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Titanium dioxide/zeolite integrated photocatalytic adsorbents for the degradation of amoxicillin

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dc.contributor Australian Institute Of Marine Science
dc.contributor Coll Sci Technol & Engn
dc.contributor Biomol Anal Facil
dc.contributor Coll Med & Dent
dc.contributor James Cook Univ
dc.contributor James Cook University
dc.contributor Australian Inst Marine Sci KANAKARAJU, DEVAGI KOCKLER, JUTTA MOTTI, CHERIE A. GLASS, BEVERLEY D. OELGEMOELLER, MICHAEL 2014-11-26T22:44:41Z 2014-11-26T22:44:41Z 2017-03-21T01:09:26Z 2019-05-09T01:11:52Z 2017-03-21T01:09:26Z 2017-03-21T01:09:26Z 2014-11-26T22:44:41Z 2019-05-09T01:11:52Z 2015-05-01
dc.identifier.citation Kanakaraju D, Kockler J, Motti CA, Glass BD (2015) Titanium dioxide/zeolite integrated photocatalytic adsorbents for the degradation of amoxicillin. Applied Catalysis B: Environmental 166-167: 45-55 en_US
dc.identifier.issn 0926-3373
dc.description.abstract Integrated photocatalytic adsorbents (IPA) prepared from TiO2 and natural zeolite were applied to amoxicillin (AMX) degradation. The acid-alkali pre-treated zeolite annealed at 300 degrees C under nitrogen resulted in the best degradation of AMX. The superior performance of this IPA material was explained using scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and X-ray diffraction (XRD). SEM analysis showed an uneven surface as a result of TiO2 cluster deposition, which provides more active sites for adsorption and degradation. XRD results revealed that peaks from more photoactive anatase were more prominent in this IPA loadings, comparison experiments with untreated zeolite suggested that the pores are still available for adsorption. The overall performance of the IPA material for the degradation of AMX was thus attributed to the adsorption capability of the zeolite carrier, the photocatalytic activity of TiO2 coating and acid-catalyzed hydrolysis ('capture & destroy'). Degradation products resulting from TiO2/zeolite IPA-induced hydrolysis were identified by liquid chromatography-mass spectrometry (LC-MS) prior to photocatalytic treatment. AMX and its thermal degradants were almost completely removed after 240 min of irradiation. The efficiency of the developed TiO2/zeolite material provides a potentially economical way of degrading pharmaceutical compounds and recovering photocatalysts simultaneously. (C) 2014 Elsevier B.V. All rights reserved.
dc.description.sponsorship This work was supported by research grants from James Cook University (FAIG award 2009 and GRS awards 2011 and 2012). D.K. also thanks the Malaysian Government for a University Doctorate Training Award. The authors also wish to thank Evonik industries for the donation of Titanium dioxide P25 Aeroxide (R), Miss Saira Mumtaz (JCU) for technical assistance and Mr. Stephen Boyle (AIMS) for TOC analyses.
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartof Null
dc.subject Natural Zeolite
dc.subject Engineering, Environmental
dc.subject Tio2
dc.subject Hydrolysis
dc.subject Engineering
dc.subject Photodegradation
dc.subject Chemistry
dc.subject Waste-water Treatment
dc.subject Fenton Process
dc.subject Structure Elucidation
dc.subject Antibiotic Amoxicillin
dc.subject Chemistry, Physical
dc.subject Engineering, Chemical
dc.subject Photocatalysis
dc.subject Titanium Dioxide
dc.subject Dioxide
dc.subject Amoxicillin
dc.subject Integrated Photocatalytic Adsorbent
dc.subject Aqueous-solution
dc.subject Controlled Environmental-conditions
dc.title Titanium dioxide/zeolite integrated photocatalytic adsorbents for the degradation of amoxicillin
dc.type journal article en_US
dc.identifier.doi 10.1016/j.apcatb.2014.11.001
dc.identifier.wos WOS:000348753400007

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