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Shehzad H, Ahmed E, Din MI, Farooqi ZH, Arshad M, Sharif A, Zhou L, Yun W, Umer R. Facile Synthesis of Novel Carboxymethyl-Chitosan/Sodium Alginate Grafted with Amino-Carbamate Moiety/Bentonite Clay Composite for Effective Biosorption of Ni (II) from Aqueous Solution. Z PHYS CHEM 2020. [DOI: 10.1515/zpch-2019-1555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present study, a novel biosorbent clay composite, based on carboxymethyl-chitosan/sodium alginate grafted with amino-carbamate moiety/bentonite clay (CA-CMC/Bt) was prepared. The produced sorbent was conditioned in the form of hydrogel beads by ionotropic gelation with Ca(II) ions, and thoroughly characterized using FTIR, XRF, XRD, SEM and zeta potential measurements. FTIR and SEM confirmed the successful grafting and intercalation of clay mineral into modified biopolymer. Hydrogel beads were observed to be very integrated and stable under a wide pH working range (from 2.0 to 12.0). CA-CMC/Bt was employed for adsorptive remediation of Ni(II) from aqueous media. Sorption process was found as a function of various parameters such as sorbent dosage, contact time, pH and initial concentration. Kinetic data could be well explained by pseudo second order rate equation (PSORE), suggesting that complexation or valence forces are playing significant role in the uptake of Ni(II) ions. Isothermal sorption data was analysed using different sorption models such as Langmuir, Freundlich and Sips. Data was well fitted with Langmuir and Sips model, maximum monolayer sorption capacity (qm) was calculated (by non-linear fitting of data) as 159 mg/g at 298 K and pH 5.5. Separation factor (RL) was found as 0 < RL < 1 which indicated favourable sorption. Thermodynamic parameters i.e. ΔGo, ΔHo and ΔSo were quantified and patterned the sorption process as exothermic, spontaneous with increase in system entropy. CA-CMC/Bt was found cost-effective, efficient and reusable material in Ni(II) competitive recovery.
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Affiliation(s)
- Hamza Shehzad
- Institute of Chemistry, University of the Punjab , Lahore-54590 , Pakistan
| | - Ejaz Ahmed
- Institute of Chemistry, University of the Punjab , Lahore-54590 , Pakistan
| | - Muhammad Imran Din
- Institute of Chemistry, University of the Punjab , Lahore-54590 , Pakistan
| | - Zahoor H. Farooqi
- Institute of Chemistry, University of the Punjab , Lahore-54590 , Pakistan
| | - Muhammad Arshad
- Institute of Chemistry, University of the Punjab , Lahore-54590 , Pakistan
| | - Ahsan Sharif
- Institute of Chemistry, University of the Punjab , Lahore-54590 , Pakistan , Fax: +92-42-99231269
| | - Limin Zhou
- State Key Laboratory for Nuclear Resources and Environment, East China University of Technology , 418 Guanglan Road, 330013 Nanchang, PR China
| | - Wang Yun
- State Key Laboratory for Nuclear Resources and Environment, East China University of Technology , 418 Guanglan Road, 330013 Nanchang, PR China
| | - Rumaisa Umer
- Institute of Chemistry, University of the Punjab , Lahore-54590 , Pakistan
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Liu X, Jiang W, Gou S, Ye Z, Luo C. Synthesis and clay stabilization of a water-soluble copolymer based on acrylamide, modular β-cyclodextrin, and AMPS. J Appl Polym Sci 2012. [DOI: 10.1002/app.38558] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Tunç S, Duman O, Çetinkaya A. Electrokinetic and rheological properties of sepiolite suspensions in the presence of hexadecyltrimethylammonium bromide. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.12.036] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tunç S, Duman O, Uysal R. Electrokinetic and rheological behaviors of sepiolite suspensions in the presence of poly(acrylic acid sodium salt)s, polyacrylamides, and poly(ethylene glycol)s of different molecular weights. J Appl Polym Sci 2008. [DOI: 10.1002/app.28245] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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