Effective utilization of useful components present in agricultural Bio-waste materials for different catalytic reactions is the main objective of this thesis book. Among several agricultural Bio-waste materials Rice Husk and Rice straw are maximumly available in Krishna district, Andhra Pradesh. Preparation of high surface area and pore volume initiated activated carbons and silica from Agricultural bio-mass materials like Rice husk(RH). Study of textural properties of AC's and Silica prepared from biowaste materials. Characterization of supports prepared by using XRD, FT-IR, Py-FTIR, TPR,...