TY  - JOUR
T1  - Enhanced Photocatalytic Degradation of Methyl Orange using
Ag-Doped TiO<SUB>2</SUB> Photocatalyst
AU - Pei Lim, Ying AU - Chin Lim, Ying AU - Kanakaraju, Devagi AU - Ling Tan, Huey 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 12
SP  - 4406
EP  - 4413
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.4406.4413
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.4406.4413
KW  - Dye
KW  -titanium oxide
KW  -doping
KW  -photocatalyst
KW  -photodegradation
KW  -Ag-TiO2
AB  - In the present study, Ag-doped Titanium dioxide (Ag-TiO<SUB>2</SUB> ) photocatalyst was prepared by wet 
impregnation method. The effect of dopant concentration, incubation temperature and incubation time on the
photocatalytic degradation of Methyl Orange (MO) in aqueous suspension under Ultra Violet (UV) light
irradiation were studied systematically. The synthesized photocatalyst was characterized using XRD and
SEM-EDX mapping. The characterization results confirmed that Ag was successfully doped into TiO<SUB>2</SUB> with 
anatase phase structure. The Ag-TiO<SUB>2</SUB> photocatalyst exhibited the highest dye removal of 85% efficiency with 
5 wt.% dopant concentration when the incubation temperature and time were 70°C and 8 h, respectively. The
kinetic study revealed that photocatalytic reaction follows Langmuir Hinshelwood (L-H) Model and
pseudo-first order law with the highest regression coefficient of 0.992. Ag-TiO<SUB>2</SUB> was found to be an 
efficient photocatalyst showing enhanced photocatalytic activity for MO decolorization under UV
irradiation.
ER  -