期刊
NEW JOURNAL OF CHEMISTRY
卷 46, 期 40, 页码 19542-19554出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2nj04264a
关键词
-
资金
- Program of Science and Technology of Zhejiang Province, China [LGG22B070002, LGG19B070001]
Novel resin-based MOF composites were prepared using the layer-by-layer self-assembly method, and their adsorption performance was influenced by the synergistic effect of resin groups and MOFs.
A series of novel resin-based MOF composites Co-MOF@D113-N (N = 1, 6) were prepared using 2-methylimidazole, cobalt acetate and D113 resin, through the layer-by-layer self-assembly method. The Co-MOF presented an amorphous form with the inducement of resin groups and the loading capacity increased with the number of self-assembled layers. The strong anchoring effect between Co and N effectively improved the thermal stability of the composites. The adsorption experiments showed that the adsorption capacity of the Co-MOF@D113-6 resin for Cu(ii) increased with temperature in the range of 283-303 K. The adsorption capacity of Co-MOF@D113-6 for Cu(ii) increased under the synergistic effect of MOFs and D113. The maximum adsorption capacity of Co-MOF@D113-6 was 273.88 mg g(-1). The fitting results showed that the adsorption of Cu(ii) by the Co-MOF@D113-6 conformed to the pseudo-second-order kinetic model dominated by chemisorption, and also conformed to the preferential Freundlich adsorption isotherm model. A low cost resin carrier combined with a high efficiency MOF composite adsorption material provided high efficiency and low consumption for promising development.
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