Adsorption Capacity of Tetracycline in Solution by Cu-BTC@Carboxyl-Functionalized Carbon Nanotubes@Copper Alginate Composite Aerogel Beads
نویسندگان
چکیده
In order to remove tetracycline (TC) from sewage more effectively, the adsorption performance of TC on alginate composite aerogel beads containing carbon nanomaterials was studied systematically. Carboxylated functionalized nanotubes (F-CNTs)@Cu-based metal-organic framework (Cu-BTC) nanomaterial composites (F-C) were prepared by a hydrothermal method, and F-C powders coated fixed macromolecular polymer copper (CA). Then, F-CNTs@Cu-BTC@CA (F-C-CA) vacuum freeze-drying method. The new characterized BET, SEM, FTIR, TGA, its physical chemical properties analyzed. results batch experiments showed that F-C-CA had excellent capacity for TC. At 303 K, 10 mg adsorbed 20 mL 100 mg·L?1 solution; removal rate reached 94% after 48 h. After kinetic analysis, process found be coherent with pseudo-second-order model (chemisorption process). isotherm fitting analysis indicated behavior suitable Langmuir (monolayer adsorption), fitted maximum 297 mg·g?1.
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ژورنال
عنوان ژورنال: Coatings
سال: 2022
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings12091298