A New Application of Nanocrystal In2S3 in Efficient Degradation of Organic Pollutants under Visible Light Irradiation

作者：He, Yunhui; Li, Danzhen^*; Xiao, Guangcan; Chen, Wei; Chen, Yibin; Sun, Meng; Huang, Hanjie; Fu, Xianzhi

来源：Journal of Physical Chemistry C, 2009, 113(13): 5254-5262.

DOI：10.1021/jp809028y

• PHOTOCATALYTIC DECOMPOSITION
• MASS-SPECTROMETRY
• AZO DYES
• WATER
• TIO2
• TITANIUM
• DISPERSIONS
• OXIDATION
• OXIDES
• PHOTODEGRADATION

The nanocrystal In2S3 (nc-In2S3) has been used as a visible light active photocatalyst. The optical absorption indicated a narrow band gap (E-g =1.9 eV) for nc-In2S3. Compared with TiO2-xNx, the decomposition of methyl orange using nc-In2S3 revealed enormously enhanced visible light activity. The center dot OH during the photocatalytic degradation process was detected by tereplithalic acid photoluminescence probing technique (TA-PL). The organic intermediate products were successfully separated by liquid chromatogram and subsequently identified by an electrospray ionization (ESI) mass spectral technique. The possible photocatalytic mechanism is presented.

• 出版日期2009-4-2
• 单位福州大学