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- W61865879 abstract "A platinum loaded TiO2 P25 catalyst was prepared by photodeposition procedure. Process related controlmechanisms as stirring rate and UV intensity show high sensitivity with respect to noble metal deposition. Thepresence of platinum shows consistent minor improvements in photoactivity with different impacts for variousorganic compounds. Degradation is determined by measuring the absorption spectrum using UV spectrocscopy.Hydrogen evolution measurements were done with a gas chromatograph in combination with a thermal conductivitydetector. The catalytic effect of platinum shows strong improvement in hydrogen production. In theabsence of sacrificial agents electron-hole recombination dominates having a detrimental effect on the reductionof protons forming hydrogen. The combination of Methanol and formic acid (FA) with an organic contaminant(methyl orange (MO) /acid orange 7 (AO)) showed a big improvement in hydrogen production. The additionof organic compounds results in effects which depend on the pH of the solution. In the case of MO, acidicenvironments at pH levels of 2 result in nearly direct decolorization with an obvious mitigation of hydrogenproduction. At pH levels of 5 an improvement of hydrogen production can be observed which exceeds theproduction rate of systems without organic compounds which was demonstrated by using MO and methanol.For that case complete degradation was reach after approximately 25 minutes. It was successfully shown thatdegradation of pollutants in waste water can be coupled with hydrogen production with positive effect for oneof the processes based on the pH of the system." @default.
- W61865879 created "2016-06-24" @default.
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- W61865879 date "2014-01-01" @default.
- W61865879 modified "2023-09-27" @default.
- W61865879 title "Performance of platinized TiO2 on organic dyedegradation coupled with H2 production" @default.
- W61865879 hasPublicationYear "2014" @default.
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