Removal of fluoride from aqueous solution by polypyrrole/Fe3O4 magnetic nanocomposite

2011 ◽  
Vol 186 (1) ◽  
pp. 150-159 ◽  
Author(s):  
Madhumita Bhaumik ◽  
Taile Yvonne Leswifi ◽  
Arjun Maity ◽  
V.V. Srinivasu ◽  
Maurice S. Onyango
Keyword(s):  
Aqueous Solution ◽  
Magnetic Nanocomposite

Efficient sorption of Pb(ii) from an aqueous solution using a poly(aniline-co-3-aminobenzoic acid)-based magnetic core–shell nanocomposite

2016 ◽  
Vol 40 (3) ◽  
pp. 2521-2529 ◽  
Author(s):  
Ehsan Nazarzadeh Zare ◽  
Moslem Mansour Lakouraj ◽  
Atefeh Ramezani
Keyword(s):  
Aqueous Solution ◽  
Water Treatment ◽  
Magnetic Core ◽  
Magnetic Nanocomposite ◽  
Core Shell ◽  
Aminobenzoic Acid ◽  
Treatment Processes ◽  
Poly Aniline

We propose that the PA3ABA@Fe3O4 core–shell magnetic nanocomposite is an appropriate candidate for water treatment processes.

Synthesis of magnetic graphene oxide-containing nanocomposite hydrogels for adsorption of crystal violet from aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32263-32271 ◽  
Author(s):  
Ali Pourjavadi ◽  
Mojtaba Nazari ◽  
Seyed Hassan Hosseini
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Crystal Violet ◽  
Magnetic Nanocomposite ◽  
Magnetic Graphene Oxide ◽  
Nanocomposite Hydrogels ◽  
Magnetic Graphene ◽  
Vis Spectroscopy

Magnetic nanocomposite hydrogels containing different amounts of graphene oxide were synthesized and characterized by FTIR, XRD, TGA, SEM, TEM, VSM and UV-vis spectroscopy.

Highly stable and covalently functionalized magnetic nanoparticles by polyethyleneimine for Cr(vi) adsorption in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1398-1405 ◽  
Author(s):  
Bo Chen ◽  
Xuesong Zhao ◽  
Yang Liu ◽  
Bugang Xu ◽  
Xuejun Pan
Keyword(s):  
Aqueous Solution ◽  
Magnetic Nanoparticles ◽  
Magnetic Nanocomposite ◽  
Functionalized Magnetic Nanoparticles

Covalently functionalized magnetic nanocomposite by polyethyleneimine (PEI) acted as superior adsorbent for removal of Cr(vi) form water.

Preparation and Characterization of a Graphene-Based Magnetic Nanocomposite for the Adsorption of Lanthanum Ions from Aqueous Solution

2020 ◽  
Vol 53 (11) ◽  
pp. 1812-1833 ◽  
Author(s):  
Alparslan Enes Oral ◽  
Sule Aytas ◽  
Sabriye Yusan ◽  
Senol Sert ◽  
Cem Gok ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Nanocomposite ◽  
Lanthanum Ions

Magnetic nanocomposite of activated charcoal for removal of Congo red dye

2016 ◽  
Vol 27 (1) ◽  
pp. 45-58 ◽  
Author(s):  
Baskar Gurunathan ◽  
Dhanusree Viswanathan ◽  
Shravanthi Rajasekar ◽  
Garrick Bikku George
Keyword(s):  
Aqueous Solution ◽  
Activated Charcoal ◽  
Congo Red ◽  
Magnetic Nanocomposite ◽  
Batch Adsorption ◽  
Content Type ◽  
Congo Red Dye ◽  
Eds Analysis ◽  
Average Size ◽  
Red Dye

Purpose – The purpose of this paper is to focus on the removal of Congo red dye from aqueous solution using magnetically separable novel adsorbent prepared by coating activated charcoal on magnetic nanoparticles. Design/methodology/approach – The synthesized magnetic nanocomposite of activated charcoal was characterized using Fourier transform infra-red (FTIR), scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) analysis. The removal of Congo red from aqueous solution using magnetic nanocomposite of activated charcoal was optimized. The equilibrium and kinetics modeling of adsorption of Congo red was analyzed. Findings – The presence of activated charcoal on magnetic nanocomposite was confirmed by FTIR analysis. The average size of the nanocomposite was found to be 12.77 nm using SEM characterization. The elemental composition by EDS analysis confirmed the increase in concentration of carbon due the adsorption of Congo red dye. The optimum conditions for batch adsorption was found to be 1 g/L of adsorbent, dye concentration 50 mg/L, pH 3 and temperature 70°C. The adsorption of Congo red dye on magnetic nanocomposite of activated charcoal was found to follow Temkin adsorption isotherm. Originality/value – The experimental data were found to fit well with the pseudo second-order kinetics and the rate of adsorption was found to be controlled by intra-particle diffusion.

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