纳米氧化锌负载Na-P分子筛的制备及其抗菌性能

Q2 Materials Science
Sakesit Duangkham , Rattana Pengproh , Pattaranun Thuadaij
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引用次数: 0

摘要

本研究以纳米氧化锌(nano-ZnO)为载体,快速合成了Na-P分子筛,在抗菌方面取得了重大进展。以Narathiwat高岭石和蔗渣灰中提取的二氧化硅为原料,在100℃回流8 h制备了Na-P分子筛。将Na-P分子筛用浓度分别为1% w/w、3% w/w和5% w/w的纳米zno进行功能化,在70℃下超声浴15 min, 1400 rpm, 70℃下搅拌3 h,形成纳米复合材料。利用x射线衍射、傅里叶变换红外光谱和扫描电镜对复合材料进行了表征,证实了纳米zno的成功集成,且没有影响沸石的晶体结构。采用圆盘扩散法对合成的纳米复合材料对多种革兰氏阳性和革兰氏阴性菌(包括金黄色葡萄球菌和大肠杆菌)的抑菌效果进行了评价。负载3% w/w纳米氧化锌的沸石具有最高的抗菌活性,优于其他配方。纳米氧化锌支持Na-P分子筛作为高效抗菌剂的潜力,在医疗保健和环境修复方面具有重要的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Facile preparation of zeolite Na–P supported by nanozinc oxide for antibacterials
This research presents facile and short-time synthesis of zeolite Na–P supported by nanozinc oxide (nano-ZnO), demonstrating significant progress in developing antibacterial agents. Zeolites Na–P synthesized from Narathiwat kaolinite and silica derived from sugarcane bagasse ash were prepared by refluxing at 100 °C for 8 h. The zeolites Na–P were then functionalized with nano-ZnO in concentrations of 1 % w/w, 3 % w/w, and 5 % w/w in an ultrasound bath at 70 °C for 15 min and stirred with 1400 rpm at 70 °C for 3 h to form nanocomposites. The composites were characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy, which confirmed the successful integration of nano-ZnO without affecting the crystal structure of the zeolites. The antibacterial efficacy of the synthesized nanocomposites against various gram-positive and gram-negative bacteria, including Staphylococcus aureus and Escherichia coli, was evaluated using the disc diffusion method. The zeolites loaded with 3 % w/w nano-ZnO exhibited the highest antibacterial activity, outperforming the other formulations. The potential of zeolites Na–P is supported by nano-ZnO as a highly effective antibacterial agent, which has important implications for applications in healthcare and environmental remediation.
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来源期刊
Current Research in Green and Sustainable Chemistry
Current Research in Green and Sustainable Chemistry Materials Science-Materials Chemistry
CiteScore
11.20
自引率
0.00%
发文量
116
审稿时长
78 days
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