Comparation of photocatalytic rate constants (k) of PCP with different photocatalyst conditions under 3 kinds of UV irradiation.

<p>Comparation of photocatalytic rate constants (k) of PCP with different photocatalyst conditions under 3 kinds of UV irradiation.</p

Photocatalytic degradation of PCP with TiO₂, graphene-TiO₂ and without catalyst under different pH values: (a) pH = 1; (b) pH = 4; (c) pH = 10; (d) pH = 13.

<p>Photocatalytic degradation of PCP with TiO₂, graphene-TiO₂ and without catalyst under different pH values: (a) pH = 1; (b) pH = 4; (c) pH = 10; (d) pH = 13.</p

Comparation of phenol production under different photocatalyst conditions after 2 hours UV irradiation and its percentage of initial PCP.

<p>Comparation of phenol production under different photocatalyst conditions after 2 hours UV irradiation and its percentage of initial PCP.</p

Photocatalytic rate constants of PCP degradation with different TiO₂ loading, compared with the one of pure UV irradiation.

<p>Photocatalytic rate constants of PCP degradation with different TiO₂ loading, compared with the one of pure UV irradiation.</p

Schematic experimental system for photo degradation experiments.

<p>Schematic experimental system for photo degradation experiments.</p

Percentage remained of PCBs after 2 hours photodegradation under UV light with TiO₂, graphene-TiO₂ and without catalyst: (a) congener 8; (b) congener 28; (c) congener 30; (d) congener 31; (e) congener 33; (f) congener 74.

<p>Percentage remained of PCBs after 2 hours photodegradation under UV light with TiO₂, graphene-TiO₂ and without catalyst: (a) congener 8; (b) congener 28; (c) congener 30; (d) congener 31; (e) congener 33; (f) congener 74.</p

Photocatalytic degradation of PCP with TiO₂, graphene-TiO₂ and without catalyst under: (a) 9 W UV light; (b) 300 W UV light.

<p>Photocatalytic degradation of PCP with TiO₂, graphene-TiO₂ and without catalyst under: (a) 9 W UV light; (b) 300 W UV light.</p

Change in the landscape indices during the period 1910–2010: (a) number of patches (NP), (b)Patch density (PD), (c) landscape shape index (LSI), and (d) aggregation index (AI).

<p>Change in the landscape indices during the period 1910–2010: (a) number of patches (NP), (b)Patch density (PD), (c) landscape shape index (LSI), and (d) aggregation index (AI).</p

Proportion of the three growth types in different periods.

<p>Proportion of the three growth types in different periods.</p

Urban spatial expansion of Shenyang from 1910 to 2010.

<p>(Buffer distance from the Shenyang Imperial Palace: 0–15 kilometers step 1kilometer; 15–25 kilometers step 5 kilometers.).</p