摘要
通过结合固相反应与水热法制得一种新型的光催化剂Na2Ta2O6,并对其进行了XRD、SEM表征。由紫外可见漫反射光谱推测其禁带宽度约为4.6 eV,并对其在紫外光区下光催化降解碱性藏花红溶液的行为进行了研究。发现其具有好的结晶性、特殊的棒状结构以及较好的光催化活性。
A novel photocatalyst, Na2Ta2O6 was prepared by a combined solid -state reaction and hydrothermal approach. The sam pies were characterized by powder X - ray diffraction (XRD). The morphology and particle size of the product were analyzed by scanning electron microscope. The band gap of the Na2Ta2O6 was about 4. 6eV based on UV - vis diffuse reflectance spectroscopy. Also, it showed good crystallinity, special structure and higher photocatalytic activity even without cocatalysts under UV - light irradiation by model experiment of degradation of the solution of Safranine T.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2006年第8期903-906,共4页
Chemical Research and Application
基金
国家自然科学基金(20171018)项目资助
广东省科技计划项目(2003C103018)项目资助
广东省教育厅人才工程基金(Q02059)项目资助
关键词
钽酸盐
光催化剂
水热
tantalate
photocatalyst
hydrothermal