Synthesis and Characterization of Modified Zn-Antibacterial White Carbon Black

2010 ◽  
Vol 150-151 ◽  
pp. 522-525
Author(s):  
Bin Zhang ◽  
Xiao Ning Tang ◽  
Tao He ◽  
Su Qiong He ◽  
Wen Rong Yao

This paper investigated the preparation and characterization of the Zn-antibacterial White Carbon Black modified by electrolyte, surfactant, and organic solvent. The sol-gel method was used to prepare the White Carbon Black carrier. Zn2+ was selected to be the antibacterial ion, and Sodium nitrite (electrolyte), Sodium dodecylbenzene sulfonate (Surfactant), Ethanol (organic solvent) was selected to be the modifiers. They were synthesized on the white carbon black carrier. These as-synthesized modified antibacterial materials were characterized by inductively coupled plasma, particle size measurement instrument and enumeration tests (Escherichia coli as experimental bacterium). The result showed that the amount of antibacterial ions and bacteriostasis rate of modified Zn-antibacterial white carbon black are higher than those for the common Zn-antibacterial white carbon black. In addition, the particle sizes of modified samples can be extended down with a narrow size distribution. Other advantage of modified Zn-antibacterial white carbon black is good thermal stability.

2011 ◽  
Vol 383-390 ◽  
pp. 935-940
Author(s):  
Bin Zhang ◽  
Xiao Ning Tang

This paper investigated the synthesis and characterization of the Cu-antibacterial White Carbon Black modified by electrolyte, surfactant, and organic solvent. The sol-gel method was used to prepare the White Carbon Black carrier. Cu2+ was selected to be the antibacterial ion, and sodium nitrite (electrolyte), sodium dodecylbenzene sulfonate (surfactant), ethanol (organic solvent) was selected to be the modifiers. They were synthesized on the White Carbon Black carrier. These as-synthesized modified antibacterial materials were characterized by inductively coupled plasma, particle size measurement instrument and enumeration tests (Escherichia coli as experimental bacterium). The result showed that the amount of antibacterial ions and bacteriostasis rate of modified Cu-antibacterial White Carbon Black are higher than those of the common Cu-antibacterial White Carbon Black. In addition, the particle sizes of modified samples can be extended down to 7 µm with a narrow size distribution. Other advantages of modified Cu-antibacterial White Carbon Black are short drying time (only 5 min by microwave), good thermal and light stability.


2009 ◽  
Vol 79-82 ◽  
pp. 989-992 ◽  
Author(s):  
Bin Zhang ◽  
Xiao Ning Tang ◽  
Gang Xie ◽  
Su Qiong He ◽  
Yang Dong

In this study, we synthesized a new inorganic antibacterial material, of which Cu2+ was selected to be the antibacterial ion, 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 common Cu-inorganic antibacterial material without rare earths. In addition, the particle size of this material can be extended down to 20 μm with a narrow size distribution. Other advantages of this material are its loose and dispersive structure.


2009 ◽  
Vol 79-82 ◽  
pp. 1799-1802 ◽  
Author(s):  
Xiao Ning Tang ◽  
Bin Zhang ◽  
Gang Xie ◽  
Xue Shan Xia

Inorganic antibacterial materials consist of the antibacterial ions, the additives and the carrier. In this study, we synthesized a new inorganic antibacterial material, of which Ag+ was selected to be the antibacterial ion, lanthanum 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, and enumeration tests. The result showed that this material has loose and dispersive structure, good thermal and light stability. The possible antibacterial mechanism was also proposed through all the experimental data in this study.


2010 ◽  
Vol 150-151 ◽  
pp. 508-511 ◽  
Author(s):  
Bin Zhang ◽  
Tao He ◽  
Xiao Ning Tang ◽  
Yin Hua Xu ◽  
Liang Fu

This paper investigated the antibacterial mechanism of the Cu-antibacterial White Carbon Black containing cerium. The sol-gel method was used to prepare the White Carbon Black carrier. Cu2+ 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 structure and antibacterial mechanism of antibacterial material were characterized by inductively coupled plasma, Fourier transform infrared spectroscopy and enumeration tests (Escherichia coli as experimental bacterium). Results showed that the contents of antibacterial ions in the Cu-antibacterial white carbon black containing cerium were higher than those for the general Cu-antibacterial white carbon black (without containing cerium). Cu2+ was bound to white carbon black by ion exchange process. Bacteriostasis rate is over 99%. Furthermore, other advantages of this material are its good thermal and light stabilities.


2014 ◽  
Vol 29 (6) ◽  
pp. 1132-1137 ◽  
Author(s):  
Lucia D'Ulivo ◽  
Lu Yang ◽  
Yong-Lai Feng ◽  
John Murimboh ◽  
Zoltán Mester

Accurate quantitation and characterization of organometals are successfully achieved by splitting the gas chromatography (GC) flow to both an electron ionization mass spectrometer (EIMS) and an inductively coupled plasma mass spectrometer (ICPMS).


Archaeometry ◽  
2004 ◽  
Vol 46 (1) ◽  
pp. 35-46 ◽  
Author(s):  
D. J. Kennett ◽  
A. J. Anderson ◽  
M. J. Cruz ◽  
G. R. Clark ◽  
G. R. Summerhayes

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