王熙, 蔡奕璇, 萧子君, 何春, 李来胜. Cu2O-TiO2复合膜的制备及其光催化与产氢性能[J]. 华南师范大学学报(自然科学版), 2022, 54(3): 8-14. doi: 10.6054/j.jscnun.2022037
引用本文: 王熙, 蔡奕璇, 萧子君, 何春, 李来胜. Cu2O-TiO2复合膜的制备及其光催化与产氢性能[J]. 华南师范大学学报(自然科学版), 2022, 54(3): 8-14. doi: 10.6054/j.jscnun.2022037
WANG Xi, CAI Yixuan, XIAO Zijun, HE Chun, LI Laisheng. The Preparation of Cu2O-TiO2 Composite Films and Their Properties of Photocatalytic and Hydrogen Production[J]. Journal of South China Normal University (Natural Science Edition), 2022, 54(3): 8-14. doi: 10.6054/j.jscnun.2022037
Citation: WANG Xi, CAI Yixuan, XIAO Zijun, HE Chun, LI Laisheng. The Preparation of Cu2O-TiO2 Composite Films and Their Properties of Photocatalytic and Hydrogen Production[J]. Journal of South China Normal University (Natural Science Edition), 2022, 54(3): 8-14. doi: 10.6054/j.jscnun.2022037

Cu2O-TiO2复合膜的制备及其光催化与产氢性能

The Preparation of Cu2O-TiO2 Composite Films and Their Properties of Photocatalytic and Hydrogen Production

  • 摘要: 采用电化学沉积和涂覆法将窄带半导体材料Cu2O与TiO2复合制备了Cu2O-TiO2复合材料薄膜,并通过扫描电子显微镜(SEM)、X射线衍射(XRD)、荧光光谱(PL)、紫外-可见漫反射光谱(UV-Vis DRS)进行了表征。以甲醇溶液为模拟废水进行产氢性能的测试,探究了光源、TiO2质量分数、甲醇体积分数、pH对产氢性能的影响。实验表明:制备的Cu2O-TiO2复合薄膜材料可直接在太阳光下催化水中甲醇产氢,且甲醇体积分数越高产氢量越大,在甲醇体积分数为50%且在偏酸性时产氢量最大。

     

    Abstract: Cu2O-TiO2 composite films were prepared by combining narrow-band semiconductor material Cu2O and TiO2 with the electrochemical deposition and coating methods, and characterized with SEM, XRD, PL and UV-Vis DRS. The hydrogen production performance was tested with methanol solution as simulated wastewater. The effects of light source, TiO2 loading, methanol solution concentration and pH on hydrogen production performance were investigated. The results show that the prepared Cu2O-TiO2 composite films can directly catalyze the hydrogen production of organic matter in water under sunlight. The higher the concentration of organic matter, the higher the hydrogen production. When the concentration of methanol is 50%, the hydrogen production is highest. In addition, the hydrogen production is higher when it is acidic.

     

/

返回文章
返回