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Preparation and Catalytic Properties of Phthalocyanine Derivatives/Hydrotalcite-like Compounds

Author: SunLiNing
Tutor: WangMei
School: Dalian University of Technology
Course: Fine Chemicals
Keywords: Hydrotalcite Metal phthalocyanine 4,4 '- dinitro - stilbene -2,2' - disulfonic acid Dibenzothiophene Oxidative Desulfurization
CLC: O643.36
Type: Master's thesis
Year: 2010
Downloads: 104
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Abstract


The hydrotalcite-based compound is an anionic clay having a layered structure , which has the aperture tunable degeneration and interlayer anion exchangeability, using this feature need to be based different anion is introduced into the interlayer of the hydrotalcite , hydrotalcite intercalation assembly . Hydrotalcite obtained oxide calcined at a certain temperature has a large specific surface area , but has the memory effect , in the aqueous solution is able to rebuild before firing the layered structure . Due to the special nature of the hydrotalcite-like compounds , in recent years , it has wide application in the field of carrier , catalysis and functional materials . The metal phthalocyanine is a class of macrocyclic compounds with similar structure and porphyrin . It has some characteristics of the enzyme -catalyzed catalytic oxidation is more and more people pay attention to . Hydrotalcite load CI Direct Blue 199 as the catalyst , catalytic oxidation of 4 - nitro- p - toluene -sulfonic acid (NTS acid) Synthesis of 4,4 '- dinitro - stilbene -2,2 ' - disulfonic acid (DNS acid ). The hydrotalcite load CI Direct Blue 199 is a dual-function catalyst both a redox bit there alkaline bit , it has to be easily recovered , and no heavy metal pollution, etc. . Using X-ray diffraction , infrared spectroscopy , thermal gravimetric method than the surface area of ??the samples were characterized . Changing the experimental parameters in order to study the performance of the catalyst , a series of experiments on the reaction of the NTS the acid oxidation synthesis DNS acid . The results show that the use of this catalyst NTS acid conversion rates of up to 97.0%, and the yield up to 83.1%, recovery experiments show that the catalyst is stable and can be reused . This article also prepared by different methods four sulfonated phthalocyanine copper / cobalt intercalation of pillared hydrotalcite ( CuPcTs -LDHs CoPcTs -LDHs ) . XRD and infrared spectroscopy the characterization proved CuPcTs / CoPcTs anion vertical enter the hydrotalcite layer . And as catalyst CoPcTs-LDHs , dibenzothiophene (dibenzothiophene, DBT) analog sulfide , a preliminary exploration of the O2 oxidative desulfurization . The results show that CoPcTs-LDHs better removal of DBT . At a temperature of 120 ° C , O2 pressure of 0.1 MPa , reaction 2 h , DBT removal rate of 96.8% .

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CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Chemical kinetics,catalysis > Catalytic > Catalyst
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