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Huang Y, Peng Y, Zhang G, Wu Z, Li J, Ding W, Li H, An Y, Ao L, Shen Y, Zheng H. Synthesis and fabrication of magnetically separable phosphate-modified magnetic chitosan composites for lead(II) selective removal from wastewater. ENVIRONMENTAL RESEARCH 2024; 258:119416. [PMID: 38885827 DOI: 10.1016/j.envres.2024.119416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/29/2024] [Accepted: 06/11/2024] [Indexed: 06/20/2024]
Abstract
To address the urgent need for efficient removal of lead-containing wastewater and reduce the risk of toxicity associated with heavy-metal wastewater contamination, materials with high removal rates and easy separation must be developed. Herein, a novel organic-inorganic hybrid material based on phosphorylated magnetic chitosan (MSCP) was synthesized and applied for the selective removal of lead (II) from wastewater. From the characterization and the experimental results can be obtained that the magnetic saturation strength of MSCP reaches 14.65 emu/g, which can be separated quickly and regenerated readily, and maintains high adsorption performance even after 5 cycles, indicating that the adsorbent possesses good magnetic separation performance and durability. Also, MSCP showed high selective adsorption performance for lead in the multiple metal ions coexistence solutions at pH 6.0 and room temperature, with an adsorption coefficient SPb-MSCP of 78.85%, which was much higher than that of MSC (the SPb-MSC was 11.59%). Additionally, in the single lead system, the sorption characteristics of Pb(II) on MSCP and MCP had obvious pH-responsiveness, and their adsorption capacity increased with the increase of solution pH, reaching the maximal values of 80.19 and 72.68 mg/g, respectively. It is noteworthy that the acid resistance of MSCP with an inert layer coated on the core is significantly improved, with almost no iron leaching from MSCP over the entire acidity range, while MCP has 7.63 mg/g of iron leaching at pH 1.0. Significantly, MSCP exhibited a maximum adsorption capacity of 102.04 mg/g, which matches the Langmuir model at pH 6.0 and 298.15 K, and points to the pseudo-second-order kinetics of the chemisorption process of Pb(II) on MSCP. These findings highlight the great potential of MSCP for Pb(II) removal from aqueous solution, making it a promising solution for Pb(II) contamination in wastewater.
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Affiliation(s)
- Yaoyao Huang
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; Chongqing Academy of Eco-Environmental Science, Southwest Branch of Chinese Research Academy of Environmental Sciences, Chongqing, 401336, China.
| | - Yuqi Peng
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Guizhi Zhang
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Zhengsijia Wu
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Juan Li
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Wei Ding
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Hong Li
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Yanyan An
- Department of Civil and Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Liang Ao
- Chongqing Academy of Eco-Environmental Science, Southwest Branch of Chinese Research Academy of Environmental Sciences, Chongqing, 401336, China
| | - Yu Shen
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Huaili Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
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Stanciu MC, Teacă CA. Natural Polysaccharide-Based Hydrogels Used for Dye Removal. Gels 2024; 10:243. [PMID: 38667662 PMCID: PMC11049453 DOI: 10.3390/gels10040243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 03/29/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024] Open
Abstract
Removal of contaminants from discharge water is vital and demands urgent assistance with the goal to keep clean water. Adsorption is one of the most common, efficient, and low-priced methods used in water treatment. Various polysaccharide-based gels have been used as efficient dye adsorbents from wastewater. This review summarizes cutting-edge research of the last decade of different hydrogels based on natural polysaccharides (chitin, chitosan, cellulose, starch, pullulan, and dextran) concerning their dye adsorption efficiency. Beyond their natural abundance, attributes of polysaccharides such as biocompatibility, biodegradability, and low cost make them not only efficient, but also environmentally sustainable candidates for water purification. The synthesis and dye removal performance together with the effect of diverse factors on gels retaining ability, kinetic, and isotherm models encountered in adsorption studies, are introduced. Thermodynamic parameters, sorbent recycling capacity along with conclusions and future prospects are also presented.
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Affiliation(s)
- Magdalena-Cristina Stanciu
- Natural Polymers, Bioactive and Biocompatible Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Gr. Ghica-Voda Alley, 700487 Iasi, Romania
| | - Carmen-Alice Teacă
- Center for Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Gr. Ghica-Voda Alley, 700487 Iasi, Romania
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3
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Xiao P, Xu J, Shi H, Du F, Du H, Li G. Simultaneous Cr(VI) reduction and Cr(III) sequestration in a wide pH range by using magnetic chitosan-based biopolymer. Int J Biol Macromol 2023; 253:127398. [PMID: 37827410 DOI: 10.1016/j.ijbiomac.2023.127398] [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: 08/12/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
The simultaneous reduction of Cr(VI) and sequestration of the resulting Cr(III) in one process is highly desirable as a cost-effective and environmental-friendly approach for the decontamination of Cr(VI)-polluted wastewater. However, most of the existing adsorptive materials are only effective in low pH environments (pH = 1-3), severely restricting the adsorption efficiency and cost effectiveness. Herein, we proposed a chitosan-based magnetic porous microsphere (PPy@PMCS) for simultaneous Cr(VI) reduction and Cr(III) sequestration in a wide pH range. Benefiting from its abundant interaction sites, Cr(VI) was effectively adsorbed on the surface and then immediately reduced to Cr(III) with much lower toxicity. Most importantly, the resulting Cr(III) was in-situ sequestrated by the complexation of chitosan matrix. As a result, PPy@PMCS exhibited a maximum Cr(VI) adsorption capacity of 330.42 mg/g at pH 2.0 and an adsorption capacity of 167.82 mg/g even at near neutral pH (6.0), which is superior to most reported adsorbents. Furthermore, the exhausted PPy@PMCS can be rapidly separated from solutions under an external magnetic field and facilely regenerated. The proposed novel biopolymer-based material shows great application potentials in wastewater treatment.
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Affiliation(s)
- Peiyuan Xiao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; UNEP-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai 200092, China; Chongqing Tongji Research Institute Co., Ltd, Chongqing 401123, China
| | - Junqing Xu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; UNEP-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai 200092, China
| | - Hongliang Shi
- Yangtze River Delta Institute of Circular Economy Technology, Jiaxing, Zhejiang 314001, China
| | - Fengyang Du
- Yangtze River Delta Institute of Circular Economy Technology, Jiaxing, Zhejiang 314001, China
| | - Huanzheng Du
- UNEP-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai 200092, China.
| | - Guangming Li
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; UNEP-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai 200092, China.
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4
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Cao Y, Qin J, Su Z, Cai L, Fang G, Wang S. Novel poly ( N-methacryloyl-L-alanine acid) grafted chitosan microspheres based solid-phase extraction coupled with ICP-MS for simultaneous detection of trace metal elements in food. Food Chem X 2023; 20:100926. [PMID: 38144718 PMCID: PMC10739841 DOI: 10.1016/j.fochx.2023.100926] [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: 03/19/2023] [Revised: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 12/26/2023] Open
Abstract
Poly (N-methacryloyl-L-alanine acid) grafted tartaric acid-crosslinked chitosan microspheres (PNMA-TACS) were successfully synthesized and employed as a novel adsorbent for the separation and enrichment of metal ions in the food system. PNMA-TACS microspheres-based solid phase extraction (SPE) was coupled with ICP-MS for accurate quantification of trace V(V), Cr(III), As(III), Pb(II), Cd(II) and Cu(II). The obtained PNMA-TACS microspheres were characterized, and parameters influencing the method were optimized. Under optimal conditions, the calibration curves for Cu(II) and V(V) were linear within 0.01-30 μg L-1, the linear ranges of Cr(III), As(III), Pb(II) and Cd(II) were 0.01-15 μg L-1, and the detection limit of the developed approach was 1.1-3.7 ng L-1. The results were consistent with the consensus values of method validation implemented by two standards. Moreover, standard addition recovery experiments were performed in rice and milk powder, which achieved satisfactory recovery of 86.1-103.5%.
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Affiliation(s)
- Yichuan Cao
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Jiaxing Qin
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zheng Su
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Lin Cai
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Guozhen Fang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Shuo Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
- Research Center of Food Science and Human Health, School of Medicine, Nankai University, Tianjin 300071, China
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5
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Ma W, Liu X, Lu H, He Q, Ding K, Wang X, Wang W, Guo F. Chitosan-based composite hydrogel with a rigid-in-flexible network structure for pH-universal ultra-efficient removal of dye. Int J Biol Macromol 2023; 241:124579. [PMID: 37105247 DOI: 10.1016/j.ijbiomac.2023.124579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 04/05/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023]
Abstract
Polysaccharide-based hydrogel adsorbents become popular because of their high adsorption capacity and fast adsorption rate, but their low removal rate and poor pH resistance have always been fatal shortcomings. Herein, a feasible strategy was proposed to strengthen the ability of hydrogel adsorbent to remove organic pollutants (i.e., dye) by incorporating natural rectorite (REC) into chitosan-g-poly (2-acrylamido-2-methyl-propane-sulfonic-acid) hydrogel network to form a rectorite-in-polymer network structure. The introduction of less dosage of REC (1.2 wt%) into the hydrogel facilitates to improve its adsorption capacities toward methylene blue (MB) in deionized water, tap water, seawater, Yangtze River water, and Yellow River water (1083.39-1303.49 mg/g); while incorporating higher content of REC (15.8 wt% REC) helps to improve the removal rate (99.6 % for MB in real waters), which are greatly superior to commercial activated carbons. The adsorbent keeps high adsorption efficiency in a broad pH range (2-11), and can be reused for >4 times.
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Affiliation(s)
- Wenyuan Ma
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Xiangyu Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Hang Lu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Qingdong He
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Ke Ding
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Xuehan Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Wenbo Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China.
| | - Fang Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
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6
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Huang Y, Shen Y, Zhang G, Lu P, Wu Z, Tang R, Liu J, Wu X, Wang C, Zheng H. Highly effective and selective removal of lead ions by polymer-grafted silica-coated acid-resistant magnetic chitosan composites. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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7
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Inthanusorn W, Rutnakornpituk M, Rutnakornpituk B. Reusable poly(2-acrylamido-2-methylpropanesulfonic acid)-grafted magnetic nanoparticles as anionic nano-adsorbents for antibody and antigen. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2042288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Wasawat Inthanusorn
- Department of Chemistry and Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Metha Rutnakornpituk
- Department of Chemistry and Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Boonjira Rutnakornpituk
- Department of Chemistry and Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok, Thailand
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8
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Magnetic chitosan microspheres: An efficient and recyclable adsorbent for the removal of iodide from simulated nuclear wastewater. Carbohydr Polym 2022; 276:118729. [PMID: 34823765 DOI: 10.1016/j.carbpol.2021.118729] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/20/2021] [Accepted: 10/01/2021] [Indexed: 12/16/2022]
Abstract
The efficient and recyclable magnetic chitosan microspheres (MCMs) were successfully synthesized to remove iodide from nuclear wastewater and characterized through XRD, FTIR, SEM, EDS, VSM, TGA and XPS. The characterization results indicated that the MCMs exhibited smooth spherical morphology and good magnetic properties. The removal potential of MCMs was investigated for iodide (I-) anions at different conditions. From pH 3 to pH 9, MCMs performed the high I- removal efficiency (>90%). The maximum I- removal capacity of MCMs was up to 0.8087 mmol g-1 at 298 K, well-fitting with the pseudo-second-order and Sips models. Furthermore, the I- removal efficiency of MCMs still maintained more than 91% after five adsorption-desorption cycles, performing good regeneration and reusability. This study is expected to prompt the MCMs to become an efficient and recyclable biosorbent for iodide removal from nuclear wastewater.
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9
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Huang L, Li D, Zhang D, Peng H, Ren Y. Facile preparation of taurine modified magnetic chitosan nanocomposites as biodegradable adsorbents toward methylene blue. ENVIRONMENTAL TECHNOLOGY 2021; 42:3191-3204. [PMID: 32003648 DOI: 10.1080/09593330.2020.1725140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/26/2020] [Indexed: 06/10/2023]
Abstract
A novel magnetic Fe3O4@chitosan@taurine adsorbent (MCT) was prepared by surface modification of magnetic chitosan nano-composites with taurine-glutaraldehyde solution. The adsorbents were characterized by FTIR, SEM, TEM, XRD, TGA and VSM techniques, respectively. According to the FTIR spectrum of MCT, the characteristic peaks of the SO3-group on MCT were observed to have a shift after adsorption of the cationic dye, which indicates that there may be electrostatic attraction between the MCT and the cationic dye. Moreover, the saturation magnetization of MCT was found to be 20.797 emu g-1, suggesting that MCT has sufficient magnetic response to meet the need of magnetic separation. The adsorption properties of cationic dyes by MCT were further investigated by using methylene blue (MB) as a representative. The adsorption behaviour of MB by MCT was well described by the pseudo-second order kinetic model and the Langmuir isotherm model, respectively. The maximum adsorption capacity of MB calculated from the Langmuir model fitting was 204.1 mg g-1 at pH 5 and 384.6 mg g-1 at pH 9, respectively, and the adsorption equilibrium could be reached within 10 min. Besides, the negative values of ΔG° and ΔH° suggested that the adsorption process was spontaneous and exothermic, and the good reusability indicated that MCT could act as a recyclable adsorbent for dye adsorption. All of these results illustrate that MCT has great potential for practical application in removal of cationic dyes from aqueous solutions.
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Affiliation(s)
- Long Huang
- China Tobacco Hubei Industrial Co. Ltd., Wuhan, People's Republic of China
| | - Dan Li
- China Tobacco Hubei Industrial Co. Ltd., Wuhan, People's Republic of China
| | - Duntie Zhang
- China Tobacco Hubei Industrial Co. Ltd., Wuhan, People's Republic of China
| | - Hong Peng
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Yong Ren
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Aramesh N, Bagheri AR, Bilal M. Chitosan-based hybrid materials for adsorptive removal of dyes and underlying interaction mechanisms. Int J Biol Macromol 2021; 183:399-422. [PMID: 33930445 DOI: 10.1016/j.ijbiomac.2021.04.158] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 02/01/2023]
Abstract
Environmental pollution by dyes molecules has become a subject of intensive research in recent years due to their hazardous effects on human health, organisms, and animals. Effective treatment and removal of dye molecules from the environmental matrices and water sources are of supreme concern. The deployment of cheap, safe, green, sustainable, and eco-friendly materials to remove these pollutants from water is the main challenge during the last decades. Chitosan and its derivatives/composites, as a cheap, easily available, and environmentally friendly sorbent, have attracted increasing attention for the removal of dye molecules. This review article focuses on the application of chitosan and chitosan-based smart adsorbents for the removal of dyes. Recent methods for the preparation of chitosan-based composites and their application in the removal of dyes are discussed. Moreover, the possible mechanisms for the interaction of chitosan and chitosan-based adsorbents with dyes molecules were evaluated. Finally, future prospects of using chitosan as an adsorbent for the removal of dye molecules are directed.
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Affiliation(s)
- Nahal Aramesh
- Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran.
| | | | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China.
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11
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Li G, Row KH. Deep eutectic solvents cross‐linked molecularly imprinted chitosan microsphere for the micro‐solid phase extraction of
p
‐hydroxybenzoic acid from pear rind. J Sep Sci 2020; 44:549-556. [DOI: 10.1002/jssc.202000984] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/09/2020] [Accepted: 11/13/2020] [Indexed: 01/26/2023]
Affiliation(s)
- Guizhen Li
- School of Chemistry and Chemical Engineering Linyi University Linyi Shandong 276005 P. R. China
- Department of Chemistry and Chemical Engineering Education and Research Center for Smart Energy and Materials, Inha University Incheon 402‐701 Korea
| | - Kyung Ho Row
- Department of Chemistry and Chemical Engineering Education and Research Center for Smart Energy and Materials, Inha University Incheon 402‐701 Korea
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12
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Zhang H, Li Y, Cheng B, Ding C, Zhang Y. Synthesis of a starch-based sulfonic ion exchange resin and adsorption of dyestuffs to the resin. Int J Biol Macromol 2020; 161:561-572. [DOI: 10.1016/j.ijbiomac.2020.06.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/28/2020] [Accepted: 06/02/2020] [Indexed: 10/24/2022]
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Kumar D, Gihar S, Shrivash MK, Kumar P, Kundu PP. A review on the synthesis of graft copolymers of chitosan and their potential applications. Int J Biol Macromol 2020; 163:2097-2112. [PMID: 32949625 DOI: 10.1016/j.ijbiomac.2020.09.060] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/25/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022]
Abstract
Chitosan is an antimicrobial, biodegradable and biocompatible natural polymer, commercially derived from the partial deacetylation of chitin. Currently modified chitosan has occupied a major part of scientific research. Modified chitosan has excellent biotic characteristics like biodegradation, antibacterial, immunological, metal-binding and metal adsorption capacity and wound-healing ability. Chitosan is an excellent candidate for drug delivery, food packaging and wastewater treatment and is also used as a supporting object for cell culture, gene delivery and tissue engineering. Modification of pure chitosan via grafting improves the native properties of chitosan. Chitosan grafted copolymers exhibit high significance and are extensively used in numerous fields. In this review, modifications of chitosan through several graft copolymerization techniques such as free radical, radiation, and enzymatic were reported and the properties of grafted chitosan were discussed. This review also discussed the applications of grafted chitosan in the fields of drug delivery, food packaging, antimicrobial, and metal adsorption as well as dye removal.
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Affiliation(s)
- Deepak Kumar
- Department of Applied Chemistry, M J P Rohilkhand University, Bareilly 243006, UP, India; Department of Chemical Engineering, Indian Institute of Technology, Roorkee 247667, India.
| | - Sachin Gihar
- Department of Applied Chemistry, M J P Rohilkhand University, Bareilly 243006, UP, India
| | - Manoj Kumar Shrivash
- Department of Applied Scieneses, Indian Institute of Information Technology, Road Devghat, Jhalwa, Prayagraj, UP 2110151, India
| | - Pramendra Kumar
- Department of Applied Chemistry, M J P Rohilkhand University, Bareilly 243006, UP, India
| | - Patit Paban Kundu
- Department of Chemical Engineering, Indian Institute of Technology, Roorkee 247667, India
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14
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Ibrahim AG, Sayed AZ, Abd El-Wahab H, Sayah MM. Synthesis of a hydrogel by grafting of acrylamide-co-sodium methacrylate onto chitosan for effective adsorption of Fuchsin basic dye. Int J Biol Macromol 2020; 159:422-432. [DOI: 10.1016/j.ijbiomac.2020.05.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/02/2020] [Accepted: 05/05/2020] [Indexed: 10/24/2022]
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15
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An Y, Zheng H, Sun Q, Zheng X, Liu W, Tang X, Xiong Z. Two-step synthesis of a single-layer grafting self-floating adsorbent for anionic dyes adsorption, surface separation and concentration. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121262. [PMID: 31586922 DOI: 10.1016/j.jhazmat.2019.121262] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 09/09/2019] [Accepted: 09/19/2019] [Indexed: 05/26/2023]
Abstract
In the case of a sharp increase in the price of dyes, the dyes concentration of in wastewater is important for environmental protection and industrial costs reduction. In this study, we grafted single-layer amino groups onto the surface of the hollow glass microspheres by a two-step simple synthesis, and the anionic dyes adsorption process reaches equilibrium within 10 min. The as-synthesized adsorbent has self-floating ability to achieve high-efficiency surface solid-liquid separation with water. SEM, EDS, SBET, FT-IR, XPS, TGA characterizations results demonstrated the successful grafting of amino groups and the important role of the pretreatment process in the two-step synthesis. The results of adsorption isotherms and kinetics show the adsorption process belongs to single-layer adsorption with equal adsorption sites, and the adsorption capacities for acid orange 7 and amaranth reach 428.99 mg g-1 and 145.62 mg g-1, respectively. Regeneration of the adsorbent and concentration of the dye solutions can be achieved by dispersing the separated adsorbent in alkaline solution, the maximum concentrated concentration of acid orange 7 and amaranth was 6321.57 mg L-1 and 2431.84 mg L-1, respectively. This study provides new insights for the solid-liquid separation of water treatment agents and the resource regenerating of dyeing wastewater.
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Affiliation(s)
- Yanyan An
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China
| | - Huaili Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China.
| | - Qiang Sun
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Xinyu Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Wangqing Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Xiaomin Tang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Zikang Xiong
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
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An Y, Zheng H, Yu Z, Sun Y, Wang Y, Zhao C, Ding W. Functioned hollow glass microsphere as a self-floating adsorbent: Rapid and high-efficient removal of anionic dye. JOURNAL OF HAZARDOUS MATERIALS 2020; 381:120971. [PMID: 31421555 DOI: 10.1016/j.jhazmat.2019.120971] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 05/26/2023]
Abstract
Rapid, high-efficient adsorbents with efficient solid-liquid separation ability has broad application prospects in the treatment of dye wastewater. In this study, polydopamine and methacryloyloxyethyltrimethyl ammonium chloride were grafted onto hollow glass microspheres to prepare the enhanced polydopamine shell structure adsorbent with self-floating ability. Furthermore, the adsorbent achieves high-efficiency surface solid-liquid separation, which overcomes the disadvantages of the traditional separation methods. Characterizations of the as-synthesized microspheres were performed using various techniques such as SEM, EDS, BET, XPS, FT-IR, TGA and XRD. The adsorbent achieved rapid and high-efficient adsorption of alizarin cyanine green F via the interactions of electrostatic attracting and π-π stacking, and under the optimal experimental conditions, the removal efficiency of 0.10 m mol L-1 dye solution reaches 94.51%, and the adsorption process reaches equilibrium within 60 min. Adsorption isotherms and kinetics data of the adsorbent were well fitted by Langmuir isotherm and pseudo-second-order kinetic models, respectively. The as-synthesized adsorbent has excellent recyclability, and its adsorption performance can be maintained after 5 cycles of reuse. The self-floating adsorbent has great potential for the removal of dissolved contaminants and cost-effective separation.
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Affiliation(s)
- Yanyan An
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Huaili Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China.
| | - Zhishuang Yu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Yongjun Sun
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Yili Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Chun Zhao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China
| | - Wei Ding
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
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17
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Kiran, Sonker E, Tungala K, Krishnamoorthi S, Kumar K. Synthesis of IONP's decorated graft copolymers and study of their magnetic force–induced wastewater treatment. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kiran
- Applied Science DepartmentMadan Mohan Malaviya University of Technology Gorakhpur India
| | - Ekta Sonker
- Department of ChemistryDeen Dayal Upadhyay Gorakhpur University Gorakhpur India
| | - Kranthikumar Tungala
- Department of Chemistry, Ewing Christian CollegeUniversity of Allahabad Allahabad India
| | - S Krishnamoorthi
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi India
| | - Krishna Kumar
- Applied Science DepartmentMadan Mohan Malaviya University of Technology Gorakhpur India
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18
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Xiao C, Lin J. PAMPS-graft-Ni3Si2O5(OH)4 multiwalled nanotubes as a novel nano-sorbent for the effective removal of Pb(ii) ions. RSC Adv 2020; 10:7619-7627. [PMID: 35492162 PMCID: PMC9049933 DOI: 10.1039/c9ra10971d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 02/03/2020] [Indexed: 11/30/2022] Open
Abstract
The existence of Pb(ii) ions in water systems poses significant potential hazards to public health and the environment. In the present study, poly(2-acrylamido-2-methylpropanesulfonic acid) (PAMPS) brush-modified Ni3Si2O5(OH)4 nanotubes were prepared, and their adsorption efficiency against the Pb(ii) ions was investigated. The characterization results of FTIR spectroscopy, TGA, TEM, and XPS indicated the successful grafting of PAMPS on the surface of free Ni3Si2O5(OH)4 NTs, and the prepared PAMPS-g-Ni3Si2O5(OH)4 NTs exhibited a 6–8 nm grafting layer, which could provide abundant binding sites for metal adsorption. During the Pb(ii) removal process, a pH-dependent adsorption behavior was observed, and the adsorption processes fitted well with the pseudo-second-order kinetic model and the Langmuir isotherm model. Compared with unmodified Ni3Si2O5(OH)4, the PAMPS-g-Ni3Si2O5(OH)4 NTs exhibited obviously faster adsorption of Pb(ii) and higher equilibrium adsorption capacity for the removal of Pb(ii). The maximum adsorption capacity calculated via the Langmuir isotherm model was 0.653 mmol g−1 (135.3 mg g−1) at 298 K. In a metal coexisting system, the total adsorption capacity of the NTs was increased; this indicated the potential of the proposed NTs in the removal of Pb(ii) from metal coexisting wastewater. This study showed the significant potential of PAMPS-g-Ni3Si2O5(OH)4 NTs in the effective removal of Pb(ii). PAMPS-g-Ni3Si2O5(OH)4 NTs for the effective removal of Pb(ii).![]()
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Affiliation(s)
- Chunmei Xiao
- College of Materials Science & Engineering
- Huaqiao University
- China
- College of Chemical Engineering and Materials
- Quanzhou Normal University
| | - Jianming Lin
- College of Materials Science & Engineering
- Huaqiao University
- China
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19
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Fabrication of lightweight and reusable salicylaldehyde functionalized chitosan as adsorbent for dye removal and its mechanism. Int J Biol Macromol 2019; 141:626-635. [DOI: 10.1016/j.ijbiomac.2019.09.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 01/16/2023]
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20
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Super Effective Removal of Toxic Metals Water Pollutants Using Multi Functionalized Polyacrylonitrile and Arabic Gum Grafts. Polymers (Basel) 2019; 11:polym11121938. [PMID: 31775288 PMCID: PMC6960951 DOI: 10.3390/polym11121938] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/15/2019] [Accepted: 11/20/2019] [Indexed: 12/02/2022] Open
Abstract
Super adsorbent polymers can be considered to be a very efficient solution for wastewater treatment. In general, their adsorption capacities depend on the type and amount of the functional groups present on the surface of the polymers, while their economic value is affected by their cost. Therefore, this study aims to understand the effect of multi-functionalization of cheap Arabic gum on the adsorption capability toward heavy metals. Graft copolymers of polyacrylonitrile (PAN) onto Arabic gum (AG) were prepared in aqueous solution using (KMnO4/HNO3) as a redox initiator. Chemical modification of the graft copolymer was carried out by reaction with hydrazine hydrochloride followed by hydrolysis in the basic medium. The modified graft product was characterized by various techniques, such as Fourier transform infrared spectroscopy (FTIR), elemental analysis, scanning electron microscope (SEM), and X-ray powder diffraction (XRD). The modified graft copolymer was used to adsorb Pb2+, Cd2+ and Cu2+ from their aqueous solutions using batch extraction. Different parameters influence the uptake behavior, including contact time, pH, and the initial concentration of the metal ions; all of these were investigated. The kinetics were investigated using the pseudo first order and pseudo second order, and the equilibrium data were analyzed using the Langmuir and Freundlich model. The modified graft product showed the superadsorbent capacity to obtain maximum values (Qmax) 1017, 413 and 396 mg/g for Pb2+, Cd2+ and Cu2+, respectively. Acid treatment with 0.2 M HNO3 resulted in 96%, 99% and 99% metal recovery for the Pb2+, Cd2+ and Cu2+, respectively. This indicates the recyclability of product for further usage upon drying between treatments.
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21
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Preparation of magnetic activated carbon-chitosan nanocomposite for crystal violet adsorption. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0377-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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22
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23
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Zhou X, Xu M, Wang L, Liu X. The Adsorption of Methylene Blue by an Amphiphilic Block Co-Poly(Arylene Ether Nitrile) Microsphere-Based Adsorbent: Kinetic, Isotherm, Thermodynamic and Mechanistic Studies. NANOMATERIALS 2019; 9:nano9101356. [PMID: 31546667 PMCID: PMC6835929 DOI: 10.3390/nano9101356] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/19/2019] [Accepted: 09/19/2019] [Indexed: 11/16/2022]
Abstract
Dye pollution is a serious problem in modern society. We desired to develop an efficient adsorbent for the decontamination of discharged dyes. In this work, the polymeric microspheres derived from a kind of amphiphilic block of co-poly(arylene ether nitrile) (B-b-S-P) were prepared on the basis of “oil-in-water” (O/W) microemulsion method. The B-b-S-P microspheres were found competent to remove the cationic dye, methylene blue (MB); and various influential factors, such as contact time, initial concentration, solution pH and temperature were investigated. Results indicated that the maximum adsorption capacity of B-b-S-P microspheres for MB was 119.84 mg/g at 25 °C in neutral conditions. Adsorption kinetics and isotherm dates were well fitted to a pseudo-second-order kinetic model and the Langmuir isotherm model, and thermodynamic parameters implied that the adsorption process was endothermic. The B-b-S-P microspheres also exhibited a highly selective adsorption for cationic dye MB, even in the presence of anionic dye methyl orange (MO). In addition, the possible adsorption mechanism was studied, suggesting that the electrostatic interaction and π–π interaction could be the main force in the adsorption process.
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Affiliation(s)
- Xuefei Zhou
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Mingzhen Xu
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Lingling Wang
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Xiaobo Liu
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
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24
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An Y, Zheng H, Zheng X, Sun Q, Zhou Y. Use of a floating adsorbent to remove dyes from water: A novel efficient surface separation method. JOURNAL OF HAZARDOUS MATERIALS 2019; 375:138-148. [PMID: 31054531 DOI: 10.1016/j.jhazmat.2019.04.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/12/2019] [Accepted: 04/18/2019] [Indexed: 05/17/2023]
Abstract
In this study, our group grafted 2-acrylamido-2-methylpropane sulfonic acid (AMPS) onto the surface of hollow glass microspheres (HGM) and successfully prepared AMPS grafted floating adsorbent (AFA). The prepared AFA carries a large amount of negative charges, and the adsorptions of cationic dyes are achieved under the action of strong electrostatic interaction. Furthermore, due to the unique shell structure of AFA, it has a stable self-floating ability, which may change the traditional separation method to make the adsorbent easier to enrich and separate from water surface. Characterizations of AFA by scanning electron microscope, energy dispersive spectrometry, X-ray photoelectron spectroscopy. Fourier transform infrared spectra, Brunauer-Emmett-Teller surface areas, thermogravimetric analysis, and X-ray diffractometer shows the successful grafting of AMPS. Adsorption experiments confirmed that the adsorption capacities of AFA for methylene blue, malachite green, basic fuchsin and crystal violet under optimum conditions were 436.8 mg g-1, 637.6 mg g-1, 457.8 mg g-1, and 399.4 mg g-1, respectively. At the same time, AFA has excellent recyclability, and its adsorption capacity can be maintained after 6 cycles of reuse.
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Affiliation(s)
- Yanyan An
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Huaili Zheng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China.
| | - Xinyu Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Qiang Sun
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Yuhao Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
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25
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Janet Joshiba G, Senthil Kumar P, Christopher FC, Govindaraj BB. Insights of CMNPs in water pollution control. IET Nanobiotechnol 2019; 13:553-559. [PMID: 31432785 PMCID: PMC8675983 DOI: 10.1049/iet-nbt.2019.0030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024] Open
Abstract
The various toxic contaminants such as dyes, heavy metals, pesticides, rare-earth elements, and hazardous chemicals are the major threats to all the flora and fauna. Owing to the harmful ill effects caused by the toxic contaminants, it is necessary to eliminate these compounds from the authors' ecosystem. The chitosan magnetic nanomaterials (CMNPs) are one of the superior materials used in the wastewater treatment through various conventional technologies. The chitosan is a natural source obtained from the crustacean shells of crabs, prawns etc. The magnetic nanomaterial prepared by the reinforcement of chitosan is highly effective in the removal of heavy metals, dyes, organic matter, and harmful chemicals. It is used in various technologies such as adsorption, flocculation, immobilisation, photocatalytic technology, and bioremediation. This possesses unique surface and magnetic characteristics, Moreover, it is simple, economically feasible, and eco-friendly material used efficiently in wastewater treatment. This review paper depicts the overview of CMNP in the industrial effluent treatment.
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Affiliation(s)
- Ganesan Janet Joshiba
- Department of Chemical Engineering, SSN College of Engineering, Chennai 603 110, India
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26
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Yu S, Cui J, Jiang H, Zhong C, Meng J. Facile fabrication of functional chitosan microspheres and study on their effective cationic/anionic dyes removal from aqueous solution. Int J Biol Macromol 2019; 134:830-837. [DOI: 10.1016/j.ijbiomac.2019.04.208] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/14/2019] [Accepted: 04/30/2019] [Indexed: 12/19/2022]
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27
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Kinetics, thermodynamics, equilibrium isotherms, and reusability studies of cationic dye adsorption by magnetic alginate/oxidized multiwalled carbon nanotubes composites. Int J Biol Macromol 2019; 123:539-548. [DOI: 10.1016/j.ijbiomac.2018.11.102] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 10/22/2018] [Accepted: 11/12/2018] [Indexed: 11/22/2022]
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28
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Xu W, Wang Y, Wei X, Chen J, Xu P, Ni R, Meng J, Zhou Y. Fabrication of magnetic polymers based on deep eutectic solvent for separation of bovine hemoglobin via molecular imprinting technology. Anal Chim Acta 2019; 1048:1-11. [DOI: 10.1016/j.aca.2018.10.044] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/19/2018] [Accepted: 10/21/2018] [Indexed: 12/11/2022]
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29
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30
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Cui L, Gao S, Song X, Huang L, Dong H, Liu J, Chen F, Yu S. Preparation and characterization of chitosan membranes. RSC Adv 2018; 8:28433-28439. [PMID: 35542487 PMCID: PMC9084291 DOI: 10.1039/c8ra05526b] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/30/2018] [Indexed: 01/05/2023] Open
Abstract
The present study investigates a new method for preparing chitosan membranes. The thus-prepared film was moderately thick and had a smooth surface, without curling.
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Affiliation(s)
- Luqing Cui
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Shanshan Gao
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Xiaoming Song
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Lianqing Huang
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Hehe Dong
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Jinling Liu
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Fushan Chen
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Shitao Yu
- Shandong Provincial Key Laboratory of Biochemical Engineering
- College of Marine Science and Biological Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
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