Hydrothermal Synthesis of Mesoporous ZrO2/Carbon Aerogels Composites for the removal of Organic Dye

• Main Authors: Fang-Ling Liang, 梁芳菱
• Other Authors: Yi-Feng Lin
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/66665611856140608828

碩士 === 中原大學 === 化學工程研究所 === 101 === In this study, ZrO2 nanoparticles with monoclinic crystal structures were successfully prepared by using hydrothermal process at 180℃ for 24h. Owing to its aggregation, it is necessary to overcome the result of low surface area. The reactants are ZrOCl2 and Hexamethylenetetramine (HMTA), and HMTA was hydrolyzed into ammonia and formaldehyde under high temperature aqueous solution. Adding phenol in the hydrothermal process, phenol formaldehyde resins (PF) were synthetic polymers obtained by the reaction of phenol with formaldehyde.This experimental process produced ZrO2 / phenolic resin composites；the products were then through carbonization under nitrogen. Finally we got mesoporous ZrO2 / Carbon Aerogels composites. ZrO2 / Carbon Aerogels composites have high surface area and we also found that the more amounts of HMTA were added, the more tetragonal crystal structures of ZrO2 / Carbon Aerogels composites were generated. High surface area and tetragonal crystal structures of ZrO2 / Carbon Aerogels composites are cardinal points to increase the adsorption of Organic Dye. On the other hand, ZrO2 / Carbon Aerogels composites also were served as photocatalysts, degrading organic dye in photocatalytic reaction to enhance the removal of organic dye. Different crystal structures of ZrO2 / Carbon Aerogels composites have different results of photocatalytic reaction.