https://oldena.lpnu.ua/handle/ntb/42095
Title: | Modified polyethersulfone membranes with photocatalytic properties |
Other Titles: | Модифіковані поліетерсульфонові мембрани з фотокаталітичними властивостями |
Authors: | Dzhodzhyk, Oleh Kolesnyk, Iryna Konovalova, Victoriia Burban, Anatoliy |
Affiliation: | National University of Kyiv-Mohyla Academy |
Bibliographic description (Ukraine): | Modified polyethersulfone membranes with photocatalytic properties / Oleh Dzhodzhyk, Iryna Kolesnyk, Victoriia Konovalova, Anatoliy Burban // Chemistry & Chemical Technology. — Lviv : Lviv Politechnic Publishing House, 2017. — Vol 11. — No 3. — P. 277–284. |
Bibliographic description (International): | Modified polyethersulfone membranes with photocatalytic properties / Oleh Dzhodzhyk, Iryna Kolesnyk, Victoriia Konovalova, Anatoliy Burban // Chemistry & Chemical Technology. — Lviv : Lviv Politechnic Publishing House, 2017. — Vol 11. — No 3. — P. 277–284. |
Is part of: | Chemistry & Chemical Technology, 3 (11), 2017 |
Issue: | 3 |
Volume: | 11 |
Issue Date: | 20-Jan-2017 |
Publisher: | Lviv Politechnic Publishing House |
Place of the edition/event: | Lviv |
Keywords: | поліетерсульфонова мембрана станум(IV) оксид метод «layer-by-layer» концентрування молока polyethersulfone membrane tin(IV) oxide “layer-by-layer” method milk concentration |
Number of pages: | 8 |
Page range: | 277-284 |
Start page: | 277 |
End page: | 284 |
Abstract: | За допомогою електростатичної взаємодії
поліелектролітів методом «layer-by-layer» одержані фото-
каталітичні мембрани з наночастинками станум(IV) оксиду.
Для іммобілізації нанокаталізатору використовувалися полі-
електролітні комплекси різної природи. Як позитивно заряд-
жений поліелектроліт використовувався поліетиленімін, як
негативно заряджені – натрій карбоксиметилцелюлоза, нат-
рій альгінат, κ- чи ι-карагінан. Наявність SnO2 на поверхні
мембран підтверджена сканувальною електронною мікро-
скопією (СЕМ). Утворення комплексів поліелектролітів під-
тверджено за допомогою дзета-потенціометрії. Фотока-
талітична активність нанокомпозитних мембран оцінена у
процесі нанофільтрації молока. Модифікування поліетер-
сульфонових мембран поліелектролітними шарами і наночас-
тинками SnO2 дало можливість отримати висококонцент-
рований ретентат і досягти стабільної продуктивності
мембран більше 8 годин. The photocatalityc nanocomposite membranes with tin(IV) oxide nanoparticles were obtained by “layerby- layer” self-assembly. Polyelectrolyte complexes with different nature were analyzed as a binder for nanocatalysts. PEI was used as a positively charged polyelectrolyte, and CMC, sodium alginate, κ- or ι- carrageenans were used as negatively charged ones. The presence of SnO2 on the membrane surface was confirmed by a scanning electron microscopy (SEM). Polyelectrolyte complexation was studied by zeta-potential measurement. The photocatalytic activity of the nanocomposite membranes was evaluated in the process of milk nanofiltration. The modification of polyethersulfone membranes with polyelectrolyte layers and SnO2 nanoparticles allowed to produce a highly concentrated retentate and membrane flux remained stable for over 8 h. |
URI: | https://ena.lpnu.ua/handle/ntb/42095 |
Copyright owner: | © Національний університет „Львівська політехніка“, 2017 © Dzhodzhyk O., Kolesnyk I., Konovalova V., Burban A., 2017 |
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Content type: | Article |
Appears in Collections: | Chemistry & Chemical Technology. – 2017. – Vol. 11, No. 3 |
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