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- W3000708492 abstract "Photonic crystals consisting of TiO2 nanotube arrays (PMTiNTs) with periodically modulated diameters were fabricated using a precise charge-controlled pulsed anodization technique. The PMTiNTs were decorated with gold nanoparticles (Au NPs) to form plasmonic photonic crystal photocatalysts (Au-PMTiNTs). A systematic study of CO2 photoreduction performance on as-prepared samples was conducted using different wavelengths and illumination sequences. A remarkable selectivity of the mechanism of CO2 photoreduction could be engineered by merely varying the spectral composition of the illumination sequence. Under AM1.5 G simulated sunlight (pathway#1), the Au-PMTiNTs produced methane (302 μmol gcat.-1 h−1) from CO2 with high selectivity (89.3 %). When also illuminated by a UV-poor white lamp (pathway#2), the Au-PMTiNTs produced formaldehyde (420 μmol gcat.-1 h−1) and carbon monoxide (323 μmol gcat.-1 h−1) with almost no methane evolved. We confirmed the photoreduction results by 13C isotope labeling experiments using GCMS. These results point to optical control of the selectivity of high-rate CO2 photoreduction through selection of one of two different mechanistic pathways. Pathway#1 implicates electron-hole pairs generated through interband transitions in TiO2 and Au as the primary active species responsible for reducing CO2 to methane. Pathway#2 involves excitation of both TiO2 and surface plasmons in Au. Hot electrons produced by plasmon damping and photogenerated holes in TiO2 proceed to reduce CO2 to HCHO and CO through a plasmonic Z-scheme." @default.
- W3000708492 created "2020-01-23" @default.
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- W3000708492 date "2020-06-01" @default.
- W3000708492 modified "2023-10-16" @default.
- W3000708492 title "Optical control of selectivity of high rate CO2 photoreduction via interband- or hot electron Z-scheme reaction pathways in Au-TiO2 plasmonic photonic crystal photocatalyst" @default.
- W3000708492 cites W1802998091 @default.
- W3000708492 cites W1826033054 @default.
- W3000708492 cites W1829643206 @default.
- W3000708492 cites W1963775803 @default.
- W3000708492 cites W1967741286 @default.
- W3000708492 cites W1972724400 @default.
- W3000708492 cites W1986363088 @default.
- W3000708492 cites W1986488508 @default.
- W3000708492 cites W1986927722 @default.
- W3000708492 cites W1988682919 @default.
- W3000708492 cites W1989651395 @default.
- W3000708492 cites W1992358055 @default.
- W3000708492 cites W1996412727 @default.
- W3000708492 cites W2002270646 @default.
- W3000708492 cites W2004407522 @default.
- W3000708492 cites W2006962612 @default.
- W3000708492 cites W2011564123 @default.
- W3000708492 cites W2012247623 @default.
- W3000708492 cites W2013614888 @default.
- W3000708492 cites W2014469169 @default.
- W3000708492 cites W2014605834 @default.
- W3000708492 cites W2015770359 @default.
- W3000708492 cites W2019739223 @default.
- W3000708492 cites W2022621714 @default.
- W3000708492 cites W2036572843 @default.
- W3000708492 cites W2036833311 @default.
- W3000708492 cites W2043512990 @default.
- W3000708492 cites W2049056022 @default.
- W3000708492 cites W2051207051 @default.
- W3000708492 cites W2051733141 @default.
- W3000708492 cites W2053917881 @default.
- W3000708492 cites W2054627728 @default.
- W3000708492 cites W2060617832 @default.
- W3000708492 cites W2070161787 @default.
- W3000708492 cites W2070492018 @default.
- W3000708492 cites W2075390411 @default.
- W3000708492 cites W2078286191 @default.
- W3000708492 cites W2078571947 @default.
- W3000708492 cites W2080357626 @default.
- W3000708492 cites W2082142323 @default.
- W3000708492 cites W2086515394 @default.
- W3000708492 cites W2119585240 @default.
- W3000708492 cites W2120251105 @default.
- W3000708492 cites W2121821808 @default.
- W3000708492 cites W2139762237 @default.
- W3000708492 cites W2140134018 @default.
- W3000708492 cites W2150162686 @default.
- W3000708492 cites W2162060649 @default.
- W3000708492 cites W2171826049 @default.
- W3000708492 cites W2199400371 @default.
- W3000708492 cites W2216385612 @default.
- W3000708492 cites W2225958871 @default.
- W3000708492 cites W2274087902 @default.
- W3000708492 cites W2299133078 @default.
- W3000708492 cites W2314114141 @default.
- W3000708492 cites W2317087285 @default.
- W3000708492 cites W2318830133 @default.
- W3000708492 cites W2323604837 @default.
- W3000708492 cites W2327362260 @default.
- W3000708492 cites W2332965571 @default.
- W3000708492 cites W2333197797 @default.
- W3000708492 cites W2334092527 @default.
- W3000708492 cites W2400790165 @default.
- W3000708492 cites W2460618232 @default.
- W3000708492 cites W2494141290 @default.
- W3000708492 cites W2507838750 @default.
- W3000708492 cites W2512265267 @default.
- W3000708492 cites W2549267364 @default.
- W3000708492 cites W2615351390 @default.
- W3000708492 cites W2760833293 @default.
- W3000708492 cites W2784980773 @default.
- W3000708492 cites W2790092629 @default.
- W3000708492 cites W2808164051 @default.
- W3000708492 cites W2884977534 @default.
- W3000708492 cites W2886911830 @default.
- W3000708492 cites W2888640270 @default.
- W3000708492 cites W2903681646 @default.
- W3000708492 cites W2906878384 @default.
- W3000708492 cites W2911443767 @default.
- W3000708492 cites W2914193344 @default.