Degradation kinetics of a potent antifouling agent, butenolide, under various environmental conditions

Handle URI:
http://hdl.handle.net/10754/597924
Title:
Degradation kinetics of a potent antifouling agent, butenolide, under various environmental conditions
Authors:
Chen, Lianguo; Xu, Ying; Wang, Wenxiong; Qian, Pei-Yuan
Abstract:
© 2014 Elsevier Ltd. Here, we investigated the degradation kinetics of butenolide, a promising antifouling compound, under various environmental conditions. The active ingredient of the commercial antifoulant SeaNine 211, 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT), was used as positive control. The results showed that the degradation rate increased with increasing temperature. Half-lives of butenolide at 4. °C, 25. °C and 40. °C were. >64. d, 30.5. d and 3.9. d, respectively. Similar half-lives were recorded for DCOIT: >64. d at 4. °C, 27.9. d at 25. °C and 4.5. d at 40. °C. Exposure to sunlight accelerated the degradation of both butenolide and DCOIT. The photolysis half-lives of butenolide and DCOIT were 5.7. d and 6.8. d, respectively, compared with 9.7. d and 14.4. d for the dark control. Biodegradation led to the fastest rate of butenolide removal from natural seawater, with a half-life of 0.5. d, while no obvious degradation was observed for DCOIT after incubation for 4. d. The biodegradative ability of natural seawater for butenolide was attributed mainly to marine bacteria. During the degradation of butenolide and DCOIT, a gradual decrease in antifouling activity was observed, as indicated by the increased settlement percentage of cypris larvae from barnacle Balanus amphitrite. Besides, increased cell growth of marine diatom Skeletonema costatum demonstrated that the toxicity of seawater decreased gradually without generation of more toxic by-products. Overall, rapid degradation of butenolide in natural seawater supported its claim as a promising candidate for commercial antifouling industry.
Citation:
Chen L, Xu Y, Wang W, Qian P-Y (2015) Degradation kinetics of a potent antifouling agent, butenolide, under various environmental conditions. Chemosphere 119: 1075–1083. Available: http://dx.doi.org/10.1016/j.chemosphere.2014.09.056.
Publisher:
Elsevier BV
Journal:
Chemosphere
KAUST Grant Number:
SA-C0040/UK-C0016
Issue Date:
Jan-2015
DOI:
10.1016/j.chemosphere.2014.09.056
PubMed ID:
25460745
Type:
Article
ISSN:
0045-6535
Sponsors:
This study was supported by Grants from China Mineral Resources Research and Development Association (COMRRDA12SC01) and from the Research Grant Council of HKSAR government (662413), and the King Abdullah University of Science and Technology (SA-C0040/UK-C0016) and the State Key Laboratory in Marine Pollution, City University of Hong Kong.
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DC FieldValue Language
dc.contributor.authorChen, Lianguoen
dc.contributor.authorXu, Yingen
dc.contributor.authorWang, Wenxiongen
dc.contributor.authorQian, Pei-Yuanen
dc.date.accessioned2016-02-25T12:58:58Zen
dc.date.available2016-02-25T12:58:58Zen
dc.date.issued2015-01en
dc.identifier.citationChen L, Xu Y, Wang W, Qian P-Y (2015) Degradation kinetics of a potent antifouling agent, butenolide, under various environmental conditions. Chemosphere 119: 1075–1083. Available: http://dx.doi.org/10.1016/j.chemosphere.2014.09.056.en
dc.identifier.issn0045-6535en
dc.identifier.pmid25460745en
dc.identifier.doi10.1016/j.chemosphere.2014.09.056en
dc.identifier.urihttp://hdl.handle.net/10754/597924en
dc.description.abstract© 2014 Elsevier Ltd. Here, we investigated the degradation kinetics of butenolide, a promising antifouling compound, under various environmental conditions. The active ingredient of the commercial antifoulant SeaNine 211, 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT), was used as positive control. The results showed that the degradation rate increased with increasing temperature. Half-lives of butenolide at 4. °C, 25. °C and 40. °C were. >64. d, 30.5. d and 3.9. d, respectively. Similar half-lives were recorded for DCOIT: >64. d at 4. °C, 27.9. d at 25. °C and 4.5. d at 40. °C. Exposure to sunlight accelerated the degradation of both butenolide and DCOIT. The photolysis half-lives of butenolide and DCOIT were 5.7. d and 6.8. d, respectively, compared with 9.7. d and 14.4. d for the dark control. Biodegradation led to the fastest rate of butenolide removal from natural seawater, with a half-life of 0.5. d, while no obvious degradation was observed for DCOIT after incubation for 4. d. The biodegradative ability of natural seawater for butenolide was attributed mainly to marine bacteria. During the degradation of butenolide and DCOIT, a gradual decrease in antifouling activity was observed, as indicated by the increased settlement percentage of cypris larvae from barnacle Balanus amphitrite. Besides, increased cell growth of marine diatom Skeletonema costatum demonstrated that the toxicity of seawater decreased gradually without generation of more toxic by-products. Overall, rapid degradation of butenolide in natural seawater supported its claim as a promising candidate for commercial antifouling industry.en
dc.description.sponsorshipThis study was supported by Grants from China Mineral Resources Research and Development Association (COMRRDA12SC01) and from the Research Grant Council of HKSAR government (662413), and the King Abdullah University of Science and Technology (SA-C0040/UK-C0016) and the State Key Laboratory in Marine Pollution, City University of Hong Kong.en
dc.publisherElsevier BVen
dc.subjectAntifoulingen
dc.subjectButenolideen
dc.subjectDCOITen
dc.subjectDegradation kineticsen
dc.subjectToxicityen
dc.titleDegradation kinetics of a potent antifouling agent, butenolide, under various environmental conditionsen
dc.typeArticleen
dc.identifier.journalChemosphereen
dc.contributor.institutionHong Kong University of Science and Technology, Hong Kong, Chinaen
kaust.grant.numberSA-C0040/UK-C0016en
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