| Autor: |
Feng, Jiangli, Sun, Hui, Yu, Bin, Yang, Xiaodong, Xu, Lei, Liu, Peng, Cui, Xiaogang |
| Zdroj: |
Fibers & Polymers; Jun2023, Vol. 24 Issue 6, p1983-1994, 12p |
| Abstrakt: |
A kind of NH2-MIL-101(Fe)@viscose spunlaced nonwoven material (VSN) was prepared by in situ solvothermal method for the adsorption of organic dyes in wastewater and then carbonized in a tube furnace under N2 atmosphere at 300 °C to improve the adsorption performances. The results showed that the synthesized NH2-MIL-101(Fe) particles with a polyhedral structure were uniformly loaded on the VSN surface. After being carbonized, the NH2-MIL-101(Fe)@viscose spunlaced nonwoven porous carbon material (VSNC) were obtained. Compared with uncarbonized NH2-MIL-101(Fe)@VSN, the adsorption efficiency of NH2-MIL-101(Fe)@VSNC for methylene blue (MB) significantly enhanced and could reach 98.3% under the condition of water bath temperature of 30 °C and pH 9. According to adsorption thermodynamic analysis, the MB adsorption process by NH2-MIL-101(Fe)@VSNC was spontaneous. The quasi-secondary adsorption kinetic model was more suitable to describe the whole adsorption process of NH2-MIL-101(Fe)@VSNC, implying that the adsorption mechanism of NH2-MIL-101(Fe)@VSNC for MB was mainly chemical adsorption. NH2-MIL-101(Fe)@VSNC presented good structure stability and reusability during the adsorption process. After being recycled five times, the MB adsorption efficiency still maintained about 86.3%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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