939237.fig.008a
(a)
939237.fig.008b
(b)
939237.fig.008c
(c)
939237.fig.008d
(d)
Figure 8: Time-series photocatalytic decomposition efficiencies (PDEs) determined via MWNT-TiO2 according to the calcination temperatures: benzene (a), toluene (b), ethyl benzene (c), and o-xylene (d).