization rates for AO7 followed pseudo-first-order kinetics, with rate constant values ranging from 0.0006 to 0.1749 min−1 depending on the operating parameters (initial PMS, Base, AO7 concentrations and reaction temperature). Furthermore, the mechanism for PMS activation by the Base was elucidated by radical scavenger (tert–butyl alcohol, methanol, sodium azide and p−benzoquinone) and electron spin resonance trapping studies. The results revealed that superoxide anion radical and singlet oxygen other than sulfate radical were the primary reactive oxygen species in the Base/PMS system. The findings of this study present a new pathway for PMS activation and provide useful information for the treatment of wastewater.
[Display omitted]
•Base can activate peroxymonosulfate at a weakly basic environment.•Base/peroxymonosulfate system is able to degrade a variety of organic pollutants.•Superoxide radical and singlet oxygen may be the dominating reactive oxygen species.</description><subject>Azo Compounds - analysis</subject><subject>Base</subject><subject>Benzenesulfonates - analysis</subject><subject>Benzhydryl Compounds - analysis</subject><subject>Decolorization</subject><subject>Hydroxides - chemistry</subject><subject>Kinetics</subject><subject>Models, Theoretical</subject><subject>Oxidation-Reduction</subject><subject>Peroxides - chemistry</subject><subject>Peroxymonosulfate activation</subject><subject>Phenols - analysis</subject><subject>Reactive oxygen species</subject><subject>Reactive Oxygen Species - chemistry</subject><subject>Sulfates - chemistry</subject><subject>Waste Water - chemistry</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Purification - methods</subject><issn>0045-6535</issn><issn>1879-1298</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkcFO3DAQhq2qVVloX6Eyt16Sjh3bibmhFS1ISL20Z8txJqxXSRxsB7FvT-gC6pHTSKPvn1-aj5BzBiUDpn7sS7fDMaR5hxFLvq5K4CU0-gPZsKbWBeO6-Ug2AEIWSlbyhJymtAdYSak_kxOutFCMyQ0xly77B5t9mGjo6YwxPB7GMIW0DL3NSNsDbW3CC3ozzoN3_8hE-xBp3iHt8C7a7i0e4p2dvKNzGIYl2ymnL-RTb4eEX1_mGfn78-rP9rq4_f3rZnt5WzhRq1w0qkJgUFuJQrYMNSB30KDionLacY3CaiY0g6rtJFpsLHS87kE1gmGH1Rn5frw7x3C_YMpm9MnhMNgJw5IMqxvJBbBavAOtpeJasGpF9RF1MaQUsTdz9KONB8PAPKswe_OfCvOswgA3q4o1--2lZmlH7N6Sr79fge0RwPUvDx6jSc7j5LDzEV02XfDvqHkCb9qhjg</recordid><startdate>201605</startdate><enddate>201605</enddate><creator>Qi, Chengdu</creator><creator>Liu, Xitao</creator><creator>Ma, Jun</creator><creator>Lin, Chunye</creator><creator>Li, Xiaowan</creator><creator>Zhang, Huijuan</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QH</scope><scope>7ST</scope><scope>7TV</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0001-7111-6543</orcidid></search><sort><creationdate>201605</creationdate><title>Activation of peroxymonosulfate by base: Implications for the degradation of organic pollutants</title><author>Qi, Chengdu ; Liu, Xitao ; Ma, Jun ; Lin, Chunye ; Li, Xiaowan ; Zhang, Huijuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c476t-863e0107a5e45b1e90e2c08e6243c9c29e4a9149103bd5eae8a0d27f06841ede3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Azo Compounds - analysis</topic><topic>Base</topic><topic>Benzenesulfonates - analysis</topic><topic>Benzhydryl Compounds - analysis</topic><topic>Decolorization</topic><topic>Hydroxides - chemistry</topic><topic>Kinetics</topic><topic>Models, Theoretical</topic><topic>Oxidation-Reduction</topic><topic>Peroxides - chemistry</topic><topic>Peroxymonosulfate activation</topic><topic>Phenols - analysis</topic><topic>Reactive oxygen species</topic><topic>Reactive Oxygen Species - chemistry</topic><topic>Sulfates - chemistry</topic><topic>Waste Water - chemistry</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Purification - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qi, Chengdu</creatorcontrib><creatorcontrib>Liu, Xitao</creatorcontrib><creatorcontrib>Ma, Jun</creatorcontrib><creatorcontrib>Lin, Chunye</creatorcontrib><creatorcontrib>Li, Xiaowan</creatorcontrib><creatorcontrib>Zhang, Huijuan</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Chemosphere (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qi, Chengdu</au><au>Liu, Xitao</au><au>Ma, Jun</au><au>Lin, Chunye</au><au>Li, Xiaowan</au><au>Zhang, Huijuan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Activation of peroxymonosulfate by base: Implications for the degradation of organic pollutants</atitle><jtitle>Chemosphere (Oxford)</jtitle><addtitle>Chemosphere</addtitle><date>2016-05</date><risdate>2016</risdate><volume>151</volume><spage>280</spage><epage>288</epage><pages>280-288</pages><issn>0045-6535</issn><eissn>1879-1298</eissn><abstract>Increasing attention has been paid to environmentally friendly activation methods of peroxymonosulfate (PMS) in advanced oxidation processes (AOPs) for organic pollutant elimination. This work demonstrates that Base can be applied as a novel activator for PMS. The Base/PMS system, at ambient temperature, was able to degrade a variety of organic pollutants, including acid orange 7 (AO7), phenol and bisphenol A. In subsequent experiments with AO7, the decolorization rates for AO7 followed pseudo-first-order kinetics, with rate constant values ranging from 0.0006 to 0.1749 min−1 depending on the operating parameters (initial PMS, Base, AO7 concentrations and reaction temperature). Furthermore, the mechanism for PMS activation by the Base was elucidated by radical scavenger (tert–butyl alcohol, methanol, sodium azide and p−benzoquinone) and electron spin resonance trapping studies. The results revealed that superoxide anion radical and singlet oxygen other than sulfate radical were the primary reactive oxygen species in the Base/PMS system. The findings of this study present a new pathway for PMS activation and provide useful information for the treatment of wastewater.
[Display omitted]
•Base can activate peroxymonosulfate at a weakly basic environment.•Base/peroxymonosulfate system is able to degrade a variety of organic pollutants.•Superoxide radical and singlet oxygen may be the dominating reactive oxygen species.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>26946115</pmid><doi>10.1016/j.chemosphere.2016.02.089</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-7111-6543</orcidid></addata></record> |
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subjects | Azo Compounds - analysis Base Benzenesulfonates - analysis Benzhydryl Compounds - analysis Decolorization Hydroxides - chemistry Kinetics Models, Theoretical Oxidation-Reduction Peroxides - chemistry Peroxymonosulfate activation Phenols - analysis Reactive oxygen species Reactive Oxygen Species - chemistry Sulfates - chemistry Waste Water - chemistry Water Pollutants, Chemical - analysis Water Purification - methods |
title | Activation of peroxymonosulfate by base: Implications for the degradation of organic pollutants |
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