Adsorptive removal of methylene blue from aqueous solution by polyaniline-nickel ferrite nanocomposite: a kinetic approach

Abstract

A B S T R A C TThis work deals with the development of a new efficient method for the removal of methylene blue dye from aqueous solutions by using polyaniline (PANI)-nickel ferrite (NiFe 2 O 4 ) nanocomposite. It is successfully synthesised in situ through self-polymerisation of monomer aniline. Adsorptive removal studies are carried out for water-soluble methylene blue dye using PANI-nickel ferrite nanocomposite in aqueous solutions. Different parameters such as dose of adsorbent, contact time, different initial concentrations and pH have been observed to optimise reaction condition. It is observed that the adsorptive removal by PANI-nickel ferrite nanocomposite is good comparable with other method for removing methylene blue dye from aqueous solutions. The optimum conditions for the removal of the dye are initial concentration 40 mg/L, adsorbent dose 8 g/L and pH 9. The adsorption capacity is found to be 6.65 mg/g. The adsorption followed pseudo-second-order kinetics. The experimental isotherm is analysed with Freundlich and Langmuir equations. Desorption experiment was performed for recycle and reused study of nanocomposite. The characterisation of prepared adsorbent has been done by techniques such as SEM, XRD and EDS.

Synthesis and Characterization of Magnetic CoFe1.9Cr0.1O4 Nanoparticles by Sol-gel Method and Their Applications as an Adsorbent for Water Treatment

“…Furthermore, the maximum adsorbed amount of MB ( max ) is found to be 11.41 mg/g. This value is higher than the value (3.31 mg/g) that reported by Patil et al [34] for MB adsorption using an adsorbent composed of polyanilinespinel ferrite (PANI-NiFe2O4) and lower than the value (40.97 mg/g) obtained using Mn0.2Zn0.8Fe2O4 as an adsorbent as reported by Hou et al [15]. In addition, the calculated values within the initial concentration range of 25-55 mg/L were less than unity (0.59-0.39), indicating the favourability of the adsorption of MB onto CFC nanoparticles [24].…”

Nanocrystalline-modified nickel ferrite films: an effective sensor for industrial and environmental gas pollutant detection

“…Material science becomes a promising field of nanoscience, due its remarkable applications in the research. It covers wide range of research applications such as sensors [1][2][3], adsorption, photocatalysis, biosensors, solar cells, conducting material, drug distribution, photovoltaic, medicinal, agricultural and catalytical applications, sultriness sensors [4][5][6][7][8][9][10].Nowadays, enormous incrimination in the level of pollution and industrial hazards is the major threat for environment. The evolution of toxic substances and gases from industries as well as from conveyances are the major sources of pollutant gases.…”

Study of physico-chemical properties, detection and toxicity study of organic compounds from effluent of MIDC Thane and GIDC Ankleshwar industrial zone

“…This waste water indiscriminately flowed in the water streams lead to an inception of water pollution imperceptibly (Ouasif et al 2013). Most of the researchers worked on this type of serious issue and published their view and facts related to waste water from these industrial zones (Patil and Shrivastava 2016).…”