RESEARCH ON THE POSSIBILITY OF METHYLENE BLUE DEGRADATION ON SYNTHESIZED MATERIALS Fe-Ti/HYDROTAlCITE UNDER LED LIGHT

Abstract

Samples of Fe-Ti-Hydrotanxite materials modified hydrotalcite by Fe³⁺ and Ti⁴⁺, synthesized by the method of co-precipitation from nitrate precursors of Al³⁺, Zn²⁺, Fe³⁺ and Ti (tetraisopropyl octotitanate (TIOT)). Sets of samples charactered by modern physical analysis methods: XRD diagram, TEM image, N₂ adsorption/desorption isotherms, UV-Vis DRS spectrum. Their adsorption and photocatalytic activities assessed by adsorption efficiency and degradation methylene blue in water. Results show that FeTiH material (Fe: Ti = 0.5 : 1.0) has the highest photodegradation under LED light of 30 W for methylene blue. However, the synthesized samples FeTiH (Fe: Ti = 0.5: 4.0 and 0.5: 5.0) have excellent adsorption capacities to methylene blue in water.