| 聚偏氟乙烯多孔膜对水中刚果红的吸附性能 |
| |
| 引用本文： | 吴震宇,高大笙,崔爽,熊爽,刘宁宁,姚莉,石喆文.聚偏氟乙烯多孔膜对水中刚果红的吸附性能[J].辽宁石油化工大学学报,2019,39(5):30. |
| |
| 作者姓名： | 吴震宇 高大笙 崔爽 熊爽 刘宁宁 姚莉 石喆文 |
| |
| 作者单位： | （1.辽宁石油化工大学 化学化工与环境学部，辽宁 抚顺 113001； 2.辽宁省分析科学研究院，辽宁 沈阳 110015； 3.中国石化扬子石油化工有限公司 烯烃厂，江苏 南京 210044） |
| |
| 摘 要： | 采用相转化法制备了聚偏氟乙烯（PVDF）多孔膜，并通过扫描电子显微镜、热重?差热分析仪对样品的表面及断面形貌、热稳定性进行了表征。研究了PVDF膜对水中刚果红的吸附性能。结果表明，PVDF膜的最佳投加质量为30 mg；在303 K下，PVDF膜的最大吸附量为64.6 mg/g；Freundlich等温模型更适合于描述刚果红的吸附行为，吸附动力学符合准二级动力学模型；热力学参数表明PVDF膜对刚果红的吸附是自发行为且为吸热反应；乙醇对吸附过刚果红的PVDF膜具有良好的脱附效果，经过8次吸附?脱附，PVDF膜对刚果红仍保持较高的吸附能力。
|
| 关 键 词： | 聚偏氟乙烯膜 刚果红 吸附 动力学 热力学 |
| 收稿时间： | 2018-05-11 |
Adsorption Properties of Congo Red from Aqueous Solutions by Porous Polyvinylidene Fluoride Membrane |
| |
| Wu Zhenyu,Gao Dasheng,Cui Shuang,Xiong Shuang,Liu Ningning,Yao Li,Shi Zhewen.Adsorption Properties of Congo Red from Aqueous Solutions by Porous Polyvinylidene Fluoride Membrane[J].Journal of Liaoning University of Petroleum & Chemical Technology,2019,39(5):30. |
| |
| Authors: | Wu Zhenyu Gao Dasheng Cui Shuang Xiong Shuang Liu Ningning Yao Li Shi Zhewen |
| |
| Affiliation: | (1.College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun Liaoning 113001, China； 2.Liaoning Academy of Analytical Science, Shenyang Liaoning 110015, China； 3.Olefin Plant of Yangzi Petrochemical Company Ltd., SINOPEC, Nanjing Jiangsu 210044, China） |
| |
| Abstract: | Porous polyvinylidene fluoride (PVDF) membrane was successfully fabricated via phase inversion method. The surface and cross?section morphologies, and thermal stability of the samples were characterized by scanning electron microscopy and thermogravimetry?differential thermal analyzer. The adsorption property of PVDF membrane for Congo Red was investigated. The results showed that the most proper dosage of PVDF membrane is 30 mg. The maximum adsorption capacity of PVDF membrane for Congo Red is 64.6 mg/g at 303 K. The isotherm data followed the Freundlich isotherm model and the kinetic adsorption obeyed the pseudo?second?order model. Thermodynamic parameters illustrated that the adsorption process was spontaneous and endothermic. Ethanol has good desorption effect on PVDF membrane adsorbed by Congo red. After 8 adsorption?desorption, PVDF membrane still maintains high adsorption capacity for Congo red. |
| |
| Keywords: | PVDF membrane Congo Red Adsorption Kinetics Thermodynamics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《辽宁石油化工大学学报》浏览原始摘要信息 |
|
点击此处可从《辽宁石油化工大学学报》下载全文 |
|
