摘要
采用电化学沉积和涂覆法将窄带半导体材料Cu_(2)O与TiO_(2)复合制备了Cu_(2)O-TiO_(2)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、TiO_(2)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Cu_(2)O-TiO_(2)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。
Cu_(2)O-TiO_(2) composite films were prepared by combining narrow-band semiconductor material Cu_(2)O and TiO_(2) 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,TiO_(2) loading,methanol solution concentration and pH on hydrogen production performance were investigated.The results show that the prepared Cu_(2)O-TiO_(2) 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.
作者
王熙
蔡奕璇
萧子君
何春
李来胜
WANG Xi;CAI Yixuan;XIAO Zijun;HE Chun;LI Laisheng(School of Environment, South China Normal University, Guangzhou 510006;Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology/School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006)
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2022年第3期8-14,共7页
Journal of South China Normal University(Natural Science Edition)
基金
广东省自然科学基金项目(2022A1515011377)
广东省环境污染控制与修复技术重点实验室开放基金资助项目(2020B1212060022)。
