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- W2922220332 abstract "Presently, hydrogen gas is produced by nuclear energy, combustion of fossil fuel andbiomass. There is another technology available for hydrogen named as photocatalyticprocess. Photocatalytic technology has grand potential for low-cost, environmentallyfriendly solar hydrogen production to support the future hydrogen economy. Thedifficulties faced by the photocatalytic process are the rapid recombination of photogeneratedelectron/hole pairs as well as backward reaction, reverse reaction of hydrogenand oxygen to water. Electron/hole pairs are recombined with very quickly and releaseenergy in the form of unproductive heat or photons. Besides that, backward reactiontakes place because it is thermodynamically favourable. The objectives of this project isto develop Cu/TiO2 photocatalyst to produce hydrogen from water under visible light byaddition of various concentration of glycerol and to enhance the activity of thephotocatalyst by adding glycerol as sacrificed agent. Cu/TiO2 is prepared using complexprecipitation method and tested its efficiency for hydrogen production under visiblelight. The performance of Cu/TiO2 in photocatalytic reaction was tested by measuringhydrogen production rates. Multiport photoreactor is used to investigate the reactionbetween photocatalysts with mixture of water/ glycerol, seawater, distilled water andrain water toward hydrogen generation. The gas produced is collected in a vertical glasstube over a period of 2 hour by water displacement and the data was recorded for every10 minutes.The physical and chemical properties of the modified photocatalysts wereinvestigated using TGA, FTIR, FESEM, DR-UV-Vis, BET surface area analysis, TPR,and XRD. Based on the result, photocatalyst of 10wt% 4G:Cu (mole ratioglycerol:copper = 4:1) calcined at180 for 30 min produced higher volume of hydrogenproduction with the medium of distilled water, water/glycerol. Besides that,water/glycerol medium produced a higher production of hydrogen for everyphotocatalysts compare to distilled water and rain water.The reduction of band gapenergy enhance the absorption properties of photocatalystand able to produce higher hydrogen gas" @default.
- W2922220332 created "2019-03-22" @default.
- W2922220332 creator A5035630931 @default.
- W2922220332 date "2011-05-01" @default.
- W2922220332 modified "2023-09-27" @default.
- W2922220332 title "Solar Hydrogen Generation from Seawater and Glycerol Water using Photocatalyst Cu/TiO2" @default.
- W2922220332 hasPublicationYear "2011" @default.
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