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首页> 外文期刊>Journal of industrial and engineering chemistry >Synthesis and characterization of novel PbS-graphene/TiO2 composite with enhanced photocatalytic activity
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Synthesis and characterization of novel PbS-graphene/TiO2 composite with enhanced photocatalytic activity

机译：具有增强光催化活性的新型PbS-石墨烯/ TiO2复合材料的合成与表征

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摘要

In this study novel material PbS-graphene/TiO2 composites were prepared by sol-gel method. The "as-prepared" composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) with an energy dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM), UV-vis diffuse reflectance spectra (DRS) and Raman spectroscopic analysis. The photocatalytic activities were investigated by the degradation of methylene blue (MB) as a standard dye. We observed that coupling of PbS with TiO2 extends the photoresponse to visible region. This revealed that the excellent photoinduced charge separation abilities and transport properties of graphene make these hybrids as potential candidates for developing high-performance next-generation devices.
机译：本研究采用溶胶-凝胶法制备了新型的PbS-石墨烯/ TiO2复合材料。制备后的复合材料的特征在于X射线衍射（XRD），扫描电子显微镜（SEM）和能量色散X射线（EDX）分析，透射电子显微镜（TEM），紫外可见漫反射光谱（ DRS）和拉曼光谱分析。通过降解作为标准染料的亚甲基蓝（MB）来研究光催化活性。我们观察到PbS与TiO2的耦合将光响应扩展到可见光区域。这表明，石墨烯具有出色的光诱导电荷分离能力和传输性能，使这些杂化物成为开发高性能下一代装置的潜在候选者。

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