Microsphere Bi2MoO6 was fabricated and surface engineered by coupling with C3N4 nanosheets in a one-pot solvothermal reaction. The composites obtained have enhanced visible light absorption, improved separation of photogenerated charge carriers, and enriched photo-production of radicals. The photocatalytic activity of as-prepared Bi2MoO6/C3N4 composites (BC) in the degradation of RhB under visible light irradiation was clearly correlated with the proportion of the components. When the Bi2MoO6 content was 70 wt%, photocatalytic degradation by the composite (BC7) was 3.3, 4.49, and 6.03 times that by the photocatalysts N–TiO2, C3N4, and Bi2MoO6, respectively. A possible mechanism of the photocatalysis is proposed on the basis of detection of active species by use of different scavengers and results from physicochemical characterization by use of XRD, FTIR, UV–visible/DRS, TEM, FL, and transient photocurrent response. Bi2MoO6/C3N4 composites might have potential applications in protection of the environment.
Research on Chemical Intermediates – Springer Journals
Published: Feb 17, 2015
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