用2D纳米片对纳米颗粒进行功能化是增强其功能特性以去除污染物的有效途径。这项研究概述了2D分层碳化钼(MXene)壳聚糖纳米复合材料(2D-d-Mo2CTx-CsNC)的合成,具有细菌控制和光催化性能,可用于染料吸附。纳米复合材料包括Tx表面终止基团O,OH,和F在这次调查中,使用蚀刻方法合成了复合材料,并通过288nm的紫外光谱确认了其形成。它通过FTIR表征,XRD,粒度,齐塔电位,FESEM,HRTEM,EDAX,和XPS分析。NC的FTIR光谱分析表明,胺是通过戊二醛和Cs之间的席夫碱反应形成的,或通过末端醛和羰基的相互作用。XRD分析证实了复合材料的晶体结构。FESEM图像显示在制备的2D-d-Mo2CTx-CsNC样品中不规则结构的纳米片(NS)材料。HRTEM图像显示2D-d-Mo2CTxNS浸渍在Cs上,平均尺寸为50nm,正如粒度分析仪所证实的那样,zeta电位值为-15mV。此外,Mo,C,N,O是NC中最重要的元素,正如EDAX和XPS分析所证实的那样。Further,2D-d-Mo2CTx-CsNC的生物相容性测试产生了阳性结果。此外,在阳光下,该复合材料有效吸附亚甲基蓝,吸附容量为90%,动力学研究证实了这一点。此外,Cs和d-Mo2CTxNSs的协同作用导致对病原菌的显着抗菌(50-200μl的1mg/ml)和抗生物膜活性(100μl的1mg/ml)。此外,这项研究代表了有关将2D-d-Mo2CTx-CsNC用于具有细菌控制作用的日光影响的光催化应用的第一份报告。
The functionalization of nanoparticles with 2D nanosheets is an effective approach to enhance their functional properties for pollutant removal. This research outlines the synthesis of a 2D-delaminated molybdenum carbide (MXene) chitosan nanocomposite (2D-d-Mo2CTx-Cs NC) with bacterial control and photocatalytic properties for dye adsorption. The nanocomposite includes Tx-surface terminating groups O, OH, and F. In this investigation, the composite was synthesized using the etching method and its formation was confirmed through UV spectra at 288 nm. It was characterized through FTIR, XRD, Particle size, Zetapotential, FESEM, HRTEM, EDAX, and XPS analyses. FTIR spectral analysis of NC suggests that amines are formed through a Schiff base reaction between glutaraldehyde and Cs, or through the interaction of terminal aldehydes and carbonyl groups. The XRD analysis confirmed the crystalline structure of the composite. FESEM images revealed irregularly structured nanosheets (NSs) material in the prepared 2D-d-Mo2CTx-Cs NC samples. HRTEM images revealed 2D-d-Mo2CTx NSs impregnated onto Cs with an average size of 50 nm, as confirmed by a particle size analyzer, with a zeta potential value of - 15 mV. Additionally, Mo, C, N, and O are the most significant elements present in the NC, as confirmed by EDAX and XPS analyses. Further, biocompatibility testing of 2D-d-Mo2CTx-Cs NC yielded positive results. Moreover, under sunlight, the composites effectively adsorbed methylene blue with a 90% adsorption capacity, as confirmed by kinetic studies. Furthermore, the synergistic effect of Cs and d-Mo2CTx NSs resulted in significant antibacterial (50-200 µl of 1 mg/ml) and antibiofilm activity (100 µl of 1 mg/ml) against pathogenic bacteria. Furthermore, this study represents the first report on the use of 2D-d-Mo2CTx-Cs NC for daylight-influenced photocatalytic applications with a bacteria-controlling effect.