Enhanced Photocatalytic Degradation of Rhodamine B Using CFe Co-Doped Titanium Dioxide Coated on Activated Carbon

Abstract EN

Carbon and iron co-doped titanium dioxide catalyst coated on activated carbon (Fe-C-TiO2/AC) was successfully synthesized using the sol-gel method, followed by hydrothermal treatment.

Commercial activated carbon was treated by HNO3 prior to being coated by the as-synthesized catalyst.

The composite was characterized by XPS, XRD, UV-Vis spectrophotometry, IR, TEM, HR-TEM, and BET.

The performance of the supported catalysts was evaluated in the degradation of rhodamine B (RhB) in the solution under visible-light irradiation.

The results showed that, with the appropriate amount of activated carbon, prepared Fe-C-TiO2/AC catalysts exhibited higher catalytic activities and Fe-C-TiO2/AC system showed the best performance.

The photocatalytic degradation efficiency of Fe-C-TiO2/AC was enhanced due to the synergistic effect between AC (adsorption effect) and Fe-C-TiO2 (photocatalysis effect).

This facilitated the photocatalytic degradation of RhB by Fe-C-TiO2.