Abstract：Fe3O4@SiO2@IL was prepared by immobilizing imidazole based ionic liquids on the surface of magnetic nanoparticles with impregnation method, and was then used to remove Hg2+ in the water. The effects of pH value, adsorption time, and adsorbent dosage on the Hg2+ removal rate were investigated. The results show that Fe3O4@SiO2@ILcan have a wide application, and Hg2+ removal rate can exceed 99.1% with pH of 7.2-9.5. Fe3O4@SiO2@IL presents a high rate of Hg2+ adsorption, and the adsorption can reach equilibrium within 90 minutes. For 25 mL Hg2+ solution with a concentration of 2 μg/mL, Hg2+ can be completely removed by adding 20 mg of adsorbent. The adsorption isotherms of Fe3O4@SiO2@IL indicate that the saturated adsorption capacity of the adsorbent for Hg2+ is 548.37 mg/g.
邹文清, 何松珉. 固载离子液体材料的制备及其对水环境中汞离子的去除[J]. 矿冶工程, 2024, 44(1): 161-165.
ZOU Wenqing, HE Songmin. Preparation of Immobilized Ionic Liquid and Removal of Mercury Ions in Water. Mining and Metallurgical Engineering, 2024, 44(1): 161-165.
[1] Sousa J C G, Ribeiro A R, Barbosa M O, et al. A review on environmental monitoring of water organic pollutants identified by EU guidelines[J]. Journal of Hazardous Materials, 2018,344:146-162.
[2] 侯 淋,李 霞,王丽琼. 环糊精聚合物吸附剂的制备及其应用研究[J]. 化学通报, 2023,86(4):420-428.
[3] 谢静怡,赵晟锌,陈忠林,等. 粉煤灰基吸附剂去除水中重金属的研究进展[J]. 环境科学与技术, 2023,46(增刊1):116-124.
[4] 张艳红,刘伟京,尤本胜,等. 用于电镀废水处理的膜技术研究进展[J]. 膜科学与技术, 2021,41(4):147-153.
[5] 关永年. 高排放标准下某高新园区污水处理厂工程实例[J]. 给水排水, 2022,58(12):89-94.
[6] Ahmed M B, ZHOU J L, Ngo H H, et al. Progress in the biological and chemical treatment technologies for emerging contaminant removal from wastewater: A critical review[J]. Journal of Hazardous Materials, 2017,323:274-298.
[7] Kumar P, Pournara A, Kim K H, et al. Metal-organic frameworks: Challenges and opportunities for ion-exchange/sorption applications[J].Progress in Materials Science, 2017,86:25-74.
[8] 李 飞,彭苗苗,胡智怡,等. 酸溶液中溶剂萃取法分离钼(Ⅵ)/铁(Ⅲ)的研究进展[J]. 矿冶工程, 2023,43(2):118-124.
[9] 张之浩,李 威. 活性炭联合植物修复对水中铬的去除效果研究[J].矿冶工程, 2021,41(4):113-116.
[10] Amirfirouzkouhi H, Kharat A N. Application of ionic liquids as recyclable green catalysts for selective alkylation of phenol[J]. Separation and Purification Technology, 2018,196:132-139.
[11] LI L, LIU F, DUAN H, et al. The preparation of novel adsorbent materials with efficient adsorption performance for both chromium and methylene blue[J].Colloids and Surfaces B: Biointerfaces, 2016,141:253-259.
[12] Abbas T, Gonfa G, Lethesh K C, et al. Mercury capture from natural gas by carbon supported ionic liquids: Synthesis, evaluation and molecular mechanism[J]. Fuel, 2016,177:296-303.
[13] Ismaiel A A, Aroua M K, Yusoff R. Palm shell activated carbon impregnated with task-specific ionic-liquids as a novel adsorbent for the removal of mercury from contaminated water[J]. Chemical Engineering Journal, 2013,225:306-314.
[14] 李志超,兰华春,武利园,等. 活性焦对水中汞的吸附性能[J]. 环境工程学报, 2014(5):1899-1905.
[15] Yardim M F, Budinova T, Ekinci E, et al. Removal of mercury (II) from aqueous solution by activated carbon obtained from furfural[J]. Chemosphere, 2003,52:835-841.
[16] 符 浩,魏钟波,王翠兰,等. 偶联剂改性凹凸棒土处理含汞(Ⅱ)废水的研究[J]. 环境工程学报, 2011(5):1106-1110.
2024, Vol. 44 
