[001]-Oriented Hittorf's Phosphorus Nanorods/Polymeric Carbon Nitride Heterostructure for Boosting Wide-Spectrum-Responsive Photocatalytic Hydrogen Evolution from Pure Water
[001]-Oriented Hittorf's Phosphorus Nanorods/Polymeric Carbon Nitride Heterostructure for Boosting Wide-Spectrum-Responsive Photocatalytic Hydrogen Evolution from Pure Water
复制标题
[001]定向希托夫磷纳米棒/聚合氮化碳异质结构用于促进纯水的广谱响应光催化析氢
DOI：
10.1002/anie.201911503
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发表时间：
2019-11-14
影响因子：
16.6
通讯作者：
Yang, Dongjiang
中科院分区：
文献类型：
--
作者：
Zhu, Yukun;Lv, Chunxiao;Yang, Dongjiang
红磷是一种很有前途的光催化剂，具有高达700 nm的宽可见光吸收，但快速的电荷复合限制了其光催化析氢反应（HER）活性。现在，[001]取向的希托夫磷（HP）纳米棒通过化学气相沉积策略成功地在聚合氮化碳（PCN）上生长。与裸露的PCN和HP相比，优化后的PCN@HP杂化材料表现出显着增强的光催化活性，在模拟太阳光和可见光照射下，纯水的HER速率分别达到33.2和17.5 mu mol h(-1)。理论和实验表明，PCN和[001]取向HP纳米棒之间的强电子耦合导致可见光吸收增强，大大加速光致电子空穴分离和转移，有利于光催化HER性能。
Red phosphorus is a promising photocatalyst with wide visible-light absorption up to 700 nm, but the fast charge recombination limits its photocatalytic hydrogen evolution reaction (HER) activity. Now, [001]-oriented Hittorf's phosphorus (HP) nanorods were successfully grown on polymeric carbon nitride (PCN) by a chemical vapor deposition strategy. Compared with the bare PCN and HP, the optimized PCN@HP hybrid exhibited a significantly enhanced photocatalytic activity, with HER rates reaching 33.2 and 17.5 mu mol h(-1) from pure water under simulated solar light and visible light irradiation, respectively. It was theoretically and experimentally indicated that the strong electronic coupling between PCN and [001]-oriented HP nanorods gave rise to the enhanced visible light absorption and the greatly accelerated photoinduced electron-hole separation and transfer, which benefited the photocatalytic HER performance.