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Enhanced photocatalytic activity of Fe-doped TiO_2 coated on N-doped activated carbon composites for photocatalytic degradation of dyeing wastewater

机译:涂覆在N掺杂活性炭复合材料上的Fe掺杂TiO_2的增强的光催化活性,用于光催化废水的光催化降解

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Fe-doped TiO_2 coated on N-doped activated carbon (Fe-TiO_2/N-AC, FTNA) composites were synthesized simply by a straightforward two-step procedure. The obtained materials were characterized by X-ray diffractometry (XRD), N_2 adsorption-desorption, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and FT-IR spectroscopies. Through the degradation of dyeing wastewater, the photocatalytic activity of FTNA was investigated under ultraviolet light irradiation. The results showed that containing N functional groups were successfully introduced onto the surface of the activated carbon. Compared with Fe-TiO_2/AC (FTA), FTNA with average particle size of TiO_2 13.6 nm and surface area 1007.89 m~2/g showed a higher photoactivity. Additionally, for the photocatalytic degradation of dyeing wastewater, the optimum N content and catalyst content were 0.8% and 5g/L, respectively. Moreover, the photoactivity and photo stability of the catalyst after many runs was also evaluated.
机译:涂覆在N掺杂的活性炭(Fe-TiO_2 / N-AC,FTNA)复合材料上的Fe掺杂的TiO_2仅通过直接的两步步骤合成。所得材料的特征在于X射线衍射法(XRD),N_2吸附 - 解吸,扫描电子显微镜(SEM),X射线光电子体光谱(XPS)和FT-IR光谱。通过染色废水的降解,在紫外光照射下研究了FTNA的光催化活性。结果表明,在活性炭的表面上成功地将含有N官能团。与Fe-TiO_2 / Ac(FTA)相比,平均粒径为TiO_2 13.6nm和表面积1007.89m〜2 / g的FtNa显示出更高的光度。另外,对于染色废水的光催化降解,最佳N含量和催化剂含量分别为0.8%和5g / L.此外,还评估了许多贯穿催化剂的光活性和光稳定性。

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