Tab.1

Addition contents of reactants of photocatalytic componentsmg"

Fig.1

Polyurethane sponge particles before (a) and after (b) loading photocatalytic components andresulting filled floating spheres (c)"

Fig.2

Fabrication scheme of floating spheres filled with polyurethane sponge particles loading photocatalytic components"

Fig.3

Photo-degradation for methyl orange and corres-ponding degradation curve in highly saline wastewater by filled floating spheres. (a) Photodegradation process by floating photocatalytic spheres;(b) Top view of photodegradation process by floating photocatalytic spheres; (c) Photodegradation curves for methyl-orange by floating photocatalytic spheres"

Fig.4

TEM images of different photocatalytic components. (a) Modified P25; (b) Ag-P25; (c) AU-P25; (d) Pt-P25"

Fig.5

FT-IR spectra of different photocatalytic components"

Fig.6

XRD patterns of different photocatalytic components"

Fig.7

XPS profiles of Ag3d (a) and Ti2p (b) in Ag-P25"

Fig.8

XPS profiles of Au4f (a) and Ti2p (b) in Au-P25"

Fig.9

XPS profiles of Pt4f (a) and Ti2p (b) in Pt-P25"

Fig.10

UV-vis diffuse reflectance spectra of different photocatalytic components"

Fig.11

PL spectra of different photocatalytic components"

Fig.12

Photodegradation for methyl-orange in highly saline wastewater by different photocatalytic components"

Fig.13

Photodegradation for methyl-orange in different saline wastewater by Pt-P25"

Fig.14

Photodegradation for methyl-orange in saline wastewater by floating photocatalytic sphere loaded with different Pt-P25 contents. (a)Degradation curves by floating photocatalytic spheres loaded with different Pt-P25 contents;(b)Photodegradation for methyl-orange in saline wastewater for three cycles"

Fig.15

Powders obtained by centrifuging supernatant after a porous polyurethane sponge"