Adsorption of Sulfamethoxazole on Nanoporous Carbon Derived from Metal-Organic Frameworks

• 作者: Xie Quan Yuxin Li
• 来源期刊: 地球科学和环境保护期刊(英文)
• 学科: 化学
• 关键词: METAL-ORGANIC Frameworks SULFAMETHOXAZOLE ADSORPTION Mic/Mesopore
• 年，卷（期）: 2017,（6）
• 页码范围: 1-8
• 页数: 8页
• 分类号: O6

摘要

Nanoporous Carbon (NPC) with high surface area of 1379 M2/G and high proportion of micropore and mesopore volume of 2.90 Cm3/G was prepared by carbonization of metal?organic frameworks ZIF-8. The adsorption of NPC towards the representative sulfonamide antibiotics sulfamethoxazole (SMX) from aqueous solutions was explored, in comparison with powder active carbon (AC). The adsorption kinetics and isotherms showed that the maximum adsorption capacity (Qm) of NPC toward SMX was 757 Mg/G, around 2 times than that of AC adsorption. The high adsorption affinity of NPC was related to the high surface area and special Mic/Mesopore structure. The pore-filling mechanism as well as electrostatic interaction had important influence on the high adsorption of NPC. The results implied that nanoporous carbon derived from mofs could remove the contaminants from aqueous solutions effectively, and would be a promising adsorbent for the removal of contaminants in the future.