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All Journal SPEKTRA: Jurnal Kajian Pendidikan Sains
Bakar, Suriani Abu
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Astronomy Chemistry Education Physics

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FABRICATION OF SAND/ZINC OXIDE/TITANIUM DIOXIDE NANOCOMPOSITE AS PHOTOCATALYST Idris, Nur Jannah; Bakar, Suriani Abu; Muqoyyanah, Muqoyyanah; Mohamat, Rosmanisah; Fatiatun, Fatiatun; Ahmad, Mohd Khairul
JURNAL SPEKTRA Vol 5, No 2 (2019): SPEKTRA: Jurnal Kajian Pendidikan Sains
Publisher : Program Studi Pendidikan Fisika, FITK, UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/spektra.v5i2.107

Abstract

 In this work, a nanocomposite photocatalyst was fabricated by growing zinc oxide (ZnO) and titanium dioxide (TiO2) on the sand as a substrate. The initial sand/ZnO was fabricated via sol-gel immersion method for 4 h at 95℃. Furthermore, the sand/ZnO/TiO2 was fabricatedusing hydrothermal method for 5 h at 150℃. Based on field emission scanning electron microscopy (FESEM) analysis, the fabricated sand/ZnO/TiO2 consists of random formation of hexagonal ZnO nanorods and two pyramidal spindle ends of TiO2 nanorods. The addition of TiO2 on top of ZnO nanorods increased the number of active sites which enables more contaminants to be absorbed thus enhanced the photocatalysis process. Moreover, based on the micro-Raman spectra, the synthesized TiO2 was in rutile phase and the ZnO peak was unobservable due to the overlapping with TiO2 peak. Based on its morphological and structural properties, the fabricated sand/ZnO/TiO2 nanocomposite was potential to be applied as photocatalyst.
Fabrication of Nanofiltration Membrane Utilising Surfactant Via Non-Solvent Induced Phase Separation Method Mohamat, Rosmanisah; Bakar, Suriani Abu; Muqoyyanah, Muqoyyanah; Idris, Nur Jannah; Rohani, Rosiah; Fatiatun, Fatiatun
JURNAL SPEKTRA Vol 5, No 2 (2019): SPEKTRA: Jurnal Kajian Pendidikan Sains
Publisher : Program Studi Pendidikan Fisika, FITK, UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/spektra.v5i2.108

Abstract

In this work, graphene oxide (GO) and titanium dioxide (TiO2) were used as an additive to fabricate the nanofiltration (NF) membrane. GO was synthesised via electrochemical exfoliation method utilising sodium bis(3,5,5-trimethyl-1-hexyl) sulphosuccinate (AOT4) surfactant. The synthesised GO was then used to fabricate PVDF-based NF membrane namely PVDF/GO_TiO2 via non-solvent induced phase separation (NIPS) method. The effects of embedded GO and TiO2 on the morphology and structural properties of PVDF/GO_TiO2 were investigated by using field emission scanning electron microscopy (FESEM) and micro-Raman spectroscopy. The finding shows that PVDF/GO_TiO2 present thin and dense top layer supported by macro-voids sub-layer with sponge-like layer at the bottom. Based on its morphology, the fabricated PVDF/GO_TiO2 membrane is potential to be applied as membrane filtration for water treatment application.
Co-Authors Fatiatun, Fatiatun Idris, Nur Jannah Mohamat, Rosmanisah Mohd Khairul Ahmad, Mohd Khairul Muqoyyanah, Muqoyyanah Rohani, Rosiah