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In order to realize hydrogen generation under visible light, novel CdS/TiO_2 nanotubes arrays are de- veloped by electrochemical anodization of Ti in 0.15 mol/L NH_4F + 0.08mol/L H_2C_2O_4 electrolyte. The diameter of the nanotube is 80―100nm and the length is approximately 550 nm. The CdS nano-particles are deposited on the TiO_2 nanotubes arrays by chemical bath deposition (CBD) in the ammonia-thiourea system. A 300W Xe lamp is used as the light source, CdS/TiO_2 nanotube arrays are used as the photoanode with the application of 1.0V bath voltage, and 0.1 mol/L Na_2S + 0.04 mol/L Na_2SO_3 solution is used as the electrolyte, then the rate of photoelectrocatalytic hydrogen generation is 245.4 μL/(h·cm~2). This opens new perspectives for photoelectrocatalytic hydrogen generation by using CdS/TiO_2 nanotubes arrays.
In order to realize hydrogen generation under visible light, novel CdS / TiO 2 nanotubes arrays are de- veloped by electrochemical anodization of Ti in 0.15 mol / L NH 4 F + 0.08 mol / L H 2 C 2 O 4 electrolyte. The diameter of the nanotube is 80-100 nm and the The CdS nano-particles are deposited on the TiO 2 nanotubes arrays by chemical bath deposition (CBD) in the ammonia-thiourea system. A 300W Xe lamp is used as the light source, CdS / TiO 2 nanotube arrays are used as the photoanode with the application of 1.0V bath voltage, and 0.1 mol / L Na 2 S + 0.04 mol / L Na 2 SO 3 solution is used as the electrolyte, then the rate of photoelectrocatalytic hydrogen generation is 245.4 μL / (h · cm -2). This opens new perspectives for photoelectrocatalytic hydrogen generation by using CdS / TiO 2 nanotubes arrays.