Nano Research
·
2023
·Vol. 16
·期 7
·9625-9632
·
IF 9.9
Yang Linfeng,Feng Yaping,He Zengyi,Jiang Xinyan,Luo Xianfeng,Dai Haoyu,Jiang Lei
In recent years, numerous studies have been reported for oil/water separation, such as superoleophilic materials for oil absorption and underwater superoleophobic membranes for continuous separation. However, for the recovery of oil slick pollution on near-shore ocean surface caused by various reasons, large area and fast availability of used materials are needed to be considered. Herein, we report an efficient and environmentally friendly method to fast process nylon mesh by surface diffuse atmospheric plasma (SDAP) for large-area oil/water separation. Nylon mesh is funcionalized by atmospheric plasma to generate micro/nano composite structures on the surface, resulting in superhydrophilicity and underwater superoleophobicity within only seconds. The pre-wetted modified nylon mesh can achieve high efficiency (> 99.9%) and circulating water flux (∼ 30,000 L·m −2 ·h −1 ), with high intrusion pressure (∼ 3 kPa) and universality in oil/water separation. Regular plasma unconditionally generated in the atmosphere with the merit of efficiently functionalizing surface has the potential of large-area materials treatment. This study might take one step further for large-area industrial oily wastewater recovery and even oil slicks collection in near-shore water bodies.
研究领域:
环境科学
·
材料工程
·
化学工程
·
等离子体技术
·
溢油修复
✓ 已验证
DOI
高影响因子
JOURNAL OF SURFACTANTS AND DETERGENTS
·
2010
·Vol. 14
·期 3
·317-324
·
IF 0.795
Cui Zheng-gang,Song Hong-xing,Yu Jun-jie,Jiang Jian-zhong,Wang Feng
Alkali-surfactant-polymer (ASP) flooding has been considered to be one of the useful tertiary oil recovery techniques. However, field tests in China have revealed that serious side effects may occur due to using alkali. Thus alkali-free SP flooding is more favorable in China. Unfortunately, surfactants effective in ASP flooding are usually ineffective in the absence of alkali and new surfactants need to be designed. In this paper N -(3-Oxapropanoxyl)dodecanamide as a pure compound and a mixture of homologues with narrow EO number distribution, synthesized by the reaction of lauroyl chloride with diglycolamine and addition of one ethylene oxide to coconut monoethanolamide respectively, are examined for their adaptability in SP flooding. It is found that, when mixed with betaines, both products can reduce Daqing crude oil/connate water interfacial tension to a magnitude of 10 −3 –10 −4 mNm −1 at 45 °C in a wide surfactant concentration range, 0.01–0.5 wt%, and oil displacement tests using natural cores indicates that a tertiary oil recovery of 18.6 ± 0.4% OOIP can be achieved by SP flooding with the N -(3-Oxapropanoxyl)dodecanamide as the main surfactant without adding any alkaline agent and neutral electrolyte. N -(3-Oxapropanoxyl)dodecanamide, as a nonionic surfactant without a cloud point and producible industrially from renewable materials, is an ideal surfactant for SP flooding in the absence of an alkaline agent.
研究领域:
石油工程
·
化学工程
✓ 已验证
DOI
高影响因子
FUEL
·
2013
·
IF 3.357
Chenhua Shu,Tonghua Sun,Jinping Jia,Ziyang Lou
A novel desulfurization process of gasoline was realized via sodium metaborate (NaBO 2 ) electroreduction with pulse voltage using a boron-doped diamond (BDD) thin film electrode under mild conditions. The results of cyclic voltammetry and 11 boron (B) nuclear magnetic resonance (NMR) confirmed that NaBO 2 was converted into sodium borohydride (NaBH 4 ) by electroreduction and the electroreduction voltage ranged from −1.2 V to −1.8 V. The factors that influenced desulfurization efficiency were investigated and the desulfurization efficiency reached more than 95% for model gasoline and more than 97% for real gasoline. The components of model gasolines before and after desulfurization were analyzed by gas chromatography/mass spectrometer (GC/MS) and the elements content of electrolytes and digestion solution of precipitate were determined by inductively coupled plasma (ICP). Results indicated that reductive desulfurization process mainly involved the cleavage of C–S bond and the hydrogenation of C–C double bond and B recycle was realized at the same time as desulfurization. Consequently, possible desulfurization mechanism was proposed. Desulfurization kinetics showed a pseudo-first-order toward thiophene or benzothiophene . All these results indicated that the gasoline desulfurization process via sodium metaborate electroreduction with pulse voltage using a BDD thin film electrode was feasible.
研究领域:
化学工程
·
环境科学
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Liyuan Zhang,Yizhen Chen,Shimin Geng,Zhen Huang,Renhui Qiu,Tingting Chen,Wendi Liu
The development of eco-friendly adhesives derived from renewable sources to replace conventional petroleum-based alternatives could promote the achievement of carbon peaking and carbon neutrality goals. Herein, a series of plant oil thermosets were developed from acrylated epoxidized soybean oil (AESO) and a palm oil-based dimethacrylate (MPOEA), and then used as the adhesives for developing formaldehyde-free bamboo particleboards . Concerning the weak cohesion and adhesion forces of the adhesives, 2-isocyanethyl methacrylate (IEM) was incorporated to enhance both the crosslinking density within the thermosets and the bonding strength between bamboo particles and the thermosetting materials. The addition of IEM resulted in a notable improvement in the processability, mechanical characteristics, thermal resistance, and lap-shear strength of the thermosets. The thermosets with optimum components attained a tensile strength of 29.7 MPa, a glass transition temperature of 106.9 °C, and a shear strength of 1.7 MPa onto bamboo. The prepared bamboo particleboards exhibited superior mechanical properties, water resistance, and high-temperature resistance.
研究领域:
材料科学
·
环境科学
·
林业工程
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2015
·
IF 2.489
Ying Pan,Jing Zhan,Haifeng Pan,Bihe Yuan,Wei Wang,Lei Song,Yuan Hu
A facile and novel method to fabricate superoleophilic and hydrophobic flexible polyurethane foam (FPUF) is presented in this work. The modified FPUF was prepared by utilizing positively charged chitosan and negatively charged titanate nanotubes together with subsequent modification of dodecyl mercaptan. The roughness of the foam surface improved significantly by increasing the bilayers number of the coating. The modified FPUF could rapidly and selectively absorb various kinds of oils up to 29 times of its weight, and the absorbed oils could be collected by a simple squeezing process. Furthermore, after 50 absorption cycles, the modified FPUF could still maintain its high absorption capacity.
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
FUEL
·
2018
·
IF 4.908
Liang Shen,Fanfei Min,Lingyun Liu,Jinbo Zhu,Changguo Xue,Chuanchuan Cai,Wei Zhou,Chao Wang
Fossil fuel depletion, environmental concerns, and steep hikes in the price of fossil fuels make it imperative to develop alternative and renewable products to decrease oil products consumption in coal flotation process. Pyrolysis product of the waste cooking oil was proposed as a potential coal flotation collector in this paper. The gas chromatograph-mass spectrometer test and thermogravimetric method were used to study the properties of the waste cooking oil. The pyrolysis product of the waste cooking oil was used as coal flotation collector in two different ways. Thermogravimetric analysis showed that the pyrolysis of the waste cooking oil sample was mainly divided into three processes. The waste cooking oil pyrolysis product possessed strong collecting ability and better selectivity, and can replace diesel as a coal flotation collector. 79% combustible matter recovery was obtained in the presence of 1 kg/Mg DW-450 °C dosage compared with that of 68% in the presence of diesel. Better flotation results can be obtained in the presence of gaseous pyrolysis products of the waste cooking oil. With the increase of pyrolysis temperature of the waste cooking oil, the combustible matter recovery of the concentrate is increasing, while the ash content of the concentrate is showing a decreasing trend.
研究领域:
能源与燃料
·
环境科学
·
矿物加工工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Wenting Kong,Feiran Li,Yunlu Pan,Xuezeng Zhao
The superoleophobic/superhydrophilic material has attracted considerable interest due to the incomparable property of it for the oil–water separation. However, it is a challenge to make the prepared surface superoleophobic and superhydrophilic at the same time since the oleophobic surface tends to repel water. Herein, a hygro-responsive superoleophobic/superhydrophilic coating was fabricated by liquid-phase deposition of TiO2 with perfluorooctanoic acid. The wettability of the coating could complete the transformation from superoleophobicity/superhydrophilicity to superhydrophobicity/superoleophilicity, both of which exhibit excellent selective superwettability under the air, underwater, salt, alkali, and acid conditions. The hygro-responsive coating can separate different types of oil–water mixtures, and the separation efficiency could be over 99% using different capillary forces acting on the oil and water phases before and after wettability transformation. Last but not least, long-chain perfluoroalkyl substances on the coating could be decomposed by UV irradiation, which could reduce the harm to the environment and human beings. It is anticipated that the developed superoleophobic/superhydrophilic coating provides a feasible solution for the application of oil–water separation.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2021
·Vol. 28
·期 45
·64307-64321
·
IF 4.223
Yang Hang,Cai Jiaxi,Sun Jianfa,Zhou Zejun,Zhang Yi,Xia Shibin
In this study, demulsification separation-Fenton oxidation technology was employed as a combined technology to treat total petroleum hydrocarbons (TPH) in oil-based drill cuttings (OBDC). Batch experiments were carried out to optimize the technology parameter. Under the optimal condition, 70% and 51% TPH removal rate was obtained for demulsification technology and Fenton oxidation technology, respectively. Eighty-five percent of TPH removal rate was obtained using combination technology of demulsification separation and Fenton oxidation. Multiple characterizations were used to analyze the physical and chemical properties of treated OBDC. The result of XRD pattern indicated the combination technology had no obvious effect for structure phase of OBDC. The results of FTIR, GC-MS, TG-DTG and SEM were used to characterize the treated OBDC. This paper provides an efficient and feasible combined technology for OBDC treatment, which expands a new strategy for the removal of TPH from solid waste
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2019
·
IF 3.714
Jun Cao,Xin Jiang,Qianyuan Chen,Hao Zhang,Huihui Sun,Wei-Min Zhang,Chuan Li
Olive and camellia oils were monitored and compared during heating at 120 °C, 150 °C and 180 °C for 24 h to determine the possible thermal oxidation mechanism of oleic acid triglyceride. The results demonstrated that octanal, nonanal, decanal, 2-decenal and 2-undecenal were the characteristic carbonyls for oleic acid-rich oils. The oxidation rule of oil was easily determined at 120 °C, at which point changes in the acid value, peroxide value , anisidine value and carbonyl compounds corresponded to changes in fatty acids and tocopherols . However, the oxidation rule of oil was different at higher temperatures. According to the evolution of five characteristic aldehydes, four types of oxidation pathways of oleic acid triglyceride were obtained: Decanal and 2-undecenal came from the homolysis of 8- hydroperoxide. Nonanal was from the homolysis of 10- hydroperoxide and 9- hydroperoxide. Octanal was from the homolysis of 11- hydroperoxide. 2-Decenal was from the homolysis of 9- hydroperoxide. Homolysis B-scission of 10-hydroperoxide (nonanal), 11-hydroperoxide (octanal) and 8- hydroperoxide (decanal) was predominant at 120 °C, but was weakened as the temperature increased to 180 °C. Hence, the temperature had a significant effect on the formation and decomposition of hydroperoxide positional isomers.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2018
·
IF 3.716
Gang-Tian Zhu,Xiao-Li Hu,Sheng He,Xiao-Mei He,Shu-Kui Zhu,Yu-Qi Feng
Tailor-made chitosan fiber was prepared via hydrothermal treatment to serve as a micro-solid phase extraction (micro-SPE) sorbent for the analysis of petroleum acids (PAs) in crude oils. Chitosan fiber, which is commercial and cheap, has a diameter of about 10 μm and a length of a few centimeters. The fibrous property of the sorbent enables the micro-SPE to deal with viscous crude oil samples because of the low back-pressure during extraction, while the abundant hydroxyl groups and amino groups on the surface of chitosan fiber can provide high density of specific sites for adsorption of PAs. Moreover, it was found that hydrothermal treatment at certain conditions could tune the surface properties of chitosan fiber, leading to significant improvement of the capacity of the fiber in adsorption of PAs. Using hydrothermally treated chitosan fiber as sorbent, the micro-SPE was applied to the determination of PAs in crude oils, with the advantages of easy-operation, rapidness and high sensitivity (the limits of detection range from 0.7 ng/g to 5.4 ng/g). Furthermore, coupled with comprehensive two dimensional gas chromatography-mass spectrometry (GC × GC MS), the treated chitosan fiber packed micro-SPE method showed a great potential for comprehensive profiling of PAs in crude oils.
研究领域:
分析化学
·
材料科学
✓ 已验证
DOI
高影响因子
Food Bioscience
·
2025
·
IF 5.9
Zixi Li,Meng Dong,Libo Qi,Shan Shang,Yan Guo,Lei Qin,Baoshang Fu
Frying is the necessary step of fish soup production, which directly affects the flavor and nutritional quality of the soup. To investigate the effect of edible oil on the final quality of fish bone soup, five kinds of oil were employed in this study. The results showed that olive oil could promote the dissolution of glutamic acid and aspartic acid into the soup, the umami value elevated nearly four times. Meanwhile, olive oil and sunflower oil brought more volatile flavor substances, which contributed to the highly accepted flavor. Triglyceride O-16:0/18:1/18:2 (palmitic/oleic/linoleic triglycerides) was regarded as a potential precursor for the formation of flavor substances, such as 1-octen-3-one and 2-heptanone, which contribute to the specific flavor of fish bone soup. This study revealed that frying would improve the quality of fish bone soup by changing the color and flavor profile, guiding the selection oil for the industrial processing of fish bone soup.
研究领域:
食品科学
·
代谢组学
·
营养学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Panpan Xu,Fengdan Yan,Mengyang Liu,Yanlan Bi,Shangde Sun,Jun Li
Effects of N-methylimidazole hydrogen sulfate, 2-pyrrolidone hydrogen sulfate, N-methyl pyrrolidone hydrogen sulfate, and their -SO 3 H functionalized acidic ionic liquids were comparatively investigated on the dehydration degree of ricinoleic acid (RA) sample and conjugated linoleic acid (CLA) content in the resulting dehydrated ricinoleic acid (DRA) sample. Results showed the -SO 3 H functionalized N-methyl pyrrolidone hydrogen sulfate ([C 3 SO 3 Hnmp]HSO 4 ) had the strongest catalytic activity among the six ionic liquids. Under the optimal conditions (4 % [C 3 SO 3 Hnmp]HSO 4 , 250 °C, and 30 min), the dehydration degree of RA sample reached 98.69 % with 42.57 % of CLA in the resulting DRA sample. Results from nuclear magnetic resonance, Fourier transform infrared spectroscopy, and mass spectrometry indicated the hydroxyl group of RA underwent intramolecular dehydration to form new double bonds; RA sample was randomly dehydrated with both non-conjugated linoleic acid and CLA present in DRA sample. Rheological analysis showed that RA sample had a higher viscosity than DRA sample due to the presence of hydrogen bonds. Thermogravimetric analysis showed RA and DRA samples were thermally stable at up to 250 °C.
研究领域:
食品科学
·
化学工程
✓ 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）