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Pd‐Decorated CuO Thin Film for Photodegradation of Acetaminophen and Triclosan under Visible Light Irradiation
Author(s) -
Katal Reza,
Panah Saeid Masudy,
Saeedikhani Mohsen,
Kosari Mohammadreza,
Sheng Chua Chin,
Leong Ong Say,
Xiao Gong,
Jiangyong Hu
Publication year - 2018
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201801440
Subject(s) - photocatalysis , materials science , photodegradation , thin film , visible spectrum , chemical engineering , surface plasmon resonance , degradation (telecommunications) , nanotechnology , nanoparticle , catalysis , optoelectronics , organic chemistry , chemistry , engineering , telecommunications , computer science
Abstract Inefficient visible light photocatalytic degradation of organic pollutants, such as acetaminophen (ACE) and triclosan (TS), is one of the main limiting factors for implementing cost‐effective metal oxide photocatalyst for large‐scale deployment. Here, a highly efficient CuO thin film photocatalyst is developed through rapid thermal annealing. The CuO thin film is decorated with Pd nanostructures for enhanced visible light degradation of ACE and TS. It is shown that compared to the as‐deposited thin CuO film photocatalyst, the rapid thermal assisted CuO photocatalyst can significantly enhance charge generation and separation efficiency through improvement of crystallinity and reduction of recombination centres. Furthermore, it is demonstrated that the incorporation of Pd nanostructures can considerably increase optical absorption, which further improve the photocatalytic performance through the enhancement of surface plasmon resonance. The CuO film with the 40 s of Pd sputtering (Pd40–CuO) shows the highest performance for photocatalytic degradation of both ACE and TS. The Pd40–CuO film shows good stability and does not show any considerable reduction in photocatalytic activity after five cycles. This indicates the high potential of Pd40–CuO for water and wastewater treatment on industrial scale.