KAJIAN PENJERAPAN PEWARNA METILENA BIRU KE ATAS MANIK KITOSAN DAN MANIK KITOSAN BERANGKAISILANG-GLA

KAJIAN PENJERAPAN PEWARNA METILENA BIRU KE ATAS MANIK KITOSAN DAN MANIK KITOSAN BERANGKAISILANG-GLA

Simple item page

dc.contributor.author	ABU BAKAR, NOR HAYATI
dc.date.accessioned	2016-01-12T03:45:32Z
dc.date.available	2016-01-12T03:45:32Z
dc.date.issued	2004-03
dc.description.abstract	The adsorption of methylene blue onto chitosan and cross-linked chitosan beads has been investigated. These beads are very useful as adsorption materials for effluent treatment in the textile industry. The study of adsorption properties involves several optimum parameters such as agitation time and pH to test the maximum adsorption of the methylene blue dye by the chitosan and chitosan-GLA beads. It is found that the optimum pH of adsorption is basic, that is pH 8.0 for the chitosan beads and pH 10.0 for the chitosan-GLA beads. An agitation time of 30 minutes was found to be the best for the adsorption of methylene blue dye. The size of both beads are fixed < 250 !lm. The Langmuir and Freundlich isothermal adsorption were used to test the efficiency of adsorption and the appropriate constants that was determined. Experimental data for the methylene blue dye adsorption on the chitosan and chitosan-GLA beads comply with the Langmuir and Freundlich equation. The maximum adsorption capacity of methylene blue on the chitosan and chitosan-GLA beads determined using the isothermal Freundlich is 6.49 mg methylene blue/g chitosan-GLA and 1.87 mg methylene blue/g chitosan beads. Experimental data indicates that the chitosan beads that has been crossed linked with gluteraldehyde has better uptake capacities on methylene blue dye than chitosan beads without crosslinking. To explain the kinetic process of the adsorption, two models were used: pseudo first-order model and pseudo second-order model. The study shows that pseudo-first order is more suitably used to explain the kinetic of adsorption of methylene blue dye on the chitosan and chitosan-GLA beads. Finally, the percentage of the relative standard deviation (RSD) to ensure the precision of the whole experiment on chitosan a nd crosslinked c hitosan for methylene blue were at 2.47 % and 4.40 % respectively. These results show that the experiments are reliable and acceptable.	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/1455
dc.subject	PENJERAPAN PEWARNA	en_US
dc.subject	MANIK KITOSAN	en_US
dc.title	KAJIAN PENJERAPAN PEWARNA METILENA BIRU KE ATAS MANIK KITOSAN DAN MANIK KITOSAN BERANGKAISILANG-GLA	en_US
dc.type	Thesis	en_US

Files

License bundle

Now showing 1 - 1 of 1

Name:: license.txt
Size:: 1.71 KB
Format:: Item-specific license agreed upon to submission
Description:

Collections

Pusat Pengajian Sains Kimia - Tesis