Synthesis and characterisation of Zeolites from Coal Fly Ash (CFA)

Show simple item record Chigondo, Marko Guyo, Upenyu Shumba, Munyaradzi Chigondo, Fidelis Nyamunda, Benias Chamunorwa Moyo, Mambo Nharingo, Tichaona 2016-04-27T14:43:38Z 2016-04-27T14:43:38Z 2013-08
dc.identifier.issn 2250-3498
dc.description.abstract In this study, disposed coal fly ash samples from Zimbabwe were used in synthesis of zeolites. The method of direct hydrothermal treatment with sodium hydroxide at different concentrations (2, 2.5, 3.5 and 4.5 moldm-3) at a constant temperature of 100°C and activation time of 24 h was applied. Characterisation of coal fly ash and confirmation of occurrence of the zeolite material was done using XRF, XRD, FTIR, and BET techniques. The zeolite materials formed were a mixture of zeolite Na-X (NaAlSi1.1O4.2225H2O), zeolite Na-A (Na2Al2Si3.3O8.867H2O), zeolite NaP1 Na6Al6Si10O32H2O) and zeolite hydroxysodalite (Na1.08Al2Si1.68O7.441.8H2O). The variety and yield of zeolites formed depend on the concentration of sodium hydroxide used. en_US
dc.language.iso en en_US
dc.relation.ispartofseries IRACST – Engineering Science and Technology: An International Journal (ESTIJ);Vol. 3, No.4:714 - 718
dc.subject Coal fly ash, Zeolites, Characterisation en_US
dc.title Synthesis and characterisation of Zeolites from Coal Fly Ash (CFA) en_US
dc.type Article en_US

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