介绍MXenes(Ti3C2)代表一组二维无机化合物,通过自上而下的去角质方法生产的。它们包括超薄层的过渡金属碳化物,或者碳氮化物,并在其表面表现出亲水特性。利用Ti3C2BiOCl纳米颗粒的抗菌和抗氧化特性涉及增强合成,processing,和表征技术。材料和方法制备Ti3C2MXene,将1.6g的LiF溶解在20ml的9MHCl中。在搅拌的同时向溶液中缓慢加入1克Ti3AlC2(碳化钛铝)粉末。在35°C下蚀刻24小时以从Ti3AlC2去除Al层,留下Ti3C2层。用蒸馏水和乙醇洗涤混合物直到pH为约6。通过离心收集洗涤的沉淀物,并将其在蒸馏水中超声处理1小时。离心以除去未剥落的颗粒。对于BiOCl合成,将2mmol的Bi(NO3)3·5H2O(硝酸铋五水合物)与0.5g的PVP(聚乙烯吡咯烷酮)一起溶解在10ml的2MHCl(盐酸)中。将溶液转移到Teflon衬里的高压釜中,用高达80%的蒸馏水填充它,并在160°C加热24小时。通过离心收集沉淀物,wash,并在60°C下干燥12小时。将BiOCl纳米颗粒分散在蒸馏水中,超声处理30分钟,添加Ti3C2MXene分散体,搅拌2小时,收集,wash,干,并在400°C下煅烧2小时。结果扫描电子显微镜(SEM)利用电子,而不是光,生成高度放大的图像。能量色散X射线光谱(EDS)通过分析固体样品受到电子轰击时发出的X射线光谱来补充SEM,实现局部化学分析。在SEM成像中,结合X射线光谱仪允许元素映射和点分析。所制备样品的SEM图像显示了BiOCl中手风琴状多层结构,具有许多孔隙的薄片状结构。EDS,依靠电子轰击的X射线发射,有助于在样品中的特定位置进行详细的化学分析。结论我们的研究揭示了二维Ti3C2BiOCl纳米粒子的合成和表征过程,揭示了他们显着的抗菌和抗氧化性能。
Introduction MXenes (Ti3C2) represent a group of two-dimensional inorganic compounds, produced through a top-down exfoliation method. They comprise ultra-thin layers of transition metal carbides, or carbonitrides, and exhibit hydrophilic properties on their surfaces. Utilizing Ti3C2 BiOCl nanoparticles for their antimicrobial and antioxidant attributes involves enhancing synthesis, processing, and characterization techniques. Materials and method To prepare Ti3C2 MXene, dissolve 1.6 g of LiF in 20 ml of 9M HCl. Slowly add 1 g of Ti3AlC2 (titanium aluminum carbide) powder to the solution while stirring. Etch at 35°C for 24 h to remove Al layers from Ti3AlC2, leaving Ti3C2 layers. Wash the mixture with distilled water and ethanol until the pH is around 6. Collect the washed sediment by centrifugation and sonicate it in distilled water for 1 h. Centrifuge to remove unexfoliated particles. For BiOCl synthesis, dissolve 2 mmol of Bi(NO3)3·5H2O (bismuth nitrate pentahydrate) in 10 ml of 2M HCl (hydrochloric acid) with 0.5 g of PVP (polyvinylpyrrolidone). Transfer the solution to a Teflon-lined autoclave, fill it with distilled water up to 80%, and heat at 160°C for 24 h. Collect the precipitate by centrifugation, wash, and dry at 60°C for 12 h. Disperse BiOCl nanoparticles in distilled water, sonicate for 30 min, add Ti3C2 MXene dispersion, stir for 2 h, collect, wash, dry, and calcine at 400°C for 2 h. Result The Scanning Electron Microscope (SEM) utilizes electrons, rather than light, to generate highly magnified images. Energy Dispersive X-ray Spectroscopy (EDS) complements SEM by analyzing the X-ray spectrum emitted when a solid sample is bombarded with electrons, enabling localized chemical analysis. In SEM imaging, incorporating an X-ray spectrometer allows for both element mapping and point analysis. The SEM image of the prepared samples reveals accordion-like multilayer structures in BiOCl, characterized by thin sheet-like structures with numerous pores. EDS, relying on X-ray emissions from electron bombardment, facilitates detailed chemical analysis at specific locations within the sample. Conclusion Our research has shed light on the synthesis and characterization processes of two-dimensional Ti3C2 BiOCl nanoparticles, revealing their remarkable antimicrobial and antioxidant properties.