Removal of Cu (II) ion from water using sugar cane bagasse cellulose and gelatin based composite hydrogels

Maity, Jayabrata; Ray, S. K.

doi:10.1016/j.ijbiomac.2017.01.011

Cited by 52 publications

(18 citation statements)

References 41 publications

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“…Figure 1 b displays the gelatin’s X-ray diffractogram, showing a dominant peak amply widened at 20.08°, which is characteristic of amorphous materials, indicating that gelatin does not have a periodic structure, given that it comprised of proteins with different structures [ 32 ].…”

Section: Resultsmentioning

confidence: 99%

Development of Antimicrobial Biocomposite Films to Preserve the Quality of Bread

2018

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This study focused on the development of gelatin-based films with incorporation of microcrystalline cellulose as reinforcement material. Clove (Syzygium aromaticum), nutmeg (Myristica fragrans), and black pepper (Piper nigrum) oleoresins containing antimicrobial compounds of natural origin were incorporated into the films. The mechanical, thermal, optical, and structural properties, as well as color, seal strength and permeability to water vapor, light, and oil of the films were determined. Adding oleoresins to the gelatin matrix increased the elongation of the material and significantly diminished its permeability to water vapor and oil. Evaluation of the potential use of films containing different oleoresins as bread packaging material was influenced by the film properties. The biocomposite film containing oleoresin from black pepper was the most effective packaging material for maintaining bread’s quality characteristics.

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Section: Resultsmentioning

confidence: 99%

Development of Antimicrobial Biocomposite Films to Preserve the Quality of Bread

2018

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“…It is essential to mention that the composite hydrogel resisted higher temperatures in contrast to the individual polysaccharides. Most of the previously reported composite hydrogels, such as cellulose/gelatin ( Maity and Ray, 2017 ) and glucan/chitosan composite hydrogel ( Jiang et al, 2019 ), followed a similar three-step degradation pattern.…”

Section: Resultsmentioning

confidence: 85%

Green Synthesis of pH-Responsive, Self-Assembled, Novel Polysaccharide Composite Hydrogel and Its Application in Selective Capture of Cationic/Anionic Dyes

Srivastava

Choudhury

2021

Front. Chem.

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Dyes are one of the most hazardous chemicals causing significant environmental pollution and affecting water quality. Majority of the existing methods for dye removal and degradation involve synthetic membranes and use of hazardous chemicals, further resulting in secondary pollution. The present study reports polysaccharide based novel composite hydrogel as biodegradable matrix for pH-responsive selective adsorption of cationic/anionic dyes. This membrane showed pH-responsive adsorption of methyl green (MG) and methyl orange (MO) with similar adsorption equilibrium, i.e., 315 and 276 mg g−1, respectively. Interestingly, selective adsorption at different pH has allowed separation of dye mixtures that holds incredible industrial importance for dyes recovery. The hydrogel matrix was able to completely separate MG, a model cationic dye at neutral pH from the dye mixture whereas, it was possible to remove 60% MO, a model anionic dye at acidic pH. Furthermore, comprehensive isothermal and kinetic studies of adsorption revealed that Freundlich isotherm describing the multilayer coverage and pseudo-second-order kinetics were followed. Thermodynamic studies indicated that the adsorption process was spontaneous and endothermic. In fact, the membrane was reusable for at least ten cycles and exhibited desorption efficiency of 80 and 60% for MO and MG, respectively, which may be further recycled to make the process environmentally sustainable. Overall, this study proposes an inexpensive, simple, biologically safe, and efficient adsorbent material for dye effluent treatment.

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“…One such experiment was recently conducted by Jayabrata Maity and Samit Kumar Ray (2017), where they observed the combined effects of coordination and electrostatic interactions during the removal of Cu 2+ using sugar cane bagasse cellulose and gelatin-based composite hydrogels. Cu 2+ ions formed coordination bonds with N or O atoms, which were sourced from -NH 2 and -OH functional groups, respectively [143]. Tang et al [54] also observed coordination interactions between metal ions and the O atoms (from -OH group) during the removal of Hg 2+ , Pb 2+ , and Cu 2+ using chitin/cellulose composite (3:1) adsorbent.…”

Section: Coordination Interactionsmentioning

confidence: 99%

Cellulose-Based Hydrogels for Wastewater Treatment: A Concise Review

Akter

Bhattacharjee

Dhar

et al. 2021

Gels

135

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Finding affordable and environment-friendly options to decontaminate wastewater generated with heavy metals and dyes to prevent the depletion of accessible freshwater resources is one of the indispensable challenges of the 21st century. Adsorption is yet to be the most effective and low-cost wastewater treatment method used for the removal of pollutants from wastewater, while naturally derived adsorbent materials have garnered tremendous attention. One promising example of such adsorbents is hydrogels (HGs), which constitute a three-dimensional polymeric network of hydrophilic groups that is highly capable of adsorbing a large quantity of metal ions and dyes from wastewater. Although HGs can also be prepared from synthetic polymers, natural polymers have improved environmental benignity. Recently, cellulose-based hydrogels (CBHs) have been extensively studied owing to their high abundance, biodegradability, non-toxicity, and excellent adsorption capacity. This review emphasizes different CBH adsorbents in the context of dyes and heavy metals removal from wastewater following diverse synthesis techniques and adsorption mechanisms. This study also summarizes various process parameters necessary to optimize adsorption capacity followed by future research directions.

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Removal of Cu (II) ion from water using sugar cane bagasse cellulose and gelatin based composite hydrogels

Cited by 52 publications

References 41 publications

Development of Antimicrobial Biocomposite Films to Preserve the Quality of Bread

Development of Antimicrobial Biocomposite Films to Preserve the Quality of Bread

Green Synthesis of pH-Responsive, Self-Assembled, Novel Polysaccharide Composite Hydrogel and Its Application in Selective Capture of Cationic/Anionic Dyes

Cellulose-Based Hydrogels for Wastewater Treatment: A Concise Review

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