C<sub>60</sub>/Bi<sub>2</sub>TiO<sub>4</sub>F<sub>2</sub> Heterojunction Photocatalysts with Enhanced Visible-Light\nActivity for Environmental Remediation
Guisheng Li (1552309)Bo Jiang (76119)Xin Li (51274)Zichao Lian (1644700)Shuning Xiao (1511545)Jian Zhu (126278)Dieqing Zhang (1511533)Hexing Li (1495228)
Abstract
Fullerene\n(C<sub>60</sub>)-enhanced B<sub>i2</sub>TiO<sub>4</sub>F<sub>2</sub> hierarchical microspheres were prepared by a facile\nsolvothermal method. Compared to the pure Bi<sub>2</sub>TiO<sub>4</sub>F<sub>2</sub> photocatalyst, the C<sub>60</sub>/Bi<sub>2</sub>TiO<sub>4</sub>F<sub>2</sub> samples exhibit much stronger photocatalytic\nperformance for degrading Rhodamine B (RhB) and Eosin Y (EY) under\nvisible light irradiation. Such greatly enhanced photocatalytic activity\nmay be ascribed to strong combination and heterojunctions between\nC<sub>60</sub> and Bi<sub>2</sub>TiO<sub>4</sub>F<sub>2</sub>, favorable\nfor charge separation and light adsorption. Loading C<sub>60</sub> on Bi<sub>2</sub>TiO<sub>4</sub>F<sub>2</sub> results in a new photocatalytic\nmechanism (based on photo-generated h<sub>vb</sub><sup>+</sup> and\n·O<sub>2</sub><sup>‑</sup> radicals) different from that\nof pure\nBi<sub>2</sub>TiO<sub>4</sub>F<sub>2</sub>.
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