Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea.
Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea.
J Hazard Mater. 2019 Oct 15;378:120761. doi: 10.1016/j.jhazmat.2019.120761. Epub 2019 Jun 12.
Nitrogen-containing carbons were obtained via pyrolysis of melamine-loaded metal azolate frameworks (named mela@MAF-6), a sub-class of metal organic frameworks. The porosity and defect concentration of the obtained carbons (named as CDM@M-6) were dependent on the quantity of melamine loaded in the mela@MAF-6. The CDM@M-6 s were applied for the adsorptive removal of nitroimidazole antibiotics (NIABs) from water; the performance of CDM@M-6, particularly CDM(0.25)@M-6, was outstanding for the elimination of NIABs such as dimetridazole (DMZ), metronidazole (MNZ), and menidazole (MZ)) from water. The adsorption capacity of CDM(0.25)@M-6 for DMZ, MNZ, and MZ was higher than that of any adsorbent reported so far. The highest adsorptive performance of CDM(0.25)@M-6 for DMZ (Q: 621 mg/g) and MNZ (Q: 702 mg/g) was explained by hydrogen bonding, where CDM@M-6 and DMZ/MNZ acted as a H-donor and H-acceptor, respectively. In addition, CDM(0.25)@M-6 could be regenerated via ethanol washing and reused for next cycles without any severe decrease in performance. Therefore, CDM@M-6 is recommended as a suitable adsorbent for the elimination of NIABs from water.
含氮碳通过负载三聚氰胺的金属唑框架（命名为 mela@MAF-6）的热解得到，mela@MAF-6 是金属有机框架的一个子类。所得碳（命名为 CDM@M-6）的孔隙率和缺陷浓度取决于 mela@MAF-6 中三聚氰胺的负载量。CDM@M-6 被应用于从水中吸附去除硝基咪唑类抗生素（NIABs）；CDM@M-6 的性能，特别是 CDM(0.25)@M-6，对于消除水中的硝基咪唑类抗生素如二甲硝唑（DMZ）、甲硝唑（MNZ）和灭滴灵（MZ）等具有出色的效果。CDM(0.25)@M-6 对 DMZ、MNZ 和 MZ 的吸附容量高于迄今为止报道的任何吸附剂。CDM(0.25)@M-6 对 DMZ（Q:621mg/g）和 MNZ（Q:702mg/g）的最高吸附性能可通过氢键解释，其中 CDM@M-6 和 DMZ/MNZ 分别作为 H-供体和 H-受体。此外，CDM(0.25)@M-6 可以通过乙醇洗涤再生，并在不严重降低性能的情况下重复用于下一个循环。因此，CDM@M-6 被推荐为从水中去除 NIABs 的合适吸附剂。
