An arrangement of mesopores with large and uniform pore size of around 50 nm was clearly observed when the sample was calcined at 450 and 5508C (Figure 2a-1 and a-2).
An arrangement of mesopores with large and uniform pore size ofaround 50 nm was clearly observed when the sample was calcinedat 450 and 5508C (Figure 2a-1 and a-2).