期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：4
页码：1-12
DOI：10.1088/1755-1315/252/4/042068
出版社：IOP Publishing
摘要：In order to avoid the secondary pollution of adsorbent, the magnetic nanomaterials were modified by special groups to realize the rapid and efficient removal of heavy metal ions in wastewater and the recovery and reuse of adsorbent. On the carrier of Fe3O4 magnetic nanomaterials preparation of adsorbent Fe3O4@SiO2, carboxymethyl-β-cyclodextrins, and carries on the related research tests due to the conclusion: (1) the maximum adsorption capacity of Pb2 + and Cd2 + 67.75 mg/g and 27.56 mg/g, removal rate of 86.8% and 83.6%; (2) the optimal pH of the adsorbent is 5.5, the acid and alkali resistance is better and its resistance to alkali is better than the acid resistance; (3) the increase of ionic strength in solution reduces the equilibrium adsorption of adsorbent.
