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Title: Highly efficient removal of both cationic and anionic dyes from wastewater with a water-stable and eco-friendly Fe-MOF via host-guest encapsulation

Abstract

Here, a water-stable cationic Fe based metal organic framework, CPM-97-Fe, was successfully synthesized in a large scale by a modified method (CPM: Crystalline Porous Materials). The adsorption behaviors, including removal efficiency, adsorption kinetics and isotherms of nine hazardous dyes in wastewater were investigated with different pH and organic solvents. The pseudo-second-order adsorption rate constant follows the order of Reactive Brilliant Red X-3B (X-3B, 0.0205 g mg -1 min -1) > Acid orange 7 (AO7, 0.0112 g mg -1 min -1) > Congo Red (CR, 0.0080 g mg -1 min -1) > Methylene Blue (MB, 0.0061 g mg -1 min -1) > Rhodamine B (RhB, 0.0049 g mg -1 min -1) > Croscein Scarlet 3B (CS3B, 0.0041 g mg -1 min -1) > Methyl Blue (MB, 0.0017 g mg -1 min -1) = New Coccine (NC, 0.0017 g mg -1 min -1) > Acid Black 1 (AB1, 0.0014 g mg -1 min -1). It is found that the adsorption quasi-equilibrium can reach quickly within 30 min, but the dyes with proper structure (i.e. proper distance between two sulfonic groups, less azo benzene hindrance effect, more reactive Cl groups, and more benzene rings), smaller molecular size, more negative charges, lower molecular massmore » favor the faster adsorption. The adsorption capacity obeys another sequence of CR (831 mg g -1) > X-3B (648 mg g -1) > AO7 (502 mg g -1) > MLB (380 mg g -1) > CS3B (356 mg g -1) > AB1 (325 mg g -1) > RhB (306 mg g -1) > MB (304 mg g -1) > NC (157 mg g -1). It is disclosed that CPM-97-Fe can adsorb more dyes with larger molecular mass, less negative charges, and a proper structure. Especially for Congo red, the adsorption capacity on CPM-97-Fe is 831 mgg -1, 8.1 times that on activated carbon (103 mgg -1). Even the adsorption capacities of very bulky Rhodamine B and Methyl Blue reach as high as 306 and 304 mgg -1, respectively, ranking the highest level among MOF materials. Moreover, the special structure of CPM-97-Fe with big open windows and high specific surface area of 1397.0 m 2 g -1 contributes to the fast adsorption and high capacity towards all investigated dyes via the host-guest encapsulation mechanism including electrostatic interaction, ion exchange, π-π stacking interaction, as well as pore filling.« less

Authors:
 [1];  [2];  [2];  [3];  [3];  [4]
  1. Sun Yat-Sen Univ., Guangzhou (China); Univ. of California, Riverside, CA (United States); Guangdong Provincial Key Lab. of Environmental Pollution Control and Remediation Technology (China)
  2. Sun Yat-Sen Univ., Guangzhou (China)
  3. Sun Yat-Sen Univ., Guangzhou (China); Guangdong Provincial Key Lab. of Environmental Pollution Control and Remediation Technology (China)
  4. Univ. of California, Riverside, CA (United States)
Publication Date:
Research Org.:
Univ. of California, Riverside, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Natural Science Foundation of China (NNSFC)
OSTI Identifier:
1596529
Grant/Contract Number:  
SC0010596
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Cleaner Production
Additional Journal Information:
Journal Volume: 239; Journal Issue: C; Journal ID: ISSN 0959-6526
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Metal organic framework; Crystalline porous materials; Adsorption; Dye removal; Wastewater treatment

Citation Formats

Tian, Shuanghong, Xu, Shuang, Liu, Jinting, He, Chun, Xiong, Ya, and Feng, Pingyun. Highly efficient removal of both cationic and anionic dyes from wastewater with a water-stable and eco-friendly Fe-MOF via host-guest encapsulation. United States: N. p., 2019. Web. doi:10.1016/j.jclepro.2019.117767.
Tian, Shuanghong, Xu, Shuang, Liu, Jinting, He, Chun, Xiong, Ya, & Feng, Pingyun. Highly efficient removal of both cationic and anionic dyes from wastewater with a water-stable and eco-friendly Fe-MOF via host-guest encapsulation. United States. https://doi.org/10.1016/j.jclepro.2019.117767
Tian, Shuanghong, Xu, Shuang, Liu, Jinting, He, Chun, Xiong, Ya, and Feng, Pingyun. Mon . "Highly efficient removal of both cationic and anionic dyes from wastewater with a water-stable and eco-friendly Fe-MOF via host-guest encapsulation". United States. https://doi.org/10.1016/j.jclepro.2019.117767. https://www.osti.gov/servlets/purl/1596529.
@article{osti_1596529,
title = {Highly efficient removal of both cationic and anionic dyes from wastewater with a water-stable and eco-friendly Fe-MOF via host-guest encapsulation},
author = {Tian, Shuanghong and Xu, Shuang and Liu, Jinting and He, Chun and Xiong, Ya and Feng, Pingyun},
abstractNote = {Here, a water-stable cationic Fe based metal organic framework, CPM-97-Fe, was successfully synthesized in a large scale by a modified method (CPM: Crystalline Porous Materials). The adsorption behaviors, including removal efficiency, adsorption kinetics and isotherms of nine hazardous dyes in wastewater were investigated with different pH and organic solvents. The pseudo-second-order adsorption rate constant follows the order of Reactive Brilliant Red X-3B (X-3B, 0.0205 g mg-1 min-1) > Acid orange 7 (AO7, 0.0112 g mg-1 min-1) > Congo Red (CR, 0.0080 g mg-1 min-1) > Methylene Blue (MB, 0.0061 g mg-1 min-1) > Rhodamine B (RhB, 0.0049 g mg-1 min-1) > Croscein Scarlet 3B (CS3B, 0.0041 g mg-1 min-1) > Methyl Blue (MB, 0.0017 g mg-1 min-1) = New Coccine (NC, 0.0017 g mg-1 min-1) > Acid Black 1 (AB1, 0.0014 g mg-1 min-1). It is found that the adsorption quasi-equilibrium can reach quickly within 30 min, but the dyes with proper structure (i.e. proper distance between two sulfonic groups, less azo benzene hindrance effect, more reactive Cl groups, and more benzene rings), smaller molecular size, more negative charges, lower molecular mass favor the faster adsorption. The adsorption capacity obeys another sequence of CR (831 mg g-1) > X-3B (648 mg g-1) > AO7 (502 mg g-1) > MLB (380 mg g-1) > CS3B (356 mg g-1) > AB1 (325 mg g-1) > RhB (306 mg g-1) > MB (304 mg g-1) > NC (157 mg g-1). It is disclosed that CPM-97-Fe can adsorb more dyes with larger molecular mass, less negative charges, and a proper structure. Especially for Congo red, the adsorption capacity on CPM-97-Fe is 831 mgg-1, 8.1 times that on activated carbon (103 mgg-1). Even the adsorption capacities of very bulky Rhodamine B and Methyl Blue reach as high as 306 and 304 mgg-1, respectively, ranking the highest level among MOF materials. Moreover, the special structure of CPM-97-Fe with big open windows and high specific surface area of 1397.0 m2 g-1 contributes to the fast adsorption and high capacity towards all investigated dyes via the host-guest encapsulation mechanism including electrostatic interaction, ion exchange, π-π stacking interaction, as well as pore filling.},
doi = {10.1016/j.jclepro.2019.117767},
url = {https://www.osti.gov/biblio/1596529}, journal = {Journal of Cleaner Production},
issn = {0959-6526},
number = C,
volume = 239,
place = {United States},
year = {2019},
month = {8}
}

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