Preparation of Na₂Ti₃O₇/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Figure 1

(a) Reaction product of Ti and H₂O₂ (30%). (b) Reaction product of Ti and NaOH (10 mol/L). (c) Reaction product of Ti, H₂O₂, and NaOH before washing. (d) Reaction product of Ti, H₂O₂, and NaOH after washing, being dried, and grinding. (e) Add hydrochloric acid in reaction product of Ti, H₂O₂, and NaOH (pH < 7).

(a)

(b)

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(d)

(e)