“…Placing metal oxides and other functional groups in the porous carbon substrate causes chemical activation and its high catalytic ability in promoting chemical reactions. 33 Peanut shell as bio-waste material was successfully used for the design of various catalysts which applied in different chemical process such as cycloaddition of epoxides with CO 2 , 33 degradation of organic pollutant, 34 production aromatic rich monomer compounds, 35 synthesis of 5-hydroxymethylfurfural from glucose, fructose, cellulose and agricultural wastes, 36 esterication of cyclohexene with formic acid 37 and synthesis of 1,2,3-triazoles. 38 Herein, we have used peanut shell as bio-waste for the preparation of porous carbon as a template for the placement of nano titanium dioxide on it to give TiO 2 /porous carbon nanocomposite (TiO 2 /PCN).…”