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TiO2pes mixed matrix membrane fabricated using different method a comparative study

TiO2pes mixed matrix membrane fabricated using different method a comparative study / Nur Amelia Norzli
Kaedah untuk membina ultrafiltrasi hibrid poliester (PES) penyediaan membran dengan ciri anti pencemaran yang mampan diperkenalkan. Perhimpunan sendiri komponen nanopartikel TiO2 di sekeliling pori-pori membran PES adalah strategi untuk kaedah ini dan dicapai melalui proses pemisahan fasa induksi yang tidak terlarut (NIPS) semasa pembentukan membran PES UF. Sepanjang proses menghasilkan membran PES, prekursor (titanium butoxide (TBT)) daripada nanopartikel TiO2 dan copolymer tiang-tiang (Pluronic F127) telah ditambah. Semasa proses NIPS, perhimpunan sendiri nanopartikel TiO2 di sekitar liang membran dan pembentukan membran polimer PES berlaku dengan mengawal hidrolisis dan pemeluwapan TBT. Segmen hidrofilik dan hidrofobik di F127 mempunyai pertalian yang berbeza terhadap nanopartikel TiO2 dan matriks PES masing-masing dan memainkan peranan penting. Membran hibrida PES yang dihasilkan mempunyai struktur dengan prestasi yang baik apabila lapisan sokongan dengan struktur liang jari yang lebih besar seperti dianalisis dalam imej SEM. Kebolehtelapan air membran hibrida yang dihasilkan 3 kali lebih tinggi daripada membran matriks bercampur (MMM) dalam kaedah pengadunan fizikal. Analisis anti pencemaran dengan menggunakan asid humat sebagai model foulants menunjukkan sifat anti pencemaran membran hibrid boleh dipertingkatkan. _______________________________________________________________________________________________________ A method for the preparation of polyesthersulfone (PES) hybrid ultrafiltration (UF) membrane with sustainable antifouling property is introduced. The self-assemble of TiO2 nanoparticles around the pores of PES membrane is the strategy for this method and was achieved via non-solvent induced phase separation (NIPS) process during the formation of PES UF membrane. Throughout casting PES membrane, the precursor (titanium butoxide (TBT)) of TiO2 nanoparticles and triblock copolymer (Pluronic F127) were added. During NIPS process, self-assembly of TiO2 nanoparticles around the membrane pores and formation of PES polymeric membranes occurred by controlling the hydrolysis and condensation of TBT. Hydrophilic and hydrophobic segment in F127 have different affinity to the TiO2 nanoparticles and PES matrix respectively and plays an important role. The resultant PES hybrid membrane possesses a structure with good performance when the support layer with the larger finger-like pores structure analyzed in SEM images. Water permeability of the resultant hybrid membranes was 3 times higher than mixed matrix membrane (MMM) in physical blending method. The antifouling analysis by using humic acid as model foulants show antifouling property of hybrid membrane can be enhanced.
Contributor(s):
Nur Amelia Norzli - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875008122
Language:
English
Subject Keywords:
polyesthersulfone; ultrafiltration; antifouling
First presented to the public:
6/1/2019
Original Publication Date:
6/27/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 85
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-06-27 15:45:34.374
Submitter:
Mohd Jasnizam Mohd Salleh

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