Adsorption of the Toxic Compounds into the Mesoporous Silica Nanoparticles

• Main Authors: Ya-Ling Bau, 包雅玲
• Other Authors: Fa-Kuen Shieh
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/34308339837986966110

碩士 === 國立中央大學 === 化學研究所 === 99 === Because of owing high surface area with ability of selectivity adsorption and low toxicity, mesoporous silica nanoparticles (MSNs) family was wildly used in the field of toxic molecules adsorption research and development of drug delivery system. In industrial aspect, MSNs have played an important role in some applications, such as chemical catalysis, drug synthesis and, atmospheric science. Herein, our study - is about using the MSNs SBA-15 and its functionalized derivative compounds as materials for adsorbing contaminants in water, for example: paraquat, paraquat analogues, triclosan and etc. 　　In order to investigate the capability of adsorption for mesoporous materials, various materials adsorption conditions were prepared in this study. We changed the interaction time period, adjusted different temperature, and tested different dose of MSNs for finding saturated amount in solution. Interestingly, paraquat and paraquat analogues can be adsorbed by CES series MSNs, and this adsorption obeying Langmuir equation is a kind of physusorption. Meanwhile both CES and Phe series MSNs are also able to adsorb environment hormone, -triclosan. Amazingly, our result has showed the adsorption capacity of Phe-CES 10% for Triclosan is approximately 10% better than CES 10%. This consequence may be due to having good pi-pi interactions between benzene group on functionalized mesoporous with triclosan. Also, the adsorption capacity of Phe-SBA-15 for Triclosan is approximately 20% better than SBA-15. The decreased polar character of the functionalized mesoporous may be addressed for this result. In addition, our study also compared with the commercially available material carbon mesoporous, the adsorption capacity of SBA-15 for paraquat, paraquat analogues and Triclosan is approximately 30~50% much better than carbon mesoporous.