PMID- 25957848 OWN - NLM STAT- MEDLINE DCOM- 20160422 LR - 20181202 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 121 DP - 2015 Nov TI - Synthesis of magnetic biocomposite for efficient adsorption of azo dye from aqueous solution. PG - 149-53 LID - S0147-6513(15)00194-3 [pii] LID - 10.1016/j.ecoenv.2015.04.037 [doi] AB - A novel magnetic biocomposite was synthesized using metal chlorides and aquatic macrophytes by co-precipitation method. The resulting product, magnetic biocomposite was characterized by Fourier transform infrared spectra (FTIR), X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDX) and Scanning electron microscope (SEM). The adsorption performance of the magnetic biocomposite was tested with removal of Metanil Yellow dye from aqueous solution. The effect of influencing parameters such as initial dye concentration, solution pH and agitation were investigated. The equilibrium isotherm was well described by the Langmuir model with the with maximum adsorption capacity of 90.91mg/g. Adsorption kinetics experiments were carried out and the data were well fitted by a pseudo-second-order equation. The results revealed that the magnetic biocomposite could efficiently adsorb the azo dyes from aqueous solution, and the spent adsorbents could be recovered completely by magnetic separation process. Therefore, the prepared magnetic biocomposite could thus be used as promising adsorbent for the removal of azo dyes from polluted water. CI - Copyright (c) 2015 Elsevier Inc. All rights reserved. FAU - Sivashankar, R AU - Sivashankar R AD - Department of Chemical Engineering, National Institute of Technology Calicut, 673601, India. FAU - Sathya, A B AU - Sathya AB AD - Department of Chemical Engineering, National Institute of Technology Calicut, 673601, India. FAU - Krishnakumar, Uma AU - Krishnakumar U AD - Department of Chemical Engineering, National Institute of Technology Calicut, 673601, India. FAU - Sivasubramanian, V AU - Sivasubramanian V AD - Department of Chemical Engineering, National Institute of Technology Calicut, 673601, India. Electronic address: siva@nitc.ac.in. LA - eng PT - Journal Article DEP - 20150507 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - 0 (Azo Compounds) RN - 0 (Coloring Agents) RN - 0 (Ferric Compounds) RN - 0 (Manganese Compounds) RN - 0 (Solutions) RN - 0 (Water Pollutants, Chemical) RN - 0 (manganese ferrite) RN - 7SPF5O5BW8 (metanil yellow) SB - IM MH - Adsorption MH - Azo Compounds/chemistry/*isolation & purification MH - Coloring Agents/chemistry/*isolation & purification MH - Ferric Compounds/*chemistry MH - Kinetics MH - *Magnetics MH - Manganese Compounds/*chemistry MH - Models, Theoretical MH - Seaweed/*chemistry MH - Solutions MH - Spectroscopy, Fourier Transform Infrared MH - Water Pollutants, Chemical/chemistry/*isolation & purification MH - Water Purification/methods MH - X-Ray Diffraction OTO - NOTNLM OT - Adsorption OT - Azo dyes OT - Magnetic biocomposites OT - Magnetic separation EDAT- 2015/05/11 06:00 MHDA- 2016/04/23 06:00 CRDT- 2015/05/11 06:00 PHST- 2014/10/24 00:00 [received] PHST- 2015/04/20 00:00 [revised] PHST- 2015/04/27 00:00 [accepted] PHST- 2015/05/11 06:00 [entrez] PHST- 2015/05/11 06:00 [pubmed] PHST- 2016/04/23 06:00 [medline] AID - S0147-6513(15)00194-3 [pii] AID - 10.1016/j.ecoenv.2015.04.037 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2015 Nov;121:149-53. doi: 10.1016/j.ecoenv.2015.04.037. Epub 2015 May 7.