Fast synthesis of an eco-friendly starch-grafted poly(N,N-dimethyl acrylamide) hydrogel for the removal of Acid Red 8 dye from aqueous solutions

Sadik, Wagih A.; El-Demerdash, A. M.; Abbas, Rafik; Gabre, Hossam Ahmed

doi:10.1007/s00289-019-02958-x

Cited by 27 publications

(12 citation statements)

References 47 publications

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“…9 , first AR8 dye which is sulfonate dye(D-SO 3 Na) dissociated into anionic ions (D-SO 3 − ) and sodium cation (Na + ) and at pH = 1 aqueous solution, OH groups of the prepared CNCsH are protonated. Secondly, electrostatic attraction take place between the protonated OH group in CNCsH and the anionic ion of the dye 40 . The different factors affecting the removal of the AR8 dye by CNCsH were investigated and presented in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Biodegradable cellulose nanocrystals hydrogels for removal of acid red 8 dye from aqueous solutions

Abdelaziz

El‐Maghraby

Sadik

et al. 2022

Sci Rep

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Biodegradable cellulose nanocrystals hydrogels (CNCsH) were synthesized from cellulose nanocrystals (CNCs) which were prepared from office wastepaper (OWP) by a chemical crosslinking method using epicholorohydrin (ECH) as a cross-linker. CNCsH were tested for their swelling behavior and biodegradability and the point of zero charge had been determined. The ability of CNCsH for removing the Acid Red 8 (AR8) anionic dye from its aqueous solution was evaluated. The different parameters affecting removal of the dye, such as pH, initial concentration of dye, content of CNCs, temperature and adsorbent dosage were investigated. The optimum conditions for 68% removal efficiency were pH = 1, initial concentration of dye = 10 ppm, contact time = 105 min, CNCs content = 5% and CNCsH dosage = 0.5 g at 30 °C. The adsorption isotherms, kinetics, and thermodynamic parameters have been studied. The results showed an appropriate fit for Langmuir adsorption isotherm and pseudo-second order kinetics model with an adsorption capacity of 17.12 mg/g. According to the obtained values of thermodynamic parameters, the removal of Acid red 8 by CNCs hydrogels was exothermic spontaneous process.

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Section: Resultsmentioning

confidence: 99%

“…The hydrogel was then collected, rinsed with distilled water and reused for the dye adsorption as stated above. To study the reusability of CNCsH, the adsorption–desorption cycle was conducted four times 40 .…”

Section: Reusability Studymentioning

confidence: 99%

Biodegradable cellulose nanocrystals hydrogels for removal of acid red 8 dye from aqueous solutions

Abdelaziz

El‐Maghraby

Sadik

et al. 2022

Sci Rep

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“…Mechanisms of adsorption have been noticed on the works of Hossain et al ( Figure 1 ) [ 31 , 33 ]. At low value of pH, dimethyl acrylamide groups are protonated, and a positively charged NH(CH 3 ) 2 + surface leads to electrostatic interaction with the negatively charged dye molecules, thus improving the negatively charged dye removal [ 34 , 35 ].…”

Section: Nn-dimethylacrylamide-based Hydrogels For Dye Removalmentioning

confidence: 99%

“…In similar way, starch-grafted poly(N,N-dimethyl acrylamide) hydrogel was synthesized. In a starch-grafted poly(N,N-dimethyl acrylamide) hydrogel experiment, 1 g from a 40 mL water solution of starch was added both into different amounts (2.5–10 g) of DMAA and MBA (0.002–0.006 g), while 0.3 g of APS was used as an initiator [ 35 ]. Akhmetzhan et al synthesized DMAA hydrogel with Na-AMPS at different molar ratios of monomers.…”

Section: Synthesis Of Dmaa-based Hydrogelsmentioning

confidence: 99%

A Short Review on the N,N-Dimethylacrylamide-Based Hydrogels

Akhmetzhan

Myrzakhmetova

Amangeldi

et al. 2021

Gels

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Scientists have been encouraged to find different methods for removing harmful heavy metal ions and dyes from bodies of water. The adsorption technique offers promising outcomes for heavy metal ion removal and is simple to run on a large scale, making it appropriate for practical applications. Many adsorbent hydrogels have been developed and reported, comprising N,N-dimethylacrylamide (DMAA)-based hydrogels, which have attracted a lot of interest due to their reusability, simplicity of synthesis, and processing. DMAA hydrogels are also a suitable choice for self-healing materials and materials with good mechanical properties. This review work discusses the recent studies of DMAA-based hydrogels such as hydrogels for dye removal and the removal of hazardous heavy metal ions from water. Furthermore, there are also references about their conduct for self-healing materials and for enhancing mechanical properties.

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“…Hydrogel is a hydrophilic three‐dimensional (3D) polymer network with an inherent structure similar to biological materials, whose physical and chemical properties are tunable 1,2 . Therefore, hydrogel is widely used in sensors, 3,4 drug release, 5,6 adsorption, 7‐9 agriculture, 10,11 and other fields 12,13 . The durability and stress‐bearing applications, especially high comprehensive performances of quick recovery with no residual strain, are critical for hydrogels to realize their potential applications in biological materials such as human‐made cartilages and tissues 13,14 .…”

Section: Introductionmentioning

confidence: 99%

Poly(acrylamide‐co‐acrylic acid)/chitosan semi‐interpenetrating hydrogel for pressure sensor and controlled drug release

Hong

Ding

et al. 2021

Polymers for Advanced Techs

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With high biocompatibility and pH‐sensitivity, hybrid hydrogels of chitosan (CS) have been widely used in sensor, drug release systems, adsorption, agriculture, and other fields. Herein, a poly(acrylamide‐co‐acrylic acid)/chitosan [P(AM‐co‐AA)/CS] hydrogel with semi‐interpenetrating (semi‐IPN) network was synthesized through in situ copolymerization of acrylamide (AM), N,N′‐methylene‐bisacrylamide (MBAA) and acrylic acid (AA) solution of chitosan using potassium persulfate (KPS) and sodium bisulfite (SBS) as oxidation‐reduction co‐initiators. CS‐AA complex monomer was prepared by dissolving CS in AA solution. Meanwhile, MBAA was used as a crosslinker to enhance the strength of the resulted hybrid hydrogels via introducing chemical crosslinking to the substrate P(AM‐co‐AA) copolymer. The morphology of the freeze‐dried sample of P(AM‐co‐AA)/CS hydrogel shows dense interconnected pores. When the CS content is 2.4%, the P(AM‐co‐AA)/CS hydrogel has a compressive stress of 5.06 MPa at strain of 90.0% and a tensile strength of 161.71 kPa at strain of 1082.0%. The CP(AM‐co‐AA)/CS hydrogel also demonstrates extraordinary antifatigue property under cyclic compression of 85%. Because of the outstanding mechanical properties, a capacitive pressure sensor using P(AM‐co‐AA)/CS hydrogel as a dielectric with good durability and linearity at low operating voltage was fabricated. Besides, the water uptake of the P(AM‐co‐AA)/CS hydrogels is pH‐sensitive, and the hydrogels could serve as a matrix for loading of ranitidine hydrochloride with controlled release under different pH environments.

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Fast synthesis of an eco-friendly starch-grafted poly(N,N-dimethyl acrylamide) hydrogel for the removal of Acid Red 8 dye from aqueous solutions

Cited by 27 publications

References 47 publications

Biodegradable cellulose nanocrystals hydrogels for removal of acid red 8 dye from aqueous solutions

Biodegradable cellulose nanocrystals hydrogels for removal of acid red 8 dye from aqueous solutions

A Short Review on the N,N-Dimethylacrylamide-Based Hydrogels

Poly(acrylamide‐co‐acrylic acid)/chitosan semi‐interpenetrating hydrogel for pressure sensor and controlled drug release

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