Facile synthesis of trimethylammonium grafted cellulose foams with high capacity for selective adsorption of anionic dyes from water

Feng, Chuting; Ren, Penggang; Huo, Meixia; Dai, Zhong; Liang, Di; Jin, Yanling; Ren, Fangfang

doi:10.1016/j.carbpol.2020.116369

Cited by 86 publications

(25 citation statements)

References 62 publications

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“…One Gram of chitosan was dissolved in 100 ml acetic acid 5% (v/v) and left overnight. en, 5 ml chitosan solution dropped into TPP (1%, 5%, 10%, and 15% w/v) using a syringe and immersed at various time conditions (1,3,6,12, and 24 h) and filtered. Chitosan beads were added to ECH solution in distilled water (1%, 2.5%, and 5% v/v) and heated for 2 h at 50-60°C while stirring.…”

Section: Preparation Of Cross-linked Chitosanmentioning

confidence: 99%

“…The adsorption method is a simple operation and easy to modify adsorbents to enhance their adsorption capacity [ 11 ]. Some materials frequently used as the adsorbent for metallic and nonmetallic compounds are natural biomass, which includes cellulose, rice husk, and other bioadsorbents [ 12 , 13 ], activated and modified activated carbons [ 14 , 15 ], and waste materials [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Kinetic Studies of Cross-Linked Chitosan Beads Using Dual Crosslinkers of Tripolyphosphate and Epichlorohydrin for Adsorption of Methyl Orange

Sabarudin

Madjid

2021

The Scientific World Journal

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Preparation of cross-linked chitosan beads using dual crosslinkers of tripolyphosphate (TPP) and epichlorohydrin (ECH) for the adsorption and kinetic studies of methyl orange (MO) had been carried out. FTIR spectra showed that TPP could act as the protecting agent of the NH2 group of chitosan and ECH reacted with the primary hydroxyl group of chitosan. Various concentrations of TPP, ECH, and immersing time in the TPP solution for bead formation were studied. The effect of pH and kinetics of adsorption were investigated to define the mechanism of adsorption and rate-limiting step. As a result, pH 3, 10% (w/v) TPP, 5% (v/v) ECH, and 12 h immersing time in TPP were selected as the optimum conditions for preparing the beads as indicated by the highest adsorption amount of MO. The cross-linked chitosan beads’ adsorption capacity for MO under optimum condition was found to be 79.55 mg/g with the adsorption rate constant (k) of 1.29 × 10−3/min. Furthermore, it was found that a low concentration of ECH could maintain the stability of chitosan in acidic conditions, whereas the concentration of TPP and immersing time controlled pore size and morphology of chitosan beads. The mechanism of adsorption of MO was controlled by the pore and rigidity of cross-linked chitosan beads. Bulk diffusion acted as a rate-limiting step, and a high concentration of MO inhibited diffusion and adsorption itself.

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Section: Preparation Of Cross-linked Chitosanmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Kinetic Studies of Cross-Linked Chitosan Beads Using Dual Crosslinkers of Tripolyphosphate and Epichlorohydrin for Adsorption of Methyl Orange

Sabarudin

Madjid

2021

The Scientific World Journal

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“…Os ensaios de cinética de adsorção Para os experimentos de cinética foram conduzidos em batelada (FENG et al 2020). Amostras de 100,0 mg dos adsorventes provenientes das partes raiz, caule e folha do aguapé foram colocadas em contato com 10,0 mL da solução aquosa do corante de concentração inicial 250 mg.L -1 , nos seguintes intervalos de tempo: 1, 5, 10, 20, 30, 45, 60, 90, 120 e 180 minutos, sob agitação mecânica constante e temperatura de 25 ºC.…”

Section: O Adsorvatounclassified

Potencialidades Da Eichhornia Azurea (Aguapé) Na Remoção Do Corante Têxtil Turquesa Remazol Em Meio Aquoso: Estudo Dos Mecanismos Cinéticos De Adsorção / Potentialities of Eichhornia Azurea (Water Hyacinth) in the Removal of the Turquoise Textile Dye Remazol in Aqueous Medium: Study of the Kinetic Mechanisms of Adsorption

Souza

Holanda

Aires

et al. 2020

BJD

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“…Today, the permeation of material effluents into the water bodies and biological communities remain a particular problem towards the public wellbeing. Among the various chemical effluents contained in industrial wastewater, synthetic ionic dyes cause environmental issues as it restricts sunlight from reaching aquatic life, greatly decreases the water quality of waterways, introduces poisonous chemicals to food chain organisms and carcinogenic substances that are detrimental to human health (Feng et al 2020;Hameed et al 2017;Kumar 2019;Xu et al 2020). Even at a very low concentration, dyes are easily seen in water bodies which decrease their aesthetic value.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Alpinia galangaStem Based Activated Carbon via Single-step Microwave Irradiation for Cationic Dye Removal

Ahammad¹,

Yusop²,

Din³

et al. 2021

JSM

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The focal point of this study is to synthesis Alpinia galanga Stem-based activated carbon (AGSAC) by using single-step microwave irradiation and testing it for the removal of cationic dye, methylene blue (MB) from aqueous solution. AGSAC was prepared under the flow of carbon dioxide (CO2) for the gasification effect. The factors of contact time (from 0 to 24 h) and initial concentration (25-300 mg/L) on the adsorption performance of AGSAC were studied. With the aid of response surface methodology (RSM) via face-centered composite design (FCD), optimum preparation conditions for AGSAC were found to be 400 W for radiation power and 4 min for activation time, respectively, which resulted in 95.67% of MB dye removal. The optimized AGSAC has a Bruneaur-Emmet-Teller (BET) surface area of 172.19 m2/g, mesopore surface area of 103.32 m2/g, a total pore volume of 0.1077 cm3/g, and fixed carbon content of 47.63%. The pore diameter of AGSAC was found to be a mesoporous type with a pore diameter of 2.50 nm. Freundlich isotherm and pseudo-second-order were found as the best-fitted model for MB adsorption equilibrium and kinetic respectively onto prepared AGSAC. Intraparticle diffusion was found to be the rate-limiting step.

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Facile synthesis of trimethylammonium grafted cellulose foams with high capacity for selective adsorption of anionic dyes from water

Cited by 86 publications

References 62 publications

Preparation and Kinetic Studies of Cross-Linked Chitosan Beads Using Dual Crosslinkers of Tripolyphosphate and Epichlorohydrin for Adsorption of Methyl Orange

Preparation and Kinetic Studies of Cross-Linked Chitosan Beads Using Dual Crosslinkers of Tripolyphosphate and Epichlorohydrin for Adsorption of Methyl Orange

Preparation of Alpinia galangaStem Based Activated Carbon via Single-step Microwave Irradiation for Cationic Dye Removal

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