纳米铜掺杂碳底物的合成与抗菌研究活性炭,还原氧化石墨烯和纳米碳纤维

IF 0.7 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of metals, materials and minerals Pub Date : 2022-09-30 DOI:10.55713/jmmm.v32i3.1270
Songwuit Chanthee, Jenjira Jirasangthong, Channarong Asasvatesanupap, M. Santikunaporn
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引用次数: 1

摘要

铜氧化物(CuxO)由于其生物活性而受到广泛关注。CuxO纳米颗粒(NPs)附着在不同的底物上,对细菌和病毒表现出广泛的抗菌活性,具有与银相似的性质。在杏核活性炭(AAC)、还原氧化石墨烯(rGO)和碳纳米纤维(CNF)三种碳基质上,研究了CuxO-NPs掺杂在不同碳材料上的抗菌活性。采用硝酸铜浸渍和热处理的方法制备了掺CuxO-NPs(重量为5 wt%)的AAC和rGO衬底,采用聚丙烯腈前驱体硝酸铜静电纺丝法制备了掺CuxO-NPs(重量为5 wt%)的CNF。用x射线衍射和傅里叶红外光谱分别对CuxO的形态和化学功能进行了表征。用扫描电子显微镜测量表面形貌。通过对金黄色葡萄球菌和大肠杆菌的抑菌区测定来评价底物的抑菌活性。结果表明,对不同的碳底物有显著的抑制距离。有趣的是,在AAC和rGO表面上掺杂CuxO-NPs都显示出清晰的细菌抑制区,而在CNF底物上掺杂CuxO-NPs则没有记录到抑制区。考察了各种参数,如碳衬底、粒度和氧化铜种类。
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Synthesis and antimicrobial studies of nano-copper doped carbon substrates; activated carbon, reduced graphene oxide, and carbon nanofiber
Copper oxides (CuxO) have received considerable attention as a result of their biological activity. Nanoparticles (NPs) of CuxO attached to different substrates exhibit a wide spectrum of antimicrobial activity against bacteria and viruses, with similar properties to silver. The antimicrobial activity of CuxO-NPs doped on distinctive carbon materials was investigated for three carbon substrates: apricot stone activated carbon (AAC), reduced graphene oxide (rGO) and carbon nanofiber (CNF). The CuxO-NPs (5 wt%) doped AAC and rGO substrates were prepared by impregnation of copper nitrate followed by a thermal treatment process, while a similar weight of CuxO-NPs doped CNF was fabricated by electrospinning copper nitrate with polyacrylonitrile precursor, followed by carbonization. The CuxO species and chemical functions were characterized by X-ray diffraction and Fourier transform infrared spectroscopy, respectively. Surface morphology was measured using scanning electron microscopy. The antimicrobial activities of the substrates were evaluated by inhibition zone measurement of Staphylococcus aureus and Escherichia coli. The results demonstrated significant inhibition distances for different carbon substrates. Interestingly, CuxO-NPs doped over both AAC and rGO surfaces revealed clear zones against bacteria, whereas the inhibition zone was not recorded for CuxO-NPs doped over a CNF substrate. Various parameters such as carbon substrates, particle size, and copper oxide species were investigated.
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来源期刊
Journal of metals, materials and minerals
Journal of metals, materials and minerals MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
1.40
自引率
11.10%
发文量
0
期刊介绍: Journal of Metals, Materials and Minerals (JMMM) is a double-blind peer-reviewed international journal published 4 issues per year (starting from 2019), in March, June, September, and December, aims at disseminating advanced knowledge in the fields to academia, professionals and industrialists. JMMM publishes original research articles as well as review articles related to research and development in science, technology and engineering of metals, materials and minerals, including composite & hybrid materials, concrete and cement-based systems, ceramics, glass, refractory, semiconductors, polymeric & polymer-based materials, conventional & technical textiles, nanomaterials, thin films, biomaterials, and functional materials.
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