Research Article

Tuning the Photocatalytic Activity and Optical Properties of Mesoporous TiO2 Spheres by a Carbon Scaffold

Table 2

TOC values (mg C/L) in solution after 6 hours (initial TOC values were 76 mg C/L in all the cases) with indication of the relative abundance of phenol and its degradation intermediates, and the overall conversion in terms of phenol degradation and mineralization yields (%).
(a) Solution composition after 6 h of irradiation

PhenolaHY + BZ + CA Total TOC
(mg C/L)

P250.310.080.6151.3
CSTi0.530.040.4344.2
HSTi0.470.030.5043.4
Photolysis0.190.070.7473.6

Relative abundance versus TOC values.
*HY: hydroquinone; BZ: benzoquinone; CAT: catechol; SOA: short alkyl chain organic acids.
(b) Overall photocatalytic conversion

Degraded phenol
(%)
Mineralization
(%)

P257933
CSTi6942
HSTi7343
Photolysis823