论文标题
黑白解剖酶，金红石和混合形式：带边缘和光催化活性
Black and White Anatase, Rutile and Mixed Forms: Band-Edges and Photocatalytic Activity
论文作者
论文摘要
在这里，我们使用原位光电化学测量值和XPS Valence频带测量值研究了不同多晶型物中“黑”氢化钛的带级能量。我们发现，黑金红石的传导带的能量高于0.4 eV的黑色催化酶。对于光催化氢的产生，在诸如黑色Degussa P25之类的多晶型异源期中，黑金红石可以充当光敏剂，而黑色解剖酶则在H2O上提供电荷进行催化以产生H2。通过优化黑色释放酶/金红石连接的热还原条件，H2产生可以显着增加。
Here we investigate the band-level energetics of "black" hydrogenated titania in different polymorphs using in-situ photoelectrochemical measurements and XPS valence band measurements. We find that the conduction band of black rutile is higher in energy than in black anatase by 0.4 eV. For photocatalytic hydrogen generation, in a polymorph hetero-junction such as in black Degussa P25, thus black rutile can act as a photosensitizer while black anatase provides charge-mediation catalysis onto H2O to generate H2. By optimizing the thermal reduction conditions of black anatase/rutile junctions the H2 production can be significantly increased.
