1.河北工业大学化工学院,天津 300130
2.中国科学院生态环境研究中心,中国科学院饮用水科学与技术重点实验室, 北京 100085
3.中国科学院生态环境研究中心,环境水质学国家重点实验室,北京 100085
4.南昌大学环境学院,江西 南昌 330000
王凯(1993—),男,硕士研究生
王德武(1980—),男,博士,教授,wangdewu@hebut.edu.cn
侯得印(1980—),男,博士,副研究员,dyhou@rcees.ac.cn
收稿:2018-07-23,
修回:2018-09-30,
纸质出版:2019-01-05
移动端阅览
王凯, 王德武, 侯得印, 袁子怡, 王军. 自组装法制备PVDF-SiO2/PVSQ超疏水复合膜及膜蒸馏抗污染性能[J]. 化工学报, 2019, 70(1): 298-308 DOI: 10.11949/j.issn.0438-1157.20180845.
WANG Kai, WANG Dewu, HOU Deyin, YUAN Ziyi, WANG Jun. Fabrication of PVDF-SiO2/PVSQ superhydrophobic compositemembrane via self-assembly with anti-fouling property for membrane distillation[J]. CIESC Journal, 2019, 70(1): 298-308 DOI: 10.11949/j.issn.0438-1157.20180845.
王凯, 王德武, 侯得印, 袁子怡, 王军. 自组装法制备PVDF-SiO2/PVSQ超疏水复合膜及膜蒸馏抗污染性能[J]. 化工学报, 2019, 70(1): 298-308 DOI: 10.11949/j.issn.0438-1157.20180845. DOI:
WANG Kai, WANG Dewu, HOU Deyin, YUAN Ziyi, WANG Jun. Fabrication of PVDF-SiO2/PVSQ superhydrophobic compositemembrane via self-assembly with anti-fouling property for membrane distillation[J]. CIESC Journal, 2019, 70(1): 298-308 DOI: 10.11949/j.issn.0438-1157.20180845. DOI:
采用乙烯基三甲氧基硅烷(VTMOS)对SiO
2
疏水改性,通过自组装法,将改性SiO
2
接枝在商业PVDF(聚偏氟乙烯)膜表面,使其表面达到超疏水。利用场发射电子显微镜、红外光谱仪、接触角测量仪及毛细流孔径分析仪等仪器对改性前后膜的表面形貌、化学组成、接触角及孔径变化等性能参数进行表征。结果表明,VTMOS不仅对SiO
2
疏水改性,还通过自身的水解缩聚反应,生成了规整圆球状的聚乙烯基倍半硅氧烷(PVSQ)微粒,纳米级SiO
2
分布于微米级PVSQ表面,在改性膜表面构造了多层次微/纳米粗糙表面,在低表面能疏水基团乙烯基和甲氧基的共同作用下,成功实现了超疏水改性,改性膜水接触角达到159.5°,滚动角降至8.1°。以NaCl、HA和CaCl
2
混合溶液为进料液,对商业PVDF膜和改性膜进行了长期直接接触式膜蒸馏(DCMD)实验,探究其抗污染性能。结果表明,改性膜适用于长期DCMD实验,并表现出比商业PVDF膜更稳定的通量,截盐率始终大于99.99%,具有良好的稳定性和抗污染性能。
The SiO
2
was hydrophobically modified by vinyltrimethoxysilane (VTMOS)
and the modified SiO
2
was grafted onto the surface of commercial PVDF (polyvinylidene fluoride) membrane by self-assembly method to make the surface superhydrophobic. The VTMOS not only modified the SiO
2
particles changing from hydrophilic into hydrophobicity
but also produced highly monodisperse spherical polyvinylsilsesquioxane (PVSQ) particles by self-hydrolysis and condensation reaction. The achievement of the superhydrophobic membrane surface was attributable to the hierarchical micro/nano rough structure constructed by the random distribution of SiO
2
particles and spherical PVSQ particles
which together with the hydrophobic groups like vinyl groups and methoxyl groups which had low surface tension distributed on the coating surface. The results showed that the maximum water of contact angle modified membrane surface was up to 159.5°
and the sliding angle could reach 8.1°. The anti-fouling properties of the commercial and modified membrane were investigated by direct contact membrane distillation (DCMD) experiments with feed solution containing NaCl
HA and CaCl
2
. The results indicated that the modified membrane with superhydrophobic surface was suitable.
Alkhudhiri A , Darwish N , Hilal N . Membrane distillation: a comprehensive review [J]. Desalination , 2012 , 287 ( 8 ): 2 - 18 .
Zhang W , Li Y , Liu J , et al . Fabrication of hierarchical poly(vinylidene fluoride) micro/nano-composite membrane with anti-fouling property for membrane distillation [J]. Journal of Membrane Science , 2017 , 535 : 258 - 267 .
Ren L F , Xia F , Chen V , et al . TiO 2 -FTCS modified superhydrophobic PVDF electrospun nanofibrous membrane for desalination by direct contact membrane distillation [J]. Desalination , 2017 , 423 : 1 - 11 .
Lin S , Nejati S , Boo C , et al . Omniphobic membrane for robust membrane distillation [J]. Environmentalence & Technology Letters , 2014 , 1 ( 11 ): 443 - 447 .
GrażYna L , Wojciech B , BartłOmiej M , et al . Application of membrane distillation for ethanol recovery during fuel ethanol production [J]. Journal of Membrane Science , 2011 , 375 ( 1/2 ): 212 - 219 .
Khalifa A , Ahmad H , Antar M , et al . Experimental and theoretical investigations on water desalination using direct contact membrane distillation [J]. Desalination , 2017 , 404 : 22 - 34 .
Gryta M , Tomaszewska M , Grzechulska J , et al . Membrane distillation of NaCl solution containing natural organic matter [J]. Journal of Membrane Science , 2001 , 181 ( 2 ): 279 - 287 .
Ge Q , Peng W , Wan C , et al . Polyelectrolyte-promoted forward osmosis-membrane distillation (FO-MD) hybrid process for dye wastewater treatment .[J]. Environmental Science & Technology , 2012 , 46 ( 11 ): 6236 .
Wang Z , Lin S . Membrane fouling and wetting in membrane distillation and their mitigation by novel membranes with special wettability [J]. Water Research , 2017 , 112 : 38 - 47 .
Eykens L , Sitter K D , Dotremont C , et al . Wetting resistance of commercial membrane distillation membranes in waste streams containing surfactants and oil [J]. Applied Sciences , 2017 , 7 ( 2 ): 118 .
Khayet M , Matsuura T . Preparation and characterization of polyvinylidene fluoride membranes for membrane distillation [J]. Industrial & Engineering Chemistry Research , 2001 , 40 ( 24 ): 5710 - 5718 .
Gryta M . Long-term performance of membrane distillation process [J]. Journal of Membrane Science , 2005 , 265 ( 1 ): 153 - 159 .
Razmjou A , Arifin E , Dong G , et al . Superhydrophobic modification of TiO 2 , nanocomposite PVDF membranes for applications in membrane distillation [J]. Journal of Membrane Science , 2012, 415 / 416 ( 10 ): 850 - 863 .
FüRstner R , Barthlott W , Neinhuis C , et al . Wetting and self-cleaning properties of artificial superhydrophobic surfaces [J]. Langmuir the ACS Journal of Surfaces & Colloids , 2005 , 21 ( 3 ): 956 - 961 .
Zhang J , Pu G , Severtson S J . Fabrication of zinc oxide/polydimethylsiloxane composite surfaces demonstrating oil-fouling-resistant superhydrophobicity [J]. ACS Applied Materials & Interfaces , 2014 , 2 ( 10 ): 2880 - 2883 .
Tijing L D , Yun C W , Choi J S , et al . Fouling and its control in membrane distillation—a review [J]. Journal of Membrane Science , 2015 , 475 : 215 - 244 .
Wolf P H , Siverns S , Monti S . UF membranes for RO desalination pretreatment [J]. Desalination , 2005 , 182 ( 1 ): 293 - 300 .
Bhushan B , Her E K . Fabrication of superhydrophobic surfaces with high and low adhesion inspired from rose petal [J]. Langmuir the ACS Journal of Surfaces & Colloids , 2010 , 26 ( 11 ): 8207 - 17 .
Wang H , Fang J , Cheng T , et al . One-step coating of fluoro-containing silica nanoparticles for universal generation of surface superhydrophobicity [J]. Chemical Communications , 2008 , 7 ( 7 ): 877 .
Mchale G , Shirtcliffe N J , Newton M I . Super-hydrophobic and super-wetting surfaces: analytical potential [J]. Analyst , 2004 , 129 ( 4 ): 284 - 287 .
Kim H , Noh K , Choi C , et al . Extreme superomniphobicity of multiwalled 8 nm TiO 2 nanotubes [J]. Langmuir , 2011 , 27 ( 16 ): 10191 - 10196 .
Yang H , Pi P , Cai Z Q , et al . Facile preparation of super-hydrophobic and super-oleophilic silica film on stainless steel mesh via sol–gel process [J]. Applied Surface Science , 2010 , 256 ( 13 ): 4095 - 4102 .
Latthe S S , Imai H , Ganesan V , et al . Porous superhydrophobic silica films by sol–gel process [J]. Microporous & Mesoporous Materials , 2010 , 130 ( 1 ): 115 - 121 .
Peng P , Ke Q , Zhou G , et al . Fabrication of microcavity-array superhydrophobic surfaces using an improved template method [J]. J. Colloid Interface Sci ., 2013 , 395 ( 1 ): 326 - 328 .
Sun M , Luo C , Xu L , et al . Artificial lotus leaf by nanocasting [J]. Langmuir the ACS Journal of Surfaces & Colloids , 2005 , 21 ( 19 ): 8978 .
Gadelhak M , Ochanda F O , Samaha M A , et al . Fabrication of superhydrophobic fiber coatings by DC-biased AC-electrospinning [J]. Journal of Applied Polymer Science , 2011 , 123 ( 2 ): 1112 - 1119 .
Jiang L , Zhao Y , Zhai J . A lotus-leaf-like superhydrophobic surface: a porous microsphere/nanofiber composite film prepared by electrohydrodynamics [J]. Angewandte Chemie , 2004 , 43 ( 33 ): 4338 .
Barshilia H C , Ananth A , Gupta N , et al . Superhydrophobic nanostructured Kapton surfaces fabricated through Ar+O 2 plasma treatment: effects of different environments on wetting behaviour [J]. Applied Surface Science , 2013 , 268 ( 268 ): 464 - 471 .
Fresnais J , Chapel J P , Poncin-epaillard F . Synthesis of transparent superhydrophobic polyethylene surfaces [J]. Surface & Coatings Technology , 2006 , 200 ( 18 ): 5296 - 5305 .
Zhang Z , Yang W , Gu Z , et al . PVDF films with superhydrophobic surface fabricated by plasma-enhanced chemical vapor deposition [J]. Advanced Materials Research , 2009 , 79 / 80 / 81 / 82 : 1451 - 1454 .
Huang L , Lau S P , Yang H Y , et al . Stable superhydrophobic surface via carbon nanotubes coated with a ZnO thin film [J]. Journal of Physical Chemistry B , 2005 , 109 ( 16 ): 7746 - 7753 .
Zhang H , Liu Y , Yao D , et al . ChemInform abstract: hybridization of inorganic nanoparticles and polymers to create regular and reversible self-assembly architectures [J]. Chemical Society Reviews , 2012 , 43 ( 48 ): 6066 - 88 .
Thorkelsson K , Bai P , Xu T . Self-assembly and applications of anisotropic nanomaterials: a review [J]. Nano Today , 2015 , 10 ( 1 ): 48 - 66 .
杨辉 , 高红芳 . 二氧化硅/聚乙烯基倍半硅氧烷超疏水涂层的制备与表征 [J]. 高分子材料科学与工程 , 2016 , 32 ( 11 ): 130 - 134 .
Yang H , Gao H F . Preparation and characterization of superhydrophobic coatings with silica/polyvinylsilsesquioxane [J]. Polymer Materials Science & Engineering , 2016 , 32 ( 11 ): 130 - 134 .
Gu M , Zhang J , Wang X , et al . Formation of poly(vinylidene fluoride)(PVDF) membranes via thermally induced phase separation [J]. Desalination , 2006 , 192 ( 1 ): 160 - 167 .
Song Z , Xing M , Zhang J , et al . Determination of phase diagram of a ternary PVDF/γ-BL/DOP system in TIPS process and its application in preparing hollow fiber membranes for membrane distillation [J]. Separation & Purification Technology , 2012 , 90 ( 90 ): 221 - 230 .
杨辉 , 陈飞 . 乙烯基三甲氧基硅烷对二氧化硅的超疏水改性研究 [J]. 人工晶体学报 , 2015 , 44 ( 09 ): 2597 - 2605 .
Yang H , Chen F . Superhydrophobic modification of silica with VTMO [J]. Journal of Synthetic Crystals , 2015 , 44 ( 09 ): 2597 - 2605 .
Li H , Yu S . A robust superhydrophobic surface and origins of its self-cleaning properties [J]. Applied Surface Science , 2017 , 420 : 336 - 345 .
Srisurichan S , Jiraratananon R , Fane A G . Humic acid fouling in the membrane distillation process [J]. Desalination , 2005 , 174 ( 1 ): 63 - 72 .
0
浏览量
2
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010102001995号