03144ntm a2200373 i 4500 vtls000102949 KUKTEM 20251117113356.0 180212s2017 my a f am 000 0 eng d THE0000948(Local) 201905271045 nazirah 201802121032 saini UMP eng UMP rda FKKSA .M37 2017 r Bc. Mariotte Patrick Jebi, author. Conversion of carbon dioxide to methanol over visible light responsive catalyst / Mariotte Anak Patrick Jebi Kuantan, Pahang : UMP, 2017 © 2017 xiv, 50 pages : illustrations (some color) ; 30 cm. + 1 CD-ROM text rdacontent text rdacontent unmediated rdamedia computer rdamedia volume rdacarrier computer disc rdacarrier text file PDF rda Faculty of Chemical & Natural Resources Engineering Project Paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2017 Includes bibliographical references The significant increase of carbon dioxide contributed for the largest share of the world’s greenhouse gas emissions. There is a growing need to mitigate CO2 emissions. One of the strategies to mitigate CO2 emissions is using CO2 as a raw material in chemical processes. In the present study, a TiO2 loaded copper (II) oxide (CuO) photoelectrode was synthesized, characterized and studied for photoelectrocatalytic (PEC) reduction of carbon dioxide (CO2) into methanol under visible light (λ > 470 nm) irradiation. In this perspective, The material was constructed via sol-gel method from copper (II) nitrate, Cu(NO3)2.3H2O (99 %) and commercial Degussa P25 TiO2 as precursors. The photocatalysts were characterized by X-ray diffraction, UV-vis absorption specra, X-ray photoelectron spectroscopy (XPS), photoluminescence spectrophotometer, and mott schottky (MS). Linear sweep voltammetry (LSV) was employed to evaluate the effect of visible light (λ >400 nm) on the CO2 reduction reactions. The characterization results indicated that the band gap energy of the CuO-TiO2 catalyst from UV-Vis is 1.39 eV. The flat band potential calculated from the MS data as 0.83 V versus normal hydrogen electrode (NHE). The LSV the dark and under visible light irradiation further support the visible light-responsive photocatalytic activities CuO-TiO2 giving onset potential value from -0.20 V with current peak potential appearing at -0.35V (vs NHE) suggesting an increase in photocurrent and occurrence CO2 photoreduction reaction. The PEC performance of CuO-TiO2 photocatalyst showed an increased methanol yield of 20.1 μmol.L-1.cm-2 under visible light irradiation. Faculty of Chemical & Natural Resources Engineering Dissertations Universities and Colleges Dissertations Theses 0 0 lcc 0 1 10000 10000 2019-09-04 0 FKKSA .M37 2017 r Bc. 0000122258 2021-03-12 00:00:00 1 2019-09-04 PSM PROSES TUKAR TAG RFID KEPADA UHF 0 0 lcc 0 0 10000 10000 2020-06-05 0 CD12434 T000000486 2021-05-04 00:00:00 1 2020-06-05 PSM VIRTUA40 7601 7607 VTLSSORT0080*0200*0400*0900*1000*2450*2640*2641*3000*3360*3361*3370*3371*3380*3381*3470*5000*5020*5040*5200*6100*6500*6501*9992