TITLE:
Adsorption of Sulfamethoxazole on Nanoporous Carbon Derived from Metal-Organic Frameworks
AUTHORS:
Yuxin Li, Xie Quan
KEYWORDS:
Metal-Organic Frameworks, Sulfamethoxazole, Adsorption, Mic/Mesopore
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.5 No.6,
June
12,
2017
ABSTRACT:
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.