02479nam a2200241 a 4500 vtls000068793 KUKTEM 20251114204534.0 130304t2012 my a f m 000 0 eng d THE0003201(Local) 201905161449 zul 201303041253 Fida UMP TD468 .A43 2012 rs Bc. Nor Amalina Hussain Preparation, characterization and activity evaluation of multi-component photocatalyst under visible light irradiation / Nor Amalina Hussain Kuantan, Pahang : UMP, 2012 xiv, 81 p. : ill. (some col.) ; 30 cm. + 1 CD-ROM Project paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang - 2012 Bibliography : p. 47-49 The aim of the present work is to synthesize and characterize P-type, N-type and P-N type photocatalysts for wastewater treatment, to compare photocatalytic activity of different catalysts for dye degradation and to study the effect of visible light irradiation of difference parameter of photocatalytic reaction. Multicomponent P-type and P-N type photocatalyst were synthesized and characterized by XRD, SEM and BET. The visible light is used to study the catalyst activity for the composition of dye using photocatalyst. However, the photocatalytic activity under visible light is low. In order to increase its activity, multi-component photocatalyst is used. P-N-type semiconductor is used as the photocatalysts as it improve the photocatalytic activity using couple catalyst by accelerating the separation of electron-hole pair as well as to efficiently extend the region of visible light utilization. This research will demonstrated the feasibilities of the photocatalytic degradation of Methylene Blue for treating wastewaters where it is depends by varying the initial concentrations of Methylene Blue, addition amounts of P-type photocatalyst and the light irradiation. As a result, the photocatalytic activity followed the series of CaFe2O4-V2O5 >> CaFe2O4-WO3 > CaFe2O4. Based on the findings of this study, some recommendation can be made which are calcinations of the catalyst with different temperature, effect of visible light power intensity and effect of different dopants and their characterization by XRD and XPS. Water Purification Photocatalysis 0 0 0 1 10000 10000 2019-09-04 0 TD468 .A43 2012 rs Bc. 0000068429 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 10000 10000 2019-09-04 0 CD 6431 | TD468 .A43 2012 rs Bc. 0000068430 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 3786 3792 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*9992