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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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Li J, Gao J, Fang J, Ling T, Xia M, Cao X, Han Z, Chen Y. Environmental-friendly regenerated lignocellulose functionalized cotton fabric to prepare multi-functional degradable membrane for efficient oil-water separation and solar seawater desalination. Sci Rep 2023; 13:5251. [PMID: 37002350 PMCID: PMC10066188 DOI: 10.1038/s41598-023-32566-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
Freshwater pollution and shortage have become an imminent problem. Therefore, it is necessary to develop a multi-functional membrane for the production of fresh water. In this work, the regenerated lignocellulose modified cotton fabric was developed as a novel, multi-functional and degradable membrane (LCPT@CF) for efficient oil-water separation and solar steam generation for the first time. The fabrication method has the merits of simple, environmentally friendly and cost effective. The regenerated lignocellulose was adhered on the surface of cotton fabric by tannic acid and polyvinyl alcohol complexes tightly, and the multilayered structures of the LCPT@CF can be formed, which endowed the membranes with underwater superoleophobic property and durability. The underwater superoleophobic property enabled LCPT@CF to purify various kinds of oil-in-water emulsions with a separation efficiency of more than 99.90%. Moreover, benefiting from the excellent photothermal conversion capacity of regenerated lignocellulose, the LCPT@CF achieved high evaporation rate of 1.39 kg m-2 h-1 and favorable evaporation efficiency of 84% under 1 sun illumination, and the LCPT@CF also presented excellent salt-resistance for evaporating seawater for 20 cycles, without salt accumulation. More importantly, the LCPT@CF could be naturally degradable by microorganisms in the natural condition within 3 months, which had outstanding environmental friendliness. These above results demonstrated that the green and efficient LCPT@CF could play great potential in oil-water separation and sewage purification.
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Affiliation(s)
- Jiangyi Li
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Junkai Gao
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Jiangyu Fang
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Tian Ling
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Mengsheng Xia
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Xue Cao
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Zhi Han
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Yan Chen
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China.
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Xie H, Chen B, Lin H, Li R, Shen L, Yu G, Yang L. Efficient oil-water emulsion treatment via novel composite membranes fabricated by CaCO 3-based biomineralization and TA-Ti(IV) coating strategy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159183. [PMID: 36202361 DOI: 10.1016/j.scitotenv.2022.159183] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Continuous increasing discharge of industrial oily wastewater and frequent occurrence of oil spill accidents have taken heavy tolls on global environment and human health. Organic-inorganic modifications can fabricate superhydrophilic/submerged superoleophobic membranes for efficient oil-water separation/treatment though they still suffer from complex operation, non-environmental friendliness, expensive cost or uneven distribution. Herein, a new strategy regarding tannic acid (TA)-Ti(IV) coating and CaCO3-based biomineralization through simple inkjet printing processes was proposed to modify polyvinylidene fluoride (PVDF) membrane, endowing the membrane with high hydrophilicity (water contact angle (WCA) decreased from 86.01° to 14.94°) and underwater superoleophobicity (underwater contact angle (UOCA) > 155°). The optimized TA-Ti(IV)-CaCO3 modified membrane possessed perfect water permeation to various oil/water emulsions (e.g., 355.7 L·m-2·h-1 for gasoline emulsion) under gravity with superior separation efficiency (>98.8 %), leading the way in oil/water emulsion separation performance of PVDF membranes modified with polyphenolic surfaces to our knowledge. Moreover, the modified membrane displayed rather high flux recovery after eight cycles of filtration while maintaining the original excellent separation efficiency. The modification process proposed in this study is almost independent of the nature of the substrate, and meets the demand for simple, inexpensive, rapid preparation of highly hydrophilic antifouling membranes, showing abroad application prospect for oil-water emulsion separation/treatment.
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Affiliation(s)
- Hongli Xie
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Binghong Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Renjie Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Genying Yu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Lining Yang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
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Chen Y, Liu H, Xia M, Cai M, Nie Z, Gao J. Green multifunctional PVA composite hydrogel-membrane for the efficient purification of emulsified oil wastewater containing Pb 2+ ions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159271. [PMID: 36209877 DOI: 10.1016/j.scitotenv.2022.159271] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/02/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
To date, most existing engineering materials have difficulty simultaneously separating oil/water and removing heavy metals from complex oily wastewater. In response to this challenge, a novel multifunctional composite hydrogel membrane (named PVA-CS-LDHs) was fabricated by incorporating chitosan (CS) and nanohydrotalcite (LDHs) into a polyvinyl alcohol (PVA) hydrogel. This material was developed using an easy yet versatile strategy of freezing and salting-out, which can enable the formation of a PVA-CS-LDH hydrogel membrane in one step and endow the PVA-CS-LDHs with high strength, excellent stretchability, favourable shape recoverability, and an ideal 3D microstructure. The PVA-CS-LDH membrane can purify emulsified oil and metal ions simultaneously with a separation efficiency of 99.89 % for emulsified oil and a removal efficiency of 97.44 % for Pb2+ ions. Additionally, the high-efficiency, multifunctional, high-antifouling and eco-friendly properties of the PVA-CS-LDH membrane make it a promising hydrogel material for both emulsified oil separation and heavy metal ion removal. Thus, this material provides critical application potential that can address scientific and technological challenges in complex oily wastewater purification.
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Affiliation(s)
- Yan Chen
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Hong Liu
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Mengsheng Xia
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Miaomiao Cai
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Zeguang Nie
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
| | - Junkai Gao
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China.
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Wei C, Wang CL, Hao YJ, Zhang X, Long JS, Lang WZ. Nature-inspired construction of poly (vinylidene fluoride) membranes through the coordination coating of tannic acid with copper ions for oil-in-water emulsions separation. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Xia M, Gao J, Cai M, Li J, Cao X, Liu H, Chen Y. Plant stratum corneum inspired high-strength hydrogel coating modified palm skin by freezing and salting out strategy for efficient gravity-driven oil/water separation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Xue J, Li J, Gao J, Wang M, Ma S. CoFe2O4 functionalized PVDF membrane for synchronous oil/water separation and peroxomonosulfate activation toward aromatic pollutants degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wen N, Song PS, Ni L, Chen J. Tannic acid-aminopropyltriethoxysilane co-deposition modified polymer membrane for α-glucosidase immobilization. J Chromatogr A 2022; 1683:463550. [DOI: 10.1016/j.chroma.2022.463550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/24/2022] [Accepted: 09/30/2022] [Indexed: 11/25/2022]
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Bio-inspired mineral-hydrogel hybrid coating on hydrophobic PVDF membrane boosting oil/water emulsion separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120383] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Wang Z, Gao J, Zhu L, Meng J, He F. Tannic acid-based functional coating: surface engineering of membranes for oil-in-water emulsion separation. Chem Commun (Camb) 2022; 58:12629-12641. [DOI: 10.1039/d2cc05102h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent progress in the tannic acid-based functional coating for surface engineering of membranes toward oil-in-water emulsion separation is summarized.
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Affiliation(s)
- Zhenxing Wang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Jie Gao
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Lin Zhu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Jinxuan Meng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Fang He
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
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