Fabricating efficient porous sorbents to capture organophosphorus pesticide in solution
Fabricating efficient porous sorbents to capture organophosphorus pesticide in solution
复制标题
制造高效多孔吸附剂以捕获溶液中的有机磷农药
DOI：
10.1016/j.micromeso.2019.109911
复制
发表时间：
2020-03-01
影响因子：
5.2
通讯作者：
Zhu, Jian Hua
中科院分区：
文献类型：
--
作者：
Chen, Jie Ling;Gao, Ling;Zhu, Jian Hua
本文研究了乙酰甲胺磷、福美双、辛硫磷、毒死蜱、敌百虫以及多菌灵和吡虫啉等有机磷农药在水溶液中的吸附行为。在实验中使用了16种吸附剂，涉及沸石，介孔二氧化硅和活性炭，以探讨吸附剂的孔结构，形貌和表面组成如何影响液体吸附。其中，MCM-22分子筛和改性SBA-15分子筛对多菌灵和敌百虫具有较高的捕集能力。为了制备一种低成本、高效率的新型吸附剂，根据印刷电路原理，在硅胶表面包覆MgO，然后进行碱腐蚀，形成具有定制孔径和表面组成的微孔吸附剂。该改性硅胶对溶液中的福力灭和乐果具有良好的吸附效果，为开发环保型吸附剂提供了线索。
The adsorption of organophosphorus pesticides in aqueous solution was studied in this paper, including acephate, folimat, phoxim, chlorpyrifos, dipterex, and two other pesticides carbendazim and imidacloprid. Sixteen sorbents were used in the experiments, involving zeolites, mesoporous silica and activated carbon, in order to explore how the pore structure, morphology and surface composition of the sorbent affected the liquid adsorption. Among them, MCM-22 zeolite and modified SBA-15 exhibited a high capacity of capturing carbendazim and dipterex in the solution. In order to prepare a new adsorbent with low cost and high efficiency, silica gel was coated with MgO followed by alkali corrosion, in accordance with the principle of printed circuits, to form the micro-porous sorbent with the tailored pore size and surface composition. This modified silica efficiently adsorbed the folimat and rogor in solution as expected, giving a clue for the development of specific sorbent to protect environment.