In this study, Zr-pillared montmorillonite clays (Zr-PILCs) were synthesized using two different precursor materials: raw (CM) and sodium ion-saturated (Na-CM) at Zr/clay ratios (2.5, 5 10 mmol/g). To study the effect of Zr concentration clay pre-treatment with NaCl on pillaring, modified samples characterized in detail X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), t...

red mud (rm), a waste tailing from alumina production, (as an important environmental problem), can be used as a strong absorbent pollutant. in this study, the modified red mud (mrm) and pillared clay (pilc) were used for the removal of arsenate from water. the modified red mud (mrm) and pilc complex were characterized using xrd, sem and xrf microanalysis. the adsorption of arsenate on modified...

High specific surface area, large micropore volume, concentration of acid sites, and increased density sorption sites make montmorillonite pillared as an excellent adsorbent catalyst to remove contaminants from wastewater. The studies are aimed at establishing the adsorption catalytic activity Fe based on Krantau Navbakhor bentonite in relation dyes solutions. It has been shown that introductio...

This work describes the synthesis and characterization of pillared clays using a new pillaring method: the reuse of the pillaring solution. First, an Al pillared clay (PILC) was synthesized, and after filtration, the pillaring agent was stored and reused for an additional three pillaring procedures (P1, P2, and P3). The filtered pillaring solution was stored for one year and then reused for one...

Shape selective xylene production is very important in the polymer industry because of its extensive use as raw material for monomer preparation. The acidity associated with the Lewis and Broensted centers present in the pillars interlayered clay and its textural properties allows good catalytic activity and shape selectivity toward p-xylene production. So, in the present study, ultrasonic and ...