Zeolite X with potassium diformate as a sustained-release antibacterial agent

Bulletin of Materials Science

YINCHANG PEI^1¹  XIAOWEI GUO^1²  YUE HU^1³ 

[1] College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541006, People’s Republic of China^3;Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, Guilin 541004, People’s Republic of China^2;School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, People’s Republic of China^1

关键词: Stellerite;    zeolite X;    potassium diformate;    chitosan;    sustained-release antibacterial agent.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

A reaction of 800 mesh stellerite and a concentration of 15% hydrochloric acid in a solid to liquid ratio of 1:3 was carried out for 2 h at 80$^{\circ}$C. Most of its impurities were removed. It can be used as precursors for the preparationof high quality zeolite. Zeolite X which is octahedral crystal shape as cube, 96% of the degree of crystallinity has been synthesized hydrothermally from $n({\rm SiO}_2/{\rm Al}_2{\rm O}_3) = 3$, $n({\rm Na}_2{\rm O}/{\rm SiO}_2) = 1.14$ and $n({\rm H}_2{\rm O}/{\rm Na}_2{\rm O}) = 37$ by controlling reaction temperature and time. The synthesis included zeolite X as carriers, chitosan as intermediates, a mass ratio of zeolite X:chitosan:potassium diformate $=$ 3:1:2 in weight for 2 h at 40$^{\circ}$C. X-ray photoelectron spectroscopy analysis showed hydrogen bond formation by the chitosan amino hydrogen, potassium diformate oxygen and zeolite X oxygen or hydrogen bond formation by free hydroxyl group of zeolite X and oxygen of chitosan’s C–O, indicating effective grafting. Zeolite Xsustained-release antibacterial agent was prepared with an inhibition rate of 78.16% by the antibacterial.

【 授权许可】

CC BY