化学学报 ›› 2004, Vol. 62 ›› Issue (24): 2398-2402. 上一篇    下一篇

研究论文

TiO2多孔纳米固体对罗丹明B的热催化降解作用

刘秀琳1, 余丽丽2, 徐红燕1, 李梅1, 王成建2, 蒋民华1, 崔得良1   

  1. 1. 山东大学晶体材料国家重点实验室;
    2. 山东大学物理与微电子学院, 济南, 250100
  • 投稿日期:2004-03-16 修回日期:2004-06-08 发布日期:2014-02-17
  • 通讯作者: 崔得良,E-mail:cuidl@sdu.edu.cn E-mail:cuidl@sdu.edu.cn
  • 基金资助:
    国家自然科学基金(Nos.50272036,90101016,90206042)、教育部科学技术研究重点项目以及博士点基金(No.20040422057)资助项目.

Degradation of RhB Catalyzed by TiO2 Bulk Porous Nanosolids

LIU Xiu-Lin1, YU Li-Li2, XU Hong-Yan1, LI Mei1, WANG Cheng-Jian2, JIANG Min-Hua1, CUI De-Liang1   

  1. 1. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100;
    2. School of Physics & Microelectronics, Shandong University, Jinan 250100
  • Received:2004-03-16 Revised:2004-06-08 Published:2014-02-17

以我们研制的体块TiO2多孔纳米固体为原料,通过强制交换方法,将罗丹明B (RhB)组装进TiO2多孔纳米固体的孔道中制备了TiO2/RhB复合材料,用扫描电子显微镜、压汞仪、红外吸收光谱和可见吸收光谱等方法对样品进行了表征.测试结果表明,TiO2多孔纳米固体的比表面积为60.6 m2/g,主要孔径分布在5~13 nm很窄的范围内.另外,我们从实验上观察到了TiO2多孔纳米固体在无光照的情况下对RhB具有催化降解作用,而且交换时间、交换温度等因素对这种降解作用有明显的影响.

关键词: 体块TiO2多孔纳米固体, 比表面积, 强制交换方法, 降解作用

Using bulk TiO2 porous nanosolids and Rhodamine B (RhB) as the starting materials, TiO2/RhB composite was synthesized by assembling RhB into the channels of TiO2 porous nanosolids. The properties of the composite were characterized by scanning electron microscopy, mercury intrusion porosimetry, Fourier transformation infrared spectroscopy and visible light absorption spectroscopy. The results showed that the specific surface area and major pore radius distribution of TiO2 porous nanosolids were 60.6 m2/g and 5~13 nm, respectively. In addition, the catalytic effect of TiO2 porous nanosolids on the degradation of RhB was also investigated in this paper. It was found that, the catalytic efficiency of TiO2 porous nanosolids was affected by both temperature and time of exchange process.

Key words: bulk TiO2 porous nanosolid, specific surface area, exchange process, degradation