Few-Layer Black Phosphorus Nanosheets: A Metal-Free Cocatalyst for Photocatalytic Nitrogen Fixation

• DOI: 10.1021/acsami.9b21167
• Publication Date: 2020-03-26T08:26:55Z
• Authors: Zhi-Kai Shen; Yong-Jun Yuan; Pei Wang; Wangfeng Bai; Lang Pei; Shiting Wu; Zhen-Tao Yu; Zhigang Zou
• Keywords: Black Phosphorus

Exploiting an appropriate strategy to prepare fine crystal quality black phosphorus nanosheet (BPNS) catalyst is a major challenge for its practical application in catalysis. Herein, we address this by developing rapid electrochemical expansion scale preparation of BPNSs from bulk phosphorus, which was demonstrated be active cocatalyst photocatalytic nitrogen fixation the presence CdS as photocatalyst. The transient photocurrent and charge density studies show that can efficiently accelerate separation CdS, leading enhanced activities BPNS/CdS nanocomposites fixation. 1.5% photocatalyst exhibits highest activity with NH3 evolution rate 57.64 μmol·L–1·h–1. This study not only affords simple synthesis but also provides new insights into design development phosphorus-based materials low-cost metal-free cocatalysts