Chitosan-Guar gum blend silver nanoparticle bionanocomposite with potential for catalytic degradation of dyes and catalytic reduction of nitrophenol

Vanaamudan, Ageetha; Sadhu, Mohini; Pamidimukkala, Padmaja

doi:10.1016/j.molliq.2018.08.136

Cited by 86 publications

(9 citation statements)

References 24 publications

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“…Substitution limited the formation of stronger gels, thus resulting in weaker gel formation. Lowest LGC was observed for GG-1 samples, which were attributed to high molecular weight [46][47][48].…”

Section: Swelling Index and Gelation Study Of Guar Gum Estersmentioning

confidence: 91%

Green and Environmentally Friendly Techniques for Enhanced Physicochemical Characteristics Attributed to Polysaccharides for Industrial Applications

Iqbal¹,

Hussain²,

Bukhari³

et al. 2020

Pol. J. Environ. Stud.

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Guar esters of long-chain aliphatic carboxylic acids (fatty acid) were prepared and examined. Esterification was done in two steps, with the first goal to prepare acid chloride by refluxing acid with slight excess of thionyl chloride, and the product was confirmed by elemental analysis. Ten different types of fatty acid (C 5 -C 18 ) were used for derivatization. The reaction mechanism for synthesis of fatty acid ester of guar was studied in detail. Physical properties of the esters were examined as well. The degree of substitution was calculated by titration method and structure elucidation was done using Fourier transform infrared spectroscopy (FTIR), proton-nuclear magnetic resonance ( 1 H-NMR) and scanning electron microscopy (SEM) techniques.

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Section: Swelling Index and Gelation Study Of Guar Gum Estersmentioning

confidence: 91%

Green and Environmentally Friendly Techniques for Enhanced Physicochemical Characteristics Attributed to Polysaccharides for Industrial Applications

Iqbal¹,

Hussain²,

Bukhari³

et al. 2020

Pol. J. Environ. Stud.

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“…The dye adsorption was found to follow Langmuir model [5]. Vanaamudan et.al., [6] studied chitosan-guar gum blend loaded with silver nanoparticles and used it for catalytic degradation of dyes. The catalyst could be used up to three cycles.…”

Section: Removal Of Crystal Violet Dye Using Grafted Guar Gum Along W...mentioning

confidence: 99%

Removal of crystal violet dye using grafted guar gum along with nanoclay and MWCNT

et al. 2022

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“…For example, starch may incorporate metals or metal oxide, thus forming polymeric nanocomposites. Chitosan is also used for nanotechnologyrelated applications due to its wide compatibility (Vanaamudan et al 2018;Morin-Crini et al 2019). Silver (Ag) can be incorporated within starch in a supramolecular way to form nanomaterials (Raveendran et al 2003).…”

Section: Synthesis Of Biopolymeric Nanomaterialsmentioning

confidence: 99%

Green polymeric nanomaterials for the photocatalytic degradation of dyes: a review

et al. 2020

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Pure and drinkable water will be rarer and more expensive as the result of pollution induced by industrialisation, urbanisation and population growth. Among the numerous sources of water pollution, the textile industry has become a major issue because effluents containing dyes are often released in natural water bodies. For instance, about two years are needed to biodegrade dye-derived, carcinogenic aromatic amines, in sediments. Classical remediation methods based upon physicochemical reactions are costly and still generate sludges that contain amine residues. Nonetheless, recent research shows that nanomaterials containing biopolymers are promising to degrade organic pollutants by photocatalysis. Here, we review the synthesis and applications of biopolymeric nanomaterials for photocatalytic degradation of azo dyes. We focus on conducting biopolymers incorporating metal, metal oxide, metal/metal oxide and metal sulphide for improved biodegradation. Biopolymers can be obtained from microorganisms, plants and animals. Unlike fossil-fuel-derived polymers, biopolymers are carbon neutral and thus sustainable in the context of global warming. Biopolymers are often biodegradable and biocompatible.

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Chitosan-Guar gum blend silver nanoparticle bionanocomposite with potential for catalytic degradation of dyes and catalytic reduction of nitrophenol

Cited by 86 publications

References 24 publications

Green and Environmentally Friendly Techniques for Enhanced Physicochemical Characteristics Attributed to Polysaccharides for Industrial Applications

Green and Environmentally Friendly Techniques for Enhanced Physicochemical Characteristics Attributed to Polysaccharides for Industrial Applications

Removal of crystal violet dye using grafted guar gum along with nanoclay and MWCNT

Green polymeric nanomaterials for the photocatalytic degradation of dyes: a review

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