Page 134 - 《精细化工》2023年第4期

す 40 ࢤす 4 ᱌ ㇫ ㏳ ࡃ ጒ Vol.40, No.4
20 23 Ꭱ 4 ᰵ FINE CHEMICALS Apr. 2023

ߌ㘪ᱽ᫆
PEG/GO/TiO ㏠ㆠฺवᱽ᫆ᩦᕔ PVDF 㛉⮱
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ݣิࣷڣោ↎ᕔ㘪

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ͽ㡉㧶 喑႐ ᬚ 1,2* 喑ᒽ⊤∸ 喑݅≗ক 喑Ვ䓦ܑ 喑⢸ᷓ⥓
喍1. ξࢄጵ㠰๔႓ 㘪⎽̻⣜ධ⻾႓႓䮏喑ξࢄ ᬳᬻ 650500喠2. ξࢄጵ㠰๔႓ ➖⤳̻⩢ၽԎᖜ႓䮏喑
ξࢄ ᬳᬻ 650500喎
ᦅ㺮喟ͧᩦ઱㖇ռ⅌Ά☜喍PVDF喎㛉⮱ោ↎ᕔ㘪喑В㖇Άι䚴 2000 ᣒ᳊⮱ GO/TiO 2 喍PEG/GO/TiO 2 喎㏠ㆠฺ
वᱽ᫆ͧ⌨ߍݯ喑䕇䓴䲋⏣ݯ䄞ᄩ↶⋭Ⱕܳ⻨∂ݣิγ̭㈨݄ PEG/GO/TiO 2 /PVDF ฺव䊲␑㛉ȡ䛴⩕ FTIRȠSEM
হᣒ㼓㻿≸䄂Зᄦڣ㐀Ჱহᒏ䆹䔈㵹γ㶕ᒮ喑䛴⩕䊲␑∂䃱Фڣ㏜Ⅱ䕇䛼হោ↎ᕔ㘪ȡ㐀᳉㶕ᬻ喑ᒀ
PEG/GO/TiO 2 ㏠ㆠฺवᱽ᫆䉕䛼ܳ᪝ͧ 0.60%ᬣ喑ݣิ⮱ PEG/GO/TiO 2 /PVDF ฺव䊲␑㛉喍䃝ͧ 0.60%
PEG/GO/TiO 2 /PVDF喎㶕⣝ܧᰭҠ⮱ϟⅡᕔহោ↎ᕔ㘪喑ڣᣒ㼓㻿℁ PVDF 㛉̸䭺 8.2°喑ᕨႁ䯆⢴෋ߍ 13.40%喑
PEG/GO/TiO 2 ㏠ㆠฺवᱽౕ᫆ PVDF 㛉͚ܳ᪐䒰౴࠭ȡౕ 0.08 MPa ⮱ጒ҉ࢸ߈̸喑0.60% PEG/GO/TiO 2 /PVDF
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⮱㏜Ⅱ䕇䛼倅䓫 282.44 L/(m ·h)喑ᄦ㙽Ḻ䚥⏣⋟⮱䓴␑䕇䛼ͧ 131.96 L/(m ·h)喑Ⅱ߈⌲≄ऻ⮱㏜Ⅱ䕇䛼ͧ
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194.98 L/(m ·h)喑ܳݘͧ PVDF 㛉Ȳ133.80 L/(m ·h)Ƞ90.50 L/(m ·h)Ƞ109.57 L/(m ·h)ȳ⮱ 2.1 ԺȠ1.5 Ժহ 1.8 Ժȡ
఍ₑ喑PEG/GO/TiO 2 ㏠ㆠฺवᱽ᫆҉̭ͧ⻺ᰶ᩵⌨ߍݯ᭫㦄᣽倅γ PVDF 㛉⮱ោ↎ᕔ㘪ȡ
ڠ䩛䃺喟㖇ռ⅌Ά☜喠⅔ࡃⴠ෕☜喠TiO 2 ㏠ㆠㆿၽ喠ᩦᕔ喠䊲␑㛉喠ោ↎ᕔ㘪喠ߌ㘪ᱽ᫆
͚ఫܳㆨत喟TQ051.893 ᪴⡛ᴴ䃳⴮喟A
᪴」㑃त喟1003-5214 (2023) 04-0820-09 ᐭᩫ⻾႓ (䉱⎽᰺ߎ) ᴴ䃳⴮ (OSID)喟
Preparation and antifouling performance of PVDF membranes
modified with PEG/GO/TiO 2 nanocomposites

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YUE Xirong , JI Xu 1,2* , XU Haiyang , LIU Hongzhou , YANG Bianfeng , WANG Mengqi
喍1. School of Energy and Environmental Science, Yunnan Normal University, Kunming 650500, Yunnan, China;
2. School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, Yunnan, China喎
Abstract: In order to improve the antifouling performance of polyvinylidene fluoride (PVDF) membrane, a
series of polyethylene glycol (PEG)/GO/TiO 2/PVDF composite ultrafiltration membranes were prepared by
non-solvent induced phase separation method with PEG 2000 grafted GO/TiO 2 nanocomposites as additives.
The PEG/GO/TiO 2/PVDF composite ultrafiltration membranes obtained were then characterized by FTIR,
SEM and contact angle tester for structure and morphology analyses, and evaluated for pure water flux and
antifouling performance in ultrafiltration. The results showed that, when the mass fraction of PEG/GO/TiO 2
nanocomposites was 0.60%, the PEG/GO/TiO 2 /PVDF composite ultrafiltration membrane prepared (denoted
as 0.60% PEG/GO/TiO 2/PVDF) exhibited the best hydrophilicity and antifouling performance. Compared
with PVDF membrane, the 0.60% PEG/GO/TiO 2/PVDF, with PEG/GO/TiO 2 nanocomposites evenly
distributed in PVDF membrane, displayed a decrease in static contact angle by 8.2°, and increase in total
porosity by 13.40%. Under working pressure of 0.08 MPa, the pure water flux of 0.60% PEG/GO/TiO 2 /PVDF
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membrane reached up to 282.44 L/(m ·h), the filtration flux of humic acid solution was 131.96 L/(m ·h),
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and the pure water flux after hydraulic cleaning remained 194.98 L/(m ·h), which were 2.1-fold, 1.5-fold
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and 1.8-fold those of PVDF membrane [133.80 L/(m ·h)Ƞ90.50 L/(m ·h)Ƞ109.57 L/(m ·h)], respectively.
Therefore, the addition of PEG/GO/TiO 2 nanocomposites as effective additive improved the antifouling
performance of PVDF membrane.

ᩣ⽬ᬒ᱌喟2022-07-28; Ⴧ⩕ᬒ᱌喟2022-11-07; DOI: 10.13550/j.jxhg.20220703
ധ䛾䶦Ⱋ喟ξࢄⰮ݈᫝䃚㏰䶦Ⱋ喍DC2022030喎喠ξࢄⰮ๔႓⩌⻾ⵁ䃚㏰ധ䛾䶦Ⱋ喍KX2021037喎
҉㔲キϸ喟ͽ㡉㧶喍1997ÿ喎喑ຠ喑ⶂธ⩌喑E-mail喟3138873657@qq.comȡ㖁㈨ϧ喟႐ ᬚ喍1976ÿ喎喑⩤喑᪆ᢵ喑E-mail喟jixu@ynnu.edu.cnȡ