Tayser Sumer Gaaz, Abu Bakar Sulong, Abdul Amir H. Kadhum, Muneer Ba-Abbad and Ahmed A. Al-Amiery
الملخص الانجليزي
Investigates the enhancement of physical and chemical properties of natural nanotubes halloysite (HNTs) that has chemical formula of Al2Si2O5(OH)4 are unique and versatile using sulfuric acid at various experimental conditions. The findings obtained from the use of Fourier transform infrared spectroscopy (FT-IR) reveal that acid breaks down the crystal structure of HNTs before it changes into amorphous silica. Another finding reveals that X-ray diffraction (XRD) causes the H2SO4 to break down the crystal structure of HNTs and to charge into the structure amorphous silica. The reaction of the acid with both the outer and inner surfaces of the nanotubes causes the AlO6 octahedral layers to dissolve, which then leads to the break down and collapse of the tetrahedral layers of SiO4. The final product from this treatment is treated HNTs H2SO4 with characteristics for commercial use fixed micropore size distribution and as effective low-cost adsorbents. The maximum adsorption capacity for methylene blue is greater than 60 mgg−1 and the pH value can be used to control the adsorption capacity. Also, this treatment has been potentially identified for use in the production of biomedical applications.
تيسير سمير جعاز | Tayser Sumer Gaaz | 4286