化工学报 ›› 2012, Vol. 63 ›› Issue (4): 1070-1075.DOI: 10.3969/j.issn.0438-1157.2012.04.012

• 催化、动力学与反应器 • 上一篇    下一篇

流化床CVD法原位合成CNTs-Ni-TiO2及其光催化性能

陆金东,陈爱平,马磊,何洪波,倪道克,李春忠   

  1. 华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海 200237
  • 收稿日期:2011-09-13 修回日期:2012-01-04 出版日期:2012-04-05 发布日期:2012-04-05
  • 通讯作者: 陈爱平

Synthesis of CNTs-Ni-TiO2 nanocomposites by in-situ fluidized bed CVD and its photocatalytic activity

LU Jindong, CHEN Aiping,MA Lei, HE Hongbo, NI Daoke, LI Chunzhong   

  1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering,East China University of Science and Technology, Shanghai 200237,China
  • Received:2011-09-13 Revised:2012-01-04 Online:2012-04-05 Published:2012-04-05

摘要: 采用柠檬酸修饰溶胶-凝胶法制备NiO-TiO2催化剂,然后于流化床反应器中直接在NiO-TiO2表面原位生长多壁碳纳米管,制备出CNTs-Ni-TiO2复合光催化剂。采用XRD、SEM、TG、BET、PL荧光光谱等方法对制备的样品进行了表征,以亚甲基蓝降解为模型反应,考察了复合催化剂在紫外线下的光催化性能。结果表明,在NiO含量为5%的NiO-TiO2催化剂上生长CNTs后得到的CNTs-Ni-TiO2复合材料具有较高的光催化活性。

关键词: 溶胶-凝胶法, 流化床, CNTs, 光催化, TiO2, 化学气相沉积

Abstract: NiO-TiO2 catalyst was prepared with the modified citric acid sol-gel method.Carbon nanotubes(CNTs)was directly grown on the surface of the NiO-TiO2 by fluidized bed chemical vapor deposition(CVD).The prepared CNTs-Ni-TiO2 nanocomposite photocatalysts were characterized by XRD, SEM, TG, BET and PL.The photocatalytic performance of CNTs-Ni-TiO2 was evaluated by degradation of methylene blue under UV light.The results indicated that CNTs-Ni-TiO2 nanocomposite showed the highest degradation activity when the dosage of NiO was 5%.

Key words: sol-gel, fluidized bed, CNTs, photocatalysis;TiO2;chemical vapor deposition

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