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Caption : fig. s1. sem images of tio<sub>2</sub> (a), pdism (b), cupdism (c), tio<sub>2</sub>/pdism (d) and tio<sub>2</sub>/cupdism 

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Caption : fig. s2. the mapping of tio<sub>2</sub>/cupdism composite.

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Caption : fig. s3. nitrogen adsorption-desorption isotherm (a), the specific surface area (b) and pore size distribution (c).

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Caption : fig. s4. raman spectra of pdism and cupdism samples.

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Caption : fig. s5. the adsorption performance of pdism.

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Caption : fig. s6. zeta potential of the samples.

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Caption : fig. s7. quasi-level kinetic modeling of mo (a) and mb (b).

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Caption : fig. s8. degradation of tc for 4 cycles using tio<sub>2</sub>/cupdism (a), xrd patterns of 3th cycle-tio<sub>2</sub>/cupdism and tio<sub>2</sub>/cupdism (b).