Preparation of a Novel Nano or Submicron Tourmaline Ceramic and Its Ability to Inhibit the Activity of the Sulfate-Reducing Bacterium

2nd International Conference on Design, Materials, and Manufacturing

材料科学;机械制造

Li, Chun-Ying^1

School of Energy and Civil Engineering, Harbin University of Commerce, Harbin

150028, China^1

关键词: Bacteriostatic;    Calcination temperature;    Nano zinc oxide;    Removal of cods;    Solid phase synthesis;    Submicron scale;    Sulfate reducing bacteria;    Sulfate reduction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/220/1/012004/pdf
DOI  :  10.1088/1757-899X/220/1/012004

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, novel nano- or submicron-scale tourmaline bacteriostatic ceramics in which nano or submicron tourmaline is one of the central materials, together with nano-zinc oxide, are prepared using ion exchange and solid-phase synthesis techniques. The material is then examined with IR, XRD and XPS and is tested for the ability to inhibit the activity of the sulfate-reducing bacterium (SRB). The calcination temperature of the ceramic is 600 °C, and the main components are present at 11.17% for Si2p, 3.12% for Mo3d, 3.47% for Zn2p3, 2.86% for Mn2p and 2.35% for Cu2p. Additionally, the density of this material is 1.4-3.5 g/cm3, and its compressive strength exceeds 5.2 MPa, meeting the requirements of ceramic standards. Consequently, the bacteriostatic ceramic inhibits the activity of the sulfate-reducing bacterium effectively without inhibiting the removal of COD and NO3-. These results indicate that the sulfate-reducing bacterium maintains its functional metabolism, apart from its sulfate reduction potential, when using this bacteriostatic ceramic, thus achieving the goal of inhibiting the action of the sulfate-reducing bacterium.