251
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Xu L, Qian S, Zheng W, Bai Y, Zhao Y. Formation Mechanism and Tuning for Bimodal Open-Celled Structure of Cellulose Acetate Foams Prepared by Supercritical CO2 Foaming and Poly(ethylene glycol) Leaching. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02753] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Linqiong Xu
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, People’s Republic of China
| | - Shaoping Qian
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, People’s Republic of China
| | - Wenge Zheng
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, People’s Republic of China
| | - Yongkang Bai
- School of Chemical Engineering and Technology, Xi’an Jiao Tong University, Xi’an 710049, People’s Republic of China
| | - Yongqing Zhao
- Ningbo Key Lab of Polymer Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, People’s Republic of China
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252
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Yuan D, Zhang T, Guo Q, Qiu F, Yang D, Ou Z. Superhydrophobic Hierarchical Biomass Carbon Aerogel Assembled with TiO2 Nanorods for Selective Immiscible Oil/Water Mixture and Emulsion Separation. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03661] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Dengsen Yuan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Tao Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
- Institute of Green Chemistry and Chemical Technology, Jiangsu University, Zhenjiang 212013, China
| | - Qing Guo
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Fengxian Qiu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Dongya Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhongping Ou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
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253
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Sun L, Wang J, Yu Y, Bian F, Zou M, Zhao Y. Graphene oxide hydrogel particles from microfluidics for oil decontamination. J Colloid Interface Sci 2018; 528:372-378. [DOI: 10.1016/j.jcis.2018.05.106] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/27/2018] [Accepted: 05/29/2018] [Indexed: 02/06/2023]
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254
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Wu J, Wei W, Li S, Zhong Q, Liu F, Zheng J, Wang J. The effect of membrane surface charges on demulsification and fouling resistance during emulsion separation. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.05.065] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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255
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Guo Z, Gu H, Chen Q, He Z, Xu W, Zhang J, Liu Y, Xiong L, Zheng L, Feng Y. Macroporous monoliths with pH-induced switchable wettability for recyclable oil separation and recovery. J Colloid Interface Sci 2018; 534:183-194. [PMID: 30223199 DOI: 10.1016/j.jcis.2018.09.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 12/17/2022]
Abstract
HYPOTHESIS The effective separation and recovery of oils from water is important for the protections of ecosystems and the environment. Polymeric porous monoliths have been demonstrated as attractive absorbents for oil/water separation. However, the recyclability was mainly realized by squeezing, combustion, or centrifugation, which may restrict in elastic materials, destroy the adsorbates or need special apparatus. Thus it is desirable to developing monoliths with controllable oil absorption and desorption. EXPERIMENTS A series of "smart" monoliths with pH-induced switchable wettability were fabricated by high internal phase emulsion (HIPE) polymerization and epoxide ring-opening for the incorporation of amine groups. The resultant monoliths and their wettabilities were examined using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), nitrogen adsorption/desorption and contact angle analysis, respectively. The oil separation efficiency and recyclability were evaluated. FINDINGS The monoliths with macroporous structure can undergo switchable wettability under reversible pH stimulation. As an absorbent, the monoliths not only separated and recovered organic solvents and oils (including crude oil) from aqueous mixtures through a reversible and recyclable absorption and desorption process upon alternating the pH between 7.0 and 1.0, but also continuously expulsed oils from water surfaces in a continuous manner with the aid of external driving pressures. Moreover, the monoliths also allowed the effective separation of surfactant-free and surfactant-stabilized oil-in-water emulsions with high separation efficiency.
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Affiliation(s)
- Zanru Guo
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China.
| | - Hongjian Gu
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China
| | - Qiang Chen
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China
| | - Zhanfeng He
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China.
| | - Wenyuan Xu
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China
| | - Jiali Zhang
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China
| | - Yongxin Liu
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China
| | - Leyan Xiong
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China
| | - Longzhen Zheng
- Department of Polymer Materials and Chemical Engineering, School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, PR China
| | - Yujun Feng
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China.
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256
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Abdul Fattah T, Saeed A, Albericio F. Recent advances towards sulfur (VI) fluoride exchange (SuFEx) click chemistry. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.07.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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257
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Shiu RF, Lee CL, Hsieh PY, Chen CS, Kang YY, Chin WC, Tai NH. Superhydrophobic graphene-based sponge as a novel sorbent for crude oil removal under various environmental conditions. CHEMOSPHERE 2018; 207:110-117. [PMID: 29793022 DOI: 10.1016/j.chemosphere.2018.05.071] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 05/05/2018] [Accepted: 05/13/2018] [Indexed: 06/08/2023]
Abstract
Mechanical recovery of oils using oil sorbents is one of the most important approaches to manage marine oil spills. However, the properties of the oils spilled into sea are influenced by external environmental conditions. In this study, we present a graphene-based (GB) sponge as a novel sorbent for crude oil removal and compare its performance with that of a commercial sorbent sheet under various environmental parameters. The GB sponge with excellent superhydrophobic and superoleophilic characteristics is demonstrated to be an efficient sorbent for crude oils, with high sorption capacity (up to 85-95 times its weight) and good reusability. The crude-oil-sorption capacity of our GB sponge is remarkably higher (about 4-5 times) than that of the commercial sheet and most other previously reported sponge sorbents. Moreover, several challenging environmental conditions were examined for their effects on the sorption performance, including the weathering time of oils, seawater temperature, and turbulence (wave effect). The results show that the viscosity of the oil increased with increasing weathering time or decreasing temperature; therefore, the sorption rate seemed to decrease with longer weathering times and lower temperatures. Turbulence can facilitate inner sorption and promote higher oil sorption. Our results indicate that the extent of the effects of weather and other environmental factors on crude oil should be considered in the assessment of the effective adsorption capacity and efficiency of sorbents. The present work also highlights the widespread potential applications of our GB sponge in marine spilled-oil cleanup and hydrophobic solvent removal.
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Affiliation(s)
- Ruei-Feng Shiu
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Chon-Lin Lee
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan; Department of Public Health, College of Health Science, Kaohsiung Medical University, Kaohsiung, Taiwan; Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Ping-Yen Hsieh
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan
| | - Chi-Shuo Chen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu, Taiwan
| | - Yun-Yi Kang
- Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wei-Chun Chin
- Bioengineering Program, School of Engineering, University of California, Merced, CA, USA.
| | - Nyan-Hwa Tai
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan.
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258
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Construction of hydrophobic alginate-based foams induced by zirconium ions for oil and organic solvent cleanup. J Colloid Interface Sci 2018; 533:182-189. [PMID: 30153595 DOI: 10.1016/j.jcis.2018.08.073] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/14/2018] [Accepted: 08/22/2018] [Indexed: 01/29/2023]
Abstract
Hydrophobic modification of sodium alginate (SA) foams via a simple freeze-drying and post cross-linking induced by zirconium (Zr) ions was developed. All results demonstrated that Zr ions not only constructed surface microstructure but also lowered surface energy of foams, leading to the hydrophobic character. Hydrophobic and oleophilic foams showed excellent adsorption capacities for different oils and organic solvents (11.2-25.9 g/g). Furthermore, SA solution can be also coated on porous substrates, such as melamine sponges (MS) and Nylon strainers (NS), to give hydrophobic modification by Zr ion crosslinking. These excellent performances made them a promising for oil adsorption and cleanup.
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259
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Nanospikes-mediated Anomalous Dispersities of Hydropobic Micro-objects and their Application for Oil Emulsion Cleaning. Sci Rep 2018; 8:12600. [PMID: 30135437 PMCID: PMC6105594 DOI: 10.1038/s41598-018-30339-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 07/24/2018] [Indexed: 11/08/2022] Open
Abstract
Many fields of applications require dispersion of hydrophobic particles in water, which is traditionally achieved by using surfactants or amphiphilic molecules to modify particle surfaces. However, surfactants or amphiphilic molecules may disturb the native solution or particles' surface hydrophobicity, limiting extended applications such as oil emulsion cleaning. Recently one example of 2 μm-size polystyrene microparticles covered with ZnO nanospikes has been shown to exhibit excellent dispersity in water in spite of surface hydrophobicity. Whether this anomalous dispersion phenomenon was applicable to other hydrophobic microparticle systems was still unclear and its application scope was limited. Here the anomalous dispersities of different hydrophobic spiky micro-objects were systematically explored. The results show that the anomalous dispersion phenomenon was universally observed on different hydrophobic spiky micro-objects including different hydrophobic coating, particle sizes, material compositions and core particle morphologies. In addition, the spiky micro-objects displayed anomalous dispersity in water without compromising surface hydrophobicity, and their applications for oil spills absorption and oil emulsion cleaning were demonstrated. This work offers unique insight on the nanospikes-mediated anomalous dispersion phenomenon of hydrophobic micro-object and potentially extends its applicability and application scopes.
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260
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Sui C, Preece JA, Yu SH, Zhang Z. Novel encapsulation of water soluble inorganic or organic ingredients in melamine formaldehyde microcapsules to achieve their sustained release in an aqueous environment. RSC Adv 2018; 8:29495-29498. [PMID: 35547310 PMCID: PMC9085263 DOI: 10.1039/c8ra05533e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/05/2018] [Indexed: 11/21/2022] Open
Abstract
A novel type of melamine formaldehyde microcapsule with a desirable barrier has been used to encapsulate water soluble ingredients, including potassium chloride (KCl) and allura red (dye) as models of an inorganic salt and organic molecule, respectively, via a facile method, and it has shown a sustained release of KCl and allura red for 12 h and 10 days in aqueous environment, respectively. A novel type of melamine formaldehyde microcapsule has been used to encapsulate water-soluble ingredients: potassium chloride (KCl) and allura red (dye), which achieved a sustained release for 12 h and 10 days in aqueous environment respectively.![]()
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Affiliation(s)
- Cong Sui
- School of Chemical Engineering, University of Birmingham UK .,Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation of Suzhou Nano Science and Technology, Department of Chemistry, CAS Centre for Excellence in Nanoscience, Hefei Science Centre of CAS, University of Science and Technology of China Hefei 230026 China
| | - Jon A Preece
- School of Chemistry, University of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation of Suzhou Nano Science and Technology, Department of Chemistry, CAS Centre for Excellence in Nanoscience, Hefei Science Centre of CAS, University of Science and Technology of China Hefei 230026 China
| | - Zhibing Zhang
- School of Chemical Engineering, University of Birmingham UK
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261
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Sada K. Lipophilic Polyelectrolyte Gels and Crystal Crosslinking, New Methods for Supramolecular Control of Swelling and Collapsing of Polymer Gels. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180096] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kazuki Sada
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
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262
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Lu Y, Yuan W. Superhydrophobic three-dimensional porous ethyl cellulose absorbent with micro/nano-scale hierarchical structures for highly efficient removal of oily contaminants from water. Carbohydr Polym 2018; 191:86-94. [DOI: 10.1016/j.carbpol.2018.03.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 03/08/2018] [Accepted: 03/10/2018] [Indexed: 12/13/2022]
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263
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Narayanan P, Ravirajan A, Umasankaran A, Prakash DG, Kumar PS. Theoretical and experimental investigation on the removal of oil spill by selective sorbents. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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264
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Wei Q, Oribayo O, Feng X, Rempel GL, Pan Q. Synthesis of Polyurethane Foams Loaded with TiO2 Nanoparticles and Their Modification for Enhanced Performance in Oil Spill Cleanup. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01037] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qian Wei
- Green Polymer and Catalysis Technology Laboratory, College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215123, Jiangsu Province People’s Republic of China
| | - Oluwasola Oribayo
- Green Polymer and Catalysis Technology Laboratory, College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215123, Jiangsu Province People’s Republic of China
| | - Xianshe Feng
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Garry L. Rempel
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Qinmin Pan
- Green Polymer and Catalysis Technology Laboratory, College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215123, Jiangsu Province People’s Republic of China
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265
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Long LY, Weng YX, Wang YZ. Cellulose Aerogels: Synthesis, Applications, and Prospects. Polymers (Basel) 2018; 10:E623. [PMID: 30966656 PMCID: PMC6403747 DOI: 10.3390/polym10060623] [Citation(s) in RCA: 164] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 05/29/2018] [Accepted: 06/02/2018] [Indexed: 01/19/2023] Open
Abstract
Due to its excellent performance, aerogel is considered to be an especially promising new material. Cellulose is a renewable and biodegradable natural polymer. Aerogel prepared using cellulose has the renewability, biocompatibility, and biodegradability of cellulose, while also having other advantages, such as low density, high porosity, and a large specific surface area. Thus, it can be applied for many purposes in the areas of adsorption and oil/water separation, thermal insulation, and biomedical applications, as well as many other fields. There are three types of cellulose aerogels: natural cellulose aerogels (nanocellulose aerogels and bacterial cellulose aerogels), regenerated cellulose aerogels, and aerogels made from cellulose derivatives. In this paper, more than 200 articles were reviewed to summarize the properties of these three types of cellulose aerogels, as well as the technologies used in their preparation, such as the sol⁻gel process and gel drying. In addition, the applications of different types of cellulose aerogels were also introduced.
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Affiliation(s)
- Lin-Yu Long
- School of Materials and Mechanical Engineering, Beijing Technology& Business University, Beijing 100048, China.
| | - Yun-Xuan Weng
- School of Materials and Mechanical Engineering, Beijing Technology& Business University, Beijing 100048, China.
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China.
| | - Yu-Zhong Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, Sichuan University, Chengdu 610064, China.
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266
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Nam C, Zhang G, Chung TCM. Polyolefin-based interpenetrating polymer network absorbent for crude oil entrapment and recovery in aqueous system. JOURNAL OF HAZARDOUS MATERIALS 2018; 351:285-292. [PMID: 29554525 DOI: 10.1016/j.jhazmat.2018.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 03/01/2018] [Accepted: 03/03/2018] [Indexed: 06/08/2023]
Abstract
In this research, a series of different two polyolefin-based interlaced polymer network material was prepared with a semi-crystalline linear low density polyethylene (LLDPE, thermoplastic) and a crosslinked 1-decene/divinylbenzene (1-D/DVB, elastomer) having high crude oil absorption capacity. The prepared absorbents, LLDPE/D/DVB, were characterized by NMR, TEM, contact angle measurement and TGA analysis. It was observed that the mixing ratio of two interlaced polymer network played a crucial role in determining its crude oil absorption capacity. The swelling capacity of absorbent prepared from a 1:1 mixing of LLDPE and D/DVB (0.2 ml) exhibit high removal efficiency in crude oil absorption over 40 g/g at both 25 °C and 0 °C. The removal of the absorbed crude oil from the water surface is effective. As the absorbent made of polyolefin materials have pure hydrocarbon content, offer significant advantages such as high absorption capacity, simple recovery, and recyclability.
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Affiliation(s)
- Changwoo Nam
- Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - Gang Zhang
- Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - T C Mike Chung
- Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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267
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Peng J, Deng J, Quan Y, Yu C, Wang H, Gong Y, Liu Y, Deng W. Superhydrophobic Melamine Sponge Coated with Striped Polydimethylsiloxane by Thiol-Ene Click Reaction for Efficient Oil/Water Separation. ACS OMEGA 2018; 3:5222-5228. [PMID: 31458735 PMCID: PMC6641746 DOI: 10.1021/acsomega.8b00373] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/25/2018] [Indexed: 05/30/2023]
Abstract
Superhydrophobic and oleophilic sponges have been demonstrated as promising candidates for oil/water separation. However, there are still challenges in large-scale fabrication of superhydrophobic sponges with low cost and feasible method for industrial applications. Herein, we report a superhydrophobic and oleophilic melamine sponge functionalized by a uniform polydimethylsiloxane (PDMS) film that can be easily coated onto the sponge skeleton through UV-assisted thiol-ene click reactions. The PDMS films are characterized by a hierarchically striped microstructure with an average distance less than 2 μm. Because of the striped microstructure and the hydrophobic property of silicone, a high contact angle of 156.2° was achieved. Importantly, the interconnected open-cell structure of the melamine sponge was preserved by adapting the thickness of the PDMS film. The PDMS-coated melamine sponge exhibited a desirable absorption capacity of 103-179 times its own weight with oils and organic solvents. The excellent mechanical properties of melamine and the flexibility of PDMS enable the PDMS-coated melamine sponges to be squeezed repeatedly without collapsing. This study offers a robust and effective approach in large-scale preparation of a superhydrophobic sponge for large-scale oil spill containment and environmental remediation by the inexpensive commercial polymethylvinylsilicone and facile dip-coating/UV-curing method.
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268
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Zhang X, Zhao Y, Mu S, Jiang C, Song M, Fang Q, Xue M, Qiu S, Chen B. UiO-66-Coated Mesh Membrane with Underwater Superoleophobicity for High-Efficiency Oil-Water Separation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17301-17308. [PMID: 29733568 DOI: 10.1021/acsami.8b05137] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A UiO-66-coated mesh membrane with micro- and nanostructures was designed and successfully fabricated on steel mesh through a simple solution immersion process, exhibiting hydrophilic and underwater superoleophobic properties. It displays an outstanding oil-water separation efficiency over 99.99% with a high water permeation flux of 12.7 × 104 L m-2 h-1, so high purity water (with the residual oil content less than 4 ppm) can be readily obtained from such a simple mesh membrane from various oil-water mixtures. Its large-scale membrane production will facilitate its practical usage for the industrial and environmental water purification.
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Affiliation(s)
- Xiaojing Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Yuxin Zhao
- State Key Laboratory of Safety and Control for Chemicals , SINOPEC Research Institute of Safety Engineering , Qingdao 266101 , Shandong , P. R. China
| | - Shanjun Mu
- State Key Laboratory of Safety and Control for Chemicals , SINOPEC Research Institute of Safety Engineering , Qingdao 266101 , Shandong , P. R. China
| | - Chunming Jiang
- State Key Laboratory of Safety and Control for Chemicals , SINOPEC Research Institute of Safety Engineering , Qingdao 266101 , Shandong , P. R. China
| | - Mingqiu Song
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Qianrong Fang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Ming Xue
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Shilun Qiu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Banglin Chen
- Department of Chemistry , University of Texas at San Antonio, One UTSA Circle , San Antonio , Texas 78249-0698 , United States
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269
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Li J, Song Y, Ma Z, Li N, Niu S, Li Y. Preparation of polyvinyl alcohol graphene oxide phosphonate film and research of thermal stability and mechanical properties. ULTRASONICS SONOCHEMISTRY 2018; 43:1-8. [PMID: 29555263 DOI: 10.1016/j.ultsonch.2018.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/01/2018] [Accepted: 01/01/2018] [Indexed: 06/08/2023]
Abstract
In this article, flake graphite, nitric acid, peroxyacetic acid and phosphoric acid are used to prepare graphene oxide phosphonic and phosphinic acids (GOPAs), and GOPAs and polyvinyl alcohol (PVA) are used to synthesize polyvinyl alcohol graphene oxide phosphonate and phosphinate (PVAGOPs) in the case of faint acidity and ultrasound irradiation, and PVAGOPs are used to fabricate PVAGOPs film, and the structure and morphology of GOPAs, PVAGOPs and PVAGOPs film are characterized, and the thermal stability and mechanical properties of PVAGOPs film are investigated. Based on these, it has been proved that GOPAs consist of graphene oxide phosphonic acid and graphene oxide phosphinic acid, and there are CP covalent bonds between them, and PVAGOPs are composed of GOPAs and PVA, and there are six-member lactone rings between GOPAs and PVA, and the thermal stability and mechanical properties of PVAGOPs film are improved effectively.
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Affiliation(s)
- Jihui Li
- National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Hebei, Shijiazhuang 050024, China
| | - Yunna Song
- National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Hebei, Shijiazhuang 050024, China
| | - Zheng Ma
- College of Huihua, Hebei Normal University, Hebei, Shijiazhuang 050024, China
| | - Ning Li
- The Real Estate CO., LTD. of CSCEC, Beijing 100070, China
| | - Shuai Niu
- National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Hebei, Shijiazhuang 050024, China.
| | - Yongshen Li
- National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Material Science, Hebei Normal University, Hebei, Shijiazhuang 050024, China.
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270
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Ge M, Cao C, Huang J, Zhang X, Tang Y, Zhou X, Zhang K, Chen Z, Lai Y. Rational design of materials interface at nanoscale towards intelligent oil-water separation. NANOSCALE HORIZONS 2018; 3:235-260. [PMID: 32254075 DOI: 10.1039/c7nh00185a] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Oil-water separation is critical for the water treatment of oily wastewater or oil-spill accidents. The oil contamination in water not only induces severe water pollution but also threatens human beings' health and all living species in the ecological system. To address this challenge, different nanoscale fabrication methods have been applied for endowing biomimetic porous materials, which provide a promising solution for oily-water remediation. In this review, we present the state-of-the-art developments in the rational design of materials interface with special wettability for the intelligent separation of immiscible/emulsified oil-water mixtures. A mechanistic understanding of oil-water separation is firstly described, followed by a summary of separation solutions for traditional oil-water mixtures and special oil-water emulsions enabled by self-amplified wettability due to nanostructures. Guided by the basic theory, the rational design of interfaces of various porous materials at nanoscale with special wettability towards superhydrophobicity-superoleophilicity, superhydrophilicity-superoleophobicity, and superhydrophilicity-underwater superoleophobicity is discussed in detail. Although the above nanoscale fabrication strategies are able to address most of the current challenges, intelligent superwetting materials developed to meet special oil-water separation demands and to further promote the separation efficiency are also reviewed for various special application demands. Finally, challenges and future perspectives in the development of more efficient oil-water separation materials and devices by nanoscale control are provided. It is expected that the biomimetic porous materials with nanoscale interface engineering will overcome the current challenges of oil-water emulsion separation, realizing their practical applications in the near future with continuous efforts in this field.
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Affiliation(s)
- Mingzheng Ge
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
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271
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Underwater superoleophobic/underoil superhydrophobic corn cob coated meshes for on-demand oil/water separation. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.12.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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272
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Xu R, Zhang K, Xu X, He M, Lu F, Su B. Superhydrophobic WS 2-Nanosheet-Wrapped Sponges for Underwater Detection of Tiny Vibration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700655. [PMID: 29721413 PMCID: PMC5908356 DOI: 10.1002/advs.201700655] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/17/2017] [Indexed: 05/22/2023]
Abstract
Underwater vibration detection is of great importance in personal safety, environmental protection, and military defense. Sealing layers are required in many underwater sensor architectures, leading to limited working-life and reduced sensitivity. Here, a flexible, superhydrophobic, and conductive tungsten disulfide (WS2) nanosheets-wrapped sponge (SCWS) is reported for the high-sensitivity detection of tiny vibration from the water surfaces and from the grounds. When the SCWS is immersed in water, a continuous layer of bubbles forms on its surfaces, providing the sensor with two special abilities. One is sealing-free feature due to the intrinsic water-repellent property of SCWS. The other is functioning as a vibration-sensitive medium to convert mechanical energy into electric signals through susceptible physical deformation of bubbles. Therefore, the SCWS can be used to precisely detect tiny vibration of water waves, and even sense those caused by human footsteps, demonstrating wide applications of this amphibious (water/ground) vibration sensor. Results of this study can initiate the exploration of superhydrophobic materials with elastic and conductive properties for underwater flexible electronic applications.
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Affiliation(s)
- Ruixin Xu
- School of Media and CommunicationShenzhen PolytechnicShenzhen518055China
- State Key Laboratory of Pulp & Paper EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Kaili Zhang
- State Key Laboratory of Pulp & Paper EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Xiangyang Xu
- School of Media and CommunicationShenzhen PolytechnicShenzhen518055China
| | - Minghui He
- State Key Laboratory of Pulp & Paper EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Fachuang Lu
- State Key Laboratory of Pulp & Paper EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Bin Su
- Department of Chemical EngineeringMonash UniversityClaytonVic3800Australia
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273
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Yang C, Bai B, He Y, Hu N, Wang H, Suo Y. Novel Fabrication of Solar Light-Heated Sponge through Polypyrrole Modification Method and Their Applications for Fast Cleanup of Viscous Oil Spills. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00166] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chenxi Yang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, Shaanxi, China
- College of Environmental Science and Engineering, Chang’an University, Xi’an 710054, P. R. China
| | - Bo Bai
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining 810001, P. R. China
| | - Yunhua He
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, Shaanxi, China
- College of Environmental Science and Engineering, Chang’an University, Xi’an 710054, P. R. China
| | - Na Hu
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining 810001, P. R. China
| | - Honglun Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining 810001, P. R. China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Xining 810001, P. R. China
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274
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275
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Huang J, Yan Z. Adsorption Mechanism of Oil by Resilient Graphene Aerogels from Oil-Water Emulsion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1890-1898. [PMID: 29307185 DOI: 10.1021/acs.langmuir.7b03866] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A facile synthesis strategy was adopted to prepare resilient graphene aerogel (GA) with properties of high emulsified oil adsorption capacities, excellent rebounding performance, oil-water selectivity, and recycling abilities. The maximum adsorption capacity of GA for emulsified diesel oil was 2.5 × 104 mg g-1. The microscopic kinetic and thermodynamic mutual reaction models of diesel oil emulsion adsorption onto GA were investigated to describe the adsorption mechanism. The emulsified diesel oil was able to be separated efficiently from the oil-water emulsion by GA because of their high oil selectivity. Interestingly, both kinetics and thermodynamic experiments show that emulsified oil adsorption on GA is a physical adsorption and spontaneous process. Besides, GA can be reused with prominent repeatability for at least 10 cycles, demonstrating feasibility in practical applications of GA-based oily water treatment.
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Affiliation(s)
- Jiankun Huang
- State Key Laboratory for Heavy Oil Processing, PetroChina Key Laboratory of Catalysis, China University of Petroleum (East) , Qingdao, Shandong 266580, People's Republic of China
| | - Zifeng Yan
- State Key Laboratory for Heavy Oil Processing, PetroChina Key Laboratory of Catalysis, China University of Petroleum (East) , Qingdao, Shandong 266580, People's Republic of China
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276
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Calotropis gigantea fiber derived carbon fiber enables fast and efficient absorption of oils and organic solvents. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.10.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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277
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Chen HJ, Hang T, Yang C, Liu G, Lin DA, Wu J, Pan S, Yang BR, Tao J, Xie X. Anomalous dispersion of magnetic spiky particles for enhanced oil emulsions/water separation. NANOSCALE 2018; 10:1978-1986. [PMID: 29319088 DOI: 10.1039/c7nr07995h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In situ effective separation of oil pollutants including oil spills and oil emulsions from water is an emerging technology yet remains challenging. Hydrophobic micro- or nano-materials with ferromagnetism have been explored for oil removal, yet the separation efficiency of an oil emulsion was compromised due to the limited dispersion of hydrophobic materials in water. A surfactant coating on microparticles prevented particle aggregation, but reduced oil absorption and emulsion cleaning ability. Recently, polystyrene microbeads covered with nanospikes have been reported to display anomalous dispersion in phobic media without surfactants. Inspired by this phenomenon, here magnetic microparticles attached with nanospikes were fabricated for enhanced separation of oil emulsions from water. In this design, the particle surfaces were functionalized to be superhydrophobic/superoleophilic for oil absorption, while the surface of the nanospikes prevented particle aggregation in water without compromising surface hydrophobicity. The magnetic spiky particles effectively absorbed oil spills on the water surface, and readily dispersed in water and offered facile cleaning of the oil emulsion. In contrast, hydrophobic microparticles without nanospikes aggregated in water limiting the particle-oil contact, while surfactant coating severely reduced particle hydrophobicity and oil absorption ability. Our work provides a unique application scope for the anomalous dispersity of microparticles and their potential opportunities in effective oil-water separation.
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Affiliation(s)
- Hui-Jiuan Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, The First Affiliated Hospital of Sun Yat-Sen University, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou, China.
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278
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Chen Q, Pei Z, Xu Y, Li Z, Yang Y, Wei Y, Ji Y. A durable monolithic polymer foam for efficient solar steam generation. Chem Sci 2018; 9:623-628. [PMID: 29629127 PMCID: PMC5868306 DOI: 10.1039/c7sc02967e] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/01/2017] [Indexed: 12/24/2022] Open
Abstract
Efficient and cost-effective solar steam generation requires self-floating evaporators which can convert light into heat, prevent unnecessary heat loss and greatly accelerate evaporation without solar concentrators. Currently, the most efficient evaporators (efficiency of ∼80% under 1 sun) are invariably built from inorganic materials, which are difficult to mold into monolithic sheets. Here, we present a new polymer which can be easily solution processed into a self-floating monolithic foam. The single-component foam can be used as an evaporator with an efficiency at 1 sun comparable to that of the best graphene-based evaporators. Even at 0.5 sun, the efficiency can reach 80%. Moreover, the foam is mechanically strong, thermally stable to 300 °C and chemically resistant to organic solvents.
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Affiliation(s)
- Qiaomei Chen
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Department of Chemistry , Tsinghua University , Beijing 100084 , China . ;
| | - Zhiqiang Pei
- Simpson Querrey Institute for BioNanotechnology , Northwestern University , Chicago , Illinois 60611 , USA
| | - Yanshuang Xu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Department of Chemistry , Tsinghua University , Beijing 100084 , China . ;
| | - Zhen Li
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Department of Chemistry , Tsinghua University , Beijing 100084 , China . ;
| | - Yang Yang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Department of Chemistry , Tsinghua University , Beijing 100084 , China . ;
| | - Yen Wei
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Department of Chemistry , Tsinghua University , Beijing 100084 , China . ;
| | - Yan Ji
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology , Department of Chemistry , Tsinghua University , Beijing 100084 , China . ;
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279
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Xiong S, Yang Y, Zhong Z, Wang Y. One-Step Synthesis of Carbon-Hybridized ZnO on Polymeric Foams by Atomic Layer Deposition for Efficient Absorption of Oils from Water. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b03939] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sen Xiong
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Yang Yang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, People’s Republic of China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, People’s Republic of China
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280
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Sarkar B, Mandal S, Tsang YF, Kumar P, Kim KH, Ok YS. Designer carbon nanotubes for contaminant removal in water and wastewater: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 612:561-581. [PMID: 28865273 DOI: 10.1016/j.scitotenv.2017.08.132] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/31/2017] [Accepted: 08/13/2017] [Indexed: 05/21/2023]
Abstract
The search for effective materials for environmental cleanup is a scientific and technological issue of paramount importance. Among various materials, carbon nanotubes (CNTs) possess unique physicochemical, electrical, and mechanical properties that make them suitable for potential applications as environmental adsorbents, sensors, membranes, and catalysts. Depending on the intended application and the chemical nature of the target contaminants, CNTs can be designed through specific functionalization or modification processes. Designer CNTs can remarkably enhance contaminant removal efficiency and facilitate nanomaterial recovery and regeneration. An increasing number of CNT-based materials have been used to treat diverse organic, inorganic, and biological contaminants. These success stories demonstrate their strong potential in practical applications, including wastewater purification and desalination. However, CNT-based technologies have not been broadly accepted for commercial use due to their prohibitive cost and the complex interactions of CNTs with other abiotic and biotic environmental components. This paper presents a critical review of the existing literature on the interaction of various contaminants with CNTs in water and soil environments. The preparation methods of various designer CNTs (surface functionalized and/or modified) and the functional relationships between their physicochemical characteristics and environmental uses are discussed. This review will also help to identify the research gaps that must be addressed for enhancing the commercial acceptance of CNTs in the environmental remediation industry.
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Affiliation(s)
- Binoy Sarkar
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; Department of Geological Sciences, Indiana University, Bloomington, IN 47405, USA
| | - Sanchita Mandal
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong
| | - Pawan Kumar
- Department of Nano Science and Materials, Central University of Jammu, Jammu 181143, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
| | - Yong Sik Ok
- Korea Biochar Research Center, Kangwon National University, Chuncheon 24341, Republic of Korea; O-Jeong Eco-Resilience Institute (OJERI), Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Republic of Korea.
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281
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Li X, Mou F, Guo J, Deng Z, Chen C, Xu L, Luo M, Guan J. Hydrophobic Janus Foam Motors: Self-Propulsion and On-The-Fly Oil Absorption. MICROMACHINES 2018; 9:mi9010023. [PMID: 30393299 PMCID: PMC6187715 DOI: 10.3390/mi9010023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/07/2018] [Accepted: 01/09/2018] [Indexed: 12/02/2022]
Abstract
In this work, we for the first time have proposed and fabricated a self-propelled Janus foam motor for on-the-fly oil absorption on water by simply loading camphor/stearic acid (SA) mixture as fuels into one end of the SA-modified polyvinyl alcohol (PVA) foam. The as-fabricated Janus foam motors show an efficient Marangoni effect-based self-propulsion on water for a long lifetime due to the effective inhibition of the rapid release of camphor by the hydrophobic SA in the fuel mixture. Furthermore, they can automatically search, capture, and absorb oil droplets on the fly, and then be spontaneously self-assembled after oil absorption due to the self-propulsion of the motors as well as the attractive capillary interactions between the motors and oil droplets. This facilitates the subsequent collection of the motors from water after the treatment. Since the as-developed Janus foam motors can effectively integrate intriguing behaviors of the self-propulsion, efficient oil capture, and spontaneous self-assembly, they hold great promise for practical applications in water treatment.
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Affiliation(s)
- Xiaofeng Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Fangzhi Mou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Jingjing Guo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Zhuoyi Deng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Chuanrui Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Leilei Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Ming Luo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Jianguo Guan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
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282
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Zhan W, Yu S, Gao L, Wang F, Fu X, Sui G, Yang X. Bioinspired Assembly of Carbon Nanotube into Graphene Aerogel with "Cabbagelike" Hierarchical Porous Structure for Highly Efficient Organic Pollutants Cleanup. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1093-1103. [PMID: 29244950 DOI: 10.1021/acsami.7b15322] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nowadays, physical absorption has become a feasible method offering an efficient and green route to remove organic pollutants from the industrial wastewater. Inspired by polydopamine (PDA) chemistry, one-dimensional PDA-functionalized multiwalled carbon nanotubes (MWCNT-PDA) were creatively introduced into graphene aerogel framework to synthesize a robust graphene/MWCNT-PDA composite aerogel (GCPCA). The whole forming process needed no additional reducing agents, significantly reducing the contamination emissions to the environment. The GCPCA exhibited outstanding repeatable compressibility, ultralight weight, as well as hydrophobic nature, which were crucial for highly efficient organic pollution absorption. The MWCNTs in moderate amounts can provide the composite aerogels with desirable structure stability and extra specific surface area. Meanwhile, the eventual absorption performance of GCPCAs can be improved by optimizing the microporous structure. In particular, a novel "cabbagelike" hierarchical porous structure was obtained as the prefreezing temperature was decreased to -80 °C. The miniaturization of pore size around the periphery of GCPCA enhanced the capillary flow in aerogel channels, and the super-absorption capacity for organic solvents was up to 501 times (chloroform) its own mass. Besides, the GCPCAs exhibited excellent reusable performance in absorption-squeezing, absorption-combustion, and absorption-distillation cycles according to the characteristic of different organic solvents. Because of the viable synthesis method, the resulting GCPCAs with unique performance possess broad and important application prospects, such as oil pollution cleanup and treatment of chemical industrial wastewater.
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Affiliation(s)
- Wenwei Zhan
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Siruo Yu
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Liang Gao
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
- AVIC Composite Corporation LTD , Beijing 101300, China
| | - Feng Wang
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Xue Fu
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Gang Sui
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
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283
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Zhou C, Feng J, Cheng J, Zhang H, Lin J, Zeng X, Pi P. Opposite Superwetting Nickel Meshes for On-Demand and Continuous Oil/Water Separation. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04517] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cailong Zhou
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jinxin Feng
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jiang Cheng
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hui Zhang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jing Lin
- School
of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xinjuan Zeng
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Pihui Pi
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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284
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Saleem J, Adil Riaz M, Gordon M. Oil sorbents from plastic wastes and polymers: A review. JOURNAL OF HAZARDOUS MATERIALS 2018; 341:424-437. [PMID: 28818816 DOI: 10.1016/j.jhazmat.2017.07.072] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/05/2017] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
A large volume of the waste produced across the world is composed of polymers from plastic wastes such as polyethylene (HDPE or LDPE), polypropylene (PP), and polyethylene terephthalate (PET) amongst others. For years, environmentalists have been looking for various ways to overcome the problems of such large quantities of plastic wastes being disposed of into landfill sites. On the other hand, the usage of synthetic polymers as oil sorbents in particular, polyolefins, including polypropylene (PP) and polyethylene (PE) have been reported. In recent years, the idea of using plastic wastes as the feed for the production of oil sorbents has gained momentum. However, the studies undertaking such feasibility are rather scattered. This review paper is the first of its kind reporting, compiling and reviewing these various processes. The production of an oil sorbent from plastic wastes is being seen to be satisfactorily achievable through a variety of methods Nevertheless, much work needs to be done regarding further investigation of the numerous parameters influencing production yields and sorbent qualities. For example, differences in results are seen due to varying operating conditions, experimental setups, and virgin or waste plastics being used as feeds. The field of producing oil sorbents from plastic wastes is still very open for further research, and seems to be a promising route for both waste reduction, and the synthesis of value-added products such as oil sorbents. In this review, the research related to the production of various oil sorbents based on plastics (plastic waste and virgin polymer) has been discussed. Further oil sorbent efficiency in terms of oil sorption capacity has been described.
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Affiliation(s)
- Junaid Saleem
- Division of Sustainability, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar; HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan.
| | - Muhammad Adil Riaz
- School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
| | - McKay Gordon
- Division of Sustainability, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
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285
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Wan X, Azhar U, Wang Y, Chen J, Xu A, Zhang S, Geng B. Highly porous and chemical resistive P(TFEMA–DVB) monolith with tunable morphology for rapid oil/water separation. RSC Adv 2018; 8:8355-8364. [PMID: 35542035 PMCID: PMC9078523 DOI: 10.1039/c8ra00501j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 02/12/2018] [Indexed: 11/27/2022] Open
Abstract
A facile preparation for a series of porous poly(2,2,2-trifluoroethylmethacrylate–divinylbenzene) P(TFEMA–DVB) foams is discussed in this paper. The foams have adjustable morphology utilizing a suitable commercial surfactant, Hypermer B246, as stabilizer, and were compared with traditional organic surfactants or macromolecular block-polymers. Combining the porous properties and advantages of fluorine atoms, this type of fluoropolymer exhibited superb chemical stability and hydrophobicity performances with high porosity. These porous fluoro-monoliths preserved their regular porous structure without any degradation after immersion into strong acidic or basic solution for three days, hence demonstrating an excellent potential to deal with environmental pollution caused by oil spillages in severe environments. The tunable morphology (open and closed pores) and pore sizes were achieved by investigating various parameters like surfactant concentration, amount of external crosslinker, and aqueous phase volume. Droplet sizes of HIPEs were characterized using an optical microscope under different experimental conditions. The influence of pore structure and surface properties of polyHIPE on water contact angle and oil adsorption capacity was also explored. The results indicated that the porous material has an excellent oleophilicity and hydrophobicity, with water contact angles (WCA) up to 146.4°. Additionally, the results presented a noticeable adsorption with a very fast rate towards organic oils from either a water surface or bottom with adsorption saturation achieved in about 120 s. The prepared polyHIPEs showed a good recycling ability; even after 10 adsorption–centrifugation experiments, the adsorption capacity was still more than 85%. A facile preparation for a series of porous poly(2,2,2-trifluoroethylmethacrylate–divinylbenzene) P(TFEMA–DVB) foams is discussed in this paper.![]()
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Affiliation(s)
- Xiaozheng Wan
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Umair Azhar
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Yongkang Wang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Jian Chen
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Anhou Xu
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Shuxiang Zhang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Bing Geng
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
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286
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Hao L, Chen IC, Oh JK, Nagabandi N, Bassan F, Liu S, Scholar E, Zhang L, Akbulut M, Jiang B. Nanocomposite Foam Involving Boron Nitride Nanoplatelets and Polycaprolactone: Porous Structures with Multiple Length Scales for Oil Spill Cleanup. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Li Hao
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - I-Cheng Chen
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Jun Kyun Oh
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Nirup Nagabandi
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Felipe Bassan
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Shuhao Liu
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
| | - Ethan Scholar
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Luhong Zhang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Mustafa Akbulut
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
- Texas A&M Energy Institute, Texas A&M University, College Station, Texas 77843-3372, United States
| | - Bin Jiang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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287
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288
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Zhang Z, Zhang Y, Fan H, Wang Y, Zhou C, Ren F, Wu S, Li G, Hu Y, Li J, Wu D, Chu J. A Janus oil barrel with tapered microhole arrays for spontaneous high-flux spilled oil absorption and storage. NANOSCALE 2017; 9:15796-15803. [PMID: 28792053 DOI: 10.1039/c7nr03829a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Porous oil/water separation materials show excellent prospects in the remediation of oil spill accidents. However, several drawbacks such as low flux, limited absorption and storage capacity restrict their practical applications. Hence, a novel Janus oil barrel (superhydrophobic outside wall and superhydrophilic inside wall) constituted by tapered microhole arrayed aluminium foil is designed, which is demonstrated to be a promising device for the remediation of oil spill accidents. Furthermore, the investigation shows that the tapered microholes (taper angle 25-30°) can significantly enhance oil/water intrusion pressures (1-3 times higher than cylindrical holes) and unidirectional transferability which can eliminate the secondary leakage when salvaging full oil barrels without an additional procedure. It is indicated that the Janus oil barrel can spontaneously absorb spilled oil with a high flux (45 000 Lm-2 h-1), and synchronously store the absorbed oil. In addition, the barrel can absorb oil from surfactant-free oil-in-water emulsions appearing in oil spills and industrial processes. The distinct design combining excellent controllability, high precision and flexibility of the femtosecond laser micro/nanofabrication technology provides a general strategy in oil spill remediation.
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Affiliation(s)
- Zhen Zhang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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289
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Zhu H, Chen D, Li N, Xu Q, Li H, He J, Wang H, Wu P, Lu J. Fabrication of Photocontrolled Surfaces for Oil/Water Separation through Sulfur(VI) Fluoride Exchange. Chemistry 2017; 23:14712-14717. [DOI: 10.1002/chem.201703309] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Haiguang Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Dongyun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Najun Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Jinghui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Hua Wang
- Department of Molecular Medicine; The Scripps Research Institute; La Jolla, CA 92037 USA
| | - Peng Wu
- Department of Molecular Medicine; The Scripps Research Institute; La Jolla, CA 92037 USA
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
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290
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Lu Y, Yuan W. Superhydrophobic/Superoleophilic and Reinforced Ethyl Cellulose Sponges for Oil/Water Separation: Synergistic Strategies of Cross-linking, Carbon Nanotube Composite, and Nanosilica Modification. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29167-29176. [PMID: 28796484 DOI: 10.1021/acsami.7b09160] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Superhydrophobic/superoleophilic and reinforced ethyl cellulose (SEC) sponges were prepared by cross-linking EC with epichlorohydrin (ECH) and complexing with silanized carbon nanotubes (Si-CNTs) followed by coating nanosilica on the surface of porous sponges and subsequent modification with hexadecyltrimethoxysilane (HDTMS). These synergistic strategies endowed the SEC sponges with the superhydrophobic/superoleophilic properties (θwater = 158.2°, θoil = 0°, sliding angle = 3°) and outstanding mechanical properties (could bear the pressure of 28.6 kPa without damage). The unique micronanostructures and properties of the porous sponges were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and water contact angle measurements. The as prepared SEC sponges with high mechanical strength were able to collect a wide range of oils and organic solvents with absorption capacity up to 64 times of their own weight. Furthermore, the absorption capacity of the sponges decreased slightly to 86.4% of its initial value after 50 separation cycles, suggesting their excellent recyclable performance. The high efficiency and endurability of the sponges during oil/water separation made them ideal absorbent in oil spillage cleanup.
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Affiliation(s)
- Yeqiang Lu
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University , Shanghai 201804, People's Republic of China
| | - Weizhong Yuan
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University , Shanghai 201804, People's Republic of China
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291
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Speed up the absorption of viscous crude oil spill by Joule-heated sorbent design. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9065-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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292
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Ning T, Yang G, Zhao W, Liu X. One-pot solvothermal synthesis of robust ambient-dried polyimide aerogels with morphology-enhanced superhydrophobicity for highly efficient continuous oil/water separation. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.04.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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293
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Antonietti M. A ‘hot’ oil sorbent for fast cleanup of viscous crude-oil spills. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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294
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Liu Z, Ou J, Wang H, Chen L, Xu J, Ye M. One-Pot Preparation of Macroporous Organic-Silica Monolith for the Organics-/Oil-Water Separation. ChemistrySelect 2017. [DOI: 10.1002/slct.201700345] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Zhongshan Liu
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Junjie Ou
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Hongwei Wang
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Lianfang Chen
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Junwen Xu
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Mingliang Ye
- Key Laboratory of Separation Science for Analytical Chemistry; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
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295
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Lee SS, Park J, Seo Y, Kim SH. Thermoresponsive Microcarriers for Smart Release of Hydrate Inhibitors under Shear Flow. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17178-17185. [PMID: 28471158 DOI: 10.1021/acsami.7b04692] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The hydrate formation in subsea pipelines can cause oil and gas well blowout. To avoid disasters, various chemical inhibitors have been developed to prevent or delay the hydrate formation and growth. Nevertheless, direct injection of the inhibitors results in environmental contamination and cross-suppression of inhibition performance in the presence of other inhibitors against corrosion and/or formation of scale, paraffin, and asphaltene. Here, we suggest a new class of microcarriers that encapsulate hydrate inhibitors at high concentration and release them on demand without active external triggering. The key to the success in microcarrier design lies in the temperature dependence of polymer brittleness. The microcarriers are microfluidically created to have an inhibitor-laden water core and polymer shell by employing water-in-oil-in-water (W/O/W) double-emulsion drops as a template. As the polymeric shell becomes more brittle at a lower temperature, there is an optimum range of shell thickness that renders the shell unstable at temperature responsible for hydrate formation under a constant shear flow. We precisely control the shell thickness relative to the radius by microfluidics and figure out the optimum range. The microcarriers with the optimum shell thickness are selectively ruptured by shear flow only at hydrate formation temperature and release the hydrate inhibitors. We prove that the released inhibitors effectively retard the hydrate formation without reduction of their performance. The microcarriers that do not experience the hydration formation temperature retain the inhibitors, which can be easily separated from ruptured ones for recycling by exploiting the density difference. Therefore, the use of microcarriers potentially minimizes the environmental damages.
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Affiliation(s)
- Sang Seok Lee
- Department of Chemical and Biomolecular Engineering (BK21+ Program) KAIST , Daejeon 305-701, Republic of Korea
| | - Juwoon Park
- Department of Naval Architecture and Ocean Engineering, RIMES, Seoul National University , Seoul 151-744, Republic of Korea
| | - Yutaek Seo
- Department of Naval Architecture and Ocean Engineering, RIMES, Seoul National University , Seoul 151-744, Republic of Korea
| | - Shin-Hyun Kim
- Department of Chemical and Biomolecular Engineering (BK21+ Program) KAIST , Daejeon 305-701, Republic of Korea
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296
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Ma Q, Cheng H, Yu Y, Huang Y, Lu Q, Han S, Chen J, Wang R, Fane AG, Zhang H. Preparation of Superhydrophilic and Underwater Superoleophobic Nanofiber-Based Meshes from Waste Glass for Multifunctional Oil/Water Separation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1700391. [PMID: 28306204 DOI: 10.1002/smll.201700391] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Indexed: 06/06/2023]
Abstract
The deterioration of water resources due to oil pollution, arising from oil spills, industrial oily wastewater discharge, etc., urgently requires the development of novel functional materials for highly efficient water remediation. Recently, superhydrophilic and underwater superoleophobic materials have drawn significant attention due to their low oil adhesion and selective oil/water separation. However, it is still a challenge to prepare low-cost, environmentally friendly, and multifunctional materials with superhydrophilicity and underwater superoleophobicity, which can be stably used for oil/water separation under harsh working conditions. Here, the preparation of nanofiber-based meshes derived from waste glass through a green and sustainable route is demonstrated. The resulting meshes exhibit excellent performance in the selective separation of a wide range of oil/water mixtures. Importantly, these meshes can also maintain the superwetting property and high oil/water separation efficiency under various harsh conditions. Furthermore, the as-prepared mesh can remove water-soluble contaminants simultaneously during the oil/water separation process, leading to multifunctional water purification. The low-cost and environmentally friendly fabrication, harsh-environment resistance, and multifunctional characteristics make these nanofiber-based meshes promising toward oil/water separation under practical conditions.
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Affiliation(s)
- Qinglang Ma
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
- Nanyang Environment and Water Research Institute, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Hongfei Cheng
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yifu Yu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ying Huang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Qipeng Lu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Shikui Han
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Junze Chen
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Rong Wang
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Anthony G Fane
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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297
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Li Y, Zhu D, Handschuh‐Wang S, Lv G, Wang J, Li T, Chen C, He C, Zhang J, Liu Y, Yang B, Zhou X. Bioinspired, Mechano-Regulated Interfaces for Rationally Designed, Dynamically Controlled Collection of Oil Spills from Water. GLOBAL CHALLENGES (HOBOKEN, NJ) 2017; 1:1600014. [PMID: 31565266 PMCID: PMC6607165 DOI: 10.1002/gch2.201600014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 12/31/2016] [Indexed: 05/15/2023]
Abstract
This study describes the fabrication of bioinspired mechano-regulated interfaces (MRI) for the separation and collection of oil spills from water. The MRI consists of 3D-interconnected, microporous structures of sponges made of ultrasoft elastomers (Ecoflex). To validate the MRI strategy, ecoflex sponges are first fabricated with a low-cost sugar-leaching method. This study then systematically investigates the absorption capacity (up to 1280% for chloroform) of the sponges to different oils and organic solvents. More importantly, the oil flux through the as-made sponges is controlled by mechanical deformation, which increases up to ≈33-fold by tensile strain applied to the sponge from 0 to 400%. On the basis of MRI, this study further demonstrates the application of ecoflex sponges in oil skimmers for selective collecting oil from water with high efficiency and durable recyclability. The as-developed MRI strategy has opened a new path to allow rational design and dynamical control toward developing high performance devices for oil permeation and selective collection of oil spills from water.
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Affiliation(s)
- Yaoyao Li
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Deyong Zhu
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Stephan Handschuh‐Wang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Guanghui Lv
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Jiahui Wang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Tianzhen Li
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Cancheng Chen
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Chuanxin He
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Junmin Zhang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Yizhen Liu
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Bo Yang
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Xuechang Zhou
- College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060P. R. China
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298
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Lei Z, Zhang G, Deng Y, Wang C. Thermoresponsive Melamine Sponges with Switchable Wettability by Interface-Initiated Atom Transfer Radical Polymerization for Oil/Water Separation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:8967-8974. [PMID: 28229584 DOI: 10.1021/acsami.6b14565] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Here we have obtained a temperature responsive melamine sponge with a controllable wettability between superhydrophilicity and superhydrophobicity by grafting the octadecyltrichlorosilane and thermoresponsive poly(N-isopropylacrylamide) (PNIPAAm) onto the surface of melamine sponge skeletons. The whole process included the silanization in which step the rough surface with low surface energy and the NH2 were provided, and the atom transfer radical polymerization which ensured the successful grafting of PNIPAAm onto the skeleton's surface. The product exhibits a good reversible switch between superhydrophilicity and superhydrophobicity by changing the temperature below or above the lower critical solution temperature (LCST, about 32 °C) of PNIPAAm, and the modified sponge still retains a good responsiveness after undergoing two temperature switches for 20 cycles. Simultaneously, the functionalized sponges could be used to absorb the oil under water at 37 °C, and they released the absorbed oil in various ways under water at 20 °C, showing wide potential applications including oil/water separation.
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Affiliation(s)
- Zhiwen Lei
- Research Institute of Materials Science, South China University of Technology , Guangzhou 510640, China
| | - Guangzhao Zhang
- Research Institute of Materials Science, South China University of Technology , Guangzhou 510640, China
| | - Yonghong Deng
- Department of Materials Science and Engineering, South University of Science and Technology of China , Shenzhen 518055, China
| | - Chaoyang Wang
- Research Institute of Materials Science, South China University of Technology , Guangzhou 510640, China
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299
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Li JJ, Zhou YN, Jiang ZD, Luo ZH. Electrospun Fibrous Mat with pH-Switchable Superwettability That Can Separate Layered Oil/Water Mixtures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13358-13366. [PMID: 27993022 DOI: 10.1021/acs.langmuir.6b03627] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Oil/water separation has inspired much research interest because of the damages caused to our natural environment due to oily wastewater. As a leader of advanced separation materials, electrospun polymeric fibrous mats having the properties of special surface wettability, high specific surface area, and high porosity will be a good membrane material for the separation of oily wastewater. Herein, we first prepared pH-responsive polymer poly(dimethylsiloxane)-block-poly(4-vinylpyridine) (PDMS-b-P4VP) mat using electrospinning technology. The PDMS-b-P4VP fibrous mat with a thickness of around 250 μm exhibits good pH-switchable oil/water wettability and is able to effectively separate oil or water from layered oil/water mixtures by gravity driven through adjusting the pH value. Stemming from its porous structure and pH-switchable superwettability, the electrospun PDMS-b-P4VP fibrous mat achieved controllable separations with high fluxes of approximately 9000 L h-1 m-2 for oil (hexane) and 27 000 L h-1 m-2 for water. In addition, extended studies on the polymer/silica nanoparticulate (silica NP) composite fibrous mats show that the addition of an inorganic component improves the thermal stability, pH-switchable wettability, and separation performance of the fibrous mats (approximately 9000 L h-1 m-2 for hexane and 32 000 L h-1 m-2 for water). It can be concluded from the results that both polymer fibrous mats and silica-filled composite fibrous mats are good candidates for on-demand layered oil/water mixture separation.
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Affiliation(s)
- Jin-Jin Li
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Yin-Ning Zhou
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Zhi-Dong Jiang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Zheng-Hong Luo
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
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