含有杀菌金属的沸石

V. Tsitsishvili, N. Dolaberidze, N. Mirdzveli, M. Nijaradze, Z. Amiridze, B. Khutsishvili
{"title":"含有杀菌金属的沸石","authors":"V. Tsitsishvili, N. Dolaberidze, N. Mirdzveli, M. Nijaradze, Z. Amiridze, B. Khutsishvili","doi":"10.15407/hftp13.04.489","DOIUrl":null,"url":null,"abstract":"The coronavirus pandemic has increased interest in antibacterial agents containing bioactive metals, for which zeolites are promising carriers. On the other hand, zeolite adsorbents and ion exchangers containing bioactive metals and endowed with bactericidal properties are promising for water treatment and other environmental and medical applications.Silver-, copper-, and zinc-containing microporous materials have been prepared on the base of natural analcime,phillipsite and heulandite from Georgian manifestations using ion-exchange reactions between zeolite microcrystals and a salt of a corresponding transition metal in the solid phase followed by washing with distilled water. Synthesized in such way adsorbent-ion-exchangers are characterized by chemical composition based on the X-ray energy dispersion spectra, powder X-ray diffraction patterns, Fourier transform infra-red spectra and low-temperature adsorption-desorption isotherms of N2. Obtained materials remain the zeolite crystal structure and contain 130–230 mg/g of silver, 65–72 mg/g of copper, and 58–86 mg/g of zinc, as compared with modified samples of synthetic type A zeolite containing up to 380 mg/g of silver, 150 mg/g of copper, and 150 mg/g of zinc. Prepared metal-containing materials show bacteriostatic activity against Gram negative bacterium Escherichia coli, Gram positive bacteria Staphylococcus aureus and Bacillus subtilis, fungal pathogenic yeastCandida albicans, and a fungus Aspergilusniger, and natural zeolites enriched with biometals exhibit a synergistic effect – their mixtures have a higher bacteriostatic activity. It is shown that mixtures of copper and zinc forms have a higher activity than the silver-containing form, which is very important from a practical point of view for replacing expensive silver with cheaper copper and zinc. It has been found that the bacteriostatic activity of metal-containing zeolites is determined not only and not so much by the ions of bioactive metals released into the liquid medium, but an important role ininhibiting the growth of microorganisms plays a type of zeolite matrix. Despite the relatively low ion-exchange capacity, heulandite turned out to be a fairly effective matrix for bioactive metals.","PeriodicalId":296392,"journal":{"name":"Himia, Fizika ta Tehnologia Poverhni","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bactericidal metal-containing zeolites\",\"authors\":\"V. Tsitsishvili, N. Dolaberidze, N. Mirdzveli, M. Nijaradze, Z. Amiridze, B. Khutsishvili\",\"doi\":\"10.15407/hftp13.04.489\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The coronavirus pandemic has increased interest in antibacterial agents containing bioactive metals, for which zeolites are promising carriers. On the other hand, zeolite adsorbents and ion exchangers containing bioactive metals and endowed with bactericidal properties are promising for water treatment and other environmental and medical applications.Silver-, copper-, and zinc-containing microporous materials have been prepared on the base of natural analcime,phillipsite and heulandite from Georgian manifestations using ion-exchange reactions between zeolite microcrystals and a salt of a corresponding transition metal in the solid phase followed by washing with distilled water. Synthesized in such way adsorbent-ion-exchangers are characterized by chemical composition based on the X-ray energy dispersion spectra, powder X-ray diffraction patterns, Fourier transform infra-red spectra and low-temperature adsorption-desorption isotherms of N2. Obtained materials remain the zeolite crystal structure and contain 130–230 mg/g of silver, 65–72 mg/g of copper, and 58–86 mg/g of zinc, as compared with modified samples of synthetic type A zeolite containing up to 380 mg/g of silver, 150 mg/g of copper, and 150 mg/g of zinc. Prepared metal-containing materials show bacteriostatic activity against Gram negative bacterium Escherichia coli, Gram positive bacteria Staphylococcus aureus and Bacillus subtilis, fungal pathogenic yeastCandida albicans, and a fungus Aspergilusniger, and natural zeolites enriched with biometals exhibit a synergistic effect – their mixtures have a higher bacteriostatic activity. It is shown that mixtures of copper and zinc forms have a higher activity than the silver-containing form, which is very important from a practical point of view for replacing expensive silver with cheaper copper and zinc. It has been found that the bacteriostatic activity of metal-containing zeolites is determined not only and not so much by the ions of bioactive metals released into the liquid medium, but an important role ininhibiting the growth of microorganisms plays a type of zeolite matrix. Despite the relatively low ion-exchange capacity, heulandite turned out to be a fairly effective matrix for bioactive metals.\",\"PeriodicalId\":296392,\"journal\":{\"name\":\"Himia, Fizika ta Tehnologia Poverhni\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Himia, Fizika ta Tehnologia Poverhni\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15407/hftp13.04.489\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Himia, Fizika ta Tehnologia Poverhni","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15407/hftp13.04.489","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

冠状病毒大流行增加了人们对含有生物活性金属的抗菌剂的兴趣,沸石是很有希望的载体。另一方面,沸石吸附剂和离子交换剂含有生物活性金属并具有杀菌性能,在水处理和其他环境和医疗应用方面具有前景。用沸石微晶与相应的过渡金属盐在固相中进行离子交换反应,然后用蒸馏水洗涤,制备了含银、铜和锌的微孔材料。根据x射线能量色散谱、粉末x射线衍射图、傅里叶变换红外光谱和N2的低温吸附-脱附等温线对合成的吸附剂-离子交换剂进行了化学成分表征。所得材料保持沸石晶体结构,含有130-230毫克/克银、65-72毫克/克铜和58-86毫克/克锌,而合成A型沸石的改性样品含有高达380毫克/克银、150毫克/克铜和150毫克/克锌。制备的含金属材料对革兰氏阴性菌大肠杆菌、革兰氏阳性菌金黄色葡萄球菌和枯草芽孢杆菌、真菌致病性酵母白色念珠菌和真菌曲霉具有抑菌活性,富含生物金属的天然沸石具有协同作用——它们的混合物具有更高的抑菌活性。结果表明,铜和锌的混合形式比含银的形式具有更高的活性,这对于用更便宜的铜和锌代替昂贵的银具有重要的实用意义。研究发现,含金属沸石的抑菌活性不仅取决于生物活性金属离子释放到液体介质中,而且在抑制微生物生长方面起重要作用的是一种沸石基质。尽管离子交换能力相对较低,但榴辉石被证明是一种相当有效的生物活性金属基质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Bactericidal metal-containing zeolites
The coronavirus pandemic has increased interest in antibacterial agents containing bioactive metals, for which zeolites are promising carriers. On the other hand, zeolite adsorbents and ion exchangers containing bioactive metals and endowed with bactericidal properties are promising for water treatment and other environmental and medical applications.Silver-, copper-, and zinc-containing microporous materials have been prepared on the base of natural analcime,phillipsite and heulandite from Georgian manifestations using ion-exchange reactions between zeolite microcrystals and a salt of a corresponding transition metal in the solid phase followed by washing with distilled water. Synthesized in such way adsorbent-ion-exchangers are characterized by chemical composition based on the X-ray energy dispersion spectra, powder X-ray diffraction patterns, Fourier transform infra-red spectra and low-temperature adsorption-desorption isotherms of N2. Obtained materials remain the zeolite crystal structure and contain 130–230 mg/g of silver, 65–72 mg/g of copper, and 58–86 mg/g of zinc, as compared with modified samples of synthetic type A zeolite containing up to 380 mg/g of silver, 150 mg/g of copper, and 150 mg/g of zinc. Prepared metal-containing materials show bacteriostatic activity against Gram negative bacterium Escherichia coli, Gram positive bacteria Staphylococcus aureus and Bacillus subtilis, fungal pathogenic yeastCandida albicans, and a fungus Aspergilusniger, and natural zeolites enriched with biometals exhibit a synergistic effect – their mixtures have a higher bacteriostatic activity. It is shown that mixtures of copper and zinc forms have a higher activity than the silver-containing form, which is very important from a practical point of view for replacing expensive silver with cheaper copper and zinc. It has been found that the bacteriostatic activity of metal-containing zeolites is determined not only and not so much by the ions of bioactive metals released into the liquid medium, but an important role ininhibiting the growth of microorganisms plays a type of zeolite matrix. Despite the relatively low ion-exchange capacity, heulandite turned out to be a fairly effective matrix for bioactive metals.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
1.00
自引率
0.00%
发文量
0
期刊最新文献
Mechanical, thermooxidative and biodegradable properties of composites from epoxyurethanes and chemically modified hemp woody core Photocatalytic discoloration of organic dyes in water dispersion medium by anatase-based binary nanocomposites Structure and stability of MnOx-Na2WO4/SiO2 catalyst for oxidative condensation of methane Effect of zeolites modification on their adsorption properties Removal of cesium and strontium ions from aqueous solutions using metakaolin based geopolymers
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1