Citation: Xia Zhan, Ji-ding Li, Cheng Fan, Xiao-long Han. PERVAPORATION SEPARATION OF ETHANOL/WATER MIXTURES WITH CHLOROSILANE MODIFIED SILICALITE-1/PDMS HYBRID MEMBRANES[J]. Chinese Journal of Polymer Science, ;2010, 28(4): 625-635. doi: 10.1007/s10118-010-9136-4 shu

PERVAPORATION SEPARATION OF ETHANOL/WATER MIXTURES WITH CHLOROSILANE MODIFIED SILICALITE-1/PDMS HYBRID MEMBRANES

Received Date: 16 September 2009
Revised Date: 9 November 2009

Ultra-fine silicalite-1 particles were modified with four kinds of chlorosilanes (dodecyltrichlorosilane, octyltrichlorosilane, hexadecyltrichlorosilane and octadecyltrichlorosilane) and characterized by FI-IR, TGA, contact angle measurements and BET analysis. It was found that the surface hydrophobicity of silicalite-1 particles was improved significantly as the alkyl group was strongly bonded to the particle surface. Modified silicalite-1 particles were incorporated into PDMS (poly(dimethylsiloxanediol)) membranes, which were applied for the pervaporation separation of ethanol/water mixtures. The effect of surface properties, zeolite loading and operation conditions on pervaporation performance of the membranes was investigated. The separation factor of PDMS membranes filled with modified silicalite-1 increased considerably compared with that filled with unmodified ones, and the total flux decreased with increasing zeolite loading. The solution and diffusion selectivity of hybrid membranes were also measured to explain the pervaporation properties of silicalite-1 filled PDMS membranes. It was found that modification of silicalite-1 with dodecyltrichlorosilane effectively improved the solution and diffusion selectivity of silicalite-1 filled PDMS membranes with high zeolite loading. This may be attributed to the high surface hydrophobicity of modified silicalite-1 and its good integration with PDMS membranes. Both the high separation factor and solution selectivity indicated that modification of silicalite-1 with chlorosilanes was an effective method to improve the selectivity of silicalite-1/PDMS hybrid membranes for ethanol.
1. [1]
  Yiwen Yuan , Lingyao Wang , Yuanbin Zhang . A hybrid azolate framework for record propylene/propane sieving separation. Chinese Journal of Structural Chemistry, 2025, 44(5): 100510-100510. doi: 10.1016/j.cjsc.2024.100510
2. [2]
  Wenhao Wang , Guangpu Zhang , Qiufeng Wang , Fancang Meng , Hongbin Jia , Wei Jiang , Qingmin Ji . Hybrid nanoarchitectonics of TiO₂/aramid nanofiber membranes with softness and durability for photocatalytic dye degradation. Chinese Chemical Letters, 2024, 35(7): 109193-. doi: 10.1016/j.cclet.2023.109193
3. [3]
  Jinjie Lu , Qikai Liu , Yuting Zhang , Yi Zhou , Yanbo Zhou . Antibacterial performance of cationic quaternary phosphonium-modified chitosan polymer in water. Chinese Chemical Letters, 2024, 35(9): 109406-. doi: 10.1016/j.cclet.2023.109406
4. [4]
  Yan Zou , Yuting Xue , Chenxue Du , Wenyang Fu , Bin Xia , Yu He , Liang Ao , Xiaoshu Lv , Guangming Jiang . Anhydrous sodium sulfate microparticles for efficient water separation from surfactant-stabilized water-in-oil emulsions. Chinese Chemical Letters, 2025, 36(11): 110814-. doi: 10.1016/j.cclet.2025.110814
5. [5]
  Lixian Fu , Yiyun Tan , Yue Ding , Weixia Qing , Yong Wang . Water–soluble and polarity–sensitive near–infrared fluorescent probe for long–time specific cancer cell membranes imaging and C. Elegans label. Chinese Chemical Letters, 2024, 35(4): 108886-. doi: 10.1016/j.cclet.2023.108886
6. [6]
  Yan Zou , Yin-Shuang Hu , Deng-Hui Tian , Hong Wu , Xiaoshu Lv , Guangming Jiang , Yu-Xi Huang . Tuning the membrane rejection behavior by surface wettability engineering for an effective water-in-oil emulsion separation. Chinese Chemical Letters, 2024, 35(6): 109090-. doi: 10.1016/j.cclet.2023.109090
7. [7]
  Changle Liu , Mingyuzhi Sun , Haoran Zhang , Xiqian Cao , Yuqing Li , Yingtang Zhou . All in one doubly pillared MXene membrane for excellent oil/water separation, pollutant removal, and anti-fouling performance. Chinese Journal of Structural Chemistry, 2024, 43(8): 100355-100355. doi: 10.1016/j.cjsc.2024.100355
8. [8]
  Ying-Mei Zhong , Zi-Jun Xia , Yu-Hang Hu , Li-Peng Zhou , Li-Xuan Cai , Qing-Fu Sun . Effective separation of phenanthrene from isomeric anthracene using a water-soluble macrocycle-based cage. Chinese Chemical Letters, 2025, 36(4): 110164-. doi: 10.1016/j.cclet.2024.110164
9. [9]
  Chunhua Ma , Mengjiao Liu , Siyu Ouyang , Zhenwei Cui , Jingjing Bi , Yuqin Jiang , Zhiguo Zhang . Metal-free construction of diverse 1,2,4-triazolo[1,5-a]pyridines on water. Chinese Chemical Letters, 2025, 36(1): 109755-. doi: 10.1016/j.cclet.2024.109755
10. [10]
  Shiyan Ai , Yaning Xu , Hui Zhou , Ziwei Cui , Tiantian Wu , Dan Tian . Superelastic and ultralight covalent organic framework composite aerogels modified with different functional groups for ultrafast adsorbing organic pollutants in water. Chinese Chemical Letters, 2025, 36(10): 110761-. doi: 10.1016/j.cclet.2024.110761
11. [11]
  Yang Yang , Yan-Xin Chen , Ao-Sheng She , Hao-Yan Shi , Wen Chen , Wei Wang , Hai-Long Wang , Ke-Xian Li , Yi-Hu Pu , Wei-Hua Yang , Xiu-Mei Lin , Can-Zhong Lu . Nickel phosphide modified TiO2 nanotube arrays for efficient PEC water splitting H2 generation. Chinese Journal of Structural Chemistry, 2025, 44(7): 100623-100623. doi: 10.1016/j.cjsc.2025.100623
12. [12]
  Huan Hu , Ying Zhang , Shi-Shuang Huang , Zhi-Gang Li , Yungui Liu , Rui Feng , Wei Li . Temperature- and pressure-responsive photoluminescence in a 1D hybrid lead halide. Chinese Journal of Structural Chemistry, 2024, 43(10): 100395-100395. doi: 10.1016/j.cjsc.2024.100395
13. [13]
  Yunyan Li , Zimin Cai , Zhicheng Wang , Sifeng Zhu , Wendian Liu , Cheng Wang . Construction of biomimetic hybrid nanovesicles based on M1 macrophage-derived exosomes for therapy of cancer. Chinese Chemical Letters, 2025, 36(4): 109942-. doi: 10.1016/j.cclet.2024.109942
14. [14]
  Haitao Yin , Liang Meng , Li Li , Jiamu Xiao , Longrui Liang , Nannan Huang , Yansong Shi , Angang Zhao , Jingwen Hou . Polydopamine-modified biochar supported polylactic acid and zero-valent iron affects the functional microbial community structure for 1,1,1-trichloroethane removal in simulated groundwater. Chinese Chemical Letters, 2025, 36(1): 110313-. doi: 10.1016/j.cclet.2024.110313
15. [15]
  Yan Fan , Jiao Tan , Cuijuan Zou , Xuliang Hu , Xing Feng , Xin-Long Ni . Unprecedented stepwise electron transfer and photocatalysis in supramolecular assembly derived hybrid single-layer two-dimensional nanosheets in water. Chinese Chemical Letters, 2025, 36(4): 110101-. doi: 10.1016/j.cclet.2024.110101
16. [16]
  Jiachen Gao , Hailong Zhang , Xue Zhao , Yafu Wang , Houen Zhu , Xiangyi Kong , Yan Liang , Ting Ou , Rui Ren , Yulan Gu , Yanyong Su , Jiangwei Zhang . Recent advances in anion exchange membranes. Chinese Journal of Structural Chemistry, 2025, 44(5): 100563-100563. doi: 10.1016/j.cjsc.2025.100563
17. [17]
  Qiang Feng , Jindong Hao , Ya Hu , Rong Fu , Wei Wei , Dong Yi . Photocatalytic multi-component synthesis of ester-containing quinoxalin-2(1H)-ones using water as the hydrogen donor. Chinese Chemical Letters, 2025, 36(6): 110582-. doi: 10.1016/j.cclet.2024.110582
18. [18]
  Gen Zhang , Ying Gu , Lin Li , Fuli Ma , Dan Yue , Xiaoguang Zhou , Chungui Tian . Anion-modulated HER and OER activity of 1D Co-Mo based interstitial compound heterojunctions for the effective overall water splitting. Chinese Chemical Letters, 2025, 36(7): 110110-. doi: 10.1016/j.cclet.2024.110110
19. [19]
  Guangyao Wang , Zhitong Xu , Ye Qi , Yueguang Fang , Guiling Ning , Junwei Ye . Electrospun nanofibrous membranes with antimicrobial activity for air filtration. Chinese Chemical Letters, 2024, 35(10): 109503-. doi: 10.1016/j.cclet.2024.109503
20. [20]
  Qijun Tang , Wenguang Tu , Zhigang Zou . Solar-driven methane-to-ethanol conversion by “intramolecular junction” with both high activity and selectivity. Chinese Journal of Structural Chemistry, 2025, 44(6): 100597-100597. doi: 10.1016/j.cjsc.2025.100597

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1215)
HTML views(37)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return