scholarly journals Development of gum acacia based magnetic nanocomposite adsorbent for wastewater treatment

2021 ◽  
Author(s):  
Prajwal Kulal ◽  
Preetha B. Krishnappa ◽  
Vishalakshi Badalamoole
Keyword(s):  
Wastewater Treatment ◽  
Magnetic Nanocomposite ◽  
Gum Acacia ◽  
Nanocomposite Adsorbent

scholarly journals Magnetic Nanocomposite Material Containing Chitosan Polymer Used in Wastewater Depollution Processes

2021 ◽  
Vol 57 (4) ◽  
pp. 70-76
Author(s):  
Cristina Ileana Covaliu ◽  
Ecaterina Matei ◽  
Oana Stoia ◽  
Gigel Paraschiv
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Nanocomposite Material ◽  
Magnetic Nanocomposite ◽  
Lead Ions ◽  
Treatment Efficiency ◽  
Experimental Conditions ◽  
Nanocomposite Adsorbent ◽  
Chitosan Composite

The aim of this paper was to present the synthesis, characterization and application of the Fe3O4 - chitosan composite as potential adsorbent for removing lead ions from industrial wastewater. The nanocomposite nanomaterial was characterized by XRD and SEM analyzes. The influence of some parameters (pH of wastewater, lead ions concentration and dose of Fe3O4 - chitosan absorbent) upon the efficiency of wastewater treatment were investigated. The Pb (II) ions concentrations in wastewater were 0.5, 1, 1.5 and 2 mg/L. The amounts of Fe3O4 - chitosan nanocomposite adsorbent tested were 0.05, 0.1 and 0.2 g. In some experimental conditions, Fe3O4 - chitosan nanocomposite adsorbent leaded to obtaining of 100% wastewater treatment efficiency.

scholarly journals Development of gum acacia based magnetic nanocomposite adsorbent for wastewater treatment

2021 ◽  
Author(s):  
Prajwal Kulal ◽  
Preetha B. Krishnappa ◽  
Vishalakshi B
Keyword(s):  
Wastewater Treatment ◽  
Surface Area ◽  
Magnetite Nanoparticles ◽  
Low Cost ◽  
The Novel ◽  
Gum Acacia ◽  
Magnetic Hydrogel ◽  
Potential Binding ◽  
Pseudo Second Order ◽  
Nanocomposite Adsorbent

Abstract Adsorbents fabricated on polysaccharides have captivated growing attention in water treatment owing to their low-cost and biodegradability. Modification of polysaccharides by incorporation of functional groups with potential binding ability towards pollutants is a good strategy to develop adsorbent materials. Imparting magnetic property to the materials facilitates easy separation of the adsorbent after use. The present work reports development of a magnetic hydrogel adsorbent material based on the polysaccharide, gum acacia. The graft copolymer nanocomposite hydrogel of gum acacia and poly(3-chloro-2-hydroxypropylmethacrylate) containing magnetite nanoparticles has been prepared using microwave assisted technique and evaluated as adsorbent for sequestration of cationic dyes and metal ions from aqueous solutions. The FTIR, XRD, SEM, TGA, VSM and BET studies have been performed to characterize the sample. The nanocomposite displayed super-paramagnetic nature owing to the existence of magnetite nanoparticles. The presence of magnetite nanoparticles is observed to influence the adsorption characteristics favourably as evident from the comparative studies performed with the non-magnetic parent gel. It exhibited larger surface area of 2.524 m2g− 1 compared to the parent hydrogel with surface area of 0.481 m2g− 1. The adsorption capability of the parent hydrogel towards methylene blue, rhodamine 6G, Cu(II) and Hg(II) are 224.4, 283.5, 282.4 and 275.3 mgg− 1 respectively are enhanced to 265.2, 344.4, 307.5 and 292.8 mgg− 1 respectively in the case of nanocomposite. The adsorption isotherm and kinetic data fitted well with Freundlich and pseudo second order model respectively. Desorption studies indicated excellent reusability characteristics of the novel adsorbent developed, indicating its potential use in wastewater treatment.

Fabrication of a Lignin-Based Magnetic Nanocomposite Adsorbent to Recover Phosphorus in Water for Agricultural Reuse

2021 ◽  
Author(s):  
Tiantian Li ◽  
Zhaohui Tong ◽  
Qingzhu Zheng ◽  
Hanxi Bao ◽  
Arianna Partow ◽  
...  
Keyword(s):  
Magnetic Nanocomposite ◽  
Nanocomposite Adsorbent

Copper (II) removal by pectin–iron oxide magnetic nanocomposite adsorbent

2012 ◽  
Vol 185-186 ◽  
pp. 100-107 ◽  
Author(s):  
Ji-Lai Gong ◽  
Xi-Yang Wang ◽  
Guang-Ming Zeng ◽  
Long Chen ◽  
Jiu-Hua Deng ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanocomposite ◽  
Nanocomposite Adsorbent

Efficient oil removal from wastewater based on polymer coated superhydrophobic tetrapodal magnetic nanocomposite adsorbent

2019 ◽  
Vol 17 ◽  
pp. 130-141 ◽  
Author(s):  
Mahima Sharma ◽  
Monika Joshi ◽  
Subhasha Nigam ◽  
Devesh Kumar Avasthi ◽  
Rainer Adelung ◽  
...  
Keyword(s):  
Magnetic Nanocomposite ◽  
Oil Removal ◽  
Nanocomposite Adsorbent
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