Abstract：Nickle phthalocyanine(NiPc) and Nickle tetrasulfo-phthalocyanine (NiTSPc) were introduced respectively into silica gel matrix by sol-gel technique. Composites were produced and their UV/Vis spectra were measured. The results show that the introduction of soluble tetrasulfo-substituents can greatly increase the solubility of phthalocyanine molecule, which is helpful for the steady co-existence of phthalocyanine in sol-gel hybrid and therefore beneficial to the production of homogeneous composite.
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