Facile synthesis of amphiphilic peach gum polysaccharide as a robust host for efficient encapsulation of methylene blue and methyl orange dyes from water

Zeng, Sihua; Tan, Jisuan; Xu, Xu; Huang, Xiaohua; Zhou, Li

doi:10.1016/j.ijbiomac.2020.03.151

Cited by 40 publications

(19 citation statements)

References 39 publications

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“…MB is known as a representative cationic model dye substance and has been used for a performance evaluation when developing surface-modified adsorption materials in many studies. , The MB removal performance of chemically crosslinked lignin/PVA fibers (Lig_75) under various pH conditions (pH 2, pH 4, pH 7, and pH 10) was evaluated. Figure d shows the highest MB removal performance of 262.81 mg/g at a pH of 10.…”

Section: Resultsmentioning

confidence: 99%

Highly Persistent Lignocellulosic Fibers for Effective Cationic Dye Pollutant Removal

Kim

Park

Bang

et al. 2022

ACS Appl. Polym. Mater.

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Due to concerns about environmental pollution and the depletion of fossil resources, research on the utilization of woody biomass, such as lignin and cellulose, has consistently increased. This study examined the possibility of lignin as an adsorption material for water restoration and the dye removal behavior. For fiber wet spinning with continuous preparation of lignin-based adsorbents, polyvinyl alcohol (PVA) was chosen as the additive polymer. To enhance the water stability of the lignin/PVA fibers, a natural crosslinking agent based on woody biomass, bioaldehyde cellulose, was utilized via a chemical crosslinking reaction. Moreover, Fourier transform infrared data confirmed that the crosslinking site of the bio-aldehyde crosslinker with lignin/PVA fiber was the hydroxyl group of PVA. The fiber remains stable under all pH conditions. Lignin/PVA fibers with maximum lignin contents exhibited a methyl orange removal capacity of 16.64 mg/ g and a methylene blue removal capacity of 354.61 mg/g. The excellent cationic dye removal ability was attributed to π−π stacking, hydrogen bonding, and powerful electrostatic interactions between the adsorbent and cationic dye caused by deprotonated hydroxyl and carboxyl groups of lignin. In addition, the low pH condition was the most efficient for the desorption process, and a 95% adsorption efficiency was maintained with five regeneration cycles.

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Section: Resultsmentioning

confidence: 99%

Highly Persistent Lignocellulosic Fibers for Effective Cationic Dye Pollutant Removal

Kim

Park

Bang

et al. 2022

ACS Appl. Polym. Mater.

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“…This could be attributed to the competition between the high concentration of H + and positively charged MB for the adsorption sites under strong acid condition, what would affect the surface charges of the adsorbent and then make the adsorption performance decrese. [36] In addition, when the solution is strong basic, electrostatic repulsion between the MP surface and the ingoing anions lowered the adsorption amount. Considering the pH of this natural wastewater is about 7, adjustment of the pH is not needed in the following experiments.…”

Section: Decoloration Performance Of the Materialsmentioning

confidence: 99%

Preparation, Characterization and Decolorization Performance of Magnetic Adsorbent Pellets Formed by the Utilization of Electric Flocculation Sludge

et al. 2021

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A new magnetic adsorbent pellets(MP) was prepared with electric flocculation sludge as raw material by technologies of alkaline impregnation, heat activation and composition with vermiculite. Its decolorization performance for treating methylene blue (MB) dye wastewater is studied, and its structure was analyzed by FTIR, XRD, SEM, XPS, BET and magnetic hysteresis curve. The results showed that the best prepare condition of MP is that impregnation time of 15 % KOH solution is 48 h and a subsequent calcination at 600 °C for 60 min, m(vermiculite)/m(sludge)=1.0. Characterization analysis illustrates that the activated sludge and vermiculite has been successfully composited. And the organic waste in sludge is converted into activated carbon and the iron species are transformed into Fe3O4. It has mesoporous structure and magnetic property and can be separated from the solution by an external magnetic field. In addition, MP was effective on treating MB wastewater, the decoloration is 85 % at the dosage of 10 g L−1 when the contact time is 84 h and the initial concentration of dye is 10 mg L−1 and 20 mg L−1. The sludge utilization technology investigated in this work is a new process which could reduce the emission, protect the environment and yield the useful by‐product.

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“…However, their limited surface area and accessible active sites, low interaction, and lack of nanoscale morphology limit their overall performance for dye removal from aqueous solution. To enhance the adsorption efficiency of these traditional adsorbents, surface modification and hybridization with different materials, such as polymers, 13 nanoparticles, 14 dendrimer and hyperbranched polymers, 15,16 and metal-organic frameworks (MOFs), 17 have been suggested by researchers. MOFs are considered to be attractive porous crystalline materials with unique structural characteristics such as a superior specific surface area, adjustable pore size, structural versatility, and outstanding stability against thermal and chemical treatment.…”

Section: Introductionmentioning

confidence: 99%

A 3D-printed hierarchical porous architecture of MOF@clay composite for rapid and highly efficient dye scavenging

et al. 2022

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Facile synthesis of amphiphilic peach gum polysaccharide as a robust host for efficient encapsulation of methylene blue and methyl orange dyes from water

Cited by 40 publications

References 39 publications

Highly Persistent Lignocellulosic Fibers for Effective Cationic Dye Pollutant Removal

Highly Persistent Lignocellulosic Fibers for Effective Cationic Dye Pollutant Removal

Preparation, Characterization and Decolorization Performance of Magnetic Adsorbent Pellets Formed by the Utilization of Electric Flocculation Sludge

A 3D-printed hierarchical porous architecture of MOF@clay composite for rapid and highly efficient dye scavenging

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