Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 342, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2021.117572
Keywords
Copper nanoparticles; Poly(ionic liquid)s; Composites; Click synthesis; Surfactant-free ionic liquid microemulsions
Funding
- Natural Science Foundation of Shandong Province [ZR2020LFG003, ZR2019PB014]
- Program of Guangdong Provincial Key Lab of Green Chemical Product Technology [GC201820]
- School Scientific Research Foundation for Introduced Talent [LA2016001]
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The facile synthesis of Cu-NPs/poly-IL composites was achieved for the first time, showing enhanced thermal stability and adsorption capacity, as well as certain catalytic reduction effects for MO and DR in water treatment. The designed composites exhibit remarkable potentials for wastewater treatment and purification.
Herein, we present for the first time the facile synthesis of copper nanoparticles/poly(ionic liquid) (Cu-NPs/poly-IL) composites through the in situ click method within surfactant-free ionic liquid microemulsions. The resultant Cu-NPs/poly-IL composites were further utilized for physical adsorption and chemical catalytic reduction of methyl orange (MO) and dispersed red (DR) in water. FTIR, NMR, XRD, TGA, DSC, SEM, and UV-vis methods were used to investigate the structure and characteristics of the designed Cu-NPs/poly-IL composites. Results showed that Cu-NPs were successfully and stably introduced on poly-ILs without oxidation and that resultant composites presented enhanced thermostability and adsorption capacity for the DR. Detailed kinetic studies and thermodynamic analysis of the adsorption process were carried out. Furthermore, the catalytic reduction performance of Cu-NPs/poly-IL composites for MO and DR was investigated, and results indicated that the designed composites had certain catalytic reduction effects. Therefore, the easily synthesized Cu-NPs/poly-IL composites show remarkable potentials for wastewater treatment and purification. (C) 2021 Elsevier B.V. All rights reserved.
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