Thermogravimetric analysis of layered double hydroxides with chloramphenicol and salicylate in the interlayer space
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The thermal behavior of the new inorganic-organic nanohybrid materials obtained by intercalation of chloramphenicol and salicylate into layered double hydroxides (LDHs) by direct synthesis method, anion exchange reaction and the reconstruction method was evaluated by dynamic thermogravimetric analysis in air, at heating rates of 5°C min−1. The XRD patterns of the samples are characteristic for those of well crystallized solids with layered double hydroxide structures. The FTIR spectroscopy results show the presence of the organic compound within the network structure of the synthesized LDHs. The kinetic parameters (reaction order (n) apparent activation energy (E a) and pre-exponential factor (lnA) were calculated by the Coats-Redfern method. The compensation effects were determined.
Keywordschloramphenicol intercalation layered double hydroxides salicylate thermal degradation
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