Title Surface modification of natural zeolite by chitosan and its use for nitrate removal in cold regions
Author Arora, M.; Eddy, N.K.; Mumford, K.A.; Baba, Y.; Perera, J.M.; Stevens, G.W.
Author Affil Arora, M., University of Melbourne, Particulate Fluids Processing Center, Melbourne, Victoria, Australia. Other: University of Miyazaki, Japan
Source Cold Regions Science and Technology, 62(2-3), p.92-97, . Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0165- 232X
Publication Date July 2010
Notes In English. Based on Publisher- supplied data GeoRef Acc. No: 309548
Index Terms adsorption; ion exchange; pollution; carbohydrates; cold regions; metasomatism; new methods; nitrates; organic compounds; polysaccharides; remediation; zeolitization
Abstract Surface modifications of natural zeolite were performed by coating it with a chitosan layer. The chitosan coated zeolite (Ch-Z) was protonated with either sulfuric or hydrochloric acid and tested for its suitability to capture nitrate from water at 20 and 4C. The surface characterization of the Ch-Z was done by SEM, FTIR, TGA and nitrogen adsorption tests. The results of these tests showed evidence of chitosan coating onto zeolite particles. Ch-Z has comparable capacity to other weak anion exchangers with a nitrate ion exchange capacity 0.74 mmol NO3 g-1 (protonated with HCl).
URL http://hdl.handle.net/10.1016/j.coldregions.2010.03.002
Publication Type journal article
Record ID 65006559