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Photocatalytic dye degradation and biological activities of the Fe2O3/Cu2O nanocomposite

机译：Fe2O3 / Cu2O纳米复合材料的光催化染料降解及生物活性

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The present study reports the synthesis of the Fe _(2) O _(3) /Cu _(2) O nanocomposite via a facile hydrothermal route. The products were characterized using X-ray diffractometry (XRD), Fourier-transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), high-resolution transmission electron microscopy (HR-TEM), energy dispersive spectroscopy (EDS) and Brunauer–Emmett–Teller (BET) techniques. The composition, morphology and structural features of the nanoparticles were found to be size-dependent due to the temperature response in the particular time log during hydrothermal synthesis. HR-TEM confirmed the formation of hexagonal rod-shaped bare Cu _(2) O, rhombohedral-shaped Fe _(2) O _(3) and composite assembly. Rhodamine-B (RB) and Janus green (JG) were chosen as model dyes for the degradation studies. Photocatalytic degradation of the dyes was deliberated by altering the catalyst and dye concentrations. The results showed that the Rhodamine-B (RB) and Janus green (JG) dyes were degraded within a short time span. The synthesized materials were found to be highly stable in the visible light-driven degradation of the dyes; showed antibacterial activity against E. coli , P. aeruginosa , Staph. aureus and B. subtilis ; and exhibited less toxicity against the Musmusculus skin melanoma cells (B16-F10). The fusion of these advantages paves the way for further applications in energy conversion, biological applications as well as in environmental remediation.
机译：本研究报告了通过简便的水热途径合成Fe _（2）O _（3）/ Cu _（2）O纳米复合材料。使用X射线衍射仪（XRD），傅里叶变换红外光谱仪（FTIR），动态光散射（DLS），高分辨率透射电子显微镜（HR-TEM），能量色散光谱仪（EDS）和Brunauer–埃梅特-泰勒（BET）技术。发现纳米粒子的组成，形态和结构特征是尺寸依赖性的，这是由于在水热合成过程中特定时间日志中的温度响应。 HR-TEM证实了六角棒状裸Cu_（2）O，菱面体形Fe_（2）O_（3）和复合组件的形成。罗丹明B（RB）和贾努斯绿（JG）被选作降解研究的模型染料。通过改变催化剂和染料的浓度来研究染料的光催化降解。结果表明，若丹明-B（RB）和Janus green（JG）染料在短时间内降解。发现合成材料在可见光驱动的染料降解中是高度稳定的。表现出对大肠杆菌，铜绿假单胞菌，葡萄球菌的抗菌活性。金黄色葡萄球菌和枯草芽孢杆菌;并且对Musmusculus皮肤黑色素瘤细胞（B16-F10）的毒性较小。这些优势的融合为能量转换，生物应用以及环境修复中的进一步应用铺平了道路。

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