Record Details

Nanocrystalline cellulose for removal of tetracycline hydrochloride from water via biosorption: Equilibrium, kinetic and thermodynamic studies

IR@CSIR-NEERI

View Archive Info
 
 
Field Value
 
Title Nanocrystalline cellulose for removal of tetracycline hydrochloride from water via biosorption: Equilibrium, kinetic and thermodynamic studies
 
Creator Rathod, Manali
Haldar, Soumya
Shaik, Basha
 
Subject Industrial Wastewater Treatment & Disposal
Chemistry, Chemical Technology
 
Description tCrystalline nanocellulose, synthesized from green seaweed, Ulva lactuca, was investigated for the sorptionof tetracycline hydrochloride (TC) from aqueous solutions. The effects of pH, contact time, concentra-tion of TC and desorption were studied in batch mode. The kinetics of TC biosorption was very fastand reached equilibrium in almost 2 h. The kinetic data was well described by double exponentialand the pseudo-second-order kinetic models. Film diffusion is the rate-limiting step for the biosorp-tion of TC on to crystalline nanocellulose. Both Redlich–Peterson (R–P) and Polanyi–Manes (P–M)isotherm models described the equilibrium data well. The values of maximum sorption capacities(6.48–7.73 mg/g for R–P and 6.57–7.96 mg/g for P–M models) increased with temperature. A ther-modynamic study (�H◦= 22.64 kJ/mol, �S◦= 9.85 kJ/(mol/K)) demonstrated that biosorption of TC isspontaneous, endothermic and an entropy-driven process. The reusability of sorbent was achieved byHNO3(5 w/w%) with desorption efficiency of 95.20% in 4 h. The overall results have significant implica-tions for the removal of TC from aqueous solution with crystalline nanocellulose.
 
Publisher Elsevier
 
Date 2015-09-04
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/559/1/Ecol%20Eng_MR.pdf
Rathod, Manali and Haldar, Soumya and Shaik, Basha (2015) Nanocrystalline cellulose for removal of tetracycline hydrochloride from water via biosorption: Equilibrium, kinetic and thermodynamic studies. Ecological Engineering, 84. pp. 240-249. ISSN 0925-8574
 
Relation http://www.elsevier.com/locate/ecoleng
http://neeri.csircentral.net/559/