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REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION BY POLYMER BASED GUAR GUM-G-POLY (AAm) AND ACTIVED CHARCOAL ADSORBENTS

Navin Chandra Kothiyal ; Department of Chemistry, Dr. B.R. Ambedkar National Institute of Technology, India
Sumit Sharma ; Department of Chemistry, Dr. B.R. Ambedkar National Institute of Technology, India

Puni tekst: engleski, pdf (908 KB) str. 3-22 preuzimanja: 238* citiraj
APA 6th Edition
Chandra Kothiyal, N. i Sharma, S. (2012). REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION BY POLYMER BASED GUAR GUM-G-POLY (AAm) AND ACTIVED CHARCOAL ADSORBENTS. The holistic approach to environment, 2 (1), 3-22. Preuzeto s https://hrcak.srce.hr/78395
MLA 8th Edition
Chandra Kothiyal, Navin i Sumit Sharma. "REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION BY POLYMER BASED GUAR GUM-G-POLY (AAm) AND ACTIVED CHARCOAL ADSORBENTS." The holistic approach to environment, vol. 2, br. 1, 2012, str. 3-22. https://hrcak.srce.hr/78395. Citirano 11.12.2019.
Chicago 17th Edition
Chandra Kothiyal, Navin i Sumit Sharma. "REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION BY POLYMER BASED GUAR GUM-G-POLY (AAm) AND ACTIVED CHARCOAL ADSORBENTS." The holistic approach to environment 2, br. 1 (2012): 3-22. https://hrcak.srce.hr/78395
Harvard
Chandra Kothiyal, N., i Sharma, S. (2012). 'REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION BY POLYMER BASED GUAR GUM-G-POLY (AAm) AND ACTIVED CHARCOAL ADSORBENTS', The holistic approach to environment, 2(1), str. 3-22. Preuzeto s: https://hrcak.srce.hr/78395 (Datum pristupa: 11.12.2019.)
Vancouver
Chandra Kothiyal N, Sharma S. REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION BY POLYMER BASED GUAR GUM-G-POLY (AAm) AND ACTIVED CHARCOAL ADSORBENTS. The holistic approach to environment [Internet]. 2012 [pristupljeno 11.12.2019.];2(1):3-22. Dostupno na: https://hrcak.srce.hr/78395
IEEE
N. Chandra Kothiyal i S. Sharma, "REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION BY POLYMER BASED GUAR GUM-G-POLY (AAm) AND ACTIVED CHARCOAL ADSORBENTS", The holistic approach to environment, vol.2, br. 1, str. 3-22, 2012. [Online]. Dostupno na: https://hrcak.srce.hr/78395. [Citirano: 11.12.2019.]

Sažetak
Graft copolymerization of acryl-amide onto guar-gum has been carried out in the presence of potassium per sulphate as a redox initiator. The prepared graft copolymer was characterized by various techniques such as FT-IR, SEM-EDX and TGA-DTA-DTG. Activated charcoal was also studied as the adsorbent in the present study to evaluate their adsorption capacity for Cr (Vl) and compared it with indigenously synthesized graft copolymer. The experimental data were fitted well to Langmuir adsorption isotherm for Guar Gum-g-Poly (AAm) as well as activated charcoal. The maximum monolayer adsorption capacities for Guar Gum-g-Poly(AAm) and activated charcoal were 142.8 mg/g and 200 mg/g. Pseudo second order model was found to explain the kinetics of Cr (VI) adsorption most effectively with good correlations (R2>0.99) in both cases. Thermodynamic parameters showed that adsorption processes were spontaneous and endothermic for Guar Gum-g-Poly (AAm) and activated charcoal.

Ključne riječi
adsorption; guar gum-g-poly (AAm); chromium (VI); isotherms

Hrčak ID: 78395

URI
https://hrcak.srce.hr/78395

Posjeta: 434 *