Scientists at Zhejiang University used filter paper and TiO2 thin films to create a new type of nanopaper that could continue to combine with a variety of chemical molecules and exhibit different characteristics to achieve "Wildness" in material applications. "The method of infiltrating and re-hydrolyzing the precursor solution allows the titanium dioxide film to be wrapped on the nanofibers of the filter paper. Afterwards, the nanomaterial can be further infiltrated with a solution containing other chemical molecules, and new materials of different uses can be manufactured." Professor Huang Jianguo of the Department of Chemistry at the University introduced that, on the naked eye, the appearance of nanopaper is not different from ordinary filter paper, but its function has been greatly different. Huang Jianguo said: "The filter paper is composed of a myriad of cellulose fibers. The fine structure naturally formed is not human. The hydroxyl groups produced after the hydrolysis of titanium dioxide have sufficient chemical activity and can be combined with the vast majority of molecules. These two materials The characteristics of the joint determination of the characteristics of the nano-paper 'allah oil'." Not long ago, Huang Jianguo "laid" a layer of dye called "naphthylamine" on the nano-paper fiber, allowing the nano-paper to turn into a test paper that would change color upon encountering nitrite. “This type of nanopaper is light and thin, and the shade of color indicates the level of nitrite, which is very effective in detecting nitrite concentrations in foods.†This study was published online in the UK in February of this year. Progress of the Royal Society of Chemistry "Journal. He introduced that nanopaper can also be used to detect mercury ions and fluoride ions in water, and even to detect specific sequences of DNA. The anti-bacterial nano-paper formed by combining a fluorocarbon chain compound with a nano-paper can also be used for food preservation and packaging. Since the fluorocarbon chain compound is not lipophilic or hydrophilic, the nanopaper also becomes "oil-and-water-free," and bacteria cannot stay on the nanopaper. Steam Trap,Flange Drain Primer Valve,Floating Ball Drain Valve,Floating Ball Steam Trap Chongqing Xingjida Import and Export Trade Co., Ltd. , https://www.xjdvalve.com
Chinese scientists create nanopaper