Efficient Reduction Photocatalyst of 4-Nitrophenol Based on Ag-Nanoparticles-Doped Porous ZnO Heterostructure

Oxide-supported Ag nanoparticles have been widely reported as a good approach to improve the stability and reduce the cost of photocatalysts. In this work, a Ag-nanoparticles-doped porous ZnO photocatalyst was prepared by using metal–organic frameworks as a sacrificial precursor and the catalytic ac...

Full description

Saved in:
Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2022-08, Vol.12 (16), p.2863
Main Authors: Lin, Shali, Mi, Xiaohu, Xi, Lei, Li, Jinping, Yan, Lei, Fu, Zhengkun, Zheng, Hairong
Format: Article
Language:English
Subjects:
Ag nanoparticles doped porous ZnO heterostructure
Aqueous solutions
Catalysts
Catalytic activity
Decomposition
Heterogeneous structure
Heterostructures
Hot electrons
Irradiation
Light
Light irradiation
localized surface plasmon resonance
Metal-organic frameworks
Methods
Nanoparticles
Nitrophenol
Organometallic compounds
p-Nitrophenol
Photocatalysis
Photocatalysts
Pollutants
Semiconductors
Silver
Silver compounds
Solar energy
Surface plasmon resonance
synergetic effect
Zinc oxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Oxide-supported Ag nanoparticles have been widely reported as a good approach to improve the stability and reduce the cost of photocatalysts. In this work, a Ag-nanoparticles-doped porous ZnO photocatalyst was prepared by using metal–organic frameworks as a sacrificial precursor and the catalytic activity over 4-nitrophenol was determined. The Ag-nanoparticles-doped porous ZnO heterostructure was evaluated by UV, XRD, and FETEM, and the catalytic rate constant was calculated by the change in absorbance value at 400 nm of 4-nitrophenol. The photocatalyst with a heterogeneous structure is visible, light-responsive, and beneficial to accelerating the catalytic rate. Under visible light irradiation, the heterostructure showed excellent catalytic activity over 4-nitrophenol due to the hot electrons induced by the localized surface plasmon resonance of Ag nanoparticles. Additionally, the catalytic rates of 4 nm/30 nm Ag nanoparticles and porous/nonporous ZnO were compared. We found that the as-prepared Ag-nanoparticles-doped porous ZnO heterostructure catalyst showed enhanced catalytic performance due to the synergetic effect of Ag nanoparticles and porous ZnO. This study provides a novel heterostructure photocatalyst with potential applications in solar energy and pollutant disposal.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano12162863