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      https://www.ias.ac.in/article/fulltext/boms/044/0155

    • Keywords

       

      Intercalation; layered double hydroxide; zinc layered hydroxide; salicylic acid.

    • Abstract

       

      Intercalation of salicylic acid (SA) into the interlayer region of zinc/aluminium-layered double hydroxides(LDHs) and zinc layered hydroxides (ZLH) was studied. Fourier transform infrared-attenuated total reflectance (FTIRATR) shows the presence of nanocomposites peak at 3381 cm$^{-1}$ for OH group, 1641 and 1640 cm$^{-1}$ C=O vibration mode indicates that SA is intercalated between the layered structures. Powder X-ray diffraction (PXRD) analysis shows the presence of new peak at lower region of 2${\theta}$ with calculated basal spacing of 16.3 A° for LDSA and 16.15 A° for ZLSA.CHNS analysis stated that the percentage of carbon was increased from 0 to 15.09% in LDSA and 21.85% in ZLSA.Thermogravimetric analysis/derivative thermogravimetric (TGA/DTG) test shows that SA was thermally stable due toincrease in decomposition temperature from 204$^{\circ}$C for pure salicylic compound to 405$^{\circ}$C in LDSA and 426$^{\circ}$C in ZLSA,respectively. Field emission scanning electron microscope (FESEM) images show that the nanocomposites are more compact, flaky non-porous, large agglomerates with smooth surfaces of the intercalated compound. Controlled release was successful which follows pseudo-second order from phosphate > carbonate > chloride.

    • Author Affiliations

       

      NURAIN ADAM1 2 SHEIKH AHMAD IZADDIN SHEIKH MOHD GHAZALI2 NUR NADIA DZULKIFLI2 CIK ROHAIDA CHE HAK3

      1. Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia
      2. Faculty of Applied Sciences, Universiti Teknologi MARA, Kuala Pilah Campus, Pekan Parit Tinggi, 72000 Kuala Pilah, Malaysia
      3. Material Technology Group, Industrial Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Malaysia
    • Dates

       
  • Bulletin of Materials Science | News

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