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An AgBiS2/BiOI composites with different proportions were prepared by precipitation method, and their catalytic activity was studied by degrading RhB (100 mg/L) under simulated light conditions. The results showed that the photocatalytic activity of AgBiS2/BiOI composite was the best when the doping amount of AgBiS2 was 4 wt. % (the degradation rate was about 94%). Compared with pure BiOI, the degradation rate of RhB increased by 24%. After 5 cycles of experiments, the degradation rate of the material can still reach 94%, indicating that the AgBiS2/BiOI composite has good stability. [ABSTRACT FROM AUTHOR]

A CQDs/CoO/g-C3N4 nanocomposite used for photocatalytic degradation was designed and fabricated in this paper. The effects of carbon quantum dots (CQDs) content and synthesis temperature on photocatalytic properties of nanocomposites were studied. The results show that the solar energy utilization efficiency of CQDs/CoO/g-C3N4 nanocomposite is twice that of pure g-C3N4 when the content of CQDs is 4.5 wt%. The improvement of photocatalytic performance of nanocomposite is mainly attributed to the synergistic effect of the junction/interface between g-C3N4, CoO and CQDs. [ABSTRACT FROM AUTHOR]

Efficient UV excitable Ce3+ ion activated SrWO4 phosphors, which were successfully prepared through a hydrothermal method. X-ray diffraction, field-emission scanning electron microscopy, CIE color coordinates and photoluminescence were used to characterize the samples. The effect of adding pH solution on the luminescent properties of SrWO4: Ce3+ was studied, the luminescence material SrWO4:Ce3+ exhibits intense blue photoluminescence (PL) with the maximum peak located at 306 nm, which is ascribed to the 4f→5d transition of Ce3+, All these results indicate that the SrWO4: Ce3+ phosphor holds tremendous potential for practical applications in and display with high performance LEDs. [ABSTRACT FROM AUTHOR]