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Chitosan-silver nanoparticles composite as point-of-use drinking water filtration system for household to remove pesticides in water

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dc.citedby95
dc.contributor.authorSaifuddin N.en_US
dc.contributor.authorNian C.Y.en_US
dc.contributor.authorZhan L.W.en_US
dc.contributor.authorNing K.X.en_US
dc.contributor.authorid22135844300en_US
dc.contributor.authorid43161377400en_US
dc.contributor.authorid36976796000en_US
dc.contributor.authorid36975914600en_US
dc.date.accessioned2023-12-29T07:48:48Z
dc.date.available2023-12-29T07:48:48Z
dc.date.issued2011
dc.description.abstractAdsorption techniques are widely used to remove certain classes of pollutants from water and wastewater. Biosorbents such as natural and waste materials from industries and agriculture can be used as alternatives adsorbents which are inexpensive and easily obtainable. The objective of this study was to prepare silver nanoparticles embedded in chitosan, which is a non-toxic and biodergadeable natural polymer, using microwave irradiation for the removal of pesticides from water. Cross-linked chitosan-silver nanoparticle composite bioadsorbent was prepared in order to investigate the adsorption and release behaviours of the pesticide, Atrazine. The concentration and time dependencies of the adsorbent for the pesticide were studied. The equilibrium time was found to be 65 min for 1, 5, 10, 20 and 25 ppm Atrazine concentration. A sharp increase in percent reduction of the pesticide content was observed in water as the adsorbent dose was increased from 0.5 to 2.0 g. At 2.0 g dosage of cross-linked chitosan-silver nanoparticle composite micro-beads, 98% removal was observed for 1 L of pesticide solution at 1 ppm concentration (1 mg L-1). From the batch studies, the adsorbent capacity of the cross-linked chitosan-silver nanoparticle composite micro-beads toward Atrazine was 0.5 mg g-1 of the adsorbent in 65 min. An on-line filter was made using a column of cross-linked chitosan-silver nanoparticle composite micro-beads and the device was used for pesticide removal for extended periods. From the breakthrough curves, the results of breakthrough adsorption capacity and the total adsorption capacity were, respectively 115 and 360 ?g mL-1 cross-linked chitosan-silver nanoparticles composite micro beads. � 2011 Academic Journals Inc.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.3923/ajb.2011.142.159
dc.identifier.epage159
dc.identifier.issue2
dc.identifier.scopus2-s2.0-79951667339
dc.identifier.spage142
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79951667339&doi=10.3923%2fajb.2011.142.159&partnerID=40&md5=fe97e20a9b6081a26fba3f6414dc2bb6
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30517
dc.identifier.volume6
dc.pagecount17
dc.sourceScopus
dc.sourcetitleAsian Journal of Biochemistry
dc.subjectAdsorption
dc.subjectAtrazine
dc.subjectCross linked chitosan
dc.subjectPesticide
dc.subjectSilver nanoparticle
dc.titleChitosan-silver nanoparticles composite as point-of-use drinking water filtration system for household to remove pesticides in wateren_US
dc.typeArticleen_US
dspace.entity.typePublication
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