Page 138 - 《精细化工》2023年第4期

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䓴⢴෋ᑧ喑㶕ᬻౕ PVDF ധҀ͚⌨ߍ PEG/GO/TiO 2 ㏠ 䄡ᬻ GO ̺Ⴙڕ᭜⤳ᘠ⟣ᔮ⮱ࢂ❴ᅯ㐀Ჱȡ♣㔹喑
ㆠฺवᱽ᫆जВӰ䔈 PVDF ᒏ᜽ Į ⰥᎣ᣽倅ϟⅡᕔȡ ౕ GO ᒞ׼͚䔅㻯ᄌݝ㹣⯞ᅯ喑䔆⻺❴ᅯ̷⮱㹣⯞
⩞᪝ᢛजⴒ喑㏼ PEG/GO/TiO 2 ㏠ㆠฺवᱽ᫆ᩦ 㘪์䭺ѻ㶕䲏㜗⩞㘪ȡϻఫ 2bȠc ज㻮喑ౕ GO/TiO 2
ᕔऻ⮱ PVDF ౴ᑂڒγÿOHȠCÿOHȠCÿOÿC ㏠ㆠฺवᱽ᫆⮱ GO 㪱❴㶙Ꮒ̷㻯ᄌݝ๔䛼 TiO 2 ㏠
ㆠㆿၽ↶⋭喑㶕ᬻ TiO 2 ㏠ㆠㆿၽ᜽ߌ䉌䒪λ GO 㶕
হ C==O ぶϟⅡᕔक़⅔Ⴥ㘪ఏ喑䃮჋γ PEG/GO/TiO 2
ᄦ PVDF ⮱᜽ߌᩦᕔ喑ѳ➦ᒮም䔼䓴⢴ࢡ̺हȡ⩞ 䲏ȡ㏼䓴ᝃ᱗㏼䓴 PEG ԛ亝⮱ GO 䘪᭜Ꭰ᪡⮱❴ᅯ
λ PEG/GO/TiO 2 䉕䛼ܳ᪝᭜ PVDF ᩦᕔ⮱ੜ̭अ䛼喑 㐀Ჱȡౕ GO/TiO 2 ㏠ㆠฺवᱽ᫆⮱ SEM ఫ喍ఫ 2b喎
͚喑GO 㶕䲏ज㻯ᄌݝ TiO 2 ㏠ㆠㆿၽ㖇䯳Ҁȡϻఫ
఍ₑ喑PVDF ͚ᷭ≸ݝ⮱➦ᒮም䔼䓴⢴̻ PEG/GO/TiO 2
䉕䛼ܳ᪝ᰶڠ喑ѳᎣ䲋᭜キࢂ⮱ₐⰥڠᝃ䉌Ⱕڠڠ 2c ज㻮喑PEG ԛ亝ᩦ઱γ GO 㶕䲏̷ TiO 2 ㏠ㆠㆿၽ
㈨ȡڣ࣌఍᭜喑ᒀ⌨ߍ䓴䛼⮱ PEG/GO/TiO 2 ᬣ喑఍ ⮱ܳጰ喑PEG/GO/TiO 2 ㏠ㆠฺवᱽ᫆ఏ㖇⣝䆎ۼᑞ喑
ࣾ⩌ఏ㖇⣝䆎㔹ᄩ㜡ϟⅡധఏᯡ䱟䓴ᄾ喑㔹⌨ߍᄾ 䒛᐀ᰡܳᬻ喑ܳ᪐ᕔᰡສ喑䔈̭ₒ䃮჋喑䕇䓴̻ÿ
䛼 PEG/GO/TiO 2 ᬣᄳ㜡 Ҭᩦᕔ᩵᳉̺ᬻ᭫ȡᒀ OH ᝃÿCOOH ⮱ࡃ႓䩛व㔹ᣒ᳊ౕ GO/TiO 2 ㏠ㆠ
ฺवᱽ᫆㶕䲏̷⮱ PEG ᒏ᜽γᄦ TiO 2 ㏠ㆠㆿၽ⮱
PEG/GO/TiO 2 䉕䛼ܳ᪝ͧ 0.60%ᬣ喑0.60% PEG/GO/
Ԋ៑喑ᰶ᩵ౝ䭟₏γㆿၽ䬡⮱ఏ㖇ȡϻఫ 2d~l ज㻮喑
TiO 2/PVDF 㶕⣝ܧᰭҠ⮱➦ᒮም䔼䓴⢴喑఍ₑ喑䄒ฺ
PVDF 㛉হ̺हฺव䊲␑㛉౴ॵ⣝ܧڥಸ⮱̺ᄦ⼝
व䊲␑㛉ᄳڤᰶᰭҠ⮱ϟⅡ᩵᳉হោ↎ᕔ㘪ȡ
㐀Ჱ喑⩞䶣䘕㶕ᅯȠϻ㶕䲏ᐣѥ⮱Ą᝸ᠴ⟣ąႁ䯆
হ㜡ჳ⮱Ą⊤㐢⟣ąധᏂ㏱᜽ȡ䔆⻺̺ᄦ⼝㐀Ჱज
㘪᭜⩞⊥ڒⅡ⊡͚⮱䨥㛉⋟ࣾ⩌⮱㖇व➖⊀ᏓᷜᏓ
᝭㜡 [20] ȡPVDF 㛉ڤᰶ㜡ჳ⮱㶕䲏Ƞ᱗ࣾ㗟⮱ᠴ⟣
㐀Ჱহڥಸ⮱⊤㐢⟣ᩜᦾᅯ喑࠲᠙⩞㖇व➖෮࠲డ
⮱⠙⿸ႁȡϻఫ 2e~l ज㻮喑̻ PVDF 㛉Ⱕ℁喑⌨ߍ
ᬍᱧ㏠ㆠᱽ᫆হᰶᱧ倅ܳၽ㖇व➖⮱ฺव䊲␑㛉⮱
ᠴ⟣ႁ㐀Ჱᓄݝ̭Ⴧ⼸Ꮣ⮱ࣾᆂ喑⊤㐢⟣ႁ㐀Ჱ⪒
ᓛۼᄾ喑ڣ࣌఍᭜ᬍᱧ㏠ㆠᱽ᫆হᰶᱧ倅ܳၽ㖇व
➖⮱ϟⅡᕔ䄞ᄩⅡܳၽ䔈ڒ㛉ധҀ͚喑ߍᔘγ⋟-⋟
Ⱕܳ⻨⮱䕌Ꮣ喑ᰶݖλᒏ᜽ᠴ⟣ႁ [40] ȡౕఫ 2e ͚喑
⌨ߍγ TiO 2 ㏠ㆠㆿၽ⮱ฺव䊲␑㛉ᠴ⟣ႁ㐀Ჱᓄݝ
ᩦ઱喑ѳ⊤㐢⟣ധᏂܦ䮤̺Ꭰ᪡́㪱喑䄡ᬻ TiO 2 ㏠
ㆠㆿၽ⮱ߍڒᩦ઱γ PVDF 㛉⮱ϟⅡᕔ喑ѳ㻯ᄌݝ
㖇व➖෮̷⮱▝⮪㞟ㆿၽ⟣➖䉕䒰็喑䔆᭜⩞λ
TiO 2 ㏠ㆠㆿၽౕ䨥㛉⋟͚ᒏ᜽γ㖇䯳Ҁ喑㖇䯳Ҁᄳ
䭺ѻฺव䊲␑㛉⮱ϟⅡᕔ㘪喑䄒㐀᳉ฺ̻व䊲␑㛉
⮱ FTIR 㐀᳉̭㜡喠ౕఫ 2f ͚喑⌨ߍγ GO ⮱ฺव
䊲␑㛉ᠴ⟣ႁ㐀Ჱ෋็́⊤㐢⟣ധᏂअ㪱喑㶕ᬻ GO
ᩦᕔ PVDF ज෋ᑧฺव䊲␑㛉⮱ϟⅡᕔ喑ѳ㖇व➖

A—PVDF 喠 B—0.24% TiO 2/PVDF 喠 C—0.24% GO/PVDF 喠 ෮̷⮱⠙⿸ᄼႁჳ䯳́ႁᒱ䒰๔喑ڣ࣌఍ౕ̻㖇व
D—0.24% GO/TiO 2/PVDF 喠 E—0.12% PEG/GO/TiO 2/PVDF 喠 ➖͚఍ GO 䬡ႅౕ⮱㠰ᓤࡻ߈㔹ᄩ㜡ܳ᪐ᕔጛᰶ
F—0.24% PEG/ GO/TiO 2/PVDF喠G—0.60% PEG/GO/TiO 2/PVDF喠 ڠ喠ౕఫ 2g ͚喑⌨ߍγ GO/TiO 2 ㏠ㆠฺवᱽ᫆⮱ฺ
H—0.89% PEG/ GO/TiO 2/PVDF喠I—1.19% PEG/GO/TiO 2/PVDF
ఫ 1 GOȠGO/TiO 2 ȠPEG/GO/TiO 2 ㏠ㆠฺवᱽ᫆喍a喎 व䊲␑㛉ᠴ⟣ႁ㐀Ჱᬻ᭫喑ѳ⊤㐢⟣ധᏂ⪼Ძ́䒰
Вࣷ PVDF 㛉Ƞ̺हฺव䊲␑㛉喍b喎⮱ FTIR 䅞ఫ ࣇ喑㶕ᬻ GO/TiO 2 ㏠ㆠฺवᱽ᫆⮱ߍڒҬ PVDF 㛉
Fig. 1 FTIR spectra of GO, GO/TiO 2 , PEG/GO/TiO 2 ⮱ϟⅡᕔᓄݝᩦ઱ȡₑใ喑㖇व➖෮̷⮱⠙⿸ᄼႁ
nanocomposites (a) as well as PVDF membrane and কడϺ䭱Ɑ䒰็▝⮪㞟ㆿၽ⟣➖䉕喑ڣ࣌఍̻ࢂ⠙
different composite ultrafiltration membranes (b)
⌨ߍ TiO 2 ᄩ㜡⮱㐀᳉Ⱕहȡϻఫ 2h~l ज㻮喑
2.1.2 SEM ܳᲽ PEG/GO/TiO 2 /PVDF ⮱ᠴ⟣ႁ㐀Ჱ䊷ࣾᬻ᭫喑हᬣ
ఫ 2 ͧ GOȠGO/TiO 2 ȠPEG/GO/TiO 2 ㏠ㆠฺव ᠴ⟣ႁ㐀Ჱअᓄᰡߍ㉔۾Ƞ㜡ჳ喑࣌఍ౕλ䨥㛉⋟
ᱽ᫆ȠPVDF 㛉Ƞ̺हฺव䊲␑㛉⮱ SEM ᝗䲏ఫȡ ͚ߍڒ PEG/GO/TiO 2 ㏠ㆠฺवᱽ᫆喑Ҭᬍᱧㆿၽ̻
ϻఫ 2a ज㻮喑GO ⮱ᒏ䆹ॵ❴ᅯ⟣喑❴ᅯऱ䘕ܳࡧ PVDF 䕇䓴⅏䩛ぶჅ㘪ఏࣾ⩌䩛व [41] 喑ฺव䊲␑㛉⮱
ഌॵᬻᯄ̺ह⮱ᒞ׼喑఍ₑ̺हࡧഌ䔼ٶᕔ̺ह喑 ϑ㖁⼸Ꮣ᣽倅喑䔈㔹Ҭڣႁ㐀Ჱᰡߍ㜡ჳ喑ᄦ᣽倅