【作者】 于爱敏； 沈雯雯； 苗双； 孙晓红； 章福祥； 关乃佳；

【Author】 YU Ai-min~1 SHEN Wen-wen~2 MIAO Shuang~1 SUN Xiao-hong~1 ZHANG Fu-xiang~1 GUAN Nai-jia~1 (1.Institute of New Catalytic Materials Science,College of Chemistry,Nankai University,Tianjin,300071,China; 2.Department of Chemistry,Zhengzhou University,Zhengzhou,450000,China)

【机构】 南开大学化学学院新催化材料科学研究所； 郑州大学化学系；

【摘要】 以低温溶剂热法合成的 Cr,N-共掺杂的 TiO₂为前驱体,采用水热法合成了可见光响应 Cr.N-共掺杂钛酸盐纳米管;采用 XRD、TEM、BET 等手段对其结构进行了表征,并采用 XPS、UV-vis 等手段对 Cr、N 的存在方式和样品的可见光响应进行了测定。结果表明,采用这种方法合成的可见光响应 Cr,N-共掺杂钛酸盐纳米管具有6～7 nm 的均一孔径和较大的比表面积（400 m²/g）,并且具有钛酸盐的典型结构特征;Cr 和 N 分别以 Cr（Ⅲ）和 O-Ti-N 的状态存在;合成的样品具有比离子交换法和未交换样品更强的可见光响应。更多还原

【Abstract】 Cr,N-codoped tiatanate nanotubes with visible-light response were synthesized by hydrothermal process by using Cr,N-codoped TiO₂ as precursor.The as-synthesized sample was characterized by XRD,TEM,BET,XPS and UV-vis to obtain the physical properties,the state of the Cr and N and the intensity of visible light response.It is confirmed from the XRD,TEM,BET results that the as-synthesized sample showed high quality uniform pore size of 10 nm and high BET surface of 400 m²/g.The result of the XPS showed the Cr presented as Cr（Ⅲ） meanwhile the N presented as O-Ti-N in the titanate nanotubes.From the UV-vis spectra,it was detected that the Cr,N-codoped tiatanate nanotubes showed higher visible-light response than that of the Cr exchanged titanate nanotubes.更多还原