Physicochemkal properties and photocatalytic H2 evolution activity of Rh-doped La2Ti2O7 prepared by molten salt synthesis

Qian Wang; Takashi Hisatomi; Yosuke Moriya

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Physicochemkal properties and photocatalytic H2 evolution activity of Rh-doped La2Ti2O7 prepared by molten salt synthesis

机译：通过熔融盐合成制备的Rh掺杂的LA2TI2O7的物理化学性质和光催化H2的光催化H2的演化活性

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La2Ti2O7 doped with Rh showed photocatalytic activity for H2 evolution from an aqueous methanol solution under visible light irradiation (X >420 nm). Molten salt synthesis yielded Rh-doped La2Ti2O7 with a plate-like shape, and a higher crystallinity, phase purity, and visible light absorption capacity than is obtainable using solid state reaction and polymerized complex methods, owing to the photoexcitation of energy levels resulting from the Rh~(3+) doping. These factors led to an increased photocatalytic activity for H2 evolution after modification with Pt cocatalysts. The effects of the conditions used during molten salt synthesis of Rh-doped La2Ti2O7 on the resultant physical properties and photocatalytic activity are presented.

机译：用RH掺杂的LA2TI2O7在可见光照射下（X> 420 nm）在可见的甲醇溶液中显示出H2从水溶液中进化的光催化活性。熔融盐的合成产生了具有板状形状的Rh掺杂的LA2TI2O7，并且具有更高的结晶度，相纯度和可见的光吸收能力，而不是使用固态反应和聚合复合方法获得的，这是由于由固态反应和聚合的复杂方法，这是由于能量液位引起的光激素，从而产生了能量水平 rh〜（3+）掺杂。这些因素导致用PT肠结核病剂修饰后H2进化的光催化活性增加。介绍了掺杂RH2TI2O7在熔融盐合成过程中使用的条件对所得物理特性和光催化活性的影响。

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《Catalysis science & technology》 |2013年第8期|2098-2103|共6页
作者
Qian Wang; Takashi Hisatomi; Yosuke Moriya;
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作者单位

Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.;

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正文语种英语
中图分类汉语教学;
关键词
Photoexcitation; Hydrogen; physical propertiesSaltsmolten saltsEnergy levelVisible LightsynthesisMoltenSolid state reactionsactivity;

机译：光激发;氢;物理性能;

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Physicochemkal properties and photocatalytic H2 evolution activity of Rh-doped La2Ti2O7 prepared by molten salt synthesis

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