Application of magnetic chitosan composites for the removal of toxic metal and dyes from aqueous solutions
01 Dec 2013-Advances in Colloid and Interface Science (Adv Colloid Interface Sci)-Vol. 201, pp 68-93
TL;DR: This review outlines the preparation of MCCs as well as methods to characterize these materials using FTIR, XRD, TGA and other microscopy-based techniques to show their advantages as adsorbents in the treatment of polluted aqueous solutions.
About: This article is published in Advances in Colloid and Interface Science.The article was published on 2013-12-01. It has received 579 citations till now.
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TL;DR: An overview of biochar production technologies, biochar properties, and recent advances in the removal of heavy metals, organic pollutants and other inorganic pollutants using biochar is provided.
1,301 citations
Cites background from "Application of magnetic chitosan co..."
...These kinetic models provide the valuable information which controlled the adsorption process involving adsorbent surface, chemical reaction, and/or diffusion mechanisms (Reddy and Lee, 2013)....
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TL;DR: This review presents the recent research, trends and prospects in chitosan and some special pharmaceutical and biomedical applications are also highlighted.
Abstract: Chitosan is a natural polycationic linear polysaccharide derived from chitin. The low solubility of chitosan in neutral and alkaline solution limits its application. Nevertheless, chemical modification into composites or hydrogels brings to it new functional properties for different applications. Chitosans are recognized as versatile biomaterials because of their non-toxicity, low allergenicity, biocompatibility and biodegradability. This review presents the recent research, trends and prospects in chitosan. Some special pharmaceutical and biomedical applications are also highlighted.
851 citations
Cites background from "Application of magnetic chitosan co..."
...These materials are mainly applied in bone tissue engineering scaffold [29], drug delivery system [30], wound healing materials [31] and metal and dye absorbent for polluted water [32]....
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TL;DR: In this article, the authors provide up-to-date information about the most important features of chitosan based adsorbents that may be helpful for synthesizing better adsorption property of modified chitosa and promoting its applications for heavy metal contaminate removal.
601 citations
TL;DR: Spinel ferrite (SF) magnetic materials are an important class of composite metal oxides containing ferric ions and having the general structural formula M 2+ Fe 2 3+ O 4.
523 citations
TL;DR: The influence of structural elements of the chitosan-based flocculants on their flocculation properties are emphasized in this review by examining different flocculations mechanisms and their applications in the treatment of various wastewaters containing different pollutants.
486 citations
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TL;DR: In this paper, it was shown that the rate of adsorption of persistent organic compounds on granular carbon is quite low and the rate is partially a function of the pore size distribution of the adsorbent, of the molecular size and configuration of the solute, and of the relative electrokinetic properties of adsorbate and adsorbents.
Abstract: Laboratory investigations show that rates of adsorption of persistent organic compounds on granular carbon are quite low. Intraparticle diffusion of solute appears to control the rate of uptake, thus the rate is partially a function of the pore size distribution of the adsorbent, of the molecular size and configuration of the solute, and of the relative electrokinetic properties of adsorbate and adsorbent. Systemic factors such as temperature and pH will influence the rates of adsorption; rates increase with increasing temperature and decrease with increasing pH. The effect of initial concentration of solute is of considerable significance, the rate of uptake being a linear function of the square-root of concentration within the range of experimentation. Relative reaction rates also vary reciprocally with the square of the diameter of individual carbon particle for a given weight of carbon. Based on the findings of the research, fluidized-bed operation is suggested as an efficient means of using adsorption for treatment of waters and waste waters.
7,115 citations
"Application of magnetic chitosan co..." refers methods in this paper
...Nevertheless, three most popular kinetic models have been widely used to study the adsorption of metal and dyes using magnetic chitosan materials: (i) the pseudo-first-order kinetic model [194,195]; (ii) the pseudosecond-order kinetic model [195–197]; and (iii) the intra-particle diffusion model [198]....
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6,913 citations