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MoS 2 nano‐flowers stacked by ultrathin sheets coupling with oxygen self‐doped porous biochar for efficient photocatalytic N 2 fixation
Author(s) -
Liu Baojun,
Qin Jiangzhou,
Yang Han,
Hu Xia,
Zhao Wenjun,
Zhang Zhiguang
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202000992
Subject(s) - biochar , photocatalysis , catalysis , adsorption , materials science , oxygen , mesoporous material , nano , doping , chemical engineering , porosity , ammonia , nanotechnology , chemistry , composite material , organic chemistry , pyrolysis , optoelectronics , engineering
The adsorption and activation of N 2 are significant steps for ammonia (NH 3 ) production, and the traditional photocatalysts are limited in the reaction processes. To explore more efficient catalytic materials, MoS 2 nano‐flowers stacked by ultrathin sheets were in situ grown on oxygen self‐doped porous biochar (OPC). The resultant MoS 2 /OPC composites with large exposed surface sites could be helpful to charge migration, and adsorption and activation of inert N 2 molecules, which are favorable for excellent and stable photocatalytic N 2 reduction reaction (NRR) in pure water. As a result, the productivity of ammonia is significantly improved by MoS 2 /OPC and the NH 3 generation rate is as high as 37.878 μmol ⋅ g −1 ⋅ h −1 . The results presented new insights into rational design of highly active catalysts for enhanced NRR performance.