Effect of vanadic anhydride and copper oxide on the development of hard porcelain composite and its antibacterial activity

Journal of Asian Ceramic Societies

T.K. Mukhopadhyay¹  Subrata Kar²  Ujjwal Rajak²  Tania Das²  Pradip Thakur²  Sukhen Das²  Arpan Kool²  Gopal Chakraborty²  Biswajoy Bagchi³ 

[1] Clay and Traditional Ceramics Division, Central Glass and Ceramic Research Institute, Kolkata 700032, India;Department of Physics, Jadavpur University, Kolkata 700032, India;Fuel Cell and Battery Division, Central Glass and Ceramic Research Institute, Kolkata 700032, India;

关键词: Porcelain;    Mullite;    Hardness;    Antibacterial;   

DOI  :  10.1016/j.jascer.2014.06.004

来源: DOAJ

【 摘 要 】

A mullite-reinforced porcelain composite with antibacterial properties has been developed using transition metal oxides by solid state sintering. The composite has been characterized in terms of mullite content, hardness, color and antibacterial properties. The physico-chemical properties of the porcelain were substantially increased in the presence of V2O5 and CuO. Well-crystallized needle shaped mullite of average length ∼ 3 μm was observed in the porcelain body at 1300 °C and 1500 °C after the addition of V2O5 and CuO. Vickers hardness of the composite increased 4.2 times for 2% V2O5 at 1500 °C. The porcelain composites showed satisfactory antibacterial activity on gram negative bacteria Escherichia coli with mortality rates of 45% and 22% for V2O5 and CuO doped porcelain respectively.

【 授权许可】

Unknown