Solid phase extraction and removal of 2, 4-dichlorophenol from aqueous samples using magnetic graphene nanocomposite. Issue 9 (12th June 2016)

• Record Type: Journal Article
• Authors: Shah, Jasmin; Rasul Jan, Md.; Zeeshan, Md.; Iqbal, Mehwish
• Is Part Of: Separation science and technology. Volume 51:Issue 9(2016)
• Page Start: 1480
• Page End: 1489
• Publication Date: 2016-06-12
• Subjects: 2, 4-Dichlorophenol -- magnetic graphene nanocomposite -- preconcentration -- solid phase extraction; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2016.1165700
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: A magnetic graphene nanocomposite (Fe3 O4 -GNC) was prepared and used for the solid phase extraction (SPE) and removal of 2, 4-dichlorophenol from aqueous solutions. The physicochemical properties were investigated using SEM, EDX, FTIR, and TGA. Different factors affecting sorption capacity were studied systematically. Results for kinetics studies revealed that 2, 4-dichlorophenol sorption followed pseudo-second-order kinetics and the q e value (987.45 mg/g) was in close agreement with experimental value (1000 mg/g). Thermodynamic study showed that the sorption is endothermic (∆ H º = +56.116 kJ/mol) and spontaneous. The desorption studies were carried out for the reusability and extraction of 2, 4-dichlorophenol from aqueous samples and 94% recoveries were obtained. The method was found feasible for the removal and preconcentration of trace analysis of 2, 4-dichlorophenol in environmental water samples.