CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Shichong Guo,Limei Dong,Junfeng Li,Zhenzong Lu,Yanshuo Li,Mutai Bao,Yiming Li
Crude oil spills in marine ecosystems have been a global environmental problem. Photothermal oil-adsorbing materials have shown enormous potential in cleaning up viscous crude oil spills, yet challenging to achieve efficient adsorption under insufficient light. Herein, a simple Pickering emulsion route was used to encapsulate phase change materials (PCMs) in photothermal cellulose-based aerogels (Pa@SCCA) for efficiently utilizing solar energy and remediating viscous crude oil spills. Pa@SCCA demonstrates excellent shape stability, thermal stability and importantly it shows outstanding hydrophobicity and compressibility due to methyltrimethoxysilane (MTMS) modification, thus enabling it to selectively adsorb and recover viscous crude oil. Carbon nanotubes (CNTs) was doped in the Pa@SCCA to allow the efficient conversion from solar energy to heat, and PCMs with thermal-storage ability can continuously reduce the viscosity of crude oil even under insufficient light by releasing thermal energy. Significantly, the preheated Pa@SCCA can remove viscous crude oil spills from cryogenic seawater (10 ℃) without light assistance. The introduction of PCMs improves overall solar energy utilization efficiency and the adsorption capacity for viscous crude oil under unstable light. The coupling of photothermal porous materials with PCMs offers significant advantages over conventional photothermal adsorbents.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2020
·Vol. 7
·期 4
·1901671
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IF 4.948
Miao Yu,Peng Xu,Jin Yang,Lai Ji,Changsheng Li
For dealing with crude oil spills, the high viscosity of crude oil greatly limits the absorption capacity of the absorbent materials, making crude oil a major obstacle in the cleaning process. Herein, a MoS 2 -rubber sponge (MoS 2 -RS), as a photothermal sorbent, is prepared by a one-step in situ synthesis. The sponge exhibits excellent superhydrophobicity (the water contact angle is 151°), a high absorption capacity for oils and organic liquids (15–67 g g −1 ), and an outstanding compressive elasticity of 38.6 kPa. Furthermore, MoS 2 -RS shows a good photothermal conversion capability. Under illumination, the viscosity of crude oil could be effectively reduced due to the rapid temperature rise in MoS 2 -RS. This response allows the modified sponge to quickly absorb crude oil, which significantly reduces the adsorption time of 20 µL crude oil from 16 h to 19 s when compared to that of absorbent materials without a photothermal conversion capability. Because of the excellent mechanical performance, MoS 2 -RS could be installed in a vacuum pump to continuously collect crude oil from the water surface. This setup greatly improves the crude oil collecting efficiency. The new photothermal absorbent material shows great potential for the collection of crude oil and the cleanup of spill accidents.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2018
·Vol. 11
·期 7
·1106
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IF 2.467
Jia Tan,Wei Li,Chunhui Ma,Qiong Wu,Zhou Xu,Shouxin Liu
Hydrophobic oil absorbents with interconnected porous structure have been widely used in dealing with the pervasive environmental issue of oil spills. In this work, hydrophobic foams with 3D interconnected porous honeycomb structures of liquefied-larch-based polymer foam (LLB-PF) and its carbonized product liquefied-larch-based carbon foam (LLB-CF) was prepared from larch sawdust waste and used for oil and organics separation. The results revealed that the 3D interconnected and open-cell honeycomb structure of LLB-PF was formed simultaneously during self-foaming, which remained intact even after carbonization. The two ultralight foams, especially LLB-PF, exhibited remarkable oil/water selectivity. The foams exhibited efficient and rapid absorption capacities, not only for oils but also for organic solvents. LLB-PF and LLB-CF could absorb tetrachloromethane and epoxidized soybean oil up to 88 and 153 times their own weight, respectively. The recycle tests showed that LLB-PF and LLB-CF exhibited excellent absorption capacities even after five cycles, demonstrating an excellent cyclability. The high oil and organic solvent absorption performance along with the renewable and low-cost starting materials positions LLB-PF and LLB-CF foams as promising candidates with great potential for oil and organics cleanup.Keywords:oil absorbents;carbon foams;hydrophobicity;oil cleanup;wood materials
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Zhangdi Li,Qiong Tian,Jicheng Xu,Shouzhen Sun,Ying Cheng,Fengxian Qiu,Tao Zhang
Effective cleanup of viscous crude oil spills remains a persistent and crippling challenge. Herein, this work presents a Joule-heated superhydrophobic flower-like Cu8(PO3OH)2(PO4)4·7H2O-coated copper foam (SHB-CF@CP) for rapid cleanup of viscous crude oil spills via a facile strategy. The SHB-CF@CP shows outstanding water repellency and excellent stability of hydrophobicity in harsh environments. Due to the high electrical conductivity and thermal conductivity, it requires lower power energy consumption (less than 1 V of voltage input) to raise the temperature significantly, which dramatically reduces the viscosity of crude oil (from ∼2 × 105 to ∼60 mPa s) and then increases the oil absorption rate, effectively avoiding the poor mobility and ineffective absorption of viscous crude oil. Notably, the SHB-CF@CP can achieve continuous and quick cleanup of crude oil under in situ pumping force. The high-performance Joule-heated SHB-CF@CP sorbent with a strong porous skeleton, corrosion resistance, and low predicted operational costs holds a promise of promoting its practical applications in the cleanup of intractable and large-area viscous oil spills.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Science China-Technological Sciences
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2020
·Vol. 63
·期 8
·1487-1496
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IF 2.302
Wang XinZhi,Liu Dan,Cheng Gong,Huang YuDong,He YuRong
The rapid cleanup of heavy crude oil spills is challenging due to the poor mobility of highly viscous oil. Traditional absorption strategies involve heating oils to a relatively high temperature to reduce their viscosity, but this method is expensive. Herein, a solar-heated reduced graphene oxide (rGO)-wrapped melamine sponge (MS) was proposed to rapidly absorb oil. The prepared rGO-MS exhibited good hydrophobicity and oleophilicity and could be used for the rapid cleanup of oil spills from water. In addition, the excellent photothermal conversion effect of rGO enabled the rGO-MS composite to achieve a solar energy absorption efficiency of 91%. Due to the localized solar energy collection and wetting properties of rGO-MS, viscous oil near the contact region was effectively heated, enabling rapid heavy oil recovery under solar light illumination. This proposed solar heating-assisted viscous oil sorbent has great promise for use in heavy oil spill cleanups in the future.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
高影响因子
Materials Chemistry Frontiers
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2018
·Vol. 2
·期 10
·1784-1790
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IF 0
Peng Lv,Sudong Yang,Peng-Cheng Ma
Developing novel materials for oil–water separation is highly desirable to solve the problems caused by oil spills. Herein, a wheat-bran-based hybrid material was prepared using a hydrothermal process, and the feasibility of utilizing the hybrid as an oil gelling agent (OGA) was studied. The results showed that the obtained material exhibited a mild hydrophobicity with a water contact angle above 130°, and an oleophilicity with high adsorption capacity for various oils and organic solvents. Furthermore, the material continuously adsorbed and gelled the oil floating on the water surface, forming an oil–OGA aggregate when in contact with an oil–water mixture. The aggregation-induced gelation observed in the material makes it possible to conveniently remove oil spills from the surface of water. The low cost and environmentally benign process distinguishes the developed material as a candidate that is suitable for the clean-up of oil spills.
研究领域:
材料科学
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环境科学
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生物技术
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产品关联
DOI
Journal of Bioresources and Bioproducts
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2025
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IF 13
Shuwei Tang,Lansheng Wei,Zhengguo Wu,Jiayao Weng,Jiwen Luo,Xiaoying Wang
Efficient cleanup of crude oil continues to be a global challenge owing to its inherent high viscosity, which makes it difficult to remove with conventional porous adsorbents. Here, a novel multifunctional aerogel was fabricated through directional freeze-drying, leveraging its photothermal properties and directional structure for the rapid cleanup of crude oil. The aerogel incorporates 2,2,6,6-tetramethyl-1-piperidinyloxy oxidized nanocellulose to enhance Ti 3 C 2 T x (MXene) to construct functional networks, MXene/gold nanoparticles (MX/AuNPs) as photothermal absorbers, and methyltrimethoxysilane for hydrophobic coatings. After 30 compression-release cycles at 90% strain, the strain retention of the aerogel is 85.7%, indicating its mechanical super-elasticity. The as-prepared aerogel showed durable hydrophobicity (145°), high oil/organic solvent absorption capacity (45.7–85.6 g/g), and efficient photothermal conversion, rapidly attaining and sustaining 76 °C. Interestingly, for viscous crude oil that cannot be absorbed for a long time, the aerogel completed the absorption within 10 s after illumination, demonstrating an improved absorption ability of viscous crude oil. Furthermore, the obtained aerogel successfully achieved controlled and rapid light-driven motion, as well as long-lasting photothermal sterilization performance. This work presents a feasible strategy for developing multifunctional composite aerogels, addressing the increasing demands in crude oil separation applications.
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
Journal of Materials Chemistry A
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2015
·Vol. 3
·期 16
·8772-8781
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IF 7.443
Sha Wang,Xinwen Peng,Linxin Zhong,Jiewen Tan,Shuangshuang Jing,Xuefei Cao,Wei Chen,Chuanfu Liu,Runcang Sun
The fabrication of superabsorbents for oil spillage cleanup is a hot topic today. However, the development of a low cost and highly efficient superabsorbent is still a big challenge. In this paper, we demonstrate a simple method to produce a low-cost, ultralight, elastic, and highly recyclable superabsorbent from renewable cellulose fibers via simple and environmentally friendly microfibrillation treatment and freeze-drying. Since microfibrillation of cellulose fibers resulted in hierarchical fibers that possess both fiber bulk and considerable microfibrils on the fiber surface, hierarchically porous sponges with ultralow density (0.0024 g cm−3) and high porosity (up to 99.84%) were obtained after freeze drying. The porous sponges after hydrophobic modification were elastic and exhibited rapid and outstanding absorption performances for various oils and organic solvents. The hydrophobic superabsorbent could selectively absorb oil from an oil–water mixture and showed an ultra-high absorption capacity of 88–228 g g−1, which is comparable to those of other novel carbon-based superabsorbents. More importantly, the superabsorbent showed excellent flexibility and elasticity, and could be repeatedly squeezed without structure failure (more than 30 times). The absorbed oil could be readily and rapidly recovered by means of simple mechanical squeezing, while the superabsorbent could be reused at once without any other treatment. The superabsorbent showed excellent recyclability and could be reused for at least 30 cycles while still maintaining high oil absorption capacity (137 g g−1 for pump oil). These advantages make the superabsorbent an ideal alternative for oil spillage cleaning.
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
Journal of Environmental Sciences
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2025
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IF 6.3
Wang Yu,Yuruo Wan,Wei Zhou,Jiayi An,Liting Tian,Jie Ma
Petroleum leakage is a major groundwater contamination source, with chemical composition of water soluble fractions (WSFs) from diverse oil sources significantly impacting groundwater quality and source identification. The aim of this study was to assess impact of 15 diverse oils on groundwater quality and environmental forensics based on oil-water equilibrium experiments. Our results indicate that contamination of groundwater by gasoline and naphtha is primarily attributed to volatile hydrocarbons, while pollution from diesel, kerosene, and crude oil is predominantly from non-hydrocarbons. Rapid determination of the extent of non-hydrocarbon pollution in WSFs was achieved through a new quantitative index. Gasoline and naphtha exhibited the highest groundwater contamination potential while kerosene and light crude oils were also likely to cause groundwater contamination. Although volatile hydrocarbons in the WSFs of diesel and jet fuel do not easily exceed current regulatory standards, unregulated non-hydrocarbons may pose a more severe contamination risk to groundwater. Notably, the presence of significant benzene and toluene, hydrogenation and alkylation products (e.g., C4-C5 alkylbenzenes, alkylindenes, alkyltetralins, and dihydro-indenes), cycloalkanes in WSFs can effectively be utilized for preliminary source identification of light distillates, middle distillates, and crude oils, respectively.
研究领域:
环境科学
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化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
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2025
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IF 17.1
Qianxi Zhang,Zehui Han,Jin Yan,Shishi Li,Chengpeng Li,Jianlong Wu,Denghui Li,Yaokang Zhang,Zhehan Mai,Qingqing Zhang,Peng Zhang
The oil leakage on the ocean leads to the inevitable and critical environment crisis, indicating the self-powered alerts with the high sensitivity are rather crucial for the early detection, as well as for extended periods with low consumption. Inspired by the ramie leaf, we fabricated an electrospinning fiber polytetrafluoroethylene (EF-PTFE) film, and prepared a rolling pendulum-based triboelectric nanogenerator (RP-TENG) detector with the EF-PTFE surface, whose fiber morphology can realize the distinguishable interaction between oil and water, leading to different charge transfer. Besides, the compressible structure of EF-PTFE film can enhance the effect on the induced charge, thereby improving the TENG output. The open-circuit voltage (V OC ) can increase from approximately 11 V to 15 V. Moreover, the absorption to the trace oil contributes to the high sensitivity, even the diesel concentration below 0.01 mL/m² on the water surface can be well detected. The RP-TENG can also identify petroleum and its derivatives. Furthermore, the TENG sensors with distinguishable absorption also can be extended to the detection of the trace chemicals, promoting the significant applications in multi-functional sensing.
研究领域:
材料科学
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环境科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
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2021
·
IF 9.381
Xinyu Zhao,Furui He,Gaobo Yu,Yuhong Feng,Jiacheng Li
The separation of crude oil from oily water and collection of the emulsion constituents has attracted significant attention. We demonstrate that the relationships between inherent dynamic factors and the performance of a Pickering emulsion stabilized by SiO 2 particles with adsorbed hydrophobically modified sodium alginate derivatives (HMSA), a natural pH-sensitive polysaccharide , can be clarified via a multi-scale methodology. Functionalization of the silica surface with HMSA controls particle dispersibility, as verified by turbidity and stability analyses, the zeta potential , and transmission electron microscopy measurements. The interaction mechanism between HMSA and SiO 2 nanoparticles was elucidated by both experimental adsorption measurements and computer simulations, which showed qualitative consistency. The aggregation/disaggregation of HMSA/SiO 2 particles achieved by tuning the pH of the solution facilitated reversible dispersibility/collectability behavior. Overall, a high-viscosity Pickering emulsion system based on particle-particle and droplet-droplet interactions, which can be filtered for the recovery of spilled crude oil, was demonstrated.
研究领域:
材料科学
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环境科学
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2022
·Vol. 30
·期 9
·24470-24478
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IF 5.19
Ma Ge,Xiao Han,Wei Xinming,Xiao Anshan,Sun Xiaoying,Gao Xiang
Oil leakage from water coolers in refinery circulating water occurs from time to time, which affects the long-term and stable operation of refinery units. So far, workers in the refineries still adopt manual check methods, opening water coolers one by one and checking the water’s smell and color to find out the spilled water coolers. In this study, a more rapid method of source appointment of oil spill in the circulating water by combining chemical fingerprinting with model recognition was developed. Firstly, chemical fingerprints including benzene/naphthalene series, and light hydrocarbon (C 3 -C 5 ) in oil samples from all water coolers in the refinery fluid catalytic cracking (FCC) unit were analyzed by gas chromatography-mass spectrometry (GC/MS). Gasoline, diesel, and poor oil could be distinguished in terms of benzene and naphthalene distribution. The three similar types of gasolines could be distinguished by the volatile hydrocarbons especially C 3 -C 4 . The classification model for the spill of gasoline, diesel, and poor oil in circulating water was constructed by the partial least squares discriminant analysis algorithm with a 100% correct classification rate at the concentration more than 10 ppm. The gasoline spills in the circulating backwater of the refinery were successfully recognized by the classification model. This method enables the rapid prediction of oil spill type in refinery circulating water, and a similar method by installing online instrument and software potentially can be used for monitoring the circulating water in real time.
研究领域:
环境科学
·
石油化工
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）