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Zhang X, Qi X, Ouyang J, Zuo Y, Ma Q, Tan H, Guo X, Wu Y. Fluorescent cellulose nanofibrils-based hydrogel incorporating MIL-125-NH 2 for effective adsorption and detection of iodide ion. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134758. [PMID: 38820756 DOI: 10.1016/j.jhazmat.2024.134758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/19/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
To remove iodine ion (I-) from wastewater, a novel hydrogel, the fluorescent cellulose nanofibrils-based hydrogel (FCNH), was synthesized to enable both detection and adsorption of I-. The FCNH comprised cellulose nanofibrils (CNs), silver nanoclusters (AgNCs), and MIL-125-NH2. It exhibited an excellent adsorption capacity for I-, with a maximum adsorption capacity of 373.7 mg/g, fitting both the Langmuir and pseudo-second-order models. Additionally, FCNH displayed excellent regeneration properties, retaining 88.0 % of its initial adsorption capacity after six adsorption-desorption cycles. Functioning as a fluorescent sensor, the synthesized FCNH enabled the detection of I- through dynamic quenching, with linear ranges of 5 to 200 mg/L and 0.2 to 1.0 μg/L, and a determination limit of 0.11 μg/L. Analysis of the adsorption and detection mechanisms revealed that FCNH's outstanding performance arose from its 3D porous structure comprising CNs, AgNCs, and MIL-125-NH2. Economic analysis indicated that FCNH was inexpensive compared to commercially available activated carbon. Thus, FCNH demonstrated significant potential as an economical and reusable adsorbent for iodine ion removal.
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Affiliation(s)
- Xuefeng Zhang
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xinmiao Qi
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jiayu Ouyang
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yingfeng Zuo
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qiang Ma
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Haining Tan
- National Glycoengineering Research Center, Shandong University, Qingdao 266237, China
| | - Xin Guo
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Yiqiang Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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2
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Wang X, Meng R, Zhao S, Jing Z, Jin Y, Zhang J, Du Q, Pi X, Chen L, Li Y. MIL-88A(Al)/chitosan/graphene oxide composite aerogel with hierarchical porosity for enhanced radioactive iodine adsorption. Int J Biol Macromol 2024:134456. [PMID: 39098697 DOI: 10.1016/j.ijbiomac.2024.134456] [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: 04/09/2024] [Revised: 07/17/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
To ensure the sustainable development of the nuclear industry, the effective capture of radioiodine from nuclear wastewater has attracted much attention. Herein, a novel MIL-88A(Al)/chitosan/graphene oxide (MCG) composite aerogel was prepared by using crosslinked chitosan and graphene oxide as the 3D network skeleton, and MIL-88A(Al) nanocrystalline particles were introduced into the skeleton by freeze-drying method. MIL-88A(Al) adsorption capacities for volatile and soluble iodine were 2.02 g g-1 and 850.00 mg g-1, respectively. Owing to the synergistic effect of MIL-88A(Al), GO, CS, and the hierarchically porous structures of the MCG aerogel, the adsorption capacities for volatile and soluble iodine by the MCG aerogel were increased to 2.62 g g-1 and 1072.60 mg g-1, respectively. Furthermore, the adsorption performance of the MCG aerogel for volatile and soluble iodine could be maintained at 83 % and 82 % after 5 cycles, suggesting excellent recoverability. Meanwhile, the adsorption mechanism studies showed the interactions between iodine and NH, AlO, and CO in MCG aerogel. Furthermore, the adsorption process is consistent with the Elovich kinetic and Sips isotherm models. MCG aerogels are potential candidates for enhanced radioiodine adsorption due to their high radioiodine capture performance and excellent recyclability.
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Affiliation(s)
- Xinxin Wang
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Ruixue Meng
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Shiyong Zhao
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Zhenyu Jing
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Yonghui Jin
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Jie Zhang
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Qiujiu Du
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Xinxin Pi
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China
| | - Long Chen
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China.
| | - Yanhui Li
- College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Rd, Qingdao 266071, PR China.
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Chen LH, Ban C, Helal MH, El-Bahy SM, Zeinhom M, Song S, Zhao YG, Lu Y. Preparation and modification of polymer microspheres, application in wastewater treatment: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121807. [PMID: 39025011 DOI: 10.1016/j.jenvman.2024.121807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/19/2024] [Accepted: 07/07/2024] [Indexed: 07/20/2024]
Abstract
The removal of various pollutants from water is necessary due to the increasing requirements for the removal of various pollutants from wastewater and the quality of drinking water. Polymer microspheres are regarded as exemplary adsorbent materials due to their high adsorption efficiency, excellent adsorption performance, and ease of handling. Herein, the advantages and disadvantages of different preparation methods, modifications, applications and the current research status of polymer microspheres are summarized at large. Furthermore, the enhanced performance of modified composite microspheres is emphasized, including adsorption efficiency, thermal stability, and significant improvements in physical and chemical properties. Subsequently, the current applications and potential of polymeric microspheres for wastewater treatment, including the removal of inorganic and organic pollutants, heavy metal ions, and other contaminants are summarized. Finally, future research directions for polymer microspheres are proposed, outlining the challenges and solutions associated with the application of polymer microspheres in wastewater treatment.
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Affiliation(s)
- Li-Hui Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China; College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Cao Ban
- Zhejiang Institute of Geosciences, Zhejiang, 310015, China
| | - Mohamed H Helal
- Department of Chemistry, Faculty of Arts and Science, Northern Border University, Rafha, Saudi Arabia
| | - Salah M El-Bahy
- Department of Chemistry, Turabah University College, Taif University, Turabah, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - M Zeinhom
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yong-Gang Zhao
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China.
| | - Yin Lu
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China.
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4
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Zhou X, Mao P, Jin H, Huang W, Gu A, Chen K, Yun S, Chen J, Yang Y. Cu/Al 2O 3 aerogels for high-efficiency and rapid iodide elimination from water. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130349. [PMID: 36370479 DOI: 10.1016/j.jhazmat.2022.130349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/22/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
Cu-based functional materials are excellent candidates for the elimination of iodine anions. However, the low utilization rate of Cu and its unsatisfactory adsorption performance limit its large-scale practical applications. This paper proposes a co-gelation method to obtain Cu/Al2O3 aerogels with a high specific area (537 m2/g). Cu/Al2O3 aerogels have a hierarchical porous structure and contain a high proportion of Cu (20.5 wt%). The high dispersibility of Cu, which is based on an in-situ gel process, provides conditions for the high-efficiency elimination of iodide anions. We conducted adsorption experiments that demonstrated that the fabricated Cu/Al2O3 aerogel had an ultrahigh adsorption capacity (407.6 mg/g) and a fast adsorption equilibrium time (0.5 h) for iodide anions. Additionally, the Cu/Al2O3 aerogel could selectively capture iodine anions even in the presence of high concentrations of competing ions (NO3-, SO42-, and Cl- at 60 mmol/L). Importantly, the aerogel can operate in a wide pH range of 3-11 without causing secondary pollution. This work demonstrates that low-cost Cu/Al2O3 aerogels exhibit great potential for eliminating radioactive iodine anions.
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Affiliation(s)
- Xinyu Zhou
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, School of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Pin Mao
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, School of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Huiran Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, China
| | - Wanxia Huang
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, School of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Aotian Gu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Kaiwei Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Shan Yun
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, School of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Jing Chen
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, School of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Yi Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China.
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5
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Elgarahy AM, Al-Bogam AS, Akhdhar A, Khan ZA, Elwakeel KZ. Silver ions immobilized on thiourea/formaldehyde resin for solid phase extraction of iodide ions from aqueous solution. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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6
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Li Q, Chang B, Dong H, Liu X. Functional microspheres for tissue regeneration. Bioact Mater 2022; 25:485-499. [PMID: 37056261 PMCID: PMC10087113 DOI: 10.1016/j.bioactmat.2022.07.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/13/2022] [Accepted: 07/26/2022] [Indexed: 11/02/2022] Open
Abstract
As a new type of injectable biomaterials, functional microspheres have attracted increasing attention in tissue regeneration because they possess some advantageous properties compared to other biomaterials, including hydrogels. A variety of bio-inspired microspheres with unique structures and properties have been developed as cellular carriers and drug delivery vehicles in recent years. In this review, we provide a comprehensive summary of the progress of functional and biodegradable microspheres that have been used for tissue regeneration over the last two decades. First, we briefly introduce the biomaterials and general methods for microsphere fabrication. Next, we focus on the newly developed technologies for preparing functional microspheres, including macroporous microspheres, nanofibrous microspheres, hollow microspheres, core-shell structured microspheres, and surface-modified functional microspheres. After that, we discuss the application of functional microspheres for tissue regeneration, specifically for bone, cartilage, dental, neural, cardiac, and skin tissue regeneration. Last, we present our perspectives and future directions of functional microspheres as injectable carriers for the future advancement of tissue regeneration.
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Zhang S, Lin A, Tao Z, Fu Y, Xiao L, Ruan G, Li Y. Microsphere‐containing hydrogel scaffolds for tissue engineering. Chem Asian J 2022; 17:e202200630. [DOI: 10.1002/asia.202200630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/25/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Shihao Zhang
- East China University of Science and Technology Engineering Research Center for Biomaterials of Ministry of Education CHINA
| | - Anqi Lin
- East China University of Science and Technology Engineering Research Center for Biomaterials of Ministry of Education CHINA
| | - Ziwei Tao
- East China University of Science and Technology Engineering Research Center for Biomaterials of Ministry of Education CHINA
| | - Yingying Fu
- East China University of Science and Technology Engineering Research Center for Biomaterials of Ministry of Education CHINA
| | - Lan Xiao
- Queensland University of Technology Centre for Biomedical Technologies AUSTRALIA
| | | | - Yulin Li
- East China University of Science and Technology Meilong Road 130 Shanghai CHINA
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8
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Adsorption-induced chemical reaction for in situ immobilization of radioactive anions on pristine β-Bi2O3 microflowers. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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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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Chen J, Jiao Y, Chen K, Wang P, Wang J, Mao P, Jiang J, He M, Liu Y, Gong C, Yang Y. Hierarchically mesoporous mixed copper oxide/calcined layered double hydroxides composites for iodide high-efficiency elimination. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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11
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Core-shell ZnO@Cu2O encapsulated Ag NPs nanocomposites for photooxidation-adsorption of iodide anions under visible light. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118328] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Silver-decorated ZIF-8 derived ZnO concave nanocubes for efficient photooxidation-adsorption of iodide anions: An in-depth experimental and theoretical investigation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122039] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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13
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Li M, Fan X, Mao Q, Li Q, Zhang X, He G, Zhang S, Zhang W. The hollow core-shell ferric oxide entrapped chitosan microcapsules as phosphate binders for phosphorus removal in vitro. Carbohydr Polym 2021; 257:117621. [PMID: 33541649 DOI: 10.1016/j.carbpol.2021.117621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 01/02/2021] [Accepted: 01/03/2021] [Indexed: 11/24/2022]
Abstract
Patients in hyperphosphatemia are orally prescribed with phosphate binders to excrete the non-metabolic phosphorus. Aiming for the bio-compatibility and binding efficacy, the Fe-based phosphate binders of low toxicity have been explored and improved. Herein, the hollow core-shell microcapsules as Fe@CH (nano ferric oxide entrapped in the polymerized chitosan) were constructed via emulsion interface polymerization, to enhance the phosphate binding from -NH2 group and iron complex, and limit iron leakage significantly. Via the double emulsion polymerization based on the primary Pickering emulsion stabilized by oleic acid-modified ferric oxide, Fe@CH performed as the rough polymerized-chitosan microcapsules entrapping well-distributed ferric oxide for the phosphate adsorption in vitro. At pH 3 and pH 5, Fe@CH bound phosphorus efficiently, with the capacity of 55 mg/g and 65 mg/g respectively, along with the excellent shell isolation from iron leakage and remarkable safety. Prospectively, the Fe@CH micro-sorbent is the proper candidate as the phosphate binder for hyperphosphatemia.
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Affiliation(s)
- Min Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116023, China
| | - Xianlin Fan
- School of Chemical Engineering, Dalian University of Technology, Panjin, 124221, China
| | - Qian Mao
- School of Chemical Engineering, Dalian University of Technology, Panjin, 124221, China
| | - Qing Li
- School of Chemical Engineering, Dalian University of Technology, Panjin, 124221, China
| | - Xiujuan Zhang
- School of Chemical Engineering, Dalian University of Technology, Panjin, 124221, China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116023, China; School of Chemical Engineering, Dalian University of Technology, Panjin, 124221, China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116023, China
| | - Wenjun Zhang
- School of Chemical Engineering, Dalian University of Technology, Panjin, 124221, China.
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Makhayeva DN, Irmukhametova GS, Khutoryanskiy VV. Polymeric Iodophors: Preparation, Properties, and Biomedical Applications. REVIEW JOURNAL OF CHEMISTRY 2020; 10:40-57. [PMID: 33362938 PMCID: PMC7749746 DOI: 10.1134/s2079978020010033] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/19/2020] [Accepted: 09/28/2020] [Indexed: 12/23/2022]
Abstract
The review summarizes the data on the main chemical and physiological properties of iodine and its capability of complexation with natural and synthetic polymers. Iodine is the best known antiseptic used to prevent and treat microbial infections. Its unique capability of complexation with certain polymers opens wide opportunities for targeted and prolonged delivery to target organs. Polymeric complexes with iodine have another color, other morphology, a higher electrical conductivity, and higher biological activity as compared with initial polymers. The formation of and ions is associated with iodine-polymer complexation. Iodine-containing biocompatible adhesive controlled-release formulations are designed as part of research into iodine-polymer complexes. The field is promising in terms of treating certain diseases because tolerance to iodine compounds does not usually develop in microbial cells.
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Affiliation(s)
- D. N. Makhayeva
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | | | - V. V. Khutoryanskiy
- University of Reading, Whiteknights, RG6 6AH Reading, Berkshire United Kingdom
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15
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Zhao Y, Gai L, Liu H, An Q, Xiao Z, Zhai S. Network interior and surface engineering of alginate-based beads using sorption affinity component for enhanced phosphate capture. Int J Biol Macromol 2020; 162:301-309. [PMID: 32574733 DOI: 10.1016/j.ijbiomac.2020.06.159] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/23/2020] [Accepted: 06/16/2020] [Indexed: 11/27/2022]
Abstract
In order to alleviate the environmental problems caused by excessive discharge of phosphate, an environmental friendly and highly efficient bio-sorbent (SA-La@PEI) for phosphate was fabricated by combing strategies of sorption affinity component mediated and poly(ethylenimine) surface engineering of alginate beads. Various characterization methods like SEM, FTIR, XRD and XPS were adopted to examine the morphology and functional group composition of SA-La@PEI. Through detailed tests, SA-La@PEI exhibited excellent adsorption performance of 121.2 mg/g, which was better than most published materials. More importantly, the outstanding phosphate selectivity of SA-La@PEI was exposed when NO3-, HCO3-, SO42- and Cl- were added to the phosphate solution. Considering the integrated components in composites, both chemical precipitation and electrostatic attraction can be considered as the dominant mechanisms of phosphate adsorption. Totally, as-prepared SA-La@PEI beads might be a promising sorbent for the decontamination of excessive phosphate because of its low-cost, excellent adsorption performance and mechanical strength.
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Affiliation(s)
- Yumeng Zhao
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Lixue Gai
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Hao Liu
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Qingda An
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, PR China.
| | - Zuoyi Xiao
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Shangru Zhai
- Faculty of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, PR China.
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