Tailoring visible-light active TiO2/cellulose nanocomposites with controlled crystalline structure for enhanced photocatalytic performance

Effect of H₂SO₄ concentration on crystalline structure of TiO₂ on cellulose

TiO₂ on cellulose support was fabricated through an in situ hydrolysis process. Titanium oxysulfate is a precursor that can be dissolved in water and acidic conditions. Thus, the effect of H₂SO₄ concentration, ranging from 0 to 10% wt on the TiO₂ phase, was investigated by setting TiOSO₄ concentration, hydrolysis temperature, and time to be 0.25 M, 90 ℃, and 8 h, respectively.

Figure 1 shows the XRD pattern of TiO₂ on cellulose support at various H₂SO₄ concentrations. It is evident that the peaks corresponding…