Fe-Doped UiO-66 Combined with ZnIn<sub>2</sub>S<sub>4</sub> for Adsorption and Degradation of RhB Under Visible Light
Litong Niu, Shaoping Hu, Yali Ma, Mingming Wang, Bolin Lv, Shuangyang Meng, Fenglin Hua, Li Li, Bitao Su, Ziqiang Lei, Zhiwang Yang
Abstract
Novel ZnIn 2 S 4 /FeUiO-66 (ZFeU) photocatalyst with different proportion of FeUiO-66 has been successfully prepared by a facile one-pot solvothermal reaction. The as-synthesized nanocomposites have been thoroughly characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform-infrared spectroscopy (FT-IR), UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS), Brunauer–Emmett–Teller (BET) characterization, photoluminescence (PL) analysis and electrochemical impedance spectrum (EIS). The photocatalytic performance of ZFeU nanocomposites for the photodegradation of RhB under visible light irradiation was better than that of ZnIn 2 S 4 and FeUiO-66 alone. The experiment results showed the 20% ZFeU nanocomposites had the best photocatalytic properties. At the same time, a probable mechanism was discussed and it was believed that introduction of FeUiO-66 on ZnIn 2 S 4 would minimize the recombination of photogenerated electron-hole pairs, leading to the enhancement of the photocatalytic activity.