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Highly Active Rutile TiO2 Nanocrystalline Photocatalysts.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-06-30 , DOI: 10.1021/acsami.0c03150 Veljko R Djokić 1 , Aleksandar D Marinković 1 , Rada D Petrović 1 , Ovidiu Ersen 2 , Spyridon Zafeiratos 3 , Miodrag Mitrić 4 , Colin Ophus 5 , Velimir R Radmilović 1, 6 , Djordje T Janaćković 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-06-30 , DOI: 10.1021/acsami.0c03150 Veljko R Djokić 1 , Aleksandar D Marinković 1 , Rada D Petrović 1 , Ovidiu Ersen 2 , Spyridon Zafeiratos 3 , Miodrag Mitrić 4 , Colin Ophus 5 , Velimir R Radmilović 1, 6 , Djordje T Janaćković 1
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The controllable synthesis of rutile TiO2 single crystal particles with the preferential orientation of {111} facets still remains a scientific and technological challenge. Here, we developed a facile route for fabrication of rutile TiO2 nanorod crystals (RTiO2NRs) having high ratios of oxidative {111} to reductive {110} surfaces. RTiO2NRs were synthesized using a peroxo–titanium complex (PTC) approach, which was controlled by changing the Ti/H2O2 ratio. The thus obtained RTiO2NRs revealed a high tendency to agglomerate through orientation-dependent attachment along the {110} facets. This resulted in an increased {111}/{110} surface ratio and led to a markedly improved photocatalytic activity of RTiO2NR aggregates. The reported findings illustrate the rich potential of the herein proposed facile and energy-efficient synthesis of nanostructured rutile TiO2-based photocatalysts.
中文翻译：
高活性金红石型TiO2纳米晶体光催化剂。
具有{111}面优先取向的金红石型TiO 2单晶颗粒的可控合成仍然是一项科学技术挑战。在这里，我们开发了一条易于制造的路线，以制造具有高氧化{111}与还原{110}表面比的金红石TiO 2纳米棒晶体（RTiO 2 NRs）。RTiO 2 NRs是使用过氧钛复合物（PTC）方法合成的，该方法可通过更改Ti / H 2 O 2的比例来控制。如此获得的RTiO 2NR显示出高度倾向通过沿{110}面的方向依赖性附着而聚集。这导致增加的{111} / {110}表面比率，并导致RTiO 2 NR聚集体的光催化活性显着改善。报道的发现说明了本文提出的纳米结构的金红石型TiO 2基光催化剂的简便且节能的合成方法的巨大潜力。
更新日期：2020-07-22
中文翻译：
高活性金红石型TiO2纳米晶体光催化剂。
具有{111}面优先取向的金红石型TiO 2单晶颗粒的可控合成仍然是一项科学技术挑战。在这里，我们开发了一条易于制造的路线，以制造具有高氧化{111}与还原{110}表面比的金红石TiO 2纳米棒晶体（RTiO 2 NRs）。RTiO 2 NRs是使用过氧钛复合物（PTC）方法合成的，该方法可通过更改Ti / H 2 O 2的比例来控制。如此获得的RTiO 2NR显示出高度倾向通过沿{110}面的方向依赖性附着而聚集。这导致增加的{111} / {110}表面比率，并导致RTiO 2 NR聚集体的光催化活性显着改善。报道的发现说明了本文提出的纳米结构的金红石型TiO 2基光催化剂的简便且节能的合成方法的巨大潜力。
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