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- W3202473054 abstract "Photocatalytic hydrogen production over ceramic oxide photocatalysts is a promising technique for green energy production. However, most ceramics with large bandgap energies (Eg) do not operate in visible light. In this study, we present a sol-gel-based process for the preparation of SrAl2O4 nanoparticles coupled with precise amounts of Ag2O and supported with carbon nanotubes (CNTs) to form Ag2O/SrAl2O4/CNT ternary nanocomposites. The characterization of the prepared photocatalysts using various methods revealed a visible-light response in the presence of 0.5–4.0 wt% Ag2O and 4.0% CNTs. The 3.0 wt% Ag2O/SrAl2O4/4.0% CNT photocatapyst exhibited visible-light absorbance edge at 481 nm and Eg of 2.49 eV compared to 4.64 eV for SrAl2O4/4.0% CNT. Hydrogen evolution rate in the 10% glycerol/water system and Pt cocatalyst utilizing 3.0 wt% Ag2O/SrAl2O4/4.0% CNT was 455.5 μmol g−1h−1 at an optimized dosage of 1.6 gL−1 with commendable recyclability. The improved performance is attributed to the effective visible-light response and enhanced photocharge mobility because of the addition of a precise amount of Ag2O and CNTs." @default.
- W3202473054 created "2021-10-11" @default.
- W3202473054 creator A5089565001 @default.
- W3202473054 date "2022-01-01" @default.
- W3202473054 modified "2023-09-27" @default.
- W3202473054 title "Hydrogen evolution over sol-gel prepared visible-light-responsive Ag2O/SrAl2O4/CNT ternary photocatalyst" @default.
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- W3202473054 doi "https://doi.org/10.1016/j.ceramint.2021.09.233" @default.
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