The thermogravimetric analysis (TGA) or thermogravimetry
(TG) of all samples was carried out using a Perkin Elmer thermogravimetric
module Pyris 1 TGA. TG and DTG curves were
obtained under a dynamic atmosphere of synthetic air (flow rate of
35 mL min−1) heating rate of 10 ◦C min−1 from 30 to 900 ◦C with a
sample mass of 5.0 mg in a ceramic pan (50 L).