TY - JOUR
T1 - Adsorptive properties in toluene removal over hierarchical zeolites
AU - Huang, Shushu
AU - Deng, Wei
AU - Zhang, Long
AU - Yang, Dengyao
AU - Gao, Qiang
AU - Tian, Zhengfang
AU - Guo, Limin
AU - Ishihara, Tatsumi
N1 - Funding Information:
The work was financially supported by National Key R&D program of China ( 2017YFE0127400 ), Natural Science Foundation of Hubei Province ( 2019CFA070 ), the Opening Project of Hubei Key Laboratory of Processing and Application of Catalytic Materials ( 201829103 ) and Program for Huazhong University of Science and Technology (HUST) Academic Frontier Youth Team ( 2018QYTD03 ). The authors thank the HUST Analysis and Testing Center of for analytical support. We really appreciate Miss Linlin Zhang from Shanghai Institute of Ceramics Chinese Academy of Sciences for her kindness and support on the TEM measurements and suggestions during the special period of coronavirus prevalence.
Funding Information:
The work was financially supported by National Key R&D program of China (2017YFE0127400), Natural Science Foundation of Hubei Province (2019CFA070), the Opening Project of Hubei Key Laboratory of Processing and Application of Catalytic Materials (201829103) and Program for Huazhong University of Science and Technology (HUST) Academic Frontier Youth Team (2018QYTD03). The authors thank the HUST Analysis and Testing Center of for analytical support. We really appreciate Miss Linlin Zhang from Shanghai Institute of Ceramics Chinese Academy of Sciences for her kindness and support on the TEM measurements and suggestions during the special period of coronavirus prevalence.
Publisher Copyright:
© 2020 Elsevier Inc.
PY - 2020/8/1
Y1 - 2020/8/1
N2 - Three kinds of hierarchical Mordenite Framework Inverted (MFI)-type nanozeolites including Si-MFI, Al-MFI and Ti-MFI were successfully synthesized by two-stage varying temperature hydrothermal treatment. Taking toluene as the probe molecule, a series of methods were used to evaluate the adsorption properties of as-synthesized hierarchical zeolites samples including the adsorption breakthrough curves, simulation of adsorption isotherms as well as kinetics models and toluene-TPD (the temperature programmed desorption of toluene). The dynamic adsorption results showed that Al-MFI exhibited the highest adsorption capacity for toluene (58 mg/gads) under dry gas condition while Ti-MFI had the optimal toluene adsorption performance (45 mg/gads) under the wet gas condition (the relative humidity was 50%). The simulation results indicated that the adsorption behavior of toluene on hierarchical MFI nanozeolites conformed to the Freundlich principle, and the pseudo-first-order adsorption model was suitable to elucidate the adsorption process. Moreover, the fitting result of intraparticle diffusion model indicated that the adsorption process was affected by multiple adsorption steps and the intraparticle diffusion was not the control step.
AB - Three kinds of hierarchical Mordenite Framework Inverted (MFI)-type nanozeolites including Si-MFI, Al-MFI and Ti-MFI were successfully synthesized by two-stage varying temperature hydrothermal treatment. Taking toluene as the probe molecule, a series of methods were used to evaluate the adsorption properties of as-synthesized hierarchical zeolites samples including the adsorption breakthrough curves, simulation of adsorption isotherms as well as kinetics models and toluene-TPD (the temperature programmed desorption of toluene). The dynamic adsorption results showed that Al-MFI exhibited the highest adsorption capacity for toluene (58 mg/gads) under dry gas condition while Ti-MFI had the optimal toluene adsorption performance (45 mg/gads) under the wet gas condition (the relative humidity was 50%). The simulation results indicated that the adsorption behavior of toluene on hierarchical MFI nanozeolites conformed to the Freundlich principle, and the pseudo-first-order adsorption model was suitable to elucidate the adsorption process. Moreover, the fitting result of intraparticle diffusion model indicated that the adsorption process was affected by multiple adsorption steps and the intraparticle diffusion was not the control step.
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U2 - 10.1016/j.micromeso.2020.110204
DO - 10.1016/j.micromeso.2020.110204
M3 - Article
AN - SCOPUS:85082863775
SN - 1387-1811
VL - 302
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
M1 - 110204
ER -