Silica aerogel has excellent properties such as high porosity,good adsorption capacity,and easy surface modification.It has great application prospects in the fields of wastewater treatment and air purification.In recent years,the urban greenhouse effect has intensified and air quality has declined.There is an urgent need to develop a new generation of highly efficient air purification materials.From the two application backgrounds of greenhouse gas adsorption and gas phase toxic compound adsorption,the adsorption principle and modification process of SiO2 aerogel were summarized,the research results of many scholars in this field were outlined,and finally an outlook on the future research directions of further research were provided.
[1] Liu L,Tian S L.Mass transfer and influence factors for solubilization absorption of toluene with microemulsion[J].Chemical Engineering,2010,38(5):5-8.
[2] Mai G,XiaoX,Yan Bo,et al.Toluene absorption performance of typical water soluble absorbents[J].Research of Environmental Sciences,2015,28(10):1602-1609.
[3] Kistler S S.Coherent expanded-aerogels[J].Journal of ChemicalPhysical,1931,36(1):52-64.
[4] Cui S,Yu S,Lin B,et al.Preparation of amine-modified SiO2 aerogel from rice husk ash for CO2 adsorption[J].Journal of Porous Materials,2017,24(2):455-461.
[5] 李肖华,杨自春,李昆锋,等.以MTES为硅源制备透明可压缩的甲基倍半硅氧烷气凝胶及其表征[J].化工进展,2020,39(3):1115-1121.
[6] Meng S,Zhang J Y,Xu W,et al.Structural control of silica aerogel fibers for methylene blue removal[J].Science China Technological Sciences,2019,62(6):958-964.
[7] Han H,Wei W,Jiang Z,et al.Removal of cationic dyes from aqueous solution by adsorption onto hydrophobic/hydrophilic silica aerogel[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2016,509:539-549.
[8] 李朝宇,张潇,吕佳佳,等.石墨烯/SiO2气凝胶对苯、甲苯水溶液的吸附[J].中国环境科学,2017,37(3):972-979.
[9] Caplow M.Kinetics of carbamate formation and breakdown[J].Journal of the American Chemical Society,1968,90(24):6795-6803.
[10] Donaldson T L,Nguyen Y N.Carbon dioxide reaction kinetics and transport in aqueous amine membranes[J].Industrial & Engineering Chemistry Fundamentals,1980,19(3):260-266.
[11] Ewlad-Ahmed A M,Morris M A,Patwardhan S V,et al.Removal of formaldehyde from air using functionalized silica supports[J].Environmental Science & Technology,2012,46(24):13354-13360.
[12] 缪应菊,李琳,缪应纯,等.高硅粉煤灰基二氧化硅气凝胶的物理表征及其CO2捕集应用[J].中国测试,2020,46(5):51-56,64.
[13] Miao Y,Pudukudy M,Zhi Y,et al.A facile method for in situ fabrication of silica/cellulose aerogels and their application in CO2capture[J].Carbohydrate Polymers,2020,236:116079.
[14] Kong Y,Shen X,Fan M,et al.Dynamic capture of low-concentration CO2 on amine hybrid silsesquioxane aerogel.Chemical Engineering Journal,2016,283:1059-1068.
[15] Chen C,Xu H,Jiang Q,et al.Rational design of silicas with meso-macroporosity as supports for high-performance solid amine CO2 adsorbents.Energy,2021,214:119093.
[16] Santos A,Ajbary M,Toledo-Fernández J A,et al.Reactivity of CO2 traps in aerogel-wollastonite composites[J].Journal of Sol-Gel Science and Technology,2008,48(1):224-230.
[17] Santos A,Ajbary M,Kherbeche A,et al.Fast CO2 sequestration by aerogel composites[J].Journal of Sol-Gel Science and Technology,2008,45(3):291-297.
[18] Santos A,Ajbary M,Morales-Flórez V,et al.Larnite powders and larnite/silica aerogel composites as effective agents for CO2 sequestration by carbonation[J].Journal of Hazardous Materials,2009,168(2-3):1397-1403.
[19] Livage J,Henry M,Sanchez C.Sol-gel chemistry of transition metal oxides[J].Progress in Solid State Chemistry,1988,18(4):259-341.
[20] Kong Y,Zhong Y,Shen X,et al.Effect of silica sources on nanostructures of resorcinol-formaldehyde/silica and carbon/silicon carbide composite aerogels[J].Microporous and Mesoporous Materials,2014,197:77-82.
[21] Vareda J P,Valente A J M,Durães L.Silica aerogels/xerogels modified with nitrogen-containing groups for heavy metal adsorption[J].Molecules,2020,25(12):2788.
[22] Kong Y,Shen X,Fan M,et al.Dynamic capture of low-concentration CO2 on amine hybrid silsesquioxane aerogel[J].Chemical Engineering Journal,2016,283:1059-1068.
[23] Wang Z,Zhou Q,Guo H,et al.Determination of water solubility in supercritical CO2 from 313.15 to 473.15 K and from 10 to 50 MPa by in-situ quantitative Raman spectroscopy[J].Fluid Phase Equilibria,2018,476:170-178.
[24] Wang Z,Dai Z,Wu J,et al.Vacuum-dried robust bridged silsesquioxaneaerogels[J].Advanced Materials,2013,25(32):4494-4497.
[25] Linneen N,Pfeffer R,Lin Y S.CO2 capture using particulate silica aerogel immobilized with tetraethylenepentamine[J].Microporous and Mesoporous Materials,2013,176:123-131.
[26] Zhou G,Wang K,Liu R,et al.Synthesis and CO2 adsorption performance of TEPA-loaded cellulose whisker/silica composite aerogel[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2021,631:127675.
[27] Keshavarz L,Ghaani M R,MacElroy J M D,et al.A comprehensive review on the application of aerogels in CO2-adsorption:materials and characterisation[J].Chemical Engineering Journal,2021,412:128604.
[28] Huang H Y,Yang R T,Chinn D,et al.Amine-grafted MCM-48 and silica xerogel as superior sorbents for acidic gas removal from natural gas[J].Industrial & Engineering Chemistry Research,2003,42(12):2427-2433.
[29] Fatima S S,Borhan A,Ayoub M,et al.Development and progress of functionalized silica-based adsorbents for CO2capture[J].Journal of Molecular Liquids,2021,338:116913.
[30] Jiang X,Ren J,Kong Y,et al.Shape-tailorable amine grafted silica aerogel microsphere for CO2capture[J].Green Chemical Engineering,2020,1(2):140-146.
[31] Fatima S S,Borhan A,Ayoub M,et al.Development and progress of functionalized silica-based adsorbents for CO2 capture.Journal of Molecular Liquids,2021:116913.
[32] Sanz R,Calleji G,Arenciaia A,et al.CO2 capture with pore-expanded MCM-41 silica modified with amino groups by double functionalization.Microporous and Mesoporous Materials,2015,209:165-171.
[33] Ramdin M,de Loos T W,Vlugt T J H.State-of-the-art of CO2 capture with ionic liquids[J].Industrial & Engineering Chemistry Research,2012,51(24):8149-8177.
[34] Nematollahi M H,Carvalho P J.Green solvents for CO2capture[J].Current Opinion in Green and Sustainable Chemistry,2019,18:25-30.
[35] Zhu J,Xin F,Huang J,et al.Adsorption and diffusivity of CO2 in phosphonium ionic liquid modified silica[J].Chemical Engineering Journal,2014,246:79-87.
[36] Hiremath V,Jadhav A H,Lee H,et al.Highly reversible CO2 capture using amino acid functionalized ionic liquids immobilized on mesoporous silica[J].Chemical Engineering Journal,2016,287:602-617.
[37] Torralba-Calleja E,Skinner J,Gutiérrez-Tauste D.CO2 capture in ionic liquids:a review of solubilities and experimental methods[J].Journal of Chemistry,2013,2013:1-16.
[38] Garip M,Gizli N.Ionic liquid containing amine-based silica aerogels for CO2 capture by fixed bed adsorption[J].Journal of Molecular Liquids,2020,310:113227.
[39] 吴鸣,高跃,王旺成,等.石墨烯/SiO2复合气凝胶微球的制备及其吸附性能研究[J].化工新型材料,2019,47(9):155-160,165.
[40] Perdigoto M L N,Martins R C,Rocha N,et al.Application of hydrophobic silica based aerogels and xerogels for removal of toxic organic compounds from aqueous solutions[J].Journal of Colloid and Interface Science,2012,380(1):134-140.
[41] Li J,Li X,Zhang X,et al.Development of graphene aerogels with high strength and ultrahigh adsorption capacity for gas purification[J].Materials & Design,2021,208:109903.
[42] Ma Y,Chen X,Bai J,et al.Highly selective fluorescence chemosensor based on carbon-dot-aerogel for detection of aniline gas[J].Inorganic Chemistry Communications,2019,100:64-69.
[43] 郑秋颖,郭五,林雪,等.负载新型荧光探针的二氧化硅气凝胶在甲醛检测中的应用[J].化工新型材料,2021,49(6):222-225.
[44] 王俊婷,钟志梅.氨基化壳聚糖/二氧化硅气凝胶对甲醛的吸附研究[J].化工管理,2018(16):40-44.
[45] Rong H,Liu Z,Wu Q,et al.Formaldehyde removal by Rayon-based activated carbon fibers modified by P-aminobenzoic acid.Cellulose,2010,17(1):205-214.
基金资助
国家自然科学基金(51802347)