Controlled preparation and highly photocatalytic activity of portable MCC-g-GMA@TiO2 photocatalyst by pre-radiation grafting-embedding method

- MCC-g-GMA@TiO2 is prepared by pre-radiation grafting-embedding method.
- TiO2 was successfully introduced into the surfaces of MCC resin.
- Portable MGT have a higher photocatalytic performance than single component.
- Synergistic effects of adsorption-enrichment and photocatalytic degradation were attributed to the excellent photocatalytic activity.
- MGT photocatalyst contains the excellent properties of high photo-stability, more recycles and good separation-free.

A portable and high efficient photocatalytic properties of MCC-g-GMA@TiO2 (MGT) photocatalyst based on micocrystaline cellulose (MCC) surfaces is prepared by pre-radiation grafting-embedding method. TiO2 nanoparticles were successfully introduced into the surfaces of novel MCC resin and manifested by FTIR, TG, XRD. Microstructure of MGT was characterized further by FESEM-EDS, FESEM-EDX mapping, HRTEM and BET. The highly photocatalytic activity of MGT was tested by the degradation of methyl blue dye (MB) in the aqueous medium under Xenon arc lamp. The results showed that the portable MGT resin complex system also had a highest photocatalytic performance at the appropriate content of TiO2 (4.22 wt%) and suitable radiation dose (60 kGy). Perhaps primary reasons were attributed to the synergistic effect of adsorption-enrichment and photocatalytic degradation. In addition, the high recycling ability of MGT complex confirms that photocatalyst is highly photostability and exhibited good separation-free. Overall, this portable MGT photocatalyst has good potential for application in the field of water pollution treatment.

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