Research Progress of Chitosan Supported Copper Catalyst in Organic Reactions

Zhang, Yaoyao; Zhou, Lijie; Han, Biao; Li, Weishuang; Li, Bojie; Zhu, Lei

doi:10.6023/cjoc202107066

Cited by 3 publications

(2 citation statements)

References 75 publications

(46 reference statements)

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“…Chitosan, a well-known polysaccharide, is composed of d -glucosamine and N -acetyl- d -glucosamine connected by a β-1-4-glycosidic bond. Notably, chitosan is a flexible biopolymer that is derived from chitin by a process of alkaline deacetylation and can be used as a capping agent to stabilize and prepare nanocomposites. , Chitosan is rich with amine and hydroxyl groups, which facilitates possible chemical modification of the substance. , The reactive amine (−NH 2 ) and hydroxyl (OH) groups in chitosan make it an effective sorbent for an array of organic pollutants. − Chitosan is well-known for having vast applications in biomedical, adsorption, purification, and the food packaging sector owing to its unique macromolecular structure, biological activity, biocompatibility, biodegradability, and other intrinsic properties, due to which it has attained significant attention in recent scientific research. − …”

Section: Introductionmentioning

confidence: 99%

“…Notably, chitosan is a flexible biopolymer that is derived from chitin by a process of alkaline deacetylation and can be used as a capping agent to stabilize and prepare nanocomposites. 30 , 31 Chitosan is rich with amine and hydroxyl groups, which facilitates possible chemical modification of the substance. 32 , 33 The reactive amine (−NH 2 ) and hydroxyl (OH) groups in chitosan make it an effective sorbent for an array of organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

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Facile Synthesis of a Crystalline Zinc Sulfide/Chitosan Biopolymer Nanocomposite: Characterization and Application for Photocatalytic Degradation of Textile Dyes and Anticancer Activity

Bhat,

Jadon,

Dubey

et al. 2024

ACS Omega

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In the present study, we have synthesized a zinc sulfide/chitosan (ZS/CS) nanocomposite by utilizing simple, economical, and environmentally friendly methods. The synthesized nanomaterials were characterized by different analytical techniques such as XRD, FE-SEM, EDS, and FTIR to determine the phase structure, morphology, and elemental composition. FTIR spectroscopy was used to confirm the functional groups of the synthesized zinc sulfide (ZS) nanoparticles and ZS/CS composite. Besides, the optical properties of the as-synthesized nanocomposite was analyzed by a UV–visible spectrophotometer, and the estimated band gap energy is ∼3.03 eV. The photocatalytic efficiency of the synthesized ZS/CS nanocomposite was investigated against two textile dyes, Crystal Violet (CV) and Acid Red-I (AR-I), under UV–visible light irradiation. The nanocomposite showed excellent photocatalytic activity against the dyes, and photodegradation was estimated to be about 93.44 and 90.67% for CV and AR-I, respectively. The nanocomposite was reused for three consecutive cycles. The results revealed that the photocatalyst displayed good reusability during the photocatalytic decomposition and thus is considered a cost-effective and promising photocatalyst in degrading dye pollutants. The kinetic study proved that the pseudo-first-order reaction kinetics was followed by the degradation process. We also examined the anticancer activity of ZS and ZS/CS against human breast and myelogenous leukemia cancer cell lines, namely, MCF-7 and K-562, and the half minimal inhibitory concentrations were found to be less than 50 μg/mL.

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