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Journal of Rare Earths 2014年第9期32卷 900-906页

作者：毛翠萍张彬唐晓宁李欢何素琼 Faculty of Science Kunming University of Science and Technology Institute for Clean Energy and Advanced materials South-west University Faculty of Chemical Engineering Kunming University of Science and Technology

A Box-Behnken design （BBD） of response surface methodology （RSM） was used to optimize the preparation of the Zn-Sm antibacterial white carbon black by the sol-gel method. The statistical analysis of the results showed that the particle size of the Zn-Sm antibacterial white carbon black was significantly affected by the reaction time, reaction temperature and the stirring speed. According to analysis of variance （ANOVA）, the values of the determination coefficient （R2=0.9821） and the ＂Pred R-Squared＂ of 0.8227 were in reasonable agreement with the ＂Adj R-Squared＂ of 0.9591. It was indicated that this model could be used to navigate the design space. The optimized reaction time, temperature and the stirring speed were 0.88 h, 87.83 ℃, and 473.45 r/rain, respectively. In addition, the bacteriostasis rate of the product was about 97.92%.

关键词： response surface inorganic antibacterial material zinc ion samarium rare earths

Synthesis,characterization,and antimicrobial properties of Cu-inorganic antibacterial material containing lanthanum

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Journal of Rare Earths 2010年第S1期28卷 451-455页

作者：张彬林艳唐晓宁何素琼谢刚 Faculty of Science Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology

In this paper a kind of new inorganic antibacterial material:Cu-antibacterial white carbon black containing lanthanum was *** characterization and antimicrobial effect of the Cu-antibacterial white carbon black containing lanthanum was *** antibiotic materials comprised the carrier,the antibacterial ion and the *** this study,we choosed white carbon black as the carrier,which was compound by a sol-gel *** ion was selected to be the antibacterial ion,and lanthanum nitrate was selected to be the *** as-synthesized Cu-La-antibacterial white carbon black was characterized by inductively coupled plasma(ICP),laser particle size analyzer,Fourier transform infra-red spectroscopy(FT-IR) and antibacterial activity test(Escherichia coli as experimental bacterium).Results showed that the amount of antibacterial ions of the Cu-La-antibacterial white carbon black was higher than that for the general Cu-antibacterial white carbon *** bacteriostasis rate was about 98%(when the content of Cu2+ was about 3%),and corresponded to Ag-antibacterial white carbon black(99%).The particle size of Cu-La-antibacterial white carbon black was under 30 μm with a narrow size *** ion was bound to white carbon black by ion exchange ***,this new inorganic antibacterial material showed promising result on the coating surface of metal.

关键词： inorganic antibacterial material white carbon black lanthanum nitrate copper application rare earths

Preparation and Characterization of Cu-Ag-inorganic antibacterial material Containing Rare Earths

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Journal of Rare Earths 2007年第S1期25卷 175-181页

作者：张彬谢刚唐晓宁王晓楠 Faculty of Science Kunming University of Science and Technology Faculty of materials and Metallurgical Engineering Kunming University of Science and Technology General Chemical Coking Technology Center Angang Steel Company Limited

inorganic antibacterial materials consist of the antibacterial ions, the additives and the carrier. In this study, we synthesized a new inorganic antibacterialmaterial, of which Cu2+ and Ag+ were selected to be the bi-component antibacterial ions, cerous nitrate served as the additives, and the white carbon black was chosen as the carrier, which was prepared by a sol-gel method. The as-synthesized antibacterial material was characterized by inductively coupled plasma, particle size measurement instrument, scanning electron microscope and enumeration tests. The result showed that the amount of antibacterial ions and bacteriostasis rate of this new material are higher than those for the single-ion inorganic antibacterial material. In addition, the particle size of this material can be extended down to 7 μm with a narrow size distribution. Other advantages of this material are its loose and dispersive structure, good thermal and light stability. From the antibacterial experiment in rubber and the coating surface of metal, this new material showed promising results. The possible antibacterial mechanism was also proposed through all the experimental data in this study.

关键词： inorganic antibacterial material white carbon black rare earths antibacterial mechanism application

Silver Supported on White Carbon Black Containing Rare Earths as antibacterial material

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Journal of Rare Earths 2007年第S1期25卷 97-103页

作者：唐晓宁谢刚张彬王晓楠 Faculty of material and Metallurgy Engineering Kunming University of Science and Technology Faculty of Science Kunming University of Science and Technology General Chemical Coking Technology Center Angang Steel Company Limited

The antimicrobial effect of the Ag-White Carbon Black containing rare earth was investigated. inorganic antibiotic materials consist of the antibacterial ion, the additive and the carrier. The sol-gel method was used to prepare the white carbon black carrier. Ag+ was selected to be the antibacterial ion, and cerous nitrate was selected to be the additive. They were synthesized on the white carbon black carrier. The structures and properties of antibacterial material were characterized by inductively coupled plasma, particle size measurement instrument, fourier transform infrared and enumeration tests (Escherichia coli as experimental bacterium). Results showed that the amount of antibacterial ions and bacteriostasis rate of this new material are higher than those for the general Ag-antibacterial white carbon black (without containing rare earth). Ag+ was bound to white carbon black by ion exchange process and adsorption process. Bacteriostasis rate is over 99%, and the particle size can be extended down to 7 μm with a narrow size distribution. Other advantages of this material are good thermal and light stability. Furthermore, from the antibacterial experiment in rubber and the coating surface of metal, this new material showed promising results. The possible antibacterial mechanism was also proposed through all the experimental data in this study.

关键词： inorganic antibacterial material white carbon black antibacterial mechanism application rare earths

Mechanism of antibacterial activity of silver and praseodymium-loaded white carbon black

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Journal of Rare Earths 2010年第S1期28卷 442-445页

作者：张彬林艳唐晓宁许寅华谢刚 Faculty of Science Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology

This paper investigated the antibacterial mechanism of the Ag-Pr-antibacterial white carbon *** sol-gel method was used to prepare the carrier:white carbon *** ion was selected to be the antibacterial ion,and praseodymium nitrate was selected to be the *** structure and antibacterial mechanism of this new inorganic antibacterial material were characterized by laser particle size analyzer,scanning electron microscope(SEM) techniques,energy dispersive spectrum(EDS) analysis,and antibacterial activity test(Escherichia coli as experimental bacterium).Results showed that the particle size of Ag-Pr-antibacterial White carbon black was less than 30 μm with a narrow size ***+ is combined into the white carbon black by both the mode of ion exchange and the mode of adsorption *** bacteriostasis rate of the Ag-Pr-antibacterial white carbon black was higher than that of the general Ag-antibacterial white carbon *** antibacterial activity of Ag-Pr-antibacterial white carbon black was caused by the combination of contact and stripping antibacterial *** result also indicated that this new inorganic antibacterial material had good thermal and light stability.

关键词： inorganic antibacterial material white carbon black praseodymium nitrate antibacterial mechanism rare earths