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作者:

Alamgir (Alamgir.) | Talha, Khalid (Talha, Khalid.) | Wang, Bin (Wang, Bin.) | Liu, Jing-Hao (Liu, Jing-Hao.) | Ullah, Raza (Ullah, Raza.) | Feng, Fan (Feng, Fan.) | Yu, Jiamei (Yu, Jiamei.) | Chen, Sha (Chen, Sha.) (学者:陈莎) | Li, Jian-Rong (Li, Jian-Rong.) (学者:李建荣)

收录:

EI SCIE

摘要:

The adsorptive removal of antibiotics, emerging organic pollutants in water is very important but challenging. In this work we report a series of eight water stable metal-organic framework (MOFs), which are methodically screened for the removal of metronidazole (MNZ) from water. It was found that two isostructural Zr(IV)-MOFs (UiO-66 and UiO-66-NH2) showed adsorption capacities of around 200.2 mg g(-1) and 265.5 mg g(-1), respectively, which are higher than the experimental values of reported porous materials used for MNZ removal so far. The MOFs were characterized by Powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR) spectroscopy, Thermogravimetric analysis (TGA), Scanning electron microscope (SEM), Energy-dispersive X-ray elemental analysis (EDX), BET isotherm, UV-vis (UV-vis) spectrophotometer and NICOMPT 380 ZLS. The effects of various parameters including time, concentration, temperature and pH were investigated. The adsorption mechanism of UiO-66-NH2 for MNZ has also been explored through computational simulations. The results showed that MNZ molecules are mainly locate at around the -NH2 functional groups in pore surfaces of UiO-66-NH2, with the increase of molecular level of the amino groups, the affinity of the framework to MNZ could be significantly increased. The results demonstrated that highest adsorption uptake by UiO-66-NH2 was attributed to -NH2 functional group including with (hydrogen bonding interactions, electrostatic interaction and larger pHpzc). The adsorption process of the two MOFs fitted the pseudo-second-order kinetic model and Langmuir isothermal model, whilst the adsorption was endothermic, with the confirmation by thermodynamic studies.

关键词:

Adsorptive removal Computational simulations Metal-organic frameworks Metronidazole

作者机构:

  • [ 1 ] [Alamgir]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 2 ] [Talha, Khalid]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Bin]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 4 ] [Ullah, Raza]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 5 ] [Li, Jian-Rong]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 6 ] [Feng, Fan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Reg Air Pollut Control, Beijing 100124, Peoples R China
  • [ 7 ] [Chen, Sha]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Reg Air Pollut Control, Beijing 100124, Peoples R China
  • [ 8 ] [Liu, Jing-Hao]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 9 ] [Yu, Jiamei]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 陈莎 李建荣

    [Li, Jian-Rong]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China;;[Chen, Sha]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Reg Air Pollut Control, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

年份: 2020

期: 1

卷: 8

7 . 7 0 0

JCR@2022

JCR分区:1

被引次数:

WoS核心集被引频次: 68

SCOPUS被引频次: 75

ESI高被引论文在榜: 0 展开所有

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