Premium
Bimetallic Metal‐Organic Framework Derived ZnO/Ni 0.9 Zn 0.1 O Nanocomposites for Improved Photocatalytic Degradation of Organic Dyes
Author(s) -
Zhong Ming,
Qu ShuangYan,
Zhao Kun,
Fei Peng,
Wei MiaoMiao,
Yang Haidong,
Su Bitao
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201904629
Subject(s) - bimetallic strip , photocatalysis , non blocking i/o , materials science , calcination , catalysis , photodegradation , zinc , oxide , nanocomposite , degradation (telecommunications) , chemical engineering , band gap , metal , inorganic chemistry , nanotechnology , chemistry , metallurgy , organic chemistry , telecommunications , engineering , computer science , optoelectronics
An optimized structure is of considerable importance for nickle oxide (NiO)‐based materials to achieve high performance as catalyst for contaminant degradation due to the inherent large band gap. Herein, a series of hybrids of NiO nanoparticles doped with zinc oxide (ZnO) semiconductor were fabricated via a facile one‐step calcination of bimetallic metal‐organic frameworks with varied Ni 2+ /Zn 2+ molar ratios (MOF‐NiZn). It is worth noting that partial positions of Ni in NiO lattice are replaced by Zn to form a Ni 0.9 Zn 0.1 O phase. Benefiting from the unique hybrid advantage, the rationally designed material could effectively lower the band gap of NiO, thus improving the photocatalytic performance. The optimized ZnO/Ni 0.9 Zn 0.1 O‐82 catalyst exhibits the highest degradation activity towards methylene blue (MB) with efficiency up to 97.4 % within 60 min. Additionally, the radicals trapping experiments reveal that the photo‐generated hydroxyl radical ( . OH) is the predominant active species during the photodegradation of MB.