CELLULOSE
·
2025
·
IF 4.8
Chen Zhibiao,Zhan Bin,Li Shuyi,Wei Dongsong,Zhou Wenting,Fang Zhengping,Liu Yan
With the escalating severity of oily wastewater discharge, the development of novel and efficient adsorption materials is an urgent necessity. Bio-based aerogels, due to their distinctive attributes, including low density, high porosity, sustainability, and safety, have emerged as ideal absorbents for oil spill remediation. In this study, aerogels with ultra-low density were prepared from the renewable biomass material, pectin, through an innovative ice/bubble dual-template method. In this process, with the help of sodium dodecyl sulfate, microbubbles were introduced by high-speed stirring to decrease the density of aerogels. At the same time, phytic acid also played a role in promoting pectin crosslinking and enhancing the flame-retardant properties of aerogels, significantly improving the safety of their transportation and application. After silane modification, the aerogel exhibited ultra-low density (10.91 mg/cm 3 ), exceptional superhydrophobicity (152°), outstanding oil absorption capacity (110 g/g), and flame retardancy. This work underscored the significant and promising prospects of bio-based aerogels in addressing oil pollution challenges, highlighting their potential as optimal candidates for sustainable and effective environmental remediation.
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
·
2019
·Vol. 12
·期 20
·3432
·
IF 2.972
Shumin Fan,Shuai Pei,Tianyu Shen,Guangri Xu,Yuanchao Li,Wenxiu Fan
In this paper, a novel superhydrophobic magnetic sawdust (SMSD) was fabricated as an oil sorbent. The SMSD was functionalized with Fe3O4nanoparticles using melamine formaldehyde resin (MFR) as a coupling agent and subsequently hydrophobically-treated with hexadecyltrimethoxysilane (HDTMS). The SMSD showed excellent superhydrophobicity with the water contact angle of 155.3 ± 0.9°. Meanwhile it had remarkable environmental durability, long-term stability, and mechanical durable properties. Taking advantage of its magnetic characteristics, the SMSD could be easily controlled to absorb oil to separate oil–water mixtures with high oil absorption capacity and good reusability. Moreover, the emulsion was successfully separated by SMSD, including water-in-oil and oil-in-water emulsions. This study developed an effective oil absorbent, which was low cost and environmentally-friendly.Keywords:sawdust;superhydrophobic;magnetic;oil absorption;emulsion separation
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
Polymers
·
2022
·Vol. 14
·期 21
·4579
·
IF 4.967
Yi Huang,Yucheng Wu,Hao Tao,Bihe Yuan
Increasing contamination risk from oil/organic liquid leakage creates strong demand for the development of absorbents with excellent hydrophobicity and absorption capacity. Herein, bagasse was carbonized to form porous char with a special structure of array-style and vertically perforated channels, and then the activation process enlarged the pore volume of the char. With the cooperation of low-surface-energy polydimethylsiloxane and diatomaceous earth particles, the modified activated carbon aerogel (MACA) was fabricated by modifying the surface coating and mastoid structure on the bagasse char. Moreover, the MACA demonstrates high porosity oil-water separation, hydrophobicity, and considerable absorption capacity (4.06–12.31g/g) for gasoline and various organic solvents. This work converts agricultural waste into an efficient porous adsorbent, offering a scalable and commercially feasible solution to solving the leakages of oil/organic solvents.Keywords:porous materials;oil absorption;hydrophobic modification;agricultural residue
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
·
2016
·Vol. 92
·期 7
·1613-1619
·
IF 2.738
Xinying Zhang,Chaoqun Wang,Wenbo Chai,Xiaoyan Liu,Yi Xu,Songwei Zhou
BACKGROUND An increasing number of oil spills has caused a rise in demand for oil sorption materials. Kapok fiber, a natural fiber, shows promising potential as an oil absorbent as it is abundantly available and exhibits high absorption capacity. Superhydrophobic kapok fiber based on graphene modified with 1H,1H,2H,2H - perfluorodecyltriclorosilane (FTS) was prepared. RESULTS FTS-modified graphene-coated kapok fibers (FGRKF) were characterized by contact angle, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. After modification, the contact angle of water on kapok fiber rose from 114.7° to 150.6°. The oil sorption capacities of kapok fiber for diesel, soybean oil and lubricating oil were 27.55, 38.28 and 43.57 g g −1 . The oil sorption capacities of FGRKF for diesel, soybean oil and lubricating oil reached 50.74, 61.08 and 68.26 g g −1 , respectively. CONCLUSION The superhydrophobic/superoleophilic FGRKF is an efficient oil sorption material, which can be used for the cleanup of oil spills. This work provides a simple method for the fabrication of superhydrophobic oil absorption material. © 2016 Society of Chemical Industry
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
Polymers
·
2022
·Vol. 14
·期 6
·1077
·
IF 4.967
Peiyuan Feng,Xiwen Wang,Jin Yang
Aerogels have great potential in oil absorption applications; however, many reported aerogels have the drawbacks of a low oil-recovery rate and poor mechanical properties, which limit their application. In this study, highly reusable graphene oxide (GO)/TEMPO-oxidized cellulose nanofiber (TOCN)/polyvinyl alcohol (PVA) aerogels with excellent mechanical properties and with an architecture similar to that ofThalia dealbatastems were fabricated through a three-step process of bidirectional-freezing, freeze-drying, and chemical vapor deposition (CVD) modification. After CVD modification, the modified GTPA (MGTPA) accorded hydrophobicity. The synergistic effects of the three components and the unique biomimetic structure conferred biomimetic-MGTPA (b-MGTPA) with excellent compressible properties. As an adsorbent, b-MGTPA showed a high adsorption capacity (75–151 g/g) for various types of organic solvents. In addition, its high compressibility enables b-MGTPA to have fast and highly efficient recovery of absorbed oil through simple mechanical squeezing and it possesses excellent reusable stability (the oil recovery rate and oil retention rate reached 80% and 91.5%, respectively, after 10 repeated absorption–compression cycles).Keywords:aerogel;bidirectional freezing;biomimetic structure;oil absorption;recyclability
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
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 16
·7930-7938
·
IF 3.3
Lingyun Wu,Liang Gao,JiaMing Li,Tianyu Wu,Dongli Chen,Zhou Manxi,Gang Sui
Adsorbent materials with high absorption capacity, stable mechanical properties, greenness and economy are highly desirable for efficient removal and recovery of oil from wastewater. Herein, an ultralight, low-cost and reusable hydrophobic aerogel of cellulose acetate/polyethylene oxide hybrid nanofibers was developed through thermal crosslinking and organosilicon modification. Through thermal crosslinking and an ice crystal template, a hierarchical pore structure was obtained which endowed the aerogel with mechanical stability and oil-absorption capacity. In addition, the structure was further strengthened after chemical vapor deposition of methyl trichlorosilane and good hydrophobicity (contact angle of 135.5°) can be realized. The surface-modified aerogel presented an ultralow density (8.74 mg cm−3), excellent resilience (completely recover to its original height after 50 compression cycles), high absorption capacity (weight gain of 63–128 g g−1) and reusability. Therefore, nanofibrous aerogels with outstanding compressive resilience and reusability make it promising to meet the increasing demand in the field of oil pollution cleaning.
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
·
2016
·
IF 2.567
Liuhua Yu,Xiang Zhou,Wei Jiang
A convenient self-assembly method was developed to prepared a highly efficient and recyclable magnetic titanium dioxide foam by using polyethylene ordinary shock absorption foam as the support. The magnetic titanium dioxide foam acquired superhydrophobicity after a facile surface chemical modification process, and it could easily float on the water surface after selective absorption, exhibiting its excellent unsinkable property. The uptake capacity of the superhydrophobic magnetic foam was about 10 times that of the original shock absorption foam, making the as-obtained foam to be a kind of promising absorption material for oil/organic solvent removal. In addition, the superhydrophobic magnetic titanium dioxide foam could be simply recycled under the magnetic field and still retained excellent absorption capacity even after 80 absorption–desorption cycles, indicating its excellent durability. Moreover, the absorbed oils and organic solvents could be reclaimed through mechanical squeezing, which could avoid wasting of resources. The results implied that the as-prepared foam had practical applications in the treatment of oil leakage and the removal of organic solvents from wastewater.
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
ChemPlusChem
·
2015
·Vol. 80
·期 9
·1435-1439
·
IF 3.026
Qin Liu,Kai Meng,Kui Ding,Yaobing Wang
Graphical Quick cleanup! When a melamine sponge was coated with polyaniline and then immersed in n -dodecylthiol, it became superhydrophobic and suitable for oil absorption (see picture). The modified sponge absorbs a broad spectrum of oil and organics efficiently with high absorption capacity, and exhibits thermal stability and excellent mechanical stability. Oil/water separation is a worldwide challenge due to frequent oil spillages, and high-performance absorbents are in high demand. In this work, a superhydrophobic sponge was fabricated by the polymerization of aniline, with subsequent simple immersion in n-dodecylthiol. The polyaniline (PANI) constructed a nanoscale rough surface on the three-dimension (3D) network of melamine sponge while n-dodecylthiol reduced surface energy, thus lead to the superhydrophobicity. This superhydrophobic sponge could absorb a broad spectrum of oil and organics efficiently, with the highest 122 times of its own weight absorption capacity. Owing to the strong mechanical elasticity inherited from the pristine melamine sponge and stable adhesion of PANI, this sponge exhibited good recyclability through squeezing. More importantly, the fabrication procedure is facile, low-cost and easily scalable. Thus, this superhydrophobic sponge is highly promising for absorption oil from water.
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
JOURNAL OF APPLIED POLYMER SCIENCE
·
2014
·Vol. 132
·期 15
·
IF 1.64
Qian Ma,Yanfei Liu,Zhe Dong,Jianglang Wang,Xin Hou
Hydrophobic and nanoporous chitosan–silica composite aerogels with low density, high porosity, and superior oil absorbency were successfully prepared by a typical sol–gel method and a two-step hydrophobic treatment. The morphologies, porosity characteristics, mechanical properties, thermal stability, hydrophobicity, and oil absorbencies of the composite aerogels were systematically investigated. The nitrogen physisorption analysis showed that composite aerogels had large specific surface areas and uniform nanoporous structures. In addition, the composite aerogels could support 7000 times its own weight; this indicated the role of the supporting skeleton played by chitosan. The hydrophobicity and lipophilicity was demonstrated with a water contact angle of 137° and an oil contact angle of 0°. Importantly, the composite aerogel with 20 wt % chitosan had a relatively high oil absorbency of 30 g/g and could be reused up to 10 times. Therefore, the chitosan–silica composite aerogels in this study had a broad prospect to be used as efficient and recyclable oil absorbents. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41770.
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
FIBERS AND POLYMERS
·
2023
·Vol. 24
·期 3
·885-892
·
IF 2.5
Du Qiuping,Yu Jiajing,Xu Xianlin,Xia Lei,Zhuang Xupin
Developing a reusable, low cost and biodegradable oil absorption material with high capacity remains a challenge. Herein, we demonstrate a facile and reliable methodology to construct a hydrophobic cellulose sponge from cellulose xanthate by regenerating cellulose and surface silanization using methyl trichlorosilane. The cellulose sponge presents high porosity of up to 87.46% which could be regulated with p-Toluenesulfonyl hydrazide. The sponge exhibits excellent structure stability, which could complete recovery from 90% compression strain and high durability (60 cycles at 90% stain). With a hydrophobic surface, it presents a high absorption capacity of over 30 times its weight for oils and organic solvents, indicating promising application in oil and 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
CARBOHYDRATE POLYMERS
·
2017
·
IF 4.811
Yeqiang Lu,Yue Wang,Lejing Liu,Weizhong Yuan
Ethyl cellulose (EC), owing to its wide availability, environmental-friendliness, and intrinsic hydrophobicity/oleophilicity, was used as an absorbent material for the first time. The superhydrophobic magnetic EC sponges with low density and high porosity were facilely prepared via freeze-drying method. The superhydrophobicity and magnetism of the sponges were achieved by silanization EC with hexadecyltrimethoxysilane and mixing with ferroferric oxide (Fe 3 O 4 ) nanoparticles. The as-prepared magnetic silanized EC (MSEC) sponges showed stable superhydrophobicity ( θ water > 150°, rolling contact angle: 7°) in several kinds of solutions. Furthermore, the sponges exhibited high separation efficiency and good mass absorption capacity for a wide variety of oils and organic solvents (37–51 times of their own weight). Benefitting from the robust superhydrophobicity and good self-cleaning property of the sponges, the absorption capacity could be well maintained upon repeated use, demonstrating the superior recyclability. These advantages made the sponges ideal absorbents for oil spillage cleanup.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2024
·
IF 5.3
Jin'e Li,Dianming Li,Yanhua Liu,Libang Feng,Xueting Shi,Wenxia Bai,Xizhong Duan,Xiaohu Qiang
Developing material that can separate oil-water mixture and absorb spilled crude oil efficiently has become a pressing challenge. To this end, we prepared a polydopamine@octamine nano-capsules based superhydrophobic fabric with photothermal effect rapidly using UV-assisted preparation. The prepared superhydrophobic fabric exhibits excellent photothermal-induced oil absorption and oil-water separation performance. Not only oils with low viscosity can be absorbed efficiently, but also oils with high viscosity can be absorbed quickly. POS fabric could absorb crude oil up to 6.5 times of its own weight. The oil-water separation efficiency and flux could reach more than 98.8 % and 16,900 L·m −2 ·h −1 , respectively. Moreover, the separation efficiency remained unchanged even after 50 separation cycles while the separation flux rose gradually with the increase of oil-water separation cycle. Meanwhile, the as-prepared superhydrophobic fabric reveals outstanding durability and stability. It maintains superhydrophobic performance even after exposed to various harsh conditions such as acids, alkalis, salts, organic solvents, UV light, and mechanical abrasion. Additionally, the fabric has outstanding self-healing ability and which can extend its service life. Therefore, this simple, fast, and environment-friendly preparation method together with the excellent performance of resultant materials is expected to have broad application prospects in the treatment of oily wastewater and offshore crude oil spills.
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）