Fig. 3 | Scientific Reports

Fig. 3

From: Metal-free thiadiazole–triazine porous polymer modified planar electrodes for electrochemical Hg(II) detection in water

Fig. 3

Physicochemical characterization of TDA-Trz-POP. (A) FT-IR spectra showing Successful covalent Linkage between cyanuric chloride and 2,5-dimercapto-1,3,4-thiadiazole.; (B) Powder X-ray diffraction (XRD) pattern indicating the amorphous nature of TDA-Trz-POP, consistent with the cross-linked polymeric structure; (C)Nitrogen adsorption–desorption isotherm recorded at 77 K, showing a Type I profile characteristic of microporous materials. Inset: pore size distribution derived from non-local density functional theory (NLDFT), revealing an average pore diameter of ~ 1.25 nm; (D) Thermogravimetric analysis (TGA) in air, illustrating thermal stability up to 260 °C.

Back to article page