摘要
用沸石合成法制备了ＣｕＣｌ１４Ｐｃ/Ｙ分子筛纳米复合材料(简称为ＣｕＣｌ１４Ｐｃ/ｎａｎｏ－Ｙ),考察了合成条件对纳米复合材料的粒度影响．用ＸＲＤ、ＩＣＰ、ＴＧ－ＤＴＡ、ＴＥＭ、ＦＴＩＲ、ＵＶ－ｖｉｓ及催化反应等对其性能作了表征．结果表明:铜酞菁(ＣｕＣｌ１４Ｐｃ)经过水热晶化后,部分被分装在纳米Ｙ型分子筛的空腔中,其催化氧化性能较普通ＣｕＣｌ１４Ｐｃ/Ｙ分子筛复合材料有很大提高．
Well-crystallized CuCl14PC/zeolite Y nano-composite of average particle size about 60nm (denoted as CuCl14PC/nano-Y) was successfully synthesized via zeolite synthesis method. The integrity of the nano-zeolite host was confirmed by XRD and TEM. The CuCl14PC complexes entrapped in the nano-hosts were characterized by XRD, TEM, FTIR, TG/DTA, ICP, and UV-vis. CuCl14PC/y samples with different particle sizes in micro-scale were also synthesized by adjusting the temperature and water content. CuCl14PC in nano-Y exhibits the catalytic activity 3.1 times higher than CuCl14PC in normal Y with particle size of 550nm for the liquid phase oxidation of cyclohexane with aqueous H2O2 due to bigger surface areas and shorter diffusion pathways.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第3期539-544,共6页
Journal of Inorganic Materials
基金
国家自然科学基金(29973028)
国家重点基础研究发展现划项目(G200008009)
