摘要
采用Sol gel湿化学工艺将水溶性的四磺化酞菁镍 (NiTSPc)均匀掺入SiO2 凝胶基质。考察SiO2 凝胶基质在溶胶 凝胶的转化过程中组织结构和粘度变化的相关规律及最终所获干凝胶孔结构的特征。对NiT SPc在此过程中电子吸收光谱的变化进行了系统的跟踪研究以考察其在溶胶 凝胶体系中的二聚行为 ,并结合复合体系微化学环境的改变对其进行了自洽解释。
We report here the preparation of nickle tetrasulfo-phthalocyanine (NiTSPc)-doped silica xerogel matrix obtained by sol-gel technique. The evolution of silica matrix's texture and the rate during the sol-gel process, as well as silica xerogel's pore structure were studied. Dimerization behavior of NiTSPc molecules was characterized by electronic absorption spectra, and changes in the absorption spectra were correlated with various stages of the sol-gel process. The results show that in the composites NiTSPc concurs in the forms of monomer and dimer, and dimerization is stronger during the latter stages. The reason is given from the change in the micro-environment in which NiTSPc existed during the sol-gel process.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2004年第5期561-564,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金(69890230
90101007)
福建省教育厅科技三项(K2001001)资助项目
