单一相板钛矿TiO2的制备及光催化性能研究
Synthesis and Photocatalytic Properties of Single Crystalline Brookite TiO2
DOI: 10.12677/NAT.2019.91002, PDF,  被引量   
作者: 谢 耀*, 邹云玲, 张高尚, 晏 杲, 王小艺, 黄珈铭：中国民航大学理学院，天津
关键词: TiO2；板钛矿；水热法；光催化；TiO2； Brookite； Hydrothermal Method； Photocatalysis
摘要: 以四氯化钛(TiCl4)、尿素、乳酸钠为反应物，采用水热法制备了单一相板钛矿TiO2。利用X射线衍射仪、拉曼光谱仪、扫描电镜、透射电镜、比表面积分析仪等手段对所得样品进行了结构和形貌分析。以亚甲基蓝溶液为目标降解物，在紫外灯照射下测试了所得样品的光催化活性。实验结果表明，所得样品为长约60~80 nm、宽约20~30 nm的板钛矿TiO2纳米片。在紫外灯照射40 min后，所得单一相板钛矿TiO2对亚甲基蓝溶液的脱色率为94.5%，明显高于相应的商业级TiO2 (P25) (86.7%)。
Abstract: Single crystalline brookite TiO2 was synthesized by hydrothermal method using titanium chloride, urea and sodium lactate as starting materials. X-ray powder diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, Brunauer Emmett and Teller surface area analysis were utilized to characterize the as-synthesized sample. Photocatalytic activity of the as-synthesized sample was evaluated by photodegradation of methylene blue under ultraviolet light irradiation. Experimental results showed that brookite TiO2 nanosheets were ob-tained with the length of 60 - 80 nm and the width of 20 - 30 nm. The as-prepared single crystalline brookite TiO2 nanosheets showed high photocatalytic activity to methylene blue and the corres-ponding degradation rate of methylene blue (10 mg/L) reached to 94.5% after UV light illumination for 40 min, much higher than that of P25 investigated under the same conditions (86.7%).
文章引用：谢耀, 邹云玲, 张高尚, 晏杲, 王小艺, 黄珈铭. 单一相板钛矿TiO2的制备及光催化性能研究[J]. 纳米技术, 2019, 9(1): 10-16. https://doi.org/10.12677/NAT.2019.91002

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