pH-tunable surface charge of chitosan/graphene oxide composite adsorbent for efficient removal of multiple pollutants from water

Yan, Han; Yang, Hu; Li, Aimin; Cheng, Rongshi

doi:10.1016/j.cej.2015.06.030

Cited by 131 publications

(39 citation statements)

References 45 publications

(88 reference statements)

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“…Carbon-based nanomaterials, such as CNT, graphene, and graphene oxide have been well-studied. Incorporation of graphene oxide into chitosan improves the mechanical properties of chitosan in addition to enhancing its antimicrobial and pollutant removal abilities [88,89]. Chitosan being a biocompatible polymer has been applied to improve the solubility of CNT and reduce its toxicity to facilitate practical applications (Table 1) [90].…”

Section: Chitosan-carbon Materialsmentioning

confidence: 99%

Chitosan Nanocomposite Coatings for Food, Paints, and Water Treatment Applications

et al. 2019

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Worldwide, millions of tons of crustaceans are produced every year and consumed as protein-rich seafood. However, the shells of the crustaceans and other non-edible parts constituting about half of the body mass are usually discarded as waste. These discarded crustacean shells are a prominent source of polysaccharide (chitin) and protein. Chitosan is a de-acetylated form of chitin obtained from the crustacean waste that has attracted attention for applications in food, biomedical, and paint industries due to its characteristic properties, like solubility in weak acids, film-forming ability, pH-sensitivity, biodegradability, and biocompatibility. We present an overview of the application of chitosan in composite coatings for applications in food, paint, and water treatment. In the context of food industries, the main focus is on fabrication and application of chitosan-based composite films and coatings for prolonging the post-harvest life of fruits and vegetables, whereas anti-corrosion and self-healing properties are the main properties considered for antifouling applications in paints in this review.

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Section: Chitosan-carbon Materialsmentioning

confidence: 99%

Chitosan Nanocomposite Coatings for Food, Paints, and Water Treatment Applications

et al. 2019

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“…In contrast, the Freundlich isotherm model is based on the assumption that different types of adsorption sites are available on the surface, resulting in multilayer heterogeneous adsorptions. 47 The Langmuir and Freundlich isotherm models can be expressed as eqn (6) and 7, 48 respectively:…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Polymer-grafted magnetic microspheres for enhanced removal of methylene blue from aqueous solutions

Zheng

et al. 2017

RSC Adv.

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“…CS, a natural, low cost biomaterial, contains many active hydroxyl and amino functional groups on its backbone chain [ 48 ]. CS has been widely applied as a model polymer because of its excellent biocompatibility, biodegradability, antibacterial properties and adsorption capacity for contaminants [ 48 , 49 , 50 , 51 , 52 ]. One of the applications of CS that has attracted considerable interests is its role as an antibacterial agent.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Bactericidal Evaluation of Chitosan/Guanidine Functionalized Graphene Oxide Composites

Gao

Sun

et al. 2016

Molecules

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In response to the wide spread of microbial contamination induced by bacterial pathogens, the development of novel materials with excellent antibacterial activity is of great interest. In this study, novel antibacterial chitosan (CS) and polyhexamethylene guanidine hydrochloride (PHGC) dual-polymer-functionalized graphene oxide (GO) (GO-CS-PHGC) composites were designed and easily fabricated. The as-prepared materials were characterized by Fourier transform infrared (FTIR), X-ray photoelectron spectrometer (XPS), field emission scanning electron microscopy (FE-SEM), transmission electron microscope (TEM), thermogravimetric analysis (TGA) and Raman spectroscopy. Their antibacterial capability towards bacterial strains was also studied by incubating both Gram-negative bacteria and Gram-positive bacteria in their presence. More significantly, the synergistic antibacterial action of the three components was assayed, and the findings implied that the as-prepared GO-CS-PHGC shows enhanced antibacterial activity when compared to its single components (GO, CS, PHGC or CS-PHGC) and the mixture of individual components. Not only Gram-negative bacteria but also Gram-positive bacteria are greatly inhibited by GO-CS-PHGC composites. The minimum inhibitory concentration (MIC) value of GO-CS-PHGC against E. coli was 32 μg/mL. With the powerful antibacterial activity as well as its low cost and facile preparation, GO-CS-PHGC has potential applications as a novel antibacterial agent in a wide range of biomedical uses.

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pH-tunable surface charge of chitosan/graphene oxide composite adsorbent for efficient removal of multiple pollutants from water

Cited by 131 publications

References 45 publications

Chitosan Nanocomposite Coatings for Food, Paints, and Water Treatment Applications

Chitosan Nanocomposite Coatings for Food, Paints, and Water Treatment Applications

Polymer-grafted magnetic microspheres for enhanced removal of methylene blue from aqueous solutions

Synthesis, Characterization, and Bactericidal Evaluation of Chitosan/Guanidine Functionalized Graphene Oxide Composites

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