Sains Malaysiana 46(12)(2017): 2515–2521
http://dx.doi.org/10.17576/jsm-2017-4612-29
Solvothermal Synthesis of Anatase
TiO2 Nanosheets
with Exposed {001} Facets
(Sintesis Solvoterma Anatase Helaian Nano TiO2 dengan Faset {001} Terdedah)
MADIHA YASIR1., M. TAZLI
AZIZAN1,3*,
ANITA
RAMLI2,3
& MARIAM AMEEN1
1Chemical Engineering Department,
Universiti Teknologi PETRONAS, 31750
Tronoh, Perak Darul Ridzuan,
Malaysia
2Department of Fundamental and Applied
Sciences, Universiti Teknologi
PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan,
Malaysia
3Center for Biofuel
and Biochemical Research (CBBR), Universiti Teknologi PETRONAS,
31750 Tronoh, Perak Darul Ridzuan, Malaysia
Diserahkan: 18 Disember 2015/Diterima: 5
September 2016
ABSTRACT
Enhancing the catalytic activity
of titania
(TiO2)
nanomaterials by controlling the size, surface area and percentage
of highly reactive exposed {001} facets has become attractive
in the recent years because of its wider applications in the
different fields of scientific research. In the present study,
anatase TiO2 nano-sized sheets (TNS) were synthesized using a
simple ethanol assisted solvothermal
chemical route. The TNS structures were characterized using Field Emission Scanning
Electron Microscopy (FE-SEM), Transmission electron
microscopic (TEM), Raman analysis, X-ray diffraction (XRD)
and Accelerated surface area and porosimetry
(ASAP)
analysis. The results from TEM, Raman and XRD analysis
confirmed the presence of anatase
crystalline structure of TNS with the size range of 20-40 nm. The synthesized TNS
structures possess 60% of highly reactive exposed
{001} facets with a total surface area of 73 m²/g. These tremendous
crystalline properties of solvothermally
synthesized TNS structure makes it as an attractive catalyst for environmental
and bio-fuel applications.
Keywords: Anatase TiO2; nanosheets;
solvothermal; {001} Facets
ABSTRAK
Peningkatan aktiviti perangsang menggunakan bahan nano titania
(TiO2) dengan mengawal saiz, permukaan dan peratusan
faset {001} terdedah
sangat reaktif telah menjadi tarikan
dalam beberapa
tahun kebelakangan kerana penggunaan yang lebih meluas dalam
perbezaan bidang
penyelidikan saintifik. Dalam kajian ini, helaian
bersaiz nano
anatase TiO2 (TNS)
telah disintesis
menggunakan laluan etanol mudah berbantu
kimia solvoterma.
Struktur TNS telah
dicirikan menggunakan
pancaran medan imbasan elektron mikroscopi (FE-SEM), elektron
penghantaran mikroskopik
(TEM),
analisis Raman, pembelauan
sinar-x (XRD) dan
kawasan permukaan
pecutan serta analisis
porosimetri (ASAP). Keputusan daripada
analisis TEM, Raman dan
XRD
mengesahkan kewujudan
struktur hablur
anatase TNS dengan
pelbagai julat
saiz 20-40 nm. Struktur sintesis TNS memiliki
60% daripada faset
{001} terdedah sangat reaktif dengan jumlah keluasan permukaan 73 m²/g. Sifat kristal solvoterma yang hebat daripada struktur TNS yang disintesis
menjadikannya sebagai
pemangkin menarik untuk alam sekitar
dan aplikasi
bio-bahan api.
Kata kunci: Anatase
TiO2; faset
{001}; helaian nano;
solvoterma
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*Pengarang
untuk surat-menyurat;
email: tazliazizan@utp.edu.my