TY  - CONF
AV  - none
ID  - scholars5868
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991325428&doi=10.1063%2f1.4919193&partnerID=40&md5=29bc190ae0e5a7882833f9e3eae5e1f5
PB  - American Institute of Physics Inc.
VL  - 1669
SN  - 0094243X
TI  - Effect of heat treatment on the physical properties of bimetallic doped catalyst, Cu-Ni/TiO 2
A1  - Bashiri, R.
A1  - Mohamed, N.M.
A1  - Kait, C.F.
A1  - Sufian, S.
N2  - Post heat treatment is critical for the doped semiconductor oxide in order to improve its photocatalytic performance. Thus work had been carried out to understand the effect of different calcination temperature (400, 450 and 500°C) on the physical properties of nanosized Cu-Ni/TiO 2 Cu-Ni doped TiO 2 nanoparticles prepared using a combined method of sol-gel and hydrothermal. The treated samples were characterized using Raman spectroscopy, Brunauer-Emmett-teller (BET) measurement, high resolution transmission electron microscopy (HRTEM), field-emission scanning electron microscopy (FESEM), and diffuse reflectance UV-Vis spectroscopy (DR-UV-Vis). Raman analysis showed that all samples displayed anatase (101) phase of TiO 2 , which is in good agreement with the TEM results. BET data showed that all prepared Cu-Ni/TiO 2 with different calcination temperature are mesoporous. SEM images displayed spherical particles with typical size of about 15 to 20 nm. UV-Vis spectra illustrated that the absorbance edge of all prepared Cu-Ni/TiO 2 have extended to the visible region with bandgap energies (2-2.1 eV) less than the pure anatase TiO 2 (3.2 eV). Calcination temperature of 450°C is considered to be the optimum as it converts the synthesized Cu-Ni/TiO 2 sample to have smaller average particle size with higher surface area that lead to more absorbance in the visible region and lower bandgap energy. © 2015 AIP Publishing LLC.
N1  - cited By 5; Conference of 23rd Scientific Conference of Microscopy Society Malaysia, SCMSM 2014 ; Conference Date: 10 December 2014 Through 12 December 2014; Conference Code:113582
Y1  - 2015///
ER  -