Journal
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
Volume 127, Issue -, Pages 220-227Publisher
ELSEVIER
DOI: 10.1016/j.jtice.2021.08.020
Keywords
MIL-53(Al) based composite; Biomass activated carbon; Wastewater treatment; p-nitrophenol
Categories
Ask authors/readers for more resources
This study developed a novel MIL-53(Al)@AC-x composite with high adsorption capacity for phenolic wastewater, outperforming traditional MIL-53(Al) and activated carbon. The adsorption performance of the composite increased with the AC loading, reaching a high maximum adsorption capacity.
Background: The aim of this study was to develop a class of novel MIL-53(Al) based composite with high phenolic compound adsorption capacity to treat highly toxic phenolic wastewater. Method: MIL-53(Al)@AC-x composites with different AC loading (x) were constructed by combining MIL-53 (Al) with cheap biomass AC derived from cheap rice husk. The adsorbents were characterized by various methods. Significant findings: The results showed that the surface area and pore volume of all MIL-53(Al)@AC-x composites increased remarkably, which are much higher than those of pristine AC and MIL-53(Al). The p-nitrophenol adsorption rate of MIL-53(Al)@AC-10 was higher than pristine MIL-53(Al) by 36%. The adsorption performance decreased in the order of MIL-53(Al)@AC-10 > MIL-53(Al)@AC-15 > MIL-53(Al)@AC-5 > MIL-53(Al). The maximum adsorption capacity for p-nitrophenol of MIL-53(Al)@AC-10 reached 250 mg.g(-1), which are higher than the data reported in most literature. The fabrication of AC into MIL-53(Al) is a promising method to obtain a composite with high adsorption capacity and stability. The adsorption kinetics and isotherms fitted well with pseudo-second-order model and Langmiur model. The adsorption is mainly through the pi-pi and hydrogen bond interactions, and hydrophobic effect. (C) 2021 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available