Materials Research Express
·
2021
·Vol. 8
·期 6
·065306
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IF 1.62
Shangjie Jiang,Shisheng Zhou
In this paper, a simple method for preparing high stability superhydrophobic paper with pH-induced wettability transition was proposed. Firstly, the pH-responsive monomer 2- (dimethylamino) ethyl methacrylate (DMAEMA), the silicon-containing crosslinking monomer 3-trimethoxysilyl propyl methacrylate (TSPM) and the fluorine-containing monomer hexafluorobutyl methacrylate (HFMA) were polymerized to prepare the pH-responsive polymer PHFMA-PTSPM-PDMAEMA. Afterwards, the amino-modified SiO2 was grafted onto the polymer to provide roughness and then coated on the paper to prepare the superhydrophobic paper with pH-responsive properties. Further research found that the modified paper prepared by this method not only has strong stability and transparency, but also can realize the reversible regulation of superhydrophobic & lipophilic and super-oleophobic & hydrophilic properties under different pH-induction, and it has important application value in the field of oil-water separation in industrial applications.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
ACS Omega
·
2021
·
IF 3.512
Shangjie Jiang,Shisheng Zhou,Bin Du,Rubai Luo
In this paper, a method for preparing a high-stability superhydrophobic paper with temperature-induced wettability transition is proposed. First, a temperature-responsive superhydrophobic triblock polymer PHFMA–PTSPM–PNIPAAm was prepared by one-step polymerization of TSPM, HFMA, and NIPAAm in a mass ratio of 0.3:0.3:0.3, then a superhydrophobic paper with a good temperature response was successfully prepared by grafting amino-modified SiO2 with the polymer to modify the surface of the paper. A further study found that when the mass ratio of amino-modified SiO2 to polymer is 0.2, the coating has good superhydrophobicity and transparency. What is more, the prepared modified paper is in a superhydrophobic state when the temperature is higher than 32 °C, and is in a superhydrophilic state when it is lower than 32 °C, which can realize free conversion between superhydrophobic and superhydrophilic states. In addition, the superhydrophobic paper prepared by this method not only has high oil–water separation efficiency, and the superhydrophobic coating shows good stability and transparency, but also has low requirements of environmental conditions for preparation, relatively simple preparation process, and strong repeatability, and it has a very broad application prospect.
研究领域:
材料科学
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表面化学
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DOI
高影响因子
CELLULOSE
·
2022
·Vol. 30
·期 4
·2427-2440
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IF 6.123
Ye Mengting,Tian Zhongjian,Wang Shengdan,Ji Xingxiang,Wang Dongxing,Ci Xiaolei
As non-biodegradable single-use plastic packaging products have been restricted in recent years, paper-based materials have attracted considerable attention owing to their environmental benefits. However, the hydrophilic nature of paper-based materials limits their application as replacements for non-biodegradable plastics. In this study, an environmentally friendly and multifunctional superhydrophobic paper was developed using silane-modified superhydrophobic nanofibrillated cellulose (M-NFC) via a simple spraying method. This paper can reduce the white pollution caused by non-degradable single-use plastic packaging products. Upon spraying the base paper with 1.5 g/m 2 of M-NFC, the coated paper (CP) exhibited excellent superhydrophobicity (water contact angle of 160°), water repellency (Cobb value of 7.5 g/m 2 ), strong durability to sandpaper abrasion, finger-wipe, bending, folding, and sustained exposure to corrosion media (HCl with a pH of 1, NaOH with a pH of 10, high temperature treatment at 180 °C, and ultraviolet irradiation). Additionally, the CP surface directly prevented the adhesion of S. aureus and E. coli and also indirectly repelled solid contaminants upon washing with water, thereby demonstrating highly efficient antibacterial and anti-fouling properties. The durable and multifunctional superhydrophobic paper developed in this study provides a novel direction for solving white pollution and also presents a new research pathway for the potential applications of paper-based materials. Graphical abstract
研究领域:
材料科学
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环境科学
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生物学
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DOI
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Zhiwei He,Hanqing Wu,Zhen Shi,Xianming Gao,Yuping Sun,Xianguo Liu
Oceanic oil spill and the discharge of industrial oily wastewaters can cause significant threats to the ecological environment and human health. Herein, we design a durable TiO2/PDA-based superhydrophobic paper for efficient oil/water separation. Bioinspired from mussel adhesive proteins, the mechanical durability of the as-prepared superhydrophobic paper is enhanced by the deposition of polydopamine (PDA) onto cellulosic fibers via self-polymerization of dopamine. The TiO2/PDA-based superhydrophobic paper shows a high water contact angle of 168.2° and an oil contact angle of ∼0°, exhibiting excellent superhydrophobicity and superoleophilicity. Furthermore, the as-prepared superhydrophobic paper possesses excellent chemical stability, thermal stability, and mechanical durability in terms of being immersed in corrosive solutions and solvents and boiling water and being subjected to the sandpaper abrasion test, respectively. More importantly, the separation efficiency of the TiO2/PDA-based superhydrophobic paper for an oil/water mixture is 97.2%, and it maintains a separation efficiency above 94.3% even after 15 cyclic separation processes. Furthermore, the separation efficiency for water-in-oil emulsions is higher than 93.7% after 15 cyclic separation tests, showing its excellent recyclable stability for water-in-oil emulsions. Therefore, the rationally designed TiO2/PDA-based superhydrophobic paper shows great potential in the practical applications of self-cleaning, antifouling, and oil/water separation.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
Materials
·
2021
·Vol. 14
·期 16
·4638
·
IF 3.623
Shangjie Jiang,Shisheng Zhou,Bin Du
In this study, the polymer PTSPM-PMETAC with anion adsorption properties was prepared by a one-step method, then the amino-modified nano-SiO2was grafted onto the polymer to improve the roughness of the surface and enhance the stability of superhydrophobic properties, and a high-stability superhydrophobic paper with ion-induced wettability transition properties was successfully prepared. The study found that the paper can realize the reversible control of surface wettability through the exchange between the anions PF6−and Cl−adsorbed on the surface of PMETAC, and further investigation of the effect of different solvents on the ion exchange properties found that water was the poor solvent for ion exchange, while the mixtures of methanol, acetone, and methanol & water were the good solvent. On the whole, the preparation of superhydrophobic paper by this method not only simple in preparation process, low in cost and strong in universality, but also the prepared superhydrophobic paper has high transparency and good stability, which has great application potential in industrial production.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2016
·
IF 4.219
Hui Li,Jin Yang,Pan Li,Tianqing Lan,Lincai Peng
We proposed a green and facile method to fabricate superhydrophobic paper in this study, which is layer-by-layer (LBL) deposition of TiO 2 nanoparticles/sodium alginate (ALG) multilayers on paper surface followed by an adsorption treatment of colloidal carnauba wax. The formation of TiO 2 /ALG multilayers on paper surface was characterized by X-ray photoelectron spectroscopy (XPS), zeta potential measurement, scanning electron microscopy (SEM) and atomic force microscopy (AFM), respectively. The wetting property of modified paper was investigated by water contact angle (WCA) measurement. Moreover, the modified paper tensile strength has been evaluated. The results showed that WCA of paper modified with a wax-treated (TiO 2 /ALG) 3.5 multilayer reached up to 151.5°, and this obtained superhydrophobic paper exhibited improved tensile strength (increased by 4.1% compared to the pristine paper), excellent moisture-proofing property and high strength stability under high relative humidity condition, which might has a great potential for use in the liquid paper packaging and moisture-proof paper packaging.
研究领域:
材料科学
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表面工程
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产品关联
DOI
PubMed
高影响因子
Biomicrofluidics
·
2015
·Vol. 9
·期 4
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IF 3.357
Cai Longfei,Zhong Minghua,Li Huolin,Xu Chunxiu,Yuan Biyu
We describe a simple and cost-effective strategy for rapid fabrication of microfluidic paper-based analytical devices and valves by inkjet printing. NaOH aqueous solution was printed onto a hydrophobic filter paper, which was previously obtained by soaking in a trimethoxyoctadecylsilane-heptane solution, allowing selective wet etching of hydrophobic cellulose to create hydrophilic-hydrophobic contrast with a relatively good resolution. Hexadecyltrimethylammonium bromide (CTMAB)-ethanol solution was printed onto hydrophobic paper to fabricate temperature-controlled valves. At low temperature, CTMAB deposited on the paper is insoluble in aqueous fluid, thus the paper remains hydrophobic. At high temperature, CTMAB becomes soluble so the CTMAB-deposited channel becomes hydrophilic, allowing the wicking of aqueous solution through the valve. We believe that this strategy will be very attractive for the development of simple micro analytical devices for point-of-care applications, including diagnostic testing, food safety control, and environmental monitoring.
研究领域:
分析化学
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生物医学工程
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DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2024
·
IF 6.5
Chengmin Hou,Ze Fan,Jiaqi Yang
Most of the super hydrophobic paper surfaces prepared at present will change the original properties of the paper and can not be used for oil-water separation continuously. There is not yet much systematic research on super hydrophobic modification of paper-based materials. The use of polymers and inorganic fillers for synergistic modification is also relatively rare. In this paper, fluorine-containing epoxy polymer P(GMA- r -DFMA) and KH550 modified nano-SiO 2 were mixed to obtain an organic-inorganic hybrid super hydrophobic solution, which was chemically cross-linked to the surface of paper fibers to form a micro- and nano-thin coating to construct a super hydrophobic surface , but the original properties of the paper remain unchanged. The optimal parameters (polymer concentration, soaking time, drying time, drying temperature) for building super hydrophobic surface on paper were explored, and the optimal conditions are the polymer concentration of 7 mg/mL, soaking time of 5 h, drying time of 6 h, drying temperature of 100 °C. Under the optimum conditions, the water contact angle of the modified paper surface is 164 ± 2 o and the water rolling angle is 5 ± 2 o . The surface of the super hydrophobic modified paper contaminated with toner can be self-cleaned by water droplets. Compared with the unmodified paper, the whiteness, smoothness and glossiness of the surface of the super hydrophobic modified paper have not changed greatly. When the oils were n -hexane, n -octane and trichloromethane, the oil-water separation efficiency of the modified paper could reach 99.9 %, 99.9 % and 98 %, and the effects were stable. Super hydrophobic modified paper in water formed a large number of bubbles on its surface, resulting in silver mirror phenomenon. SEM results showed that the pore structure of the paper was not changed after modification. The surface of the original paper fiber is very smooth, but the surface of the super hydrophobic modified paper fiber has a large number of micro and nano protrusions.
研究领域:
材料科学
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表面化学
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产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2023
·
IF 4.6
Xin Li,Xiaodong Chen,Cailing Zhao,Xiaoming Luo,Yan Jiang,Jianglin Zhu,Hongwen Zhang
In this work, we developed a facile and effective strategy to fabricate superhydrophobic paper based on micro-nano structure by the synergistic effect of nanoparticles and microporous made by breath figure method, which realized the in-situ self-assembly and integration of amphiphilic copolymer of Poly(St-co-HEMA), nano silica particles (SiO 2 ) and polydimethylsiloxane (PDMS). Furthermore, the chemical composition of copolymer, surface morphology and wettability were well characterized by FTIR, 1 HNMR, GPC , SEM and water contact angle measurements, respectively. The molar ratio of St to HEMA reached 15:1 and the concentrations of SiO 2 achieved 15 mg/ml were identified to be the most effective system, which possessed outstanding water repellency with a CA of 165° and a SA of 2° and good self-cleaning ability. Besides, the as-prepared paper maintained the repellency to water under extreme conditions, including low-high temperature, strong acidic or alkaline solutions, ultrasonic treatment and cyclic sandpaper abrasion. Importantly, the superhydrophobicity paper could be utilized as effective functional nanomaterials for the separation of water-oil mixture with efficiency above 90% and repeatable for at least 20 times.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
CELLULOSE
·
2016
·Vol. 23
·期 3
·2073-2085
·
IF 3.195
Peng Lincai,Meng Yahong,Li Hui
Interest in superhydrophobic paper is growing, and efforts have been made to prepare superhydrophobic paper with an improved physical strength property. This study reported a facile method for fabricating a superhydrophobic paper with enhanced physical strength through layer-by-layer self-assembly of poly(allylamine hydrochloride) (PAH) and lignosulfonates-amine (LSA) on cellulose fiber surfaces, followed by a heat treatment at 160 °C for 30 min. The formation of PAH/LSA multilayers on cellulose fiber surfaces was confirmed by X-ray photoelectron spectroscopy (XPS), zeta potential measurement and atomic force microscopy (AFM). The XPS results showed that the contents of the two characteristic elements (i.e., Cl and S) increased with increasing bilayer numbers. The zeta potential of modified fibers was regularly inversed after each layer deposition. The AFM phase image revealed that the surface root-mean-square roughness of modified cellulose increased along with the increasing bilayer number. Moreover, the wetting properties and physical strength of handsheets prepared from modified cellulose fibers with and without heat treatment were tested, respectively. The result showed that the water contact angle was higher when LSA was in the outermost layer than when PAH was in the outermost layer, and the heat treatment improved the hydrophobicity for all the handsheets. The non-heat-treated handsheet prepared from (PAH/LSA) 5 multilayer-modified fibers gave a water contact angle of 120.3º, and then after heat treatment, the contact angle reached up to 151.7º, indicating that high temperature treatment induced the most hydrophobic long chain groups in LSA macromolecules orientated to the multilayer-air interface. The tensile strength properties of both non-heat-treated and heat-treated handsheets made from PAH/LSA-modified fibers were significantly enhanced. When a (PAH/LSA) 5 multilayer was deposited on the cellulose fiber surface, the tensile strength increased by 33.9 % for non-heat-treated handsheets and by 57.8 % for heat-treated handsheets compared to that of handsheets made from original fibers, respectively.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 14
·8008-8015
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IF 3.119
Xuewei Ruan,Tiancheng Xu,Dingjiang Chen,Ziwen Ruan,Haitu Hu
Although various filtration materials with (super)wetting properties have been fabricated for effective oil/water separation, eco-friendly and low-cost materials are still highly desired. This work details the facile preparation of efficient oil–water separation papers with superhydrophobic properties that successfully combine micro/nanoscale hierarchical particles and low surface energy components with porous substrates. The superhydrophilic papers were coated with a polydopamine layer and then immersed in the mixture of polydimethylsiloxane (PDMS) and hydrophobic-silica nanoparticles. The resultant paper can separate oil–water mixtures under gravity driving conditions, where heavy oil penetrates through the sample and water is collected on the surface. And the as-prepared sample had favorable separation efficiency (>99%). More importantly, the oil flux almost remained at the original value after 10 cycles, indicating excellent recyclability. In addition, the as-prepared paper exhibits good stability in acidic, alkaline and salty media.
研究领域:
材料科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Hui Li,Yiding Luo,Fuyou Yu,Lincai Peng
We fabricated robust and magnetic superhydrophobic papers by a facile and scalable one-step spray-coating method for efficient oil-water separation. The coating was consisted of epoxy resin (EP), polydimethylsiloxane (PDMS), Fe 3 O 4 and SiO 2 nanoparticles . The surface characteristics of spray-coated papers were systematically investigated. The obtained EP@PDMS@Fe 3 O 4 @SiO 2 -coated paper possessed a water contact angle of 160º, fast magnetic response, excellent self-cleaning and anti-bacterial adhesion performance. The EP@PDMS@Fe 3 O 4 @SiO 2 -coated paper achieved effective recovery of oil from water as a magnetic-controlled vessel and efficient gravity-driven separation of oil-water mixture and surfactant-stabilized oil-water emulsion as a filtering material. Moreover, EP@PDMS@Fe 3 O 4 @SiO 2 -coated paper exhibited excellent mechanical and chemical stability. Overall, we believe that the robust, magnetic and superhydrophobic papers prepared by a facilely scalable one-step spray-coating method in this study will have a promising application prospect in oily wastewater treatment and oil spill cleanup.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）