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Jing J, Liu Z, Fu Y, Liu H, Zhang X, Li M, Liu L, Wang H. Interfacial charge demulsification endowed dual-network photocatalytic hydrogen-bonded PVA@agarose membranes for oil-water separation. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135569. [PMID: 39178775 DOI: 10.1016/j.jhazmat.2024.135569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 08/16/2024] [Accepted: 08/16/2024] [Indexed: 08/26/2024]
Abstract
Hydrogel materials with hydrophilic cross-linked network exhibit remarkable super-wettability, enabling their widespread application in oily wastewater treatment. However, the single and loose structure lacks sufficient strength and porosity to resist long-term degradation. Herein, a structural synergistic molecular strategy was reported to introduce reinforcing phase structures and interfacial active sites into the polymer networks for long-term oil-water emulsion separation. The carbon skeleton was uniformly interspersed through the strongly hydrogen-bonded polymer chains via covalent bonds, resulting in a hydrogel network with high mechanical strength and exceptional flow conductivity, which maintained a separation flux of 1233 L m-2 h-1 after 20 separation cycles under gravitational force. Dense negative charges on the surface disrupted the internal charge stability of the oil-water emulsion, leading to remarkable demulsification with a separation efficiency exceeding 99 %. Simultaneously, the strong redox reaction of the photoheterojunction effectively removed organic dyes under visible light, enhancing the overall antifouling performance. This study provided a feasible strategy at the molecular level for optimizing the suitability of hydrogels for oil-water emulsion separation.
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Affiliation(s)
- Jing Jing
- College of New Energy & Materials, Northeast Petroleum University, Daqing 163318, PR China
| | - Zhanjian Liu
- College of New Energy & Materials, Northeast Petroleum University, Daqing 163318, PR China.
| | - Yuxin Fu
- College of New Energy & Materials, Northeast Petroleum University, Daqing 163318, PR China
| | - Haonan Liu
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, PR China
| | - Xiguang Zhang
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, PR China
| | - Meiling Li
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, PR China
| | - Liyan Liu
- School of Chemical Engineering and Technology and State Key Laboratory for Chemical Engineering, Tianjin University, Tianjin 300350, PR China
| | - Huaiyuan Wang
- School of Chemical Engineering and Technology and State Key Laboratory for Chemical Engineering, Tianjin University, Tianjin 300350, PR China.
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Wang C, Wang F, Zhang H, Zhang Y, Zhang C, Zang W, Peng M, Yang Y, Wang S, Xu C, Wu A, Zhang Y. Multifunctional polyaniline modified calcium alginate aerogel membrane with antibacterial, oil-water separation, dye and heavy metal ions removal properties for complex water purification. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172058. [PMID: 38552978 DOI: 10.1016/j.scitotenv.2024.172058] [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: 01/03/2024] [Revised: 03/20/2024] [Accepted: 03/26/2024] [Indexed: 04/08/2024]
Abstract
With the rapid development of urbanization, the discharge of industrial wastewater has led to increasingly critical water pollution issues. Additionally, heavy metals, organic dyes, microorganisms and oil pollution often coexist and have persistence and harmfulness. Developing materials that can treat these complex pollutants simultaneously has important practical significance. In this study, a calcium alginate-based aerogel membrane (PANI@CA membrane) was prepared by spraying, polymerization, Ca2+ cross-linking and freeze-drying using aniline and sodium alginate as raw materials. Oil-water emulsion can be separated by PANI@CA membrane only under gravity, and the separation efficiency was as high as 99 %. At the same time, the membrane can effectively intercept or adsorb organic dyes and heavy metal ions. The removal rates of methylene blue and Congo red were above 92 % and 63 % respectively even after ten times of cyclic filtration. The removal rate of Pb2+ was up to 95 %. In addition, PANI@CA membrane shows excellent photothermal conversion ability, and it can effectively kill Staphylococcus aureus under 808 nm laser irradiation. PANI@CA membrane has the advantages of low cost, simple preparation, good stability and high recycling ability, and has potential application prospects in wastewater treatment.
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Affiliation(s)
- Chaozhen Wang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fangfang Wang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Hao Zhang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Yuenan Zhang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenguang Zhang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Wen Zang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Minjie Peng
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Yiyu Yang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Shiwei Wang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chen Xu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yujie Zhang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, PR China; Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Zhao Q, Zhao L, Zhang Y, Chen W, Tang S. Design of smart temperature-sensitive terpolymeric hydrogel for multi-applications in liquid chromatography. J Chromatogr A 2024; 1722:464867. [PMID: 38598895 DOI: 10.1016/j.chroma.2024.464867] [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: 10/20/2023] [Revised: 03/27/2024] [Accepted: 04/01/2024] [Indexed: 04/12/2024]
Abstract
Hydrogels with a unique three-dimensional network structure have been widely used in a variety of fields. However, hydrogels are prone to swelling under water-rich conditions, which severely limits their application in liquid chromatography. Therefore, producing a hydrogel with reliable performance and good mechanical property is essential. Smart temperature-sensitive chromatographic packings have attracted extensive attentions in recent years. In this work, sodium 4-styrenesulfonate and 1-octadecene were introduced into the poly(N-isopropylacrylamide) hydrogel to improve mechanical property and separation performance. As a consequence, a smart temperature-sensitive terpolymeric hydrogel modified silica stationary phase (ION-hydrogel@SiO2) was synthesized for multimode liquid chromatographic separation. It was found that this new ION-hydrogel@SiO2 column exhibited excellent chromatographic separation ability for a wide range of analytes. To a certain extent, this new column has a higher chromatographic separation efficiency compared to the commercial C18 column and XAmide column. Moreover, the use of low proportion of organic phase in chromatographic separation is conducive to the realization of green chromatography. By investigating the chromatographic separation mechanism, it has been demonstrated that the hydrogen bonding interaction is primarily responsible for the temperature-sensitive behavior of the hydrogel. Finally, the ION-hydrogel@SiO2 column was used for the determination of pyridoxine in the commercially available tablet samples. In conclusion, this study presents a feasible idea for the development of novel copolymer hydrogels as liquid chromatographic stationary phases.
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Affiliation(s)
- Qian Zhao
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Key Laboratory of Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China
| | - Lulu Zhao
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Key Laboratory of Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China
| | - Yuefei Zhang
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Key Laboratory of Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China
| | - Wei Chen
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Key Laboratory of Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China
| | - Sheng Tang
- School of Chemistry and Environmental Engineering, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Key Laboratory of Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China.
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Raota CS, Crespo JDS, Baldasso C, Giovanela M. Development of a Green Polymeric Membrane for Sodium Diclofenac Removal from Aqueous Solutions. MEMBRANES 2023; 13:662. [PMID: 37505027 PMCID: PMC10383731 DOI: 10.3390/membranes13070662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 07/29/2023]
Abstract
Water-soluble polymers provide an alternative to organic solvent requirements in membrane manufacture, aiming at accomplishing the Green Chemistry principles. Poly(vinyl alcohol) (PVA) is a biodegradable and non-toxic polymer renowned for its solubility in water. However, PVA is little explored in membrane processes due to its hydrophilicity, which reduces its stability and performance. Crosslinking procedures through an esterification reaction with carboxylic acids can address this concern. For this, experimental design methodology and statistical analysis were employed to achieve the optimal crosslinking conditions of PVA with citric acid as a crosslinker, aiming at the best permeate production and sodium diclofenac (DCF) removal from water. The membranes were produced following an experimental design and characterized using multiple techniques to understand the effect of crosslinking on the membrane performance. Characterization and filtration results demonstrated that crosslinking regulates the membranes' properties, and the optimized conditions (crosslinking at 110 °C for 110 min) produced a membrane able to remove 44% DCF from water with a permeate production of 2.2 L m-2 h-1 at 3 bar, comparable to commercial loose nanofiltration membranes. This study contributes to a more profound knowledge of green membranes to make water treatment a sustainable practice in the near future.
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Affiliation(s)
- Camila Suliani Raota
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Rua Franscisco Getúlio Vargas, 1130, Caxias do Sul 95070-560, Brazil
| | - Janaina da Silva Crespo
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Rua Franscisco Getúlio Vargas, 1130, Caxias do Sul 95070-560, Brazil
| | - Camila Baldasso
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Rua Franscisco Getúlio Vargas, 1130, Caxias do Sul 95070-560, Brazil
| | - Marcelo Giovanela
- Área do Conhecimento de Ciências Exatas e Engenharias, Universidade de Caxias do Sul, Rua Franscisco Getúlio Vargas, 1130, Caxias do Sul 95070-560, Brazil
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Gao J, Xia M, Cao Y, Yang Q, Xu P, Liu H, Chen Y. Regulable preparation of silk fibroin composite cryogel by dual-directional crosslink for achieving self-cleaning, superelasticity and multifunctional water purification. JOURNAL OF HAZARDOUS MATERIALS 2023; 453:131383. [PMID: 37080023 DOI: 10.1016/j.jhazmat.2023.131383] [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: 02/14/2023] [Revised: 03/25/2023] [Accepted: 04/05/2023] [Indexed: 05/03/2023]
Abstract
Recently, the cryogel as a special type of hydrogel was widely used in the field of medicine due to its porous structure and good biocompatibilit. However, great challenges existed for its irregular pore size and incompressible property, limiting its application in other fields. In this study, a novel silk fibroin-based cryogel (named SF@PVA/CS) with regulable pore size, excellent elasticity and durability was constructed using a green dual-directional crosslink strategy. The SF@PVA/CS was prepared by using silk fibroin (SF) as bone scaffold, and chitosan (CS) and polyvinyl alcohol (PVA) as polymer hydrogel which was introduced into the inner bone scaffold of SF. Such a brand-new cryogel possessed three-dimensional dual network structure, which can overcome the shortcoming of unregulatable pore size and incompressibility of traditional cryogel. Additionally, the developed SF@PVA/CS membrane was used for water purification for the first time, which exhibited superior selective permeation, excellent anti-fouling and brilliant self-cleaning property, and it can achieve the purification of both oil/water emulsion and methylene blue solution. This study expanded the application of SF-based cryogel, providing a novel routine for designing new-type composite cryogel and widening the application of dual-directional crosslink strategy developed in this study for facilitating the purification of wastewater.
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Affiliation(s)
- Junkai Gao
- School of Naval Architecture and Marinetime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Mengsheng Xia
- School of Naval Architecture and Marinetime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Yan Cao
- School of Naval Architecture and Marinetime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Qian Yang
- School of Naval Architecture and Marinetime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Pengtao Xu
- School of Naval Architecture and Marinetime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Hong Liu
- School of Naval Architecture and Marinetime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Yan Chen
- School of Naval Architecture and Marinetime, Zhejiang Ocean University, Zhoushan 316022, China.
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