An easily-synthesized low carbon ionic liquid functionalized metal-organic framework composite material to remove Congo red from water

Bibliographic Details
Title: An easily-synthesized low carbon ionic liquid functionalized metal-organic framework composite material to remove Congo red from water
Authors: Hanbing Li, Jiaying Fei, Sha Chen, Kevin C. Jones, Sumei Li, Wenjuan Chen, Yixuan Liang
Source: Water Cycle, Vol 4, Iss , Pp 127-134 (2023)
Publisher Information: KeAi Communications Co., Ltd., 2023.
Publication Year: 2023
Collection: LCC:Environmental technology. Sanitary engineering
Subject Terms: Ionic liquid, Metal-organic framework, Organic dye, Adsorbent, Organic contamination remediation, Environmental technology. Sanitary engineering, TD1-1066
More Details: Congo red (CR) is documented as a typical azo dye compound that is widely used for industrial activities such as papermaking, textiles, leather and additives production, making it a main component of COD contaminants in industrial wastewaters. Excessive releases of CR have resulted in adverse impacts on water environments and ecological systems due to its non-biodegradable, toxic and carcinogenic properties. Therefore, the removal of CR from water environments is of important for wastewater treatment. Previous studies have proved that metal-organic frameworks (MOFs) were feasible for CR adsorption, but less stable in water environments. Several functionalized materials have therefore been used to produce MOF-derived composite material for better performance. To simplify the synthesis processes and reduce the energy consumption, an ionic liquid (IL) was used in this study for the synthesis of [BMIM][PF6]/ZIF-8 (BP/Z) composite material. The morphological structure of this material remained stable after the incorporation of IL. The equilibrium time of CR adsorption was 90 ​min with a maximum adsorption capacity of 1463 ​mg/g. Isotherm and kinetic studies revealed that the adsorption process was better described by Langmuir and pseudo-second-order model. Our results also presented that the IL/MOF composite material can be used within pH 5 and 6 with the presence of Na+, K+, Mg2+, Ca2+, Cl− and SO42−. It was also proved that the novel IL/MOF composites in this study have great potential to adsorb and remove organic dyes from water.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2666-4453
Relation: http://www.sciencedirect.com/science/article/pii/S266644532300017X; https://doaj.org/toc/2666-4453
DOI: 10.1016/j.watcyc.2023.05.004
Access URL: https://doaj.org/article/138b8fb4dd454948bfb5e635c61fb3ff
Accession Number: edsdoj.138b8fb4dd454948bfb5e635c61fb3ff
Database: Directory of Open Access Journals
More Details
ISSN:26664453
DOI:10.1016/j.watcyc.2023.05.004
Published in:Water Cycle
Language:English