| 废弃口罩改性制备油水分离吸附材料 |
| |
| 引用本文： | 宁连超,韩雅欣,李群星,刘子涵,张铭.废弃口罩改性制备油水分离吸附材料[J].环境工程,2023,41(3):172-178. |
| |
| 作者姓名： | 宁连超 韩雅欣 李群星 刘子涵 张铭 |
| |
| 作者单位： | 1. 天津理工大学 化学化工学院, 天津 300384; |
| |
| 基金项目： | 国家自然科学基金(21576205)天津市科技成果重点推广计划(18JCTPJC48600) |
| |
| 摘 要： | 近年来，废弃口罩数量巨大，焚烧、填埋等处置方式存在资源浪费和潜在环境风险，寻求一种环保、经济、可行的处置方式成为迫切需要。采用氢氧化钠、正硅酸乙酯和十八烷基三氯硅烷对废弃口罩进行疏水改性，通过扫描电镜(SEM)、红外光谱分析仪(ATR-FTIR)、接触角测量等分析，结果表明改性后口罩表面形成完整、均匀的疏水包覆层，水接触角达到141.1°。改性后的口罩对润滑油、大豆油的吸附量分别达到28.52,26.84 g/g,且经10次吸油-解吸循环利用，吸油性能仍保持稳定。该研究为废弃口罩的资源化利用提供了一种新途径，具有较好的应用前景。
|
| 关 键 词： | 废弃口罩 疏水改性 油水分离 吸附材料 |
| 收稿时间： | 2022-03-16 |
PREPARATION OF ADSORPTION MATERIAL FOR OIL-WATER SEPARATION FROM MODIFIED ABANDONED MASKS |
| |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China;2. Center of Membrane Materials and Engineering Technology, Tianjin University of Technology, Tianjin 300384, China |
| |
| Abstract: | In recent years, a large number of abandoned masks cause resource waste and potential environmental risks in incineration and landfill. It is urgent to find an eco-friendly, economic and feasible disposal method for them. In the present work, hydrophobic modification of the abandoned masks with sodium hydroxide, TEOS and octadecyltrichlorosilane was conducted. Through scanning electron microscopy (SEM), infrared spectroscopy (ATR-FTIR) and contact angle measurement, it was found that a complete and uniform hydrophobic coating was formed on the surface of the modified masks, and the water contact angle reached 141.1°. The adsorption capacity of the modified masks for lubricating oil and soybean oil reached 28.52 g/g and 26.84 g/g, respectively. After 10 cycles of adsorption and desorption, the oil absorption performance remained stable. This study provides a new way for the resource utilization of waste masks and tells their good application prospect. |
| |
| Keywords: | |
|
| 点击此处可从《环境工程》浏览原始摘要信息 |
|
点击此处可从《环境工程》下载全文 |
|
