1
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Zhong L, Pan W, Shi Z, Mao C, Peng J, Huang J. Hollow Nitrogen-Doped porous carbon spheres decorated with atomically dispersed Ni-N 3 sites for efficient electrocatalytic CO 2 reduction. J Colloid Interface Sci 2023; 649:571-580. [PMID: 37364457 DOI: 10.1016/j.jcis.2023.06.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 06/28/2023]
Abstract
Hollow nitrogen-doped porous carbon spheres (HNCS) with plentiful coordination N sites, high surface area, and superior electrical conductivity are ideal catalyst supports due to their easily access of reactants to active sites and excellent stability. To date, nevertheless, little has been reported on HNCS as supports to metal-single-atomic sites for CO2 reduction (CO2R). Here we report our findings in preparation of nickel-single-atom catalysts anchored on HNCS (Ni SAC@HNCS) for highly efficient CO2R. The obtained Ni SAC@HNCS catalyst exhibits excellent activity and selectivity for the electrocatalytic CO2-to-CO conversion, achieving a Faradaic efficiency (FE) of 95.2% and a partial current density of 20.2 mA cm-2. When applied to a flow cell, the Ni SAC@HNCS delivers above 95% FECO over a wide potential range and a peak FECO of 99%. Further, there is no obvious degradation in FECO and the current for CO production during continuous electrocatalysis of 9 h, suggesting good stability of Ni SAC@HNCS.
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Affiliation(s)
- Lei Zhong
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
| | - Wenhao Pan
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
| | - Zhikai Shi
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
| | - Chengwei Mao
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
| | - Jiayao Peng
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
| | - Jianlin Huang
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China.
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2
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Deng B, Li B, Du B, Zhou S, Luo R, Li H. Research on preparation and properties of pH responsive superhydrophobic coating modified by SEBS. AIP ADVANCES 2022; 12:075022. [DOI: 10.1063/5.0095056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/29/2022] [Indexed: 09/01/2023]
Abstract
Smart materials with reversible wettability have attracted a lot of attention for application in sewage treatment. In this work, a pH-responsive polymer was prepared via the one-step free radical polymerization of 3-(trimethoxysilyl) acrylate and 2-dimethylaminoethyl methacrylate. The obtained pH-responsive polymer was then coated with a hydrogenated styrene–ethylene–butadiene–styrene block copolymer to endow the material with pH-responsive switchable superhydrophilic and superhydrophobic properties. Due to the excellent self-cleaning and mechanical stability of the coating, it was used to modify paper, which was then successfully utilized in the treatment of oily wastewater, showing great potential for use in advanced applications.
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Affiliation(s)
- Bin Deng
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, People's Republic of China
| | - Bin Li
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, People's Republic of China
| | - Bin Du
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, People's Republic of China
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710048, People's Republic of China
| | - Shisheng Zhou
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, People's Republic of China
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710048, People's Republic of China
| | - Rubai Luo
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, People's Republic of China
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710048, People's Republic of China
| | - Huailin Li
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, People's Republic of China
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710048, People's Republic of China
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3
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Cyclic voltammetry and XPS studies of poly (aniline-co-3-aminophenol). Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04213-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Feng J, Weng X, Mandujano MAG, Muminov B, Ahuja G, Méndez ER, Yin Y, Vuong LT. Insect-inspired nanofibrous polyaniline multi-scale films for hybrid polarimetric imaging with scattered light. NANOSCALE HORIZONS 2022; 7:319-327. [PMID: 35166291 DOI: 10.1039/d1nh00465d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We demonstrate a bio-inspired coating for novel imaging and sensing designs: the coating sorts different colors and linear polarizations. This coating, composed of conducting, nanofibrous polyaniline in an inverse opal film (PANI-IOF), is inexpensive and can feasibly be deposited over large areas on a range of flexible and non-flat substrates. With PANI IOFs, light is scattered into azimuthally polarized Debye rings. Subsequently, the diffracted speckle patterns carry compressed representations of the polarized illumination, which we reconstruct using shallow neural networks.
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Affiliation(s)
- Ji Feng
- Department of Mechanical Engineering, University of California, Riverside, Riverside, CA 92521, USA.
| | - Xiaojing Weng
- Department of Mechanical Engineering, University of California, Riverside, Riverside, CA 92521, USA.
| | - Miguel A G Mandujano
- Department of Mechanical Engineering, University of California, Riverside, Riverside, CA 92521, USA.
| | - Baurzhan Muminov
- Department of Mechanical Engineering, University of California, Riverside, Riverside, CA 92521, USA.
| | - Gaurav Ahuja
- Department of Mechanical Engineering, University of California, Riverside, Riverside, CA 92521, USA.
| | - Eugenio R Méndez
- División de Física Aplicada, CICESE, Carretera Ensenada-Tijuana 3918, Ensenada, BC, 22860, Mexico
| | - Yadong Yin
- Department of Chemistry, University of California Riverside, Riverside, CA 92521, USA
| | - Luat T Vuong
- Department of Mechanical Engineering, University of California, Riverside, Riverside, CA 92521, USA.
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5
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Liu H, Zhang L, Huang J, Mao J, Chen Z, Mao Q, Ge M, Lai Y. Smart surfaces with reversibly switchable wettability: Concepts, synthesis and applications. Adv Colloid Interface Sci 2022; 300:102584. [PMID: 34973464 DOI: 10.1016/j.cis.2021.102584] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/30/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022]
Abstract
As a growing hot research topic, manufacturing smart switchable surfaces has attracted much attention in the past a few years. The state-of-the-art study on reversibly switchable wettability of smart surfaces has been presented in this systematic review. External stimuli are brought about to render the alteration in chemical conformation and surface morphology to drive the wettability switch. Here, starting from the fundamental theories related to the surfaces wetting principles, highlights on different triggers for switchable wettability, such as pH, light, ions, temperature, electric field, gas, mechanical force, and multi-stimuli are discussed. Different applications that have various wettability requirement are targeted, including oil-water separation, droplets manipulation, patterning, liquid transport, and so on. This review aims to provide a deep insight into responsive interfacial science and offer guidance for smart surface engineering. It ends with a summary of current challenges, future opportunities, and potential solutions on smart switch of wettability on superwetting surfaces.
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Affiliation(s)
- Hui Liu
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China
| | - Li Zhang
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China
| | - Jianying Huang
- National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), College of Chemical Engineering, Fuzhou 350116, PR China
| | - Jiajun Mao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, PR China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore, Singapore
| | - Qinghui Mao
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China.
| | - Mingzheng Ge
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile & Clothing, Nantong University, Nantong 226019, PR China; National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian 271000, PR China.
| | - Yuekun Lai
- National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), College of Chemical Engineering, Fuzhou 350116, PR China.
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6
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7
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Li JJ, Zhou YN, Luo ZH. Polymeric materials with switchable superwettability for controllable oil/water separation: A comprehensive review. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.06.009] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Diouf D, Darmanin T, Diouf A, Dieng SY, Guittard F. Surface Nanostructuration and Wettability of Electrodeposited Poly(3,4-ethylenedioxypyrrole) and Poly(3,4-propylenedioxypyrrole) Films Substituted by Aromatic Groups. ACS OMEGA 2018; 3:8393-8400. [PMID: 31458969 PMCID: PMC6644621 DOI: 10.1021/acsomega.8b00871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 06/26/2018] [Indexed: 06/10/2023]
Abstract
In the aim to obtain parahydrophobic materials (both high contact angles and high hysteresis) for possible applications in water harvesting systems, we report the synthesis of novel 3,4-ethylenedioxypyrrole (EDOP) and 3,4-propylenedioxypyrrole (ProDOP) monomers with aromatic rings on the 3,4-alkylenedioxy bridge and the resulting conducting polymer films were prepared by electropolymerization. We show that the surface properties can be tuned by the nature of the aromatic ring (phenyl, biphenyl, diphenyl, naphthalene, fluorene, and pyrene) and the polymerizable core (EDOP or ProDOP). The best results are obtained with both EDOP and diphenyl, with which extremely high hydrophobic properties (up to 116°) are obtained, even if the polymers are intrinsically hydrophilic. These surfaces could be applied in the future, for example, in water harvesting systems or in water/oil separation membranes. The synthesis strategy is extremely interesting, and many other molecules will be envisaged in the future.
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Affiliation(s)
- Djibril Diouf
- Faculté des
Sciences et Techniques, Département de Chimie, Université Cheikh Anta Diop, 5005 Dakar-Fann, Senegal
| | - Thierry Darmanin
- NICE Lab, IMREDD, Université Côte d’Azur, 61-63 Av. Simon Veil, 06200 Nice, France
| | - Alioune Diouf
- Faculté des
Sciences et Techniques, Département de Chimie, Université Cheikh Anta Diop, 5005 Dakar-Fann, Senegal
| | - Samba Yandé Dieng
- Faculté des
Sciences et Techniques, Département de Chimie, Université Cheikh Anta Diop, 5005 Dakar-Fann, Senegal
| | - Frédéric Guittard
- NICE Lab, IMREDD, Université Côte d’Azur, 61-63 Av. Simon Veil, 06200 Nice, France
- Department
of Bioengineering, University California
Riverside, Riverside, Riverside, California 92521, United States
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9
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Xu Q, Huang T, Li S, Li K, Li C, Liu Y, Wang Y, Yu C, Zhou Y. Emulsion‐Assisted Polymerization‐Induced Hierarchical Self‐Assembly of Giant Sea Urchin‐like Aggregates on a Large Scale. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802833] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qingsong Xu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Tong Huang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Shanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Ke Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chuanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yannan Liu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yuling Wang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chunyang Yu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yongfeng Zhou
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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10
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Xu Q, Huang T, Li S, Li K, Li C, Liu Y, Wang Y, Yu C, Zhou Y. Emulsion‐Assisted Polymerization‐Induced Hierarchical Self‐Assembly of Giant Sea Urchin‐like Aggregates on a Large Scale. Angew Chem Int Ed Engl 2018; 57:8043-8047. [DOI: 10.1002/anie.201802833] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/02/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Qingsong Xu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Tong Huang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Shanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Ke Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chuanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yannan Liu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yuling Wang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chunyang Yu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yongfeng Zhou
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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11
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Wang Y, Xu S, Liu W, Cheng H, Chen S, Liu X, Liu J, Tai Q, Hu C. Facile Fabrication of Urchin-like Polyaniline Microspheres for Electrochemical Energy Storage. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.09.109] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Diouf D, Diouf A, Mortier C, Darmanin T, Dieng SY, Guittard F. Poly(3,4-propylenedioxypyrrole) Nanofibers with Branched Alkyl Chains by Electropolymerization to Obtain Sticky Surfaces with High Contact Angles. ChemistrySelect 2017. [DOI: 10.1002/slct.201701756] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Djibril Diouf
- Université Cheikh Anta Diop; Faculté des Sciences et Techniques; Département de Chimie, B.P.; 5005 Dakar Sénégal
| | - Alioune Diouf
- Université Cheikh Anta Diop; Faculté des Sciences et Techniques; Département de Chimie, B.P.; 5005 Dakar Sénégal
| | - Claudio Mortier
- Université Côte d'Azur; NICE Lab, IMREDD; Parc Valrose 06100 Nice France
| | - Thierry Darmanin
- Université Côte d'Azur; NICE Lab, IMREDD; Parc Valrose 06100 Nice France
| | - Samba Yandé Dieng
- Université Cheikh Anta Diop; Faculté des Sciences et Techniques; Département de Chimie, B.P.; 5005 Dakar Sénégal
| | - Frédéric Guittard
- Université Côte d'Azur; NICE Lab, IMREDD; Parc Valrose 06100 Nice France
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13
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Ramos Chagas G, Darmanin T, Godeau G, Amigoni S, Guittard F. Superhydrophobic properties of electrodeposited fluorinated polypyrenes. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2016.11.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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14
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Naseem A, Tabasum S, Zia KM, Zuber M, Ali M, Noreen A. Lignin-derivatives based polymers, blends and composites: A review. Int J Biol Macromol 2016; 93:296-313. [DOI: 10.1016/j.ijbiomac.2016.08.030] [Citation(s) in RCA: 202] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 08/06/2016] [Accepted: 08/09/2016] [Indexed: 12/18/2022]
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15
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Kim D, Tian Y, Choi HJ. Seeded swelling polymerized sea urchin-like core–shell typed polystyrene/polyaniline particles and their electric stimuli-response. RSC Adv 2015. [DOI: 10.1039/c5ra15835d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sea urchin-like polystyrene/polyaniline particles were synthesized by a seeded swelling polymerization. When dispersed in silicone oil to produce an electrorheological (ER) fluid, they exhibit typical ER behaviors with better dispersion stability.
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Affiliation(s)
- Dana Kim
- Department of Polymer Science and Engineering
- Inha University
- Incheon 402-751
- Korea
| | - Yu Tian
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- People's Republic of China
| | - Hyoung Jin Choi
- Department of Polymer Science and Engineering
- Inha University
- Incheon 402-751
- Korea
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16
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Yu J, Luan Y, Qi Y, Hou J, Dong W, Yang M, Wang G. Hierarchical PS/PANI nanostructure supported Cu(ii) complexes: facile synthesis and study of catalytic applications in aerobic oxidation. RSC Adv 2014. [DOI: 10.1039/c4ra06944g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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17
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Tao J, Yang M, Gao H, Yu J, Wang G. Synthesis and assembly of oligoaniline for hierarchical structures within stable and mild acid system. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.03.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Liang C, Liu Q, Xu Z. Surfactant-free switchable emulsions using CO2-responsive particles. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6898-6904. [PMID: 24679949 DOI: 10.1021/am5007113] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Surfactant-free emulsions are prepared using bi-wetting particles which occupy the oil-water interface to effectively reduce the oil-water interfacial area. The equilibrium position of the particle at the interface is determined by its wettability. CO2-reponsive chemical functional groups are grafted onto the surface of silica particles. Particles with only CO2-switchable functional groups are capable of stabilizing oil-in-water emulsions. Particles prepared with both CO2-responsive and hydrophobic chemical functional groups on its surface are capable of stabilizing water-in-oil emulsions. Emulsion stability is disturbed when the wettability of the stabilizing particle is altered by introducing CO2 gas to the biphasic mixture, leading to phase separation of emulsions prepared using the functionalized particles. The emulsion stability can be re-established by the removal of CO2 through air sparging. The presence of CO2 imposes positive surface charge to the responsive particles, increasing wettability and, consequently, the ability of the particles to destabilize emulsions.
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Affiliation(s)
- Chen Liang
- 7th Floor, ECERF, Department of Chemical and Material Engineering, University of Alberta , Edmonton, Alberta T6G 2V4, Canada
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19
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Synthesis of hierarchical Polystyrene/Polyaniline@Au nanostructures of different surface states and studies of their catalytic properties. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5106-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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20
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21
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Yang M, Guo Y, Wu Q, Luan Y, Wang G. Synthesis and properties of amphiphilic nonspherical SPS/PS composite particles by multi-step seeded swelling polymerization. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.02.064] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Yang M, Cao L, Tan L. Synthesis of sea urchin-like polystyrene/polyaniline microspheres by seeded swelling polymerization and their catalytic application. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.10.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Uguzdogan E. Synthesis and characterization of hydrophilic and spherical poly(glycerol dimethacrylate-co-glycerol-1,3-diglycerolate diacrylate) microbeads. Des Monomers Polym 2013. [DOI: 10.1080/15685551.2012.725216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Erdal Uguzdogan
- a Department of Chemical Engineering , Pamukkale University , 20070 , Kinikli , Denizli , Turkey
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24
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Zhao Y, Tomšík E, Wang J, Morávková Z, Zhigunov A, Stejskal J, Trchová M. Self-Assembly of Aniline Oligomers. Chem Asian J 2012; 8:129-37. [DOI: 10.1002/asia.201200836] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 10/17/2012] [Indexed: 11/09/2022]
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25
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Bellanger H, Darmanin T, Taffin de Givenchy E, Guittard F. Superhydrophobic hollow spheres by electrodeposition of fluorinated poly(3,4-ethylenedithiopyrrole). RSC Adv 2012. [DOI: 10.1039/c2ra21665e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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