Journal of Inorganic Materials ›› 2024, Vol. 39 ›› Issue (4): 383-389.DOI: 10.15541/jim20230457

Special Issue: 【信息功能】MAX层状材料、MXene及其他二维材料(202409)

• RESEARCH ARTICLE • Previous Articles     Next Articles

Sandwich Structured Ru@TiO2 Composite for Efficient Photocatalytic Tetracycline Degradation

WANG Zhaoyang1(), QIN Peng2, JIANG Yin1, FENG Xiaobo1, YANG Peizhi1(), HUANG Fuqiang3()   

  1. 1. Key Laboratory of Advanced Technique & Preparation for Renewable Energy Materials, Ministry of Education, Yunnan Normal University, Kunming 650500, China
    2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    3. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2023-10-07 Revised:2023-12-13 Published:2024-04-20 Online:2023-12-25
  • Contact: YANG Peizhi, professor. E-mail: pzhyang@hotmail.com;
    HUANG Fuqiang, professor. E-mail: huangfq@sjtu.edu.cn
  • About author:WANG Zhaoyang (1999-), male, Master candidate. E-mail: wang1143882613@163.com
  • Supported by:
    National Natural Science Foundation of China(U1802257);National Natural Science Foundation of China(12264057);Key Foundation of Basic Research of Yunnan Province(202201AS070023);“Yunnan Revitalization Talent Support Program” and “Spring City Plan” Introduction and Training Project of High-level Talent(2022SCP005)

Abstract:

TiO2 nanomaterials are widely used photocatalysts due to high photocatalytic activity, good chemical stability, low cost, and nontoxicity. However, its lower photon utilization efficiency is still limited by larger bandgap width and higher recombination rate between photon and hole. In this study, two-dimensional TiO2 nanosheets were synthesized via microetching, which were then inserted by ruthenium atoms to form an efficient photocatalyst Ru@TiO2 with sandwich structure. The surface morphology, electronic structure, photoelectric properties, and photocatalytic degradation performance of tetracycline hydrochloride of Ru@TiO2 sandwich structure were investigated using different measurements. Results indicated that the material’s photoresponse range extended from UV to visible- near-infrared regions, improving photon absorption and carrier separation efficiency while enhancing photocatalytic activity. Under simulated sunlight irradiation (AM 1.5 G, 100 mW·cm-2) for 80 min, sandwich structured Ru@TiO2 efficient photocatalyst exhibited superior degradation performance on tetracycline hydrochloride with a degradation efficiency up to 91.91%. This work offers an effective way for the construction of efficient TiO2 based photocatalysts.

Key words: layered titanium dioxide, ruthenium intercalation, photocatalysis, tetracycline hydrochloride

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