Fruit waste-derived cellulose and graphene-based aerogels: Plausible adsorption pathways for fast and efficient removal of organic dyes

Joshi, Pratiksha; Sharma, O. P.; Ganguly, Sudip K.; Srivastava, Manoj; Khatri, Om P.

doi:10.1016/j.jcis.2021.11.016

Cited by 91 publications

(23 citation statements)

References 69 publications

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“…A green and environmentally friendly method was used to extract cellulose from durian rinds and prepare cellulose nanofiber. For extraction of cellulose from durian rinds, mild sodium carbonate was used to remove lignin and hemicellulose, instead of the popular sodium hydroxide [ 18 , 19 ]. Sodium hydroxide, which is a strong alkali, causes corrosion in equipment and certain risks in operation, as well as difficulty in and economic pressure on wastewater treatment.…”

Section: Resultsmentioning

confidence: 99%

Green Preparation of Durian Rind-Based Cellulose Nanofiber and Its Application in Aerogel

et al. 2022

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In this study, a green, highly efficient and low energy consumption preparation method of cellulose nanofiber (CNF) was developed by using agricultural and forestry waste durian rinds as raw materials. The power of ultrasonic treatment was successfully reduced to only 360 W with low molecular weight liquid DMSO. The obtained durian rind-based CNF had a diameter of 8–20 nm and a length of several micrometers. It had good dispersion and stability in water, and could spontaneously cross-link to form hydrogel at room temperature when the concentration was more than 0.5%. The microscopic morphology and compressive properties of CNF aerogels and composite cellulose aerogels prepared from durian rind-based CNF were evaluated. It was found that CNF could effectively prevent the volume shrinkage of aerogel, and the concentration of CNF had a significant effect on the microstructure and mechanical properties of aerogel. The CNF aerogel with 1% CNF exhibited a sheet structure braced by fibers, which had the strongest compression performance. The porosity of CNF aerogels was high to 99%. The compressive strength of the composite cellulose aerogel with durian rind-based CNF was effectively enhanced.

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Section: Resultsmentioning

confidence: 99%

Green Preparation of Durian Rind-Based Cellulose Nanofiber and Its Application in Aerogel

et al. 2022

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“…As explained above, the GBAs can be produced by different methods that leads to final materials with enhanced properties such as high electrical conductivity, high mechanical strength, thermal stability and high adsorption capacity for dyes, oils, organic solvents, and inorganic ions. Thus, the GBAs can be exploited in a whole range of applications, and they have become increasingly employed especially for environmental pollution control and monitoring, such as water treatment [68] and pollution degradation [69,70]. The other advantage that makes GBA so interesting in environmental applications is the reusability and the recyclability of these materials [71,72].…”

Section: Environmental Applications Of Graphene-based Aerogelsmentioning

confidence: 99%

A perspective on graphene based aerogels and their environmental applications

2022

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“…A simple, effective, and green method can be developed to prepare graphene-cellulose aerogels by which the efficiency of physical adsorption is improved and the adsorption capacity for anionic and cationic dyes is increased. The sensitivity of graphene-cellulose aerogel is a problem that needs to be solved for practical adsorption [ 20 ]. For this reason, we attempted to increase the adsorption capacity of composite materials by increasing the number and type of active sites.…”

Section: Introductionmentioning

confidence: 99%

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

Wang

Xie

et al. 2022

Nanomaterials

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Graphene-cellulose-polyethyleneimine aerogels (GA-MCC-PEI) were prepared using a simple, environmentally friendly method to remove anionic and cationic dyes in water. Graphene-cellulose hydrogels were prepared using a hydrothermal method and then immersed in a polyethyleneimine aqueous solution for 48 h to obtain graphene-cellulose-polyethyleneimine hydrogels, which were then freeze-dried. The light and porous composite aerogels had a good compression resistance, and the maximum allowable pressure of the graphene-cellulose-polyethyleneimine aerogel with a cellulose content of 43% was 21.76 kPa, which was 827 times its weight. Adsorption of the anionic dye amaranth and the cationic dye methylene blue by the graphene-cellulose-polyethyleneimine aerogel was satisfactorily modeled using the Langmuir isothermal equation, indicating monolayer adsorption. When the cellulose content was 39%, the equilibrium adsorption capacities of the composite aerogel for amaranth and methylene blue were 369.37 mg/g and 237.33 mg/g, respectively. This graphene-cellulose-polyethyleneimine aerogel can be used to remove dye pollutants in water to maintain ecological balance, thus broadening the application space of aerogel materials, that is, as adsorbents in different environments.

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Fruit waste-derived cellulose and graphene-based aerogels: Plausible adsorption pathways for fast and efficient removal of organic dyes

Cited by 91 publications

References 69 publications

Green Preparation of Durian Rind-Based Cellulose Nanofiber and Its Application in Aerogel

Green Preparation of Durian Rind-Based Cellulose Nanofiber and Its Application in Aerogel

A perspective on graphene based aerogels and their environmental applications

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

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