Preparation, Characterization, and Photocatalytic Properties of Modified Red Mud

Table 1

The chemical composition of red mud and modified red mud.

Sample	Al2O3	SiO2	Fe2O3	TiO2	CaO	Others
Red mud (%)	26.22	20.52	5.71	5.3	17.28	24.97
Modified red mud (%)	18.34	17.89	2.86	6.79	7.36	50.00