Black phosphorus: A promising two dimensional visible and near-infrared-activated photocatalyst for hydrogen evolution
Black phosphorus: A promising two dimensional visible and near-infrared-activated photocatalyst for hydrogen evolution
复制标题
DOI：
10.1016/j.apcatb.2017.06.002
复制
发表时间：
2017-11
影响因子：
22.1
通讯作者：
Mingshan Zhu;Y. Osakada;Sooyeon Kim;M. Fujitsuka;T. Majima
中科院分区：
文献类型：
--
作者：
Mingshan Zhu;Y. Osakada;Sooyeon Kim;M. Fujitsuka;T. Majima
寻找在可见光和近红外（NIR）光照射下直接将水分解成氢（H2）的活性光催化剂仍然是太阳能利用中最具挑战性的任务之一。本文报道了二维（2D）黑磷（BP）纳米片可以利用可见光和近红外光进行h2进化。在还原氧化石墨烯和Pt纳米粒子存在的情况下，在>420 nm和>780 nm辐照4 h后，激发BP纳米薄片的h2o2含量分别为5.13和1.26 μmol。在420±5 nm（可见光）和780±5 nm（近红外）处，表观量子效率分别高达约8.7%和1.5%。这些结果表明，2D BP可以作为可见光和nir激活的单质光催化剂用于人工光合作用和可再生能源转化。
The search for active photocatalysts that directly split water to hydrogen (H2) under visible and near-infrared (NIR) light irradiation remains one of the most challenging tasks for solar energy utilization. Here we report that two dimensional (2D) black phosphorus (BP) nanoflakes can harness visible and NIR light for H2evolution. In the presence of reduced graphene oxide and Pt nanoparticles, ca. 5.13 and 1.26 μmol H2were obtained after excited BP nanoflakes under >420 nm and >780 nm irradiation for 4 h, respectively. The apparent quantum efficiencies (AQEs) were as high as approximately 8.7% at 420 ± 5 nm (visible) and 1.5% at 780 ± 5 nm (NIR), respectively. These results indicate that 2D BP can be used as visible- and NIR-activated elemental photocatalyst in artificial photosynthesis and renewable energy conversion.