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首页> 外文期刊>Optical Materials >Enhanced antibacterial and visible light driven photocatalytic activity of CaFe_2O_4 doped CdO heterojunction nanohybrid particles prepared by sono-chemical method
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Enhanced antibacterial and visible light driven photocatalytic activity of CaFe_2O_4 doped CdO heterojunction nanohybrid particles prepared by sono-chemical method

机译:CAFE_2O_4掺杂CDO异质结纳米胺颗粒的增强抗菌和可见光驱动光催化活性

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CaFe2O4 doped CdO heterojunction nanohybrid particles (CdO/CaFe2O4 NCs) was fabricated by sono-chemical assisted co-precipitation technique. X-ray powder diffraction (XRD), selected area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM) analysis revealed the crystallinity of CdO and CaFe2O4. Chemical states were determined using X-ray photoelectron spectroscopy (XPS). Fourier-transform infrared spectroscopy (FTIR) also indicates the successful formation of CdO/CaFe2O4 NCs. BET analyzer indicates the high surface area of NCs (44.099 m(2)/g) compared to individual particles. The optical, electrical and magnetic properties were studied using UV-vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL) and vibrating-sample magnetometer (VSM). The resulting CdO/CaFe2O4 NCs showed enhanced performance in photocatalytic activity under visible light irradiation. The intimate NPs contact resulted in improvement in photocatalytic performance owing to the prevention of e(-)/h(+) recombination. The h(+) and OH- radicals played major role in dye degradation that was confirmed by scavengers study. The photocatalyst showed outstanding photostability and recyclability even after six photocatalytic runs. The CdO/CaFe2O4 NCs showed potential bacterial growth inhibition. The result indicates the multifunctionality of CdO/CaFe2O4 NCs that show superior photocatalytic and antimicrobial properties compared with pristine parts of CdO and CaFe2O4 NPs.
机译:CAFE2O4掺杂CDO异质结纳米胺(CDO / CAFE2O4 NCS)由Sono化学辅助共析技术制备。 X射线粉末衍射(XRD),选定区域电子衍射(SAED)和高分辨率透射电子显微镜(HRTEM)分析显示CDO和CaFe2O4的结晶度。使用X射线光电子谱(XPS)测定化学状态。傅立叶变换红外光谱(FTIR)还表明CDO / Cafe2O4 NC的成功形成。 BET分析仪表示与个体颗粒相比NCS的高表面积(44.099m(2)/ g)。使用UV-Vis漫反射谱(DRS),光致发光(PL)和振动样磁力计(VSM)研究光学,电气和磁性。得到的CDO / Cafe2O4 NCs在可见光照射下的光催化活性中表现出增强的性能。由于预防e( - )/ h(+)重组,亲密的NPS接触导致光催化性能改善。 H(+)和OH-自由基在染料中发挥了主要作用,染色师研究证实。即使在六次光催化运行后,光催化剂也表现出优异的光稳定性和可再循环性。 CDO / CaFe2O4 NCS显示出潜在的细菌生长抑制。结果表明CDO / Cafe2O4 NC的多官能正常,其显示出优异的光催化和抗微生物性能与CDO和CaFe2O4 NPS的原始部分相比。

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