Premium
Engineering a Rapid Charge Transfer Pathway for Enhanced Photocatalytic Removal Efficiency of Hexavalent Chromium over C 3 N 4 /NH 2 –UIO‐66 Compounds
Author(s) -
Xu Zhenmin,
Deng Xiaoming,
Chen Yao,
Wen Jieya,
Shi Liyi,
Bian Zhenfeng
Publication year - 2021
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.202000416
Subject(s) - hexavalent chromium , photocatalysis , materials science , charge carrier , electron transfer , charge (physics) , conduction band , chromium , irradiation , photochemistry , chemical engineering , nanotechnology , optoelectronics , chemistry , electron , catalysis , metallurgy , organic chemistry , physics , quantum mechanics , engineering , nuclear physics
Designing high‐efficiency photocatalysts with high charge separation and rapid charge transfer still a challenge. Herein, highly effective g‐C 3 N 4 /NH 2 –UIO‐66 (CNU) hybrids are developed using an engineered ZrN bond between the two components. The formation of the ZrN bond provides an electron transfer pathway between the conduction band (CB) of g‐C 3 N 4 (CN) and Zr centers, which shortens the carrier migration distance, greatly enhancing the separation efficiency of photogeneration carriers. The as‐prepared CNU shows an outstanding performance for photocatalytic reduction of Cr(VI) under visible light irradiation due to the rapid charge carrier interfacial transfer. This work provides a promising strategy for the design of efficient photocatalysts and helps to establish an effective and sustainable method for removing Cr(VI) under ambient conditions.