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Synthesis and characterization of polysulfone membrane incorporated with photocatalysts

Synthesis and characterization of polysulfone membrane incorporated with photocatalysts / Anwar Hafiz Sabran
Membran berpemangkin-foto telah menunjukkan potensi yang besar untuk digunakan dalam rawatan penulenan air cekap tenaga dan rawatan air sisa kerana ia menggabungkan pemisahan fizikal membran penapisan dan penguraian organik. Berbanding membran pemisah yang konvensional, membran berpemangkin-foto memiliki beberapa ciri unik, seperti anti-fouling, anti-mikrob, sangat hydrofilik dan pengoksidaan berpemangkin-foto dan pemisahan serentak, yang menjadikan mereka teknologi yang menarik dalam rawatan air. Kertas ini melaporkan mengenai penyediaan dan pencirian polysulfone membran matrix-campuran di mana pemangkin-foto bersaiz nano telah dimasukkan ke dalam bahan polysulfone dengan polyvinylpyrollidone (PVP) sebagai ejen membentuk liang. Kaedah fasa songsangan telah digunakan untuk menyediakan membran. PSf-MMMs kemudian dicirikan dengan menggunakan mikroskopi pengimbas elektron (SEM), X-ray penyebaran tenaga (EDX), Spektroskopi infra-merah pengubahan Fourier (FTIR) dan sudut sentuhan teknik sebelum pemangkinan-foto dan prestasi pemisahan secara fizikal dikaji. Berdasarkan kajian yang dijalankan, didapati bahawa membrane TiO2 bertitik Mn mempunyai prestasi terbaik antara membran yang dihasilkan oleh kerana prestasi yang tinggi dari segi pemisahan secara fizikal dan aktiviti pemangkinan-foto. Sifat hidrofilik membran dengan pemangkin-foto ini telah ditingkatkan dengan menambah pemangkin-foto itu tetapi perubahan struktur kelihatan tidak ketara kerana zarah bersaiz nano hanya tertumpu pada permukaan membran. Dari segi aktiviti pemangkinan-foto, penguraian asid humik dengan menggunakan membran berpemangkin-foto adalah sedikit lebih rendah daripada yang dimasukkan zarah-zarah bebas yang disebabkan oleh penyebaran tidak sekata dalam matrik membran. _______________________________________________________________________________________________________ Photocatalytic membranes have shown great potential for use in energy-efficient water purification and wastewater treatment since they combine the physical separation of membrane filtration and the organic degradation. Compared to conventional separation membranes, photocatalytic membranes possess a number of unique properties, such as anti-fouling, anti-microbial, superhydrophilicity, concurrent photocatalytic oxidation and separation, all of which make them an attractive technology in water treatment. This paper reports on the preparation and characterisation of polysulfone mixed-matrix membranes where different photocatalyst nanoparticles have been incorporated into polysulfone materials with polyvinylpyrollidone (PVP) as the pore forming agent. Phase inversion method was used to prepare the membranes. The PSf-MMMs were then characterized by using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier Transform Infrared Spectroscopy (FTIR) and contact angle techniques before photocatalytic and physical separation performance are studied. Based on the study, it was found that Mn-doped TiO2 membrane has the best performance among the membrane fabricated due to its high performances in term of physical separation performance and photocatalytic activity. The hydrophilicity of membranes with photocatalysts was enhanced by adding the photocatalyst but the structure changes are insignificant due to agglomeration of photocatalyst nanoparticles on membrane surfaces. In term of photocatalytic activity, the degradation of Humic Acid by using photocatalytic membranes is a bit lower than that free particles loading mainly due to the non-homogenous dispersion of nanoparticles in membrane matrix.
Contributor(s):
Anwar Hafiz Sabran - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875005647
Language:
English
Subject Keywords:
Photocatalytic; energy-efficient; wastewater
First presented to the public:
6/1/2015
Original Publication Date:
8/10/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 62
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-08-10 16:02:43.846
Submitter:
Mohd Jasnizam Mohd Salleh

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