论文部分内容阅读
为了实现利用可见光高效产氢,研究开发了具有可见光响应的CdS/TiO2纳米管阵列光催化剂.利用电化学阳极氧化法,在0.15mol/LNH4F和0.08mol/LH2C2O4的电解液中用钛片制备TiO2纳米管阵列,纳米管管径为80~100nm,管长约为550nm;在氨-硫脲体系中通过水浴化学池沉积将CdS纳米颗粒复合在TiO2纳米管上.以300W氙灯为光源,CdS/TiO2纳米管阵列(2×54mm×100mm)作为光阳极,外加1.0V槽电压,0.1mol/LNa2S和0.04mol/LNa2SO3为电子给体,光电产氢速率达到245.4μL/(h·cm2),表明CdS/TiO2纳米管阵列是一种有前景的光催化产氢材料.
In order to realize the efficient hydrogen production by using visible light, a CdS / TiO2 nanotube array photocatalyst with visible light response has been developed.Using electrochemical anodic oxidation method, TiO 2 was prepared from titanium dioxide in 0.15mol / LNH4F and 0.08mol / LH2C2O4 electrolyte The nanotube arrays have nanotubes with diameter of 80-100nm and tube length of about 550nm.The CdS nanoparticles were deposited on TiO2 nanotubes in a bath of ammonia-thiourea by using a 300W xenon lamp as a light source and CdS / TiO2 nanotube array (2 × 54mm × 100mm) was used as the photoanode, and the voltage of 1.0V was applied. The rate of photoelectric hydrogen production reached 245.4μL / (h · cm2) with 0.1 mol / L Na 2 S and 0.04 mol / L Na 2 SO 3. CdS / TiO2 nanotube arrays are a promising photocatalyst for hydrogen production.