Journal of Inorganic Materials ›› 2017, Vol. 32 ›› Issue (5): 529-534.doi: 10.15541/jim20160395

• Orginal Article • Previous Articles     Next Articles

Synthesis and Characterizations of B2O3-SiO2-Na2O Controlled-release Antibacterial Agent

Rui-Rui SHI1(), Meng LI2, Yuan-Sheng PEI1()   

  1. 1. Key Laboratory of Water and Sediment Sciences, School of Environment, Beijing Normal University, Beijing 100875, China
    2. School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, China
  • Received:2016-06-23 Revised:2016-08-02 Online:2017-05-20 Published:2017-05-02
  • About author:SHI Rui-Rui. E-mail: 201421180062@mail.bnu.edu.cn

Abstract:

High temperature melting method has been used to synthesize B2O3-SiO2-Na2O controlled-release antibacterial agent on account of the functions that borate can inhibit the growth of bacteria and algae. The new inhibitor, a solid agent with controlled-release capability in water, is different from those liquid and gaseous antibacterial agents. In this study, the physicochemical properties of the inhibitor were characterized by XRD, SEM and FTIR. The concentrations of boron in solution were determined by using ICP-AES to determine the release capability of the inhibitor. Moreover the experiments of inhibitory circle and inhibitory rate were carried out to evaluate the antibacterial effects of the inhibitor on Escherichia Coli and Staphylococcus Aureus. The results indicate that the inhibitors present amorphous structure, with the content of [BO3] and [BO4] groups in the internal structure being affected by the amounts and the ratio of B2O3 and SiO2. The agent surface is denser while the release rate decreases with the decrease of B2O3 amount. Furthermore, the antibacterial effect enhances with the increase of boron concentration. S. Aureus is more sensitive to the inhibitor than E. Coli. The inhibitor containing 55wt% of B2O3 gets the best antibacterial effect , which exhibits better controlled-release than the others. The present results provide a reference for further research and industrial application of the antibacterial agent.

Key words: boron, controlled-release, antibacterial effect

CLC Number: 

  • TQ174