Effective strategy to improve photocatalytic activity in concave Au NRs-Pt-CdS hetero-nanostructure

Liu，Jia1; Wang，Xin1; Zhang，Leiyang1; Li，Chunchun1; Zhu，Guanjun1; Miao，Zhuang1; Zhang，Amei1; Hou，Hongping1; Zhou，Zhenhua1; Zhou，Li2; Wang，Ququan3; Du，Hongliang1

2023-11-25

10.1016/j.jallcom.2023.171325

Journal of Alloys and Compounds   Impact Factor & Quartile

0925-8388

1873-4669

Photocatalytic water splitting for hydrogen (H) production has been comprehensively investigated for application in the field of energy science. However, the energy conversion efficiency is not satisfactory in some practical aspects. In this work, we proposed a well-controlled synthetic strategy to develop concave gold nanorods (Au NRs) with substantially enhanced photocatalytic performance for H production. Concave Au NRs with high-index facets are synthesized using the one-step process in aqueous solution. Morphology evolution and plasmon properties of concave Au NRs are carefully studied by adjusting several key growth parameters. Different from the cylindrical Au NRs synthesized using seed-mediated method, the extinction spectra of concave Au NRs show three plasmon resonance modes (transverse edge mode, transverse hybrid mode, and longitudinal corner mode). Pt nanoparticles and CdS nanocrystals are selectively grown onto Au NRs through the composition design. The photocatalytic H production rate of concave Au NRs-Pt-CdS hetero-nanostructure reaches a value as high as 21654.56 μmol·g·h. These characteristics suggest the great potential of novel faceted metal nanostructures for excellent performance of photocatalysis applications.

Concave Au NRs H2 production rate High-index facets Plasmonic photocatalyst Surface plasmon resonance

SCI

English

Others

National Natural Science Foundation of China[12074296];National Natural Science Foundation of China[12174294];

Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering

Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:001049073100001

ELSEVIER SCIENCE SA

MATERIALS SCIENCE

2-s2.0-85166001789

Scopus

1.Multifunctional Electronic Ceramics Laboratory,College of Engineering,Xi'an International University,Xi'an,710077,China
2.Department of Physics,Key Laboratory of Artificial Micro,and Nano-structures of the Ministry of Education,Wuhan University,Wuhan,430072,China
3.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China

Liu，Jia,Wang，Xin,Zhang，Leiyang,et al. Effective strategy to improve photocatalytic activity in concave Au NRs-Pt-CdS hetero-nanostructure[J]. Journal of Alloys and Compounds,2023,965.

Liu，Jia.,Wang，Xin.,Zhang，Leiyang.,Li，Chunchun.,Zhu，Guanjun.,...&Du，Hongliang.(2023).Effective strategy to improve photocatalytic activity in concave Au NRs-Pt-CdS hetero-nanostructure.Journal of Alloys and Compounds,965.

Liu，Jia,et al."Effective strategy to improve photocatalytic activity in concave Au NRs-Pt-CdS hetero-nanostructure".Journal of Alloys and Compounds 965(2023).