%0 Journal Article
%T SynthesisofnovelhierarchicalZSM-5monolithsandtheirapplicationintrichloroethyleneremoval
%A Jo£¿
%A o Pires
%A Ana C. Fernandes
%A Divakar Duraiswami
%J ´ß»¯Ñ§±¨
%P 1492-1496
%D 2014
%R 10.1016/S1872-2067(14)60085-1
%X £¿Aself-supportingZSM-5monolithwithahierarchicalporositywaspreparedusingpolyurethanefoam(PUF)asastructuraltemplateandahydrothermalsynthesisprocedure.Thesynthesizedmonolithwascharacterizedandinvestigatedtowardstheadsorptionandcatalyticoxidationoftrichloroethylene(TCE).AdsorptionofTCEwasstudiedgravimetricallyandoxidationofTCEwasstudiedusingavapor-phasedown-flowreactor.MonolithicZSM-5displayedgoodsorptionpropertiesandcompletelyoxidizedTCE.Conversionlevelsof50%and90%wereachievedatreducedtemperatures(by~50¡æ)whencomparedwiththeconversiontemperaturesobtainedfromthepowdercounterparts.BesidestheactivityofthemonolithtowardsTCEadsorptionandoxidation,itwasstableandenhanceddiffusion,therebyreducingpressuredropstoagreatextentowingtoitshierarchicalporousnature.
%K Hierarchicallyporouszeolite
%K ZSM-5
%K Monoliths
%K Trichloroethylene
%K Polyurethanefoam
%U http://www.chxb.cn/CN/abstract/abstract21332.shtml