Thermo-Kinetic Study of Piperazine Immobilized Silica Surface |
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| Authors: | Varun Kumar Sing Souvik Sur Mohd Musharraf Ratan Kumar Dey Sanjay Kumar Swain Suman Shekhar |
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| Institution: | 1. Department of Chemistry, Faculty of Engineering Teerthanker Mahaveer University, Moradabad, U.P., 244001 India;2. Research & Development, Cell Teerthanker Mahaveer University, Moradabad, U.P., 244001 India;3. Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, 835205 India;4. Central Instrumentation Facility, Birla Institute of Technology Mesra, Ranchi, Jharkhand, 835215 India;5. Daudnagar College, Daudnagar (Aurangabad), Magadh University, Bodhgaya, Bihar, 824113 India |
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| Abstract: | In the present study, the degradation process of piperazine (PP) immobilized silica gel (SiPP) is investigated under dynamic conditions. The degradation of SiPP is studied with thermogravimetric analyzer (TGA). The kinetics of degradation process is analyzed by Kissinger method, Flynn–Wall–Ozawa's (FWO) method, and Deconvolution method. It is found that degradation of SiPP can be described by parallel independent two-portion process model, which includes two processing state of the system (marked by processes 1 and 2), where process 1 and 2 can be attributed to decomposition processes of organic moiety attached on silica surface. The apparent activation energy (Ea) is calculated by Flynn–Wall–Ozawa's (FWO) method and deconvolution method. |
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| Keywords: | activation energy piperazine silica gel thermal kinetics |
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