Abstract
After being impregnated in the solution containing Mg(NO3)2·6H2O, γ-Al2O3 was dried and calcined at 500°C which results in the production of a bactericide, highly dispersed MgO loaded on the surface of γ-Al2O3. The threshold value of the monolayer dispersion of MgO on γ-Al2O3 is 14.97%, and MgO crystal formed when the load amount beyond this value. The samples with different load amount were characterized by X-ray Diffraction (XRD), Low-temperature N2 adsorption-desorption, Inductively Coupled Plasma (ICP) and High Resolution Scan Electronic Microscope (SEM). The results showed that these MgO microcrystals are highly dispersed and have regular size in the range of 4 to 10.8 nm. The specific surface, pore volume and pore size of the sample decreases with the increase of load amount. It is demonstrated that γ-Al2O3 with highly dispersed MgO on the surface is efficient bactericide, and the one with 20% load amount of MgO can kill more than 99% bacteria and spore cells.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
O. B. KOPER, J. S. KLABUNDE, G. L. MARCHIN, K. J. KLABUNDE, P. STOIMENOV and L. BOHRA, Curr. Microb. 44 (2002) 49.
P. K. STOIMENOV, ROSALYN L. KLINGER, GEORGE L. MARCHIN and KENNETH J. KLABUNDE, Langmuir 18 (2002) 667.
R. RICHARDS, W. LI, S. DECKER, C. DAVIDSON, O. KOPER, V. ZAIKOVSKI, A. VOLODIN, T. RIEKER and K. KLABUNDE, J. Am. Chem. Soc. 122 (2000) 4921.
E. LUCAS and K. KLABUNDE, J. Nanostruct. Mater. 12 (1999) 179.
S. KWAK, S. H. KIM and S. S. KIM, Environ. Sci. Technol. 35 (2001) 2388.
G. W. WAGNER, P. W. BARTRAM, O. KOPER and K. J. KLABUNDE, J. Phys. Chem. B 103 (1999) 3225.
RUI ZHANG, DIANQING LI, FAZHI ZHANG, DAVID G. EVANS and XUE DUAN, Fine Chem. 20 (2003) 74.
JIANG DE-EN, ZHAO BI-YING and XIE YOU-CHANG, Appl. Catal. A: General 19 (2001) 69.
DUAN XUE, LIN YANJUN and ZHANG HUI, Chinese Patent, CN02155467.6.
ZHANG YUFEN, XIE YOUCHANG, ZHANG YANG, ZHANG DELONG and TANG YOUQI, Science in China (Series B) 8 (1986) 805.
F. H. Chung, Appl. Cryst. 7 (1974) 526.
H. P. KLUG and L. E. ALEXANDER, In “X-Ray Diffraction For Polycrystalline and Amorphous Materials” (John Wiley & Sons, New York, 1974) p. 442.
ZHU HONGFA, in “Catalyst Supports” (Chemical Technology Publishing House, Beijing, 1980) p. 305.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
LIN, YJ., Li, DQ., Wang, G. et al. Preparation and bactericidal property of MgO nanoparticles on γ-Al2O3. J Mater Sci: Mater Med 16, 53–56 (2005). https://doi.org/10.1007/s10856-005-6446-0
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s10856-005-6446-0