The influence of polyethylene glycol on characteristic of Fe-N-TiO 2 photocatalyst and its activity for water splitting

Fe-N-TiO 2 photocatalyst has been used in water splitting to produce hydrogen. Templating agent and dopant modification intends to determine the optimum composition with the best characterization and the highest production rate in visible light. Fe-N-TiO 2 is synthesized using a sol-gel method with...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-06, Vol.1567 (2), p.22022
Main Authors: Priatmoko, S, Sadewo, R P, Harjito, Rakainsa, S K
Format: Article
Language:English
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Summary:Fe-N-TiO 2 photocatalyst has been used in water splitting to produce hydrogen. Templating agent and dopant modification intends to determine the optimum composition with the best characterization and the highest production rate in visible light. Fe-N-TiO 2 is synthesized using a sol-gel method with a various PEG and N weight percent. The variation of PEG is 2, 3, and 4% while N is 20, 25, and 30%w/w. Photocatalyst is characterized using DR-UV to find the band gap, XRD to see the crystallinity, and FTIR to know the functional group. Hydrogen gas from water splitting is analyzed using GC-TCD. Fe-N-TiO 2 with 20wt% N can decrease up band gap to 2.56 eV. Photocatalyst with 4% PEG accelerates gelation time to 164.33 hours. The calculation of PEG anatase phase is 86.86% while the crystallite size is 44.26 nm. Synthesized Fe-N-TiO 2 has major absorbtion at 520 cm-1 which is a region of Ti-O. From the activity test, Fe-N-TiO 2 with 2% PEG and 20wt% N produces 0.076 μmol/hour hydrogen.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1567/2/022022