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Zhang L, Li Q, Bai X, Li X, Zhang G, Zou J, Fei P, Lai W. Double network self-healing hydrogels based on carboxyethyl chitosan/oxidized sodium alginate/Ca 2+: Preparation, characterization and application in dye absorption. Int J Biol Macromol 2024; 264:130564. [PMID: 38431021 DOI: 10.1016/j.ijbiomac.2024.130564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/30/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
This paper presents the formation of a self-healing hydrogel prepared by carboxyethyl modification of chitosan and crosslinking with oxidized sodium alginate. Concurrently, the incorporation of Ca2+ facilitated the formation of "calcium bridges" through intricate coordination with carboxyl moieties, bolstering the attributes of the hydrogel. Various characterization methods, including scanning electron microscopy, texture analysis, and rheological measurements, demonstrated that the introduction of carboxyethyl groups resulted in a more compact hydrogel network structure and improved the hardness and elasticity. The addition of Ca2+ helped to further enhance the mechanical performance of the hydrogel and increase its thermal stability. Then, the adsorption capacity was also investigated, showing adsorption capacities of 46.17 mg/g methylene blue and 46.44 mg/g congo red for carboxyethyl chitosan/oxidized sodium alginate hydrogel, a four-fold increase for congo red versus chitosan/oxidized sodium alginate hydrogel. In addition, the adsorption behavior of CEC/OSA/2%Ca2+ hydrogel can be well described by pseudo-second-order kinetic model and Langmuir adsorption isothermal model. Compared to traditional hydrogels, CEC/OSA/2%Ca2+ hydrogel shows superior mechanical strength, enhanced thermal stability, and improved adsorption capacity, which can effectively adsorb not only methylene blue but also congo red. These advancements demonstrate our hydrogel's innovative properties.
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Affiliation(s)
- Linyu Zhang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Qianqi Li
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Xinru Bai
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Xiaoqin Li
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Jinmei Zou
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Peng Fei
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Wenqiang Lai
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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Bardajee GR, Mahmoodian H, Boraghi SA, Elmizadeh H, Ziarani NB, Rezanejad Z, Tyagi I, Gaur R, Javadian H. Nanoporous hydrogel absorbent based on salep: Swelling behavior and methyl orange adsorption capacity. ENVIRONMENTAL RESEARCH 2023; 225:115571. [PMID: 36871943 DOI: 10.1016/j.envres.2023.115571] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/20/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
This study used the gas-blowing method to develop a nanoporous hydrogel using poly (3-sulfopropyl acrylate-co-acrylic acid-co-acrylamide) grafted onto salep. The synthesis of the nanoporous hydrogel was optimized by various parameters for maximum swelling capacity. The nanoporous hydrogel was characterized using FT-IR, TGA, XRD, TEM, and SEM analyses. Images from SEM showed numerous pores and channels in the hydrogel with an average size of about 80 nm, forming a honeycomb-like shape. The change in surface charge was investigated by zeta potential and revealed that the surface charge of the hydrogel ranged from 20 mV at acidic conditions to -25 mV at basic conditions. The swelling behavior of optimum superabsorbent hydrogel was determined under different environmental conditions, such as different pH values, ionic strengths of the environment, and solvents. In addition, the swelling kinetics and the absorbance under loading of the hydrogel sample in different environments were investigated. Moreover, Methyl Orange (MO) dye was removed from aqueous solutions using the nanoporous hydrogel as an adsorbent. The adsorption behavior of the hydrogel was examined under various conditions, and the adsorption capacity of the hydrogel was found tobe 400 mg g-1. The maximum water uptake was obtained under the following conditions: Salep weight = 0.01 g, AA = 60 μL, MBA = 300 μL, APS = 60 μL, TEMED = 90 μL, AAm = 600 μL, and SPAK = 90 μL. Lastly, the adsorption kinetics was studied by employing pseudo-first-order, pseudo-second-order, and intra-particle diffusion models.
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Affiliation(s)
| | - Hossein Mahmoodian
- Department of Chemistry, Payame Noor University, P.O.BOX: 19395-3697, Tehran, Iran; Department of Chemistry and Biochemistry, Chemistrytech Company, Tehran, Iran.
| | - Seyed Ata Boraghi
- Department of Chemistry, Payame Noor University, P.O.BOX: 19395-3697, Tehran, Iran; Department of Chemistry and Biochemistry, Chemistrytech Company, Tehran, Iran
| | - Hamideh Elmizadeh
- Legal Medicine Research Center, Legal Medicine Organization, Tehran, Iran
| | | | - Zahir Rezanejad
- Department of Chemistry, Payame Noor University, P.O.BOX: 19395-3697, Tehran, Iran
| | - Inderjeet Tyagi
- Centre for DNA Taxonomy, Molecular Systematics Division, Zoological Survey of India, Kolkata, 700137, West Bengal, India.
| | - Rama Gaur
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Knowledge Corridor, Raysan, Gandhinagar, Gujarat, 382426, India
| | - Hamedreza Javadian
- Chemistry & Chemical Engineering Research Center of Iran (CCERCI), P.O. Box 14335-186, Tehran, Iran
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Chen R, Yang S, Liu B, Liao Y. Eco-Friendly Semi-Interpenetrating Polymer Network Hydrogels of Sodium Carboxymethyl Cellulose/Gelatin for Methylene Blue Removal. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093385. [PMID: 37176265 PMCID: PMC10180506 DOI: 10.3390/ma16093385] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/16/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
The present work describes the potential application of environmentally friendly sodium carboxymethylcellulose/gelatin (CMC/Gel) semi-interpenetrating hydrogels prepared by citric acid as a nontoxic cross-linking agent to adsorb dyes. The prepared hydrogels were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA/DTG), and swelling study. The adsorption performance of CMC/Gel2 (C/G2) hydrogel on methylene blue (MB) was investigated. The results showed the better adsorption conditions: adsorption time of 300 min, initial MB concentration of 500 mg/L, adsorbent dosage of 1.2 g/L, solution pH of 7, and temperature of 30 °C. The adsorption kinetics fit the pseudo-second order kinetics model, and the adsorption isotherm fit the Langmuir isotherm model. The maximum adsorption capacity reached 943.40 mg/g. The adsorption process is a spontaneous exothermic process. After three adsorption-desorption cycles, the removal rate of MB by hydrogel still reached 85%, with good reusability. Consequently, the hydrogel can be used as an environmentally friendly, stable, and efficient adsorbent for dyes in wastewater treatment.
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Affiliation(s)
- Rongbin Chen
- Engineering Research Center of Biotechnology of Active Materials (Ministry of Education), College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Shanbin Yang
- Engineering Research Center of Biotechnology of Active Materials (Ministry of Education), College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Bing Liu
- Engineering Research Center of Biotechnology of Active Materials (Ministry of Education), College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Youlin Liao
- Engineering Research Center of Biotechnology of Active Materials (Ministry of Education), College of Chemistry, Chongqing Normal University, Chongqing 401331, China
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Bhuyan MM, Jeong JH. Synthesis and Characterization of Gamma Radiation Induced Diallyldimethylammonium Chloride-Acrylic Acid-(3-Acrylamidopropyl) Trimethylammonium Chloride Superabsorbent Hydrogel. Gels 2023; 9:gels9020159. [PMID: 36826329 PMCID: PMC9956196 DOI: 10.3390/gels9020159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
The gamma radiation technique is simple and time-saving for the synthesis of pure hydrogels. The present work focuses on synthesizing and characterizing Diallyldimethylammonium Chloride-Acrylic acid-(3-Acrylamidopropyl) trimethylammonium Chloride (DADMAC-AAc-APTAC) superabsorbent hydrogels. The hydrogels were synthesized by applying gamma radiation of different doses (2 kGy to 30 kGy) to two different compositions of monomers. The equilibrium swelling was found to be 33483.48% of dried gel for a 1:0.5:1 composition ratio of monomers at a 2 kGy radiation dose. Therefore, on the basis of equilibrium swelling, 2 kGy is the optimum radiation dose for synthesizing the hydrogel. Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopy, and X-ray diffraction (XRD) characterization techniques were used to analyze and confirm the structure of the hydrogel. Thermogravimetric analysis (TGA) and Scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS) clearly showed the thermal stability and surface morphology of the gel. Therefore, it can be concluded that hydrogels can be used in metal adsorption, drug delivery, and other fields of study.
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Affiliation(s)
- Md Murshed Bhuyan
- Research Institute of Environment for Sustainability, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
- Thermal-Fluid Energy Machine Lab., Department of Mechanical Engineering, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
- Correspondence: (M.M.B.); (J.-H.J.); Tel./Fax: +82-42-750-5654 (J.-H.J.)
| | - Jae-Ho Jeong
- Thermal-Fluid Energy Machine Lab., Department of Mechanical Engineering, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
- Correspondence: (M.M.B.); (J.-H.J.); Tel./Fax: +82-42-750-5654 (J.-H.J.)
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Synthesis and Demulsification Properties of Poly (DMDAAC- co-DAMBAC) (9:1) Copolymer. Polymers (Basel) 2023; 15:polym15030562. [PMID: 36771863 PMCID: PMC9920301 DOI: 10.3390/polym15030562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/08/2022] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Utilizing the copolymerization modification of dimethyl diallyl ammonium chloride (DMDAAC), the high positive charge density of the copolymer could be maintained, thereby facilitating the deficiency of its monomer in the application. In this paper, poly (DMDAAC-co-DAMBAC) (9:1) was synthesized with an aqueous polymerization method using DMDAAC and methyl benzyl diallyl ammonium chloride (DAMBAC) as monomers and 2,2'-azobis [2-methylpropionamidine] dihydrochloride (V50) as an initiator. Targeted to the product's weight-average relative molecular mass (Mw), the response surface methodology (RSM) was used to optimize the preparation process. The optimal process conditions were obtained as follows: w (M) = 80.0%, m (V50):m (M) = 0.00700%, m (Na4EDTA):m (M) = 0.00350%, T1 = 50.0 °C, T2 = 60.0 °C, and T3 = 72.5 °C. The intrinsic viscosity ([η]) of the product was 1.780 dL/g, and the corresponding double bond conversion (Conv.) was 90.25 %. Poly (DMDAAC-co-DAMBAC) (9:1) revealed a highest Mw of 5.637 × 105, together with the polydispersity index d (Mw/Mn) as 1.464. For the demulsification performance of simulated crude oil O/W emulsions, the demulsification rate of poly (DMDAAC-co-DAMBAC) (9:1) could reach 97.73%. Our study has illustrated that the copolymerization of DMDAAC and a small amount of DAMBAC with poor reactivity could significantly improve the relative molecular weight of the polymer, enhance its lipophilicity, and thus the application scope of the polymer.
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Wang Z, Ma Z, Wang S, Pi M, Wang X, Li M, Lu H, Cui W, Ran R. Cellulose nanocrystal/phytic acid reinforced conductive hydrogels for antifreezing and antibacterial wearable sensors. Carbohydr Polym 2022; 298:120128. [DOI: 10.1016/j.carbpol.2022.120128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/02/2022] [Accepted: 09/15/2022] [Indexed: 11/24/2022]
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