疏水型气凝胶的制备及应用
|
摘要
气凝胶是一种多孔固体材料,具有高比表面积、高孔隙率、低密度、低热导率和高吸附性等特性,在隔热隔音材料、光学器件和超级电容器等方面具有广泛的应用前景。对气凝胶进行改性可进一步拓展气凝胶的应用性能。疏水改性是近年来气凝胶研究的一个热点方向,可赋予气凝胶对不同液体特殊的亲和性,疏水型气凝胶目前多用于吸附和隔热材料等。疏水改性主要方法有原位法、化学气相沉积法、表面后处理法和冷等离子改进技术等。主要针对气凝胶疏水改性方法及应用进行了介绍。
Aerogel is a kind of porous nanostructured material that possesses many advantages including high specific surface area,high porosity,low density,low thermal conductivity and high adsorption properties,etc.Aerogels have been widely used in the fields of thermal insulation,sound insulation,optical devices,supercapacitors and so forth.Proper modification of aerogels can further expand the function of aerogels.Hydrophobic modification,which can make aerogels with specific affinity for different liquids,is a hot research direction of aerogels in recent years.Hydrophobic aerogels are commonly used in adsorbing materials and thermal insulation materials.The main methods reported for hydrophobic modification are in-situ treatment,chemical vapor deposition,surface post-processing and cold plasma technology.The preparation methods and application of hydrophobic aerogels were mainly introduced.
Aerogel is a kind of porous nanostructured material that possesses many advantages including high specific surface area,high porosity,low density,low thermal conductivity and high adsorption properties,etc.Aerogels have been widely used in the fields of thermal insulation,sound insulation,optical devices,supercapacitors and so forth.Proper modification of aerogels can further expand the function of aerogels.Hydrophobic modification,which can make aerogels with specific affinity for different liquids,is a hot research direction of aerogels in recent years.Hydrophobic aerogels are commonly used in adsorbing materials and thermal insulation materials.The main methods reported for hydrophobic modification are in-situ treatment,chemical vapor deposition,surface post-processing and cold plasma technology.The preparation methods and application of hydrophobic aerogels were mainly introduced.
引文
[1]Kistler S S.Coherent expanded aerogels and jellies[J].Nature,1931,127(3211):741.
[2]Kistler S S.Coherent expanded-aerogels[J].The Journal of Physical Chemistry,1932,36(1):52-64.
[3]Mcnaught A D.Compendium of chemical terminology[M].Oxford:Blackwell Science,1997.
[4]Sehaqui H,Salajkov M,Zhou Q,et al.Mechanical performance tailoring of tough ultra-high porosity foams prepared from cellulose I nanofiber suspensions[J].Soft Matter,2010,6(8):1824-1832.
[5]Sehaqui H,Zhou Q,Berglund L A.High-porosity aerogels of high specific surface area prepared from nanofibrillated cellulose(NFC)[J].Composites Science and Technology,2011,71(13):1593-1599.
[6]Komameni S,Roy R,Selvaraj U,et al.Nanocomposite aerogels:the SiO2-Al2O3 system[J].Journal of Materials Research,1993,8(12):3163-3167.
[7]Wu J,Cooper D,MIiller R.Virtual impactor aerosol concentrator for cleanroom monitoring[J].The Journal of Environmental Sciences,1989,32(4):52-56.
[8]Barral K.Low-density organic aerogels by double-catalysedsynthesis[J].Journal of Non-Crystalline Solids,1998,225:46-50.
[9]Cheng H,Gu B,Pennefather M P,et al.Cotton aerogels and cotton-cellulose aerogels from environmental waste for oil spillage cleanup[J].Materials&Design,2017,130:452-458.
[10]Shlyakhtina A V,Oh Y J.Transparent SiO2aerogels prepared by ambient pressure drying with ternary azeotropes as components of pore fluid[J].Journal of Non-Crystalline Solids,2008,354(15):1633-1642.
[11]Hrubesh W.Aerogels:the world's lightest solids[J].JChemInd,1990,24:824-827.
[12]李伟.溶胶-凝胶法制备二氧化硅气凝胶纳米材料的研究[D].湘潭:湘潭大学,2002.
[13]Zanini M,Lavoratti A,Lazzari L K,et al.Producing aerogels from silanized cellulose nanofiber suspension[J].Cellulose,2017,24(2):769-779.
[14]Martin-Jimeno F J,Suarez-Garcia F,Paredes J I,et al.Activated carbon xerogels with a cellular morphology derived from hydrothermally carbonized glucose-graphene oxide hybrids and their performance towards CO2and dye adsorption[J].Carbon,2015,81:137-147.
[15]Mi X,Huang G,Xie W,et al.Preparation of graphene oxide aerogel and its adsorption for Cu2+ions[J].Carbon,2012,50(13):4856-4864.
[16]Andjelkovic I,Tran D N H,Kabiri S,et al.Graphene aerogels decorated withα-FeOOH nanoparticles for efficient adsorption of arsenic from contaminated waters[J].ACS applied Materials&Interfaces,2015,7(18):9758-9766.
[17]Liao S,Zhai T,Xia H.Highly adsorptive graphene aerogel microspheres with center-diverging microchannel structures[J].Journal of Materials Chemistry A,2016,4(3):1068-1077.
[18]Kabiri S,Tran D N H,Altalhi T,et al.Outstanding adsorption performance of graphene-carbon nanotube aerogels for continuous oil removal[J].Carbon,2014,80:523-533.
[19]Liang J,Cai Z,Li L,et al.Scalable and facile preparation of graphene aerogel for air purification[J].RSC Advances,2014,4(10):4843-4847.
[20]韩桂芳,沈晓冬,吴亚迪,等.甲基三乙氧基硅烷改性制备疏水SiO2气凝胶[J].南京工业大学学报(自然科学版),2010,32(1):55-58.
[21]Ren H,Zhu J,Bi Y,et al.One-step fabrication of transparent hydrophobic silica aerogels via in situ surface modification in drying process[J].Journal of Sol-Gel Science and Technology,2016,80(3):635-641.
[22]Zhang R,Wan W,Qiu L,et al.Preparation of hydrophobic polyvinyl alcohol aerogel via the surface modification of boron nitride for environmental remediation[J].Applied Surface Science,2017,419:342-347.
[23]Mulyadi A,Zhang Z,Deng Y.Fluorine-free oil absorbents made from cellulose nanofibrilaerogels[J].ACS Applied Materials&Interfaces,2016,8(4):2732-2740.
[24]Liao Q,Su X,Zhu W,et al.Flexible and durable cellulose aerogels for highly effective oil/water separation[J].RSC Advances,2016,6(68):63773-63781.
[25]Ma Q,Liu Y,Dong Z,et al.Hydrophobic and nanoporous chitosan-silica composite aerogels for oil absorption[J].Journal of Applied Polymer Science,2015,132(15):41770.
[26]Kettunen M,Silvennoinen R J,Houbenov N,et al.Photoswitchablesuperabsorbency based on nanocellulose aerogels[J].Advanced Functional Materials,2011,21(3):510-517.
[27]Wan C,Li J.Cellulose aerogels based on a green NaOH/PEGsolution:preparation,characterization and influence of molecular weight of PEG[J].Fibers and Polymers,2015,16(6):1230-1236.
[28]Cervin N T,Aulin C,Larsson P T,et al.Ultra porous nanocellulose aerogels as separation medium for mixtures of oil/water liquids[J].Cellulose,2012,19(2):401-410.
[29]Zheng Q,Cai Z,Gong S.Green synthesis of polyvinyl alcohol(PVA)-cellulose nanofibril(CNF)hybrid aerogels and their use as superabsorbents[J].Journal of Materials Chemistry A,2014,2(9):3110-3118.
[30]Gurav J L,Jung I K,Park H H,et al.Silica aerogel:synthesis and applications[J].Journal of Nanomaterials,2010,2010:23.
[31]Rueda M,Sanz-Moral L M,Nieto-Márquez A,et al.Production of silica aerogel microparticles loaded with ammonia borane by batch and semicontinuous supercritical drying techniques[J].The Journal of Supercritical Fluids,2014,92:299-310.
[32]Shewale P M,Rao A V,Rao A P.Effect of different trimethylsilylating agents on the hydrophobic and physical properties of silica aerogels[J].Applied Surface Science,2008,254(21):6902-6907.
[33]Hu W,Li M,Chen W,et al.Preparation of hydrophobic silica aerogel with kaolin dried at ambient pressure[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2016,501:83-91.
[34]Schwertfeger F,Frank D,Schmidt M.Hydrophobic waterglass based aerogels without solvent exchange or supercritical drying[J].Journal of Non-Crystalline Solids,1998,225:24-29.
[35]Cheng Y,Xia M,Luo F,et al.Effect of surface modification on physical properties of silica aerogels derived from fly ash acid sludge[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2016,490:200-206.
[36]Shi F,Wang L,Liu J.Synthesis and characterization of silica aerogels by a novel fast ambient pressure drying process[J].Materials Letters,2006,60(29):3718-3722.
[37]万才超,卢芸,孙庆丰,等.新型木质纤维素气凝胶的制备,表征及疏水吸油性能[J].科技导报,2014,32(4-5):79-85.
[38]张宁,陈伟,劳里林,等.微乳液法制备SiO2超疏水性气凝胶粉体[J].功能材料,2015,46(10):10114-10118.
[39]应军,苏勋家,侯根良,等.碳气凝胶的制备及润湿性能研究[J].兵器材料科学与工程,2012,35(4):63-65.
[40]Lin Y,Ehlert G J,Bukowsky C,et al.Superhydrophobic functionalized grapheneaerogels[J].ACS Applied Materials&Interfaces,2011,3(7):2200-2203.
[41]Wu L,Huang Y,Wang Z,et al.Fabrication of hydrophobic alumina aerogel monoliths by surface modification and ambient pressure drying[J].Applied Surface Science,2010,256(20):5973-5977.
[42]Zhang H X,He X D,He F.Microstructural characterization and properties of ambient-dried SiO2 matrix aerogel doped with opacified TiO2powder[J].Journal of Alloys and Compounds,2009,469(1):366-369.
[43]黄雪梅.植物纤维在离子液体中的溶解、改性及气凝胶制备的研究[D].桂林:广西师范学院,2015.
[44]Chung Y M,Jung M J,Lee M W,et al.Surface modification effects on film growth with atmospheric Ar/Ar+O2plasma[J].Surface and Coatings Technology,2003,174(9):1038-1042.
[45]Meichsner J,Zeuner M,Krames B,et al.Plasma diagnostics for surface modification of polymers[J].Surface and Coatings Technology,1998,98(1-3):1565-1571.
[46]Pascu M,Vasile C,Gheorghiu M.Modification of polymer blend properties by argon plasma/electron beam treatment:surface properties[J].Materials Chemistry and Physics,2003,80(2):548-554.
[47]Thoms C,Gladwin S D,Robert F W.Use of plasma glow discharge for surface-engineering biomolecules to enhance blood compatibility of Dacron and PTEF vascular prosthesis[J].Biomaterials,2000,21(7):699-712.
[48]Keil M,Rastomjee C S,Rajagopal A,et al.Argon plasma-induced modifications at the surface of polycarbonate thin films[J].Applied Surface Science,1998,125(3):273-286.
[49]Chandy T,Das G S,Wilson R F,et al.Use of plasma glow for surface-engineering biomolecules to enhance bloodcompatibility of Dacron and PTFE vascular prosthesis[J].Biomaterials,2000,21(7):699-712.
[50]Zou L,Vilalis I,Steele D,et al.Surface hydrophilic modification of RO membranes by plasma polymerization for low organic fouling[J].Journal of Membrane Science,2011,369(1):420-428.
[51]Fresnais J,Benyahia L,Chapel J P,et al.Polyethylene ultrahydrophobic surface:synthesis and original properties[J].The European Physical Journal-Applied Physics,2004,26(3):209-214.
[52]石建军.纤维素及纤维素-SiO2复合气凝胶的制备、性能和疏水改性[D].海口:海南大学,2013.
[53]Cheng Y,Lu L,Zhang W,et al.Reinforced low density alginate-based aerogels:preparation,hydrophobic modification and characterization[J].Carbohydrate Polymers,2012,88(3):1093-1099.
[54]Zeng T,Li A,Li Z,et al.Mechanical reinforcement of a cellulose aerogel with nanocrystalline cellulose as reinforcer[J].RSC Advances,2017,7(55):34461-34465.
[55]Lin R,Li A,Zheng T,et al.Hydrophobic and flexible cellulose aerogel as an efficient,green and reusable oil sorbent[J].RSCAdvances,2015,5(100):82027-82033.
[56]Wu M H.Simple poly(dimethylsiloxane)surface modification to control cell adhesion[J].Surface and Interface Analysis,2009,41(1):11-16.
[57]Sharma V,Dhayal M,Shivaprasad S M,et al.Surface characterization of plasma-treated and PEG-grafted PDMS for micro fluidic applications[J].Vacuum,2007,81(9):1094-1100.
[2]Kistler S S.Coherent expanded-aerogels[J].The Journal of Physical Chemistry,1932,36(1):52-64.
[3]Mcnaught A D.Compendium of chemical terminology[M].Oxford:Blackwell Science,1997.
[4]Sehaqui H,Salajkov M,Zhou Q,et al.Mechanical performance tailoring of tough ultra-high porosity foams prepared from cellulose I nanofiber suspensions[J].Soft Matter,2010,6(8):1824-1832.
[5]Sehaqui H,Zhou Q,Berglund L A.High-porosity aerogels of high specific surface area prepared from nanofibrillated cellulose(NFC)[J].Composites Science and Technology,2011,71(13):1593-1599.
[6]Komameni S,Roy R,Selvaraj U,et al.Nanocomposite aerogels:the SiO2-Al2O3 system[J].Journal of Materials Research,1993,8(12):3163-3167.
[7]Wu J,Cooper D,MIiller R.Virtual impactor aerosol concentrator for cleanroom monitoring[J].The Journal of Environmental Sciences,1989,32(4):52-56.
[8]Barral K.Low-density organic aerogels by double-catalysedsynthesis[J].Journal of Non-Crystalline Solids,1998,225:46-50.
[9]Cheng H,Gu B,Pennefather M P,et al.Cotton aerogels and cotton-cellulose aerogels from environmental waste for oil spillage cleanup[J].Materials&Design,2017,130:452-458.
[10]Shlyakhtina A V,Oh Y J.Transparent SiO2aerogels prepared by ambient pressure drying with ternary azeotropes as components of pore fluid[J].Journal of Non-Crystalline Solids,2008,354(15):1633-1642.
[11]Hrubesh W.Aerogels:the world's lightest solids[J].JChemInd,1990,24:824-827.
[12]李伟.溶胶-凝胶法制备二氧化硅气凝胶纳米材料的研究[D].湘潭:湘潭大学,2002.
[13]Zanini M,Lavoratti A,Lazzari L K,et al.Producing aerogels from silanized cellulose nanofiber suspension[J].Cellulose,2017,24(2):769-779.
[14]Martin-Jimeno F J,Suarez-Garcia F,Paredes J I,et al.Activated carbon xerogels with a cellular morphology derived from hydrothermally carbonized glucose-graphene oxide hybrids and their performance towards CO2and dye adsorption[J].Carbon,2015,81:137-147.
[15]Mi X,Huang G,Xie W,et al.Preparation of graphene oxide aerogel and its adsorption for Cu2+ions[J].Carbon,2012,50(13):4856-4864.
[16]Andjelkovic I,Tran D N H,Kabiri S,et al.Graphene aerogels decorated withα-FeOOH nanoparticles for efficient adsorption of arsenic from contaminated waters[J].ACS applied Materials&Interfaces,2015,7(18):9758-9766.
[17]Liao S,Zhai T,Xia H.Highly adsorptive graphene aerogel microspheres with center-diverging microchannel structures[J].Journal of Materials Chemistry A,2016,4(3):1068-1077.
[18]Kabiri S,Tran D N H,Altalhi T,et al.Outstanding adsorption performance of graphene-carbon nanotube aerogels for continuous oil removal[J].Carbon,2014,80:523-533.
[19]Liang J,Cai Z,Li L,et al.Scalable and facile preparation of graphene aerogel for air purification[J].RSC Advances,2014,4(10):4843-4847.
[20]韩桂芳,沈晓冬,吴亚迪,等.甲基三乙氧基硅烷改性制备疏水SiO2气凝胶[J].南京工业大学学报(自然科学版),2010,32(1):55-58.
[21]Ren H,Zhu J,Bi Y,et al.One-step fabrication of transparent hydrophobic silica aerogels via in situ surface modification in drying process[J].Journal of Sol-Gel Science and Technology,2016,80(3):635-641.
[22]Zhang R,Wan W,Qiu L,et al.Preparation of hydrophobic polyvinyl alcohol aerogel via the surface modification of boron nitride for environmental remediation[J].Applied Surface Science,2017,419:342-347.
[23]Mulyadi A,Zhang Z,Deng Y.Fluorine-free oil absorbents made from cellulose nanofibrilaerogels[J].ACS Applied Materials&Interfaces,2016,8(4):2732-2740.
[24]Liao Q,Su X,Zhu W,et al.Flexible and durable cellulose aerogels for highly effective oil/water separation[J].RSC Advances,2016,6(68):63773-63781.
[25]Ma Q,Liu Y,Dong Z,et al.Hydrophobic and nanoporous chitosan-silica composite aerogels for oil absorption[J].Journal of Applied Polymer Science,2015,132(15):41770.
[26]Kettunen M,Silvennoinen R J,Houbenov N,et al.Photoswitchablesuperabsorbency based on nanocellulose aerogels[J].Advanced Functional Materials,2011,21(3):510-517.
[27]Wan C,Li J.Cellulose aerogels based on a green NaOH/PEGsolution:preparation,characterization and influence of molecular weight of PEG[J].Fibers and Polymers,2015,16(6):1230-1236.
[28]Cervin N T,Aulin C,Larsson P T,et al.Ultra porous nanocellulose aerogels as separation medium for mixtures of oil/water liquids[J].Cellulose,2012,19(2):401-410.
[29]Zheng Q,Cai Z,Gong S.Green synthesis of polyvinyl alcohol(PVA)-cellulose nanofibril(CNF)hybrid aerogels and their use as superabsorbents[J].Journal of Materials Chemistry A,2014,2(9):3110-3118.
[30]Gurav J L,Jung I K,Park H H,et al.Silica aerogel:synthesis and applications[J].Journal of Nanomaterials,2010,2010:23.
[31]Rueda M,Sanz-Moral L M,Nieto-Márquez A,et al.Production of silica aerogel microparticles loaded with ammonia borane by batch and semicontinuous supercritical drying techniques[J].The Journal of Supercritical Fluids,2014,92:299-310.
[32]Shewale P M,Rao A V,Rao A P.Effect of different trimethylsilylating agents on the hydrophobic and physical properties of silica aerogels[J].Applied Surface Science,2008,254(21):6902-6907.
[33]Hu W,Li M,Chen W,et al.Preparation of hydrophobic silica aerogel with kaolin dried at ambient pressure[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2016,501:83-91.
[34]Schwertfeger F,Frank D,Schmidt M.Hydrophobic waterglass based aerogels without solvent exchange or supercritical drying[J].Journal of Non-Crystalline Solids,1998,225:24-29.
[35]Cheng Y,Xia M,Luo F,et al.Effect of surface modification on physical properties of silica aerogels derived from fly ash acid sludge[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2016,490:200-206.
[36]Shi F,Wang L,Liu J.Synthesis and characterization of silica aerogels by a novel fast ambient pressure drying process[J].Materials Letters,2006,60(29):3718-3722.
[37]万才超,卢芸,孙庆丰,等.新型木质纤维素气凝胶的制备,表征及疏水吸油性能[J].科技导报,2014,32(4-5):79-85.
[38]张宁,陈伟,劳里林,等.微乳液法制备SiO2超疏水性气凝胶粉体[J].功能材料,2015,46(10):10114-10118.
[39]应军,苏勋家,侯根良,等.碳气凝胶的制备及润湿性能研究[J].兵器材料科学与工程,2012,35(4):63-65.
[40]Lin Y,Ehlert G J,Bukowsky C,et al.Superhydrophobic functionalized grapheneaerogels[J].ACS Applied Materials&Interfaces,2011,3(7):2200-2203.
[41]Wu L,Huang Y,Wang Z,et al.Fabrication of hydrophobic alumina aerogel monoliths by surface modification and ambient pressure drying[J].Applied Surface Science,2010,256(20):5973-5977.
[42]Zhang H X,He X D,He F.Microstructural characterization and properties of ambient-dried SiO2 matrix aerogel doped with opacified TiO2powder[J].Journal of Alloys and Compounds,2009,469(1):366-369.
[43]黄雪梅.植物纤维在离子液体中的溶解、改性及气凝胶制备的研究[D].桂林:广西师范学院,2015.
[44]Chung Y M,Jung M J,Lee M W,et al.Surface modification effects on film growth with atmospheric Ar/Ar+O2plasma[J].Surface and Coatings Technology,2003,174(9):1038-1042.
[45]Meichsner J,Zeuner M,Krames B,et al.Plasma diagnostics for surface modification of polymers[J].Surface and Coatings Technology,1998,98(1-3):1565-1571.
[46]Pascu M,Vasile C,Gheorghiu M.Modification of polymer blend properties by argon plasma/electron beam treatment:surface properties[J].Materials Chemistry and Physics,2003,80(2):548-554.
[47]Thoms C,Gladwin S D,Robert F W.Use of plasma glow discharge for surface-engineering biomolecules to enhance blood compatibility of Dacron and PTEF vascular prosthesis[J].Biomaterials,2000,21(7):699-712.
[48]Keil M,Rastomjee C S,Rajagopal A,et al.Argon plasma-induced modifications at the surface of polycarbonate thin films[J].Applied Surface Science,1998,125(3):273-286.
[49]Chandy T,Das G S,Wilson R F,et al.Use of plasma glow for surface-engineering biomolecules to enhance bloodcompatibility of Dacron and PTFE vascular prosthesis[J].Biomaterials,2000,21(7):699-712.
[50]Zou L,Vilalis I,Steele D,et al.Surface hydrophilic modification of RO membranes by plasma polymerization for low organic fouling[J].Journal of Membrane Science,2011,369(1):420-428.
[51]Fresnais J,Benyahia L,Chapel J P,et al.Polyethylene ultrahydrophobic surface:synthesis and original properties[J].The European Physical Journal-Applied Physics,2004,26(3):209-214.
[52]石建军.纤维素及纤维素-SiO2复合气凝胶的制备、性能和疏水改性[D].海口:海南大学,2013.
[53]Cheng Y,Lu L,Zhang W,et al.Reinforced low density alginate-based aerogels:preparation,hydrophobic modification and characterization[J].Carbohydrate Polymers,2012,88(3):1093-1099.
[54]Zeng T,Li A,Li Z,et al.Mechanical reinforcement of a cellulose aerogel with nanocrystalline cellulose as reinforcer[J].RSC Advances,2017,7(55):34461-34465.
[55]Lin R,Li A,Zheng T,et al.Hydrophobic and flexible cellulose aerogel as an efficient,green and reusable oil sorbent[J].RSCAdvances,2015,5(100):82027-82033.
[56]Wu M H.Simple poly(dimethylsiloxane)surface modification to control cell adhesion[J].Surface and Interface Analysis,2009,41(1):11-16.
[57]Sharma V,Dhayal M,Shivaprasad S M,et al.Surface characterization of plasma-treated and PEG-grafted PDMS for micro fluidic applications[J].Vacuum,2007,81(9):1094-1100.