Photodegradation Activity of Poly(ethylene oxide-b-ε-caprolactone)-Templated Mesoporous TiO2 Coated with Au and Pt-Reference-Cited by-同舟云学术

Photodegradation Activity of Poly(ethylene oxide-b-ε-caprolactone)-Templated Mesoporous TiO2 Coated with Au and Pt

Published:2020-08-01 Issue:8 Volume:20 Page:5276-5281
ISSN:1533-4880
Container-title:Journal of Nanoscience and Nanotechnology
language:en
Short-container-title:j nanosci nanotechnol

Author:

Chu Wei-Cheng¹,Kim Jeonghun²,Kim Minjun³,Alshehri Abdulmohsen Ali⁴,Alghamidi Yousef Gamaan⁴,Alzahrani Khalid Ahmed⁴,Yamauchi Yusuke²,Malgras Victor⁵,Ku Shiao-Wei¹

Affiliation:

1. Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan

2. Key Laboratory of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

3. School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia

4. Department of Chemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia

5. International Center for Young Scientists (ICYS) and International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan

Abstract

Mesoporous TiO2 films are synthesized through evaporation-induced self-assembly using poly(ethylene oxide-b-ε-caprolactone) diblock copolymers as a soft-template. Using small-angle X-ray scattering and scanning electron microscopy, we investigate the effect of the TiO2/PEO-b-PCL ratio on the resulting nanoarchitectonic structure. After sputter-coating Au and Pt layers, these Au/TiO2 and Pt/TiO2 nanocomposite films display drastically enhanced photodegradation of rhodamine 6G under ultraviolet irradiation, due to the metal films inhibiting the rapid recombination of photogenerated charge carriers.

Publisher

American Scientific Publishers

Subject

Condensed Matter Physics,General Materials Science,Biomedical Engineering,General Chemistry,Bioengineering

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