| 氧化石墨烯修饰MoS2-PAN吸附膜对铜离子吸附性能的影响 |
| |
| 引用本文： | 王伟, 杨树成, 艾玉鑫. 氧化石墨烯修饰MoS2-PAN吸附膜对铜离子吸附性能的影响[J]. 环境工程学报, 2023, 17(1): 24-33. doi: 10.12030/j.cjee.202209018 |
| |
| 作者姓名： | 王伟 杨树成 艾玉鑫 |
| |
| 作者单位： | 1.西安交通大学能源与动力工程学院，西安 710049; 2.中国能源建设集团西北电力试验研究院有限公司，西安 710054; 3.浙江大学化学工程与生物工程学院，杭州 310014 |
| |
| 摘 要： | 通过氧化石墨烯(GO)对硫化钼(MoS2)-聚丙烯腈(PAN)进行改性处理，采用相转化法成功制备了对水溶液中Cu2+进行吸附的GO-MoS2-PAN改性吸附膜。通过扫描电镜(SEM)、傅里叶变换红外光谱(FTIR)及接触角测试对该吸附剂材料进行了表征。探究了不同GO固含量对GO-MoS2-PAN改性吸附膜的孔隙率、纯水通量以及接触角的影响。在pH为5、Cu2+质量浓度为100 mg·L-1的溶液中，GO固含量为0.03%的改性吸附膜对Cu2+的最大平衡吸附量达到224.28 mg·g-1，且其脱附率为84%。结果表明，改性吸附膜对溶液中Cu2+的吸附动力学符合准二级动力学模型，等温吸附过程符合Freundlich等温吸附模型，热力学分析结果表明该吸附过程为自发吸热过程。
|
| 关 键 词： | 氧化石墨烯 改性吸附膜 Cu2+ |
| 收稿时间： | 2022-09-04 |
Adsorption performance of GO-MoS2-PAN membrane toward copper ions |
| |
| WANG Wei, YANG Shucheng, AI Yuxin. Adsorption performance of GO-MoS2-PAN membrane toward copper ions[J]. Chinese Journal of Environmental Engineering, 2023, 17(1): 24-33. doi: 10.12030/j.cjee.202209018 |
| |
| Authors: | WANG Wei YANG Shucheng AI Yuxin |
| |
| Affiliation: | 1.School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China; 2.Northwest Electric Power Test & Research Institute Co. Ltd., Xi’an 710054, China; 3.College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310014, China |
| |
| Abstract: | Molybdenum sulfide (MoS2)-polyacrylonitrile (PAN) was modified by GO, and GO-MoS2-PAN modified adsorbent membrane was prepared by phase inversion method for Cu2+ adsorption from aqueous solution. The adsorbents were characterized by scanning electron microscopy (SEM), Fourier transformed infrared spectroscopy (FTIR) and contact angle test. The effects of different GO solid content on the porosity, pure water flux and contact angle of GO-MoS2-PAN modified adsorbent membrane were investigated. When the pH of solution was 5 and the mass concentration of Cu2+ was 100 mg·L−1, the maximum equilibrium adsorption capacity of the modified adsorption membrane with 0.03% solid content of GO toward Cu2+ was 224.28 mg·g−1, and its desorption rate was 84%. The adsorption kinetic data fitted well to the pseudo-second-order model, and the isothermal adsorption data fitted well to Frenudlich isotherm model. The thermodynamic analysis indicated that the adsorption process was spontaneous and endothermic. |
| |
| Keywords: | GO modified adsorbent membrane copper ions |
|
| 点击此处可从《环境工程学报》浏览原始摘要信息 |
|
点击此处可从《环境工程学报》下载全文 |
