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Modification of TiO2 nanotubes arrays by CdS and their photoelectrocatalytic hydrogen generation properties

  • Brief Communication
  • Environmental Science
  • Published:
Chinese Science Bulletin

Abstract

In order to realize hydrogen generation under visible light, novel CdS/TiO2 nanotubes arrays are developed by electrochemical anodization of Ti in 0.15 mol/L NH4F + 0.08 mol/L H2C2O4 electrolyte. The diameter of the nanotube is 80–100 nm and the length is approximately 550 nm. The CdS nano-particles are deposited on the TiO2 nanotubes arrays by chemical bath deposition (CBD) in the ammonia-thiourea system. A 300 W Xe lamp is used as the light source, CdS/TiO2 nanotube arrays are used as the photoanode with the application of 1.0 V bath voltage, and 0.1 mol/L Na2S + 0.04 mol/L Na2SO3 solution is used as the electrolyte, then the rate of photoelectrocatalytic hydrogen generation is 245.4 μL/(h·cm2). This opens new perspectives for photoelectrocatalytic hydrogen generation by using CdS/TiO2 nanotubes arrays.

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Authors and Affiliations

  1. Institute of Environmental Pollution Control Technologies, Xixi Campus, Zhejiang University, Hangzhou, 310028, China

    JianLing Zhang, XingWang Zhang & LeCheng Lei

Authors
  1. JianLing Zhang
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  2. XingWang Zhang
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  3. LeCheng Lei
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Corresponding author

Correspondence to LeCheng Lei.

Additional information

Supported by the National Natural Science Foundation of China (Grant Nos. 90610005, 20336030, 20576120 and U0633003), the National “863” Program (Grant No. 2007AA06Z339), and Science and Technology Bureau of Zhejiang Province (Grant No. 2007C13061)

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Zhang, J., Zhang, X. & Lei, L. Modification of TiO2 nanotubes arrays by CdS and their photoelectrocatalytic hydrogen generation properties. Chin. Sci. Bull. 53, 1929–1932 (2008). https://doi.org/10.1007/s11434-008-0258-9

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  • DOI: https://doi.org/10.1007/s11434-008-0258-9

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