JOURNAL OF MATERIALS SCIENCE
·
2021
·Vol. 56
·期 21
·12183-12197
·
IF 4.22
Wang Haitao,Zhang Yunpeng,Xue Fengxin,Bai Wenxia,Shi Xueting,Liu Yanhua,Feng Libang
Nowadays, it has become an imminent challenge of developing a robust and efficient oil/organic solvent absorbing/releasing along with oil–water separating material. Herein, a simple and environment-friendly one-step immersion method is developed for fabricating superhydrophobic carbon felts with extraordinary properties. The as-prepared superhydrophobic carbon felts reveal outstanding durability and stability even exposed to various harsh environments, such as acid, base, salt, organic solvent, and UV light for quite long time. The superhydrophobic carbon felts exhibit excellent fire resistance, and the materials can stand at least 5 times of ethanol-soaking and burning without marked influencing on the superhydrophobicity. Meanwhile, the resultant materials reveal outstanding oil adsorption and oil–water separation performance. The superhydrophobic carbon felt can still absorb 7 times its own mass of cooking oil even after 10 extrusion cycles. Moreover, the oil–water separation efficiency can still reach 98.85% after 10 times of separation. Consequently, the materials can be used in oil/organic solvent collection and oil–water separation successfully. Therefore, the simple, environment-friendly, cost-effective fabrication method together with the extraordinary durability and stability, excellent and efficient performance will find its potential applications in industrial production and environmental remediation. Graphical abstract A simple and environment-friendly one-step immersion method for fabricating superhydrophobic carbon felts is developed. The as-prepared superhydrophobic carbon felts reveal excellent fire resistance along with extraordinary durability and stability upon various harsh environments. Furthermore, the superhydrophobic carbon felts exhibit outstanding oil/organic solvent adsorption/releasing and oil–water separation performance.
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
SEPARATION AND PURIFICATION TECHNOLOGY
·
2019
·
IF 5.107
Zichao Yin,Yuhang Li,Tianwen Song,Mutai Bao,Yiming Li,Jinren Lu,Yang Li
The methods to modify commercially available sponge used for recovering spilled oil and organic solvent from water usually possess the drawbacks of high cost, complicated fabrication procedures and secondary pollution. Herein, a superhydrophobic magnetic melamine sponge (MS) was fabricated via in situ synthesis of Fe 3 O 4 particles and dip coating of Candelilla wax (CW). The facile modification process made a transition of MS from amphipathic nonmagnetic sponge to superhydrophobic magnetic sponge. Owning to the high porosity of MS, hierarchical microstructures of Fe 3 O 4 particles and hydrophobic hydrocarbon chain of CW, the modified MS possesses low bulk density (0.0173 g/mL), excellent absorption capacity (55–104 g/g), remote controllability, high water contact angle (WCA, 158.8°), good hydrophobicity maintenance and durability. The obtained sponge also has the abilities to continuously absorb and collect light oil from water surface assisted by a vacuum pump and to separate heavy oil under water as a filter driven by liquid weight. More importantly, our modification strategy may find a new way to prepare superhydrophobic sponge by extending the coating reagent to a series of plant waxes.
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
SEPARATION AND PURIFICATION TECHNOLOGY
·
2020
·
IF 5.774
Xiaofang Feng,Zongxue Yu,Runxuan Long,Yuxi Sun,Ming Wang,Xiuhui Li,Guangyong Zeng
Titanium carbide (MXene) sheet membranes have become attractive candidates in terms of solvent nanofiltration performance. Whereas, the low contaminant removal ability limited the practical application of MXene membranes in efficient separation. Here, the reduced graphene oxide (RGO)/polydopamine (PDA)/titanium carbide (MXene) composites were prepared by dopamine modification method. Then, the RGO/PDA/MXene composites were suction filtrated on a nylon membrane to construct the two-dimensional-two-dimensional (2D-2D) laminated composite membrane. The effects of MXene content on the surface hydrophilicity, dye retention and oil-water separation properties of the modified membrane were systematically studied. Among them, the RPM-8 membrane exhibited ultra-high separation effect (>96%) and excellent throughput (>200 L/m 2 ·h) for Methylene Blue (MB), Methyl Orange (MO), Methyl Red (MR), Congo Red (CO) and Evans Blue (EB). At the same time, the modified membrane shows very high oil-water separation effect on the emulsion (>97%). In addition, long-term cycle experiments have also revealed the stability of RGO/PDA/MXene composite membranes. The above results further illustrated the importance of the regular straight rigid channels of the composite membrane in separation performance. Therefore, RGO/PDA/MXene composite membrane has tremendous potential in practical applications.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Fangge Chen,Yanhong Li,Aisheng Huang
Because of the increase of industrial wastewater containing insoluble oil and oil discharged accidents, oil/water separation has turned out an exceedingly crucial and urgent issue in environmental protection. Therefore, it is terribly significant to develop a simple and effective technology for oil/water separation. Membrane separation has been well known as a promising method to remove oils from water due to its energy-efficiency and cost-effectiveness. In the present work, we report the synthesis of a hydrophobic zeolite FAU named F-FAU through a simple and effective post-synthetic modification. Firstly, a thin zeolite FAU layer is grown on the 3-aminopropyltriethoxysilane (APTES) modified stainless steel net (SSN) to form SSN supported FAU (SSN@FAU) coating. And then, a hydrophobic SSN@F-FAU coating is prepared through post modification of SSN@FAU coating with perfluorooctyltriethoxysilane (POTS). After POTS modification, the water contact angle (CA) of the SSN@FAU coating increases from 15° to 132° for SSN@F-FAU coating, while both morphology and structure of the SSN@FAU coating keep unchangeable. Attributing to the high hydrophobicity of the F-FAU coating, the SSN@F-FAU coating shows a wonderful oil/water separation performance, with oil/water separation efficiency of above 98.8 % and oil flux of up 50,000 L m −2 h -1 . After 50 cycles successive separation of hexane/water mixture, the separation efficiency of the SSN@F-FAU coating keeps constant (over 99.1 %), showing potential application for oil/water separation in industries. Further, hydrophobic SSN@F-LTA coating can be consistently prepared through post modification of SSN@LTA coating with POTS, and also shows a high oil/water separation performance, with oil/water separation efficiency above 99.0 % and oil flux over 40,000 L m −2 h -1 , confirming the universality of the preparation strategy.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
·
IF 3.131
Jiang Hu,Jundong Zhu,Chongwen Jiang,Tianyu Guo,Quzhi Song,Le Xie
Herein, a stable three-dimensional composite sponge with magnetic and superhydrophobic was prepared via a two-step process including self-polymerization of dopamine (DA) and anchoring of Fe 3 O 4 particles assisted by polydopamine (PDA) and polydimethylsiloxane (PDMS). The modified sponge exhibited high adsorption capacity (52.39–91.52 g/g) for diverse oils and organic solvents , which can be easily recovered in oil-water mixture under magnetism . The excellent properties were attributed to the synergistic effect of micro-nano structures and low surface energy, which were derived from the coatings of PDA and Fe 3 O 4 and hydrophobic methyl groups of PDMS, respectively. When the temperature of PDA coating was 40 °C, the water contact angle (WCA) of the prepared superhydrophobic sponge reached 152.74 ± 0.2°. More importantly, the present adsorbents possessed robust chemical, mechanical, and temperature stability at a harsh environmental and good reusability for oil-water separation after 12 cycles of repeated adsorption, which enable to deal with oil leakage under harsh conditions still maintaining the excellent performance.
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
JOURNAL OF MATERIALS SCIENCE
·
2019
·Vol. 54
·期 20
·13358-13367
·
IF 3.442
Zhang Rui,Wu Yuanpeng,Zhang Haiyan,Xue Shishan,Guo Meiling,Zhang Tao
In this work, we present a hydrophobic–oleophilic Fe foam for oil–water separation. Hydrophobic–oleophilic Fe foam was fabricated simply through dip-coating with n -dodecyl mercaptan. The morphology, chemical composition and water contact angle of the Fe foam were characterized. The Fe foam could absorb a variety of oils, such as diesel, toluene, xylene, cyclohexane, dodecyl methacrylate, crude oil, 1,2-dichloroethane, hexane and chloroform, these oils could be underwater or on water surface, and it exhibited excellent durability, verified by the high separation efficiency (more than 98.8% for a cyclohexane–water mixture) after reusing for 48 times. Furthermore, oil collection with the Fe foam could be controlled remotely using external magnetic field, and the Fe foam displayed high flux, good anti-corrosion and wear resistance. The simple and low-cost fabrication method enabled the Fe foam to be a promising candidate for large-scale oil–water separation and for remotely controllable water purification.
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
MATERIALS RESEARCH BULLETIN
·
2019
·
IF 3.355
Ni Wang,Ziwei Deng
The clean-up of oil spills is a worldwide challenge for the prevention of serious environmental pollution. Therefore, it is imperative to develop materials for oil-spill cleanup that have high absorption/separation capacity, good selectivity, controlled collection and easy recyclability. Here, we present a facile and low-cost approach for fabricating magnetic, durable, and superhydrophobic carbon sponges. The resultant carbon sponges feature fast magnetic response, excellent superhydrophobicity/superoleophilicity, high chemical resistance, environmental stability and mechanical durability, as well as high oil/water separation efficiency and oil absorbency. More importantly, given the magnetically controllable property endowed by magnetic particles to superhydrophobic carbon sponges, which act as magnetically controlled “smart absorbents”, the carbon sponges can therefore controllably and selectively adsorb oils from oil-water mixtures. Thus, our strategy may open up a new avenue for developing magnetic responsive intelligent oil sorbent materials suitable for practical applications in the fields of water remediation, oil spill clean-up and oil recovery.
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
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2019
·
IF 3.375
Jiahui Chen,Zihan Liu,Xiufang Wen,Shouping Xu,Feng Wang,Pihui Pi
Superamphiphobic materials have attracted lots of attention due to its wide applications in many fields. However, the preparation of most superamphiphobic materials was time-consuming and complicated. In this study, a durable superamphiphobic fabric was prepared by vapor–liquid sol–gel method to deposit silica with thiol (SiO2–SH) and thiol–ene click reaction to graft 1H,1H,2H,2H-heptadecafluorodecyl methacrylate (FMA). The superamphiphobic fabric can repel liquids with surface tension as low as 27.5 mN m–1. Importantly, the fabric can maintain high amphiphobicity after 15 laundry cycles, 40 tape-peeling cycles, 160 g of sand abrasion, 24 h UV irradiation, as well as immersion in acid/base solution for 12 h, 95 °C water for 6 h or 2 °C water for 24 h. What’s more, the fabric shows excellent self-cleaning and antifouling properties. After the superamphiphobic fabric was prewetted by ethanol, it shows superhydrophilicity/underwater superoleophobicity and superoleophilicity/underoil superhydrophobicity, which can be used for on-demand oil/water separation with high separation efficiency and outstanding reusability.
研究领域:
材料科学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2020
·
IF 3.784
Jiang Hu,Jundong Zhu,Shengzhuo Ge,Chongwen Jiang,Tianyu Guo,Tangping Peng,Tao Huang,Le Xie
Three-dimensional aerogels with hydrophobic and lipophilic properties have attracted wide attention in the effective cleaning of oil-spills. However, cost-effectiveness, biodegradability, and recycling are still challenging in the application of aerogels for oil-water separation. In this paper, we have prepared high biocompatibility, low cost, and hydrophobic composite aerogels (WCA = 148°) through directional freezing-drying technology by using chitosan (CS) as the skeleton substrate, reduced graphene oxide nanosheets (rGO) as enhancements and hydrophobic silicon particles/polydimethylsioxane (H-SiO 2 /PDMS) as the hydrophobic modifier. The composite aerogel prepared has good adsorption capacity (18–45 g/g), good chemical and thermal stability in a harsh environment. More importantly, the adsorbed organic solvents and oils adsorbed can be easily extruded from aerogels due to its excellent compressive properties. In addition, adsorption rate for pump oil and silicone oil is accelerated with the increase of temperature. The adsorption kinetics of aerogel on silicone oil and pump oil can be well fitted by pseudo-first order kinetic equation.
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
SURFACE & COATINGS TECHNOLOGY
·
2018
·
IF 2.906
Jiaoyuan Zhang,Rongrong Chen,Jingyuan Liu,Qi Liu,Jing Yu,Hongsen Zhang,Xiaoyan Jing,Milin Zhang,Jun Wang
In this work, superhydrophobic and superoleophilic nickel foam loaded with ZnO@Co 3 O 4 hierarchical structure was successfully fabricated via a simplified one-pot hydrothermal method , followed by a brief calcination process and, finally, superhydrophobically modification with hexadecyltrimethoxysilan (HDTMS). The as-prepared nickel foam showed excellent abrasion resistance , chemical stability and high oil-water separation efficiency. The chemical composition and morphologies were characterized by means of Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The sample we have manufactured proves to be a potential material for the separation of oil-water mixtures.
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
LANGMUIR
·
2022
·
IF 4.331
Jiwei Huang,Dandan Li,Langhuan Huang,Shaozao Tan,Ting Liu
In recent years, the discharge of industrial waste oil has increased and offshore oil leakage has occurred frequently, and thus water pollution has become a worldwide problem that attracts much attention. In this regard, a kind of oil-absorbing material with high oil-absorbing property and good mechanical property is urgently needed. Here, we reported a new type of aerogels with three-dimensional layered voids using natural bamboo powder, waste paper (WP), and graphene oxide (GO) as raw materials. The obtained aerogel had high adsorption capacity (87–121 g/g), compressibility, and high elasticity, which can separate oil from water and selectively absorb oil. This study provides not only a new treatment in agricultural waste treatment but also a facile, green, and low-cost approach to synthesize high-performance graphene-based oil absorbers, which might give us an effective solution for oil pollution of water resources worldwide.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2022
·
IF 3.898
Taoyan Mao,Runhui Xiao,Peng Liu,Jiale Chen,Junqiang Luo,Su Luo,Fengwei Xie,Cheng Zheng
Nowadays, oil contamination has become a major reason for water pollution, and presents a global environmental challenge. Although many efforts have been devoted to the fabrication of oil/water separation materials, their practical applications are still hindered by their weak durability, poor chemical tolerance, environmental resistance, and potential negative impact on health and the environment. To overcome these drawbacks, this work offers a facile method to fabricate the eco-friendly and durable oil/water separation membrane fabrics by alkaline hydrolysis and silicon polyurethane coating. The X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy results demonstrate that silicon polyurethane membrane could be coated onto the surface of hydrolyzed polyester fabric and form a micro-/nano-scaled hierarchical structure. Based on this, the modified fabric could have a stable superhydrophobic property with a water contact angle higher than 150°, even after repeated washing and mechanical abrasion 800 times, as well as chemical corrosion. Moreover, the modified fabrics show excellent oil/water separation efficiency of up to 99% for various types of oil–water mixture. Therefore, this durable, eco-friendly and cost-efficient superhydrophobic fabric has great potential in large-scale oil/water separation.
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）