File Name : fig. s1.tif

Caption : fig. s1 sem micrograph of: (a) gdt_0, (b) gdt_0.2, (c) gdt_0.4, (d) gdt_0.6, (e) gdt_0.8, and (f-g) eds and elemental mapping of gdt_0.8 photocatalyst. 

File Name : fig. s2.tif

Caption : fig. s2 (a) kinetic plot for tc removal as a function of irradiation time under optimal conditions and (b) reusability test of 0.8%gd-tio2 photocatalyst. 

File Name : fig. s3.tif

Caption : fig. s3 lc-ms spectra of tc using gd_0.8 photocatalyst: (a) before light irradiation and (b) after 80 min of light irradiation.

File Name : fig. s4.tif

Caption : fig. s4 photocatalytic performance with the addition of different scavengers based on optimum conditions.