超疏水膜的制备及其在膜蒸馏过程中的应用
- 碧血
-
0 次阅读
-
0 次下载
-
2020-03-20 14:09:30
文档简介:
PROGRESSINCHEMISTRY化学进展DOI:10.7536/PC150102http://www.progchem.ac.cnProgressinChemistry,2015,27(8):1033~1041超疏水膜的制备及其在膜蒸馏过程中的应用田苗苗1,2李雪梅2殷勇2何涛2*刘金盾1*(1.郑州大学化工与能源学院郑州450001;2.中国科学院上海高等研究院上海200120)摘要超疏水材料具有超高的憎水性和自清洁特性,因而在解决材料的润湿和污染方面具有广泛的应用前景。膜蒸馏是一种以多孔疏水膜两侧蒸汽压差为推动力的膜分离过程,是脱盐和水回用中的重要技术。然而膜润湿和污染问题是导致膜蒸馏过程出水品质下降和应用过程稳定性差的关键。本文以膜蒸馏过程为背景,系统介绍了蒸馏过程的发展状况和超疏水膜材料的制备方法,以及超疏水膜在膜蒸馏中的应用,探讨了超疏水膜材料在膜蒸馏过程中的优势,同时指出了其不足和可能的解决方法,以期为膜蒸馏材料的发展提供研究方向和思路。关键词膜蒸馏超疏水抗润湿抗污染膜制备中图分类号:O647.11;TQ028.8文献标识码:A文章编号:1005-281X(2015)08-1033-09收稿:2015年1月,收修改稿:2015年4月,网络出版:2015年8月7日*Correspondingauthore-mail:het@sari.ac.cn;liujindun@zzu.edu.cnPreparationofSuperhydrophobicMembranesandTheirApplicationinMembraneDistillationTianMiaomiao1,2LiXuemei2YinYong2HeTao2*LiuJindun1*(1.SchoolofChemicalEngineeringandEnergy,ZhengzhouUniversity,Zhengzhou450001,China;2.ShanghaiAdvancedResearchInstitute,ChineseAcademyofSciences,Shanghai200120,China)AbstractSuperhydrophobicsurfacesarecharacterizedbytheirhighwaterrepellencyandself-cleaningproperties,whichispotentiallyapplicableinareaswhereanti-wettingandanti-foulingpropertiesarehighlydesired.Membranedistillation(MD)isdrivenbythevaporpressuregradientacrossaporoushydrophobicmembrane,andisversatileindesalinationandwaterreclamationprocesses.However,membranewettingandfoulingaretwomajorissuesintheapplicationofMD.Basedonthestate-of-artdevelopmentofMD,thismini-reviewprovidesanoverviewonthepreparationofsuperhydrophobicmembranesandtheirapplicationinMD.Themeritsofapplicationofsuperhydrophobicmembranesareillustrated,inadditiontotheshortcomingsofsuperhydrophobicsurfaces.ThisreviewiscriticalinpointingoutnewresearchdirectionsandschemesforthedevelopmentoftheMDmembrane.Keywordsmembranedistillation;superhydrophobic;anti-wetting;anti-fouling;membranepreparationContents1Introduction2Membranedistillation(MD)2.1MDoperationmodes2.2CharacteristicsofMDprocess2.3MDmembranes3Superhydrophobicmembranes3.1Theoreticalbackgroundofwettability3.2Preparationofsuperhydrophobicmembranes4Applicationofsuperhydropho
评论
发表评论