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Bimetallic Metal‐Organic Framework Derived ZnO/Ni0.9Zn0.1O Nanocomposites for Improved Photocatalytic Degradation of Organic Dyes.
- Source :
-
ChemistrySelect . 2/14/2020, Vol. 5 Issue 6, p1858-1864. 7p. - Publication Year :
- 2020
-
Abstract
- 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 Ni2+/Zn2+ molar ratios (MOF‐NiZn). It is worth noting that partial positions of Ni in NiO lattice are replaced by Zn to form a Ni0.9Zn0.1O 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/Ni0.9Zn0.1O‐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. [ABSTRACT FROM AUTHOR]
- Subjects :
- *METAL-organic frameworks
*ORGANIC dyes
*METHYLENE blue
*HYDROXYL group
*ZINC oxide
Subjects
Details
- Language :
- English
- ISSN :
- 23656549
- Volume :
- 5
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- ChemistrySelect
- Publication Type :
- Academic Journal
- Accession number :
- 141721258
- Full Text :
- https://doi.org/10.1002/slct.201904629