Journal of Inorganic Materials ›› 2019, Vol. 34 ›› Issue (1): 109-113.doi: 10.15541/jim20180163

Special Issue: 环境材料

• RESEARCH PAPER • Previous Articles     Next Articles

One-step Synthesis of Black TiO2 Composite Coating on Glass by Pulsed Laser Spraying

Li-Xian ZHANG1, Yan-Qin LIANG1, Shao-Dan WANG1, Hong LU1, Ai-Feng LIU2, Qiang WEI1,3()   

  1. 1. Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
    2. First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
    3. School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
  • Received:2018-04-16 Revised:2018-06-13 Online:2019-01-21 Published:2018-12-17
  • About author:ZHANG Li-Xian. E-mail: naturematerials@163.com

Abstract:

To achieve effective load of black TiO2 nanoparticles and improve the practical application ability, the pulsed laser spraying was proposed. The composite coating was prepared on quartz glass substrate, which consisted of amorphous molecular sieve and rutile TiO2 nanocrystals. The surface morphology of the composite coating was characterized, and a series of test about composite coating powder was conducted including absorption properties, phase structure, chemical valence, and photocatalytic properties. The results show that the coating is porous structure packed with 2-5 μm ball and has strong absorptive capacity in the visible region. In the process of pulsed laser sputtering, the molecular sieve changed to amorphous structure, and TiO2 changed from anatase to rutile type. Ti4+ ion was reduced to Ti3+ ion, which resulted in reduced band-gap. The pulsed laser spraying technology achieves the fast load of the black nano TiO2, which still has good photocatalytic ability under the full spectrum and visible light conditions.

Key words: nanosecond pulsed laser, sputtering spraying, black TiO2, nanomaterial load.

CLC Number: 

  • TQ134