Highly Efficient Luminescent Metal–Organic Framework for the Simultaneous Detection and Removal of Heavy Metals from Water
Abstract
For this work, we have designed and synthesized an isoreticular series of luminescent metal-organic frameworks (LMOFs) by incorporating a strongly emissive molecular fluorophore and functionally diverse colinkers into Zn-based structures. The three-dimensional porous networks of LMOF-261, -262, and -263 represent a unique/new type of nets, classified as a 2-nodal, (4,4)-c net (mot-e type) with 4-fold, class IIIa interpenetration. All compounds crystallize in a body-centered tetragonal crystal system (space group I41/a). A systematic study has been implemented to analyze their interactions with heavy metals. LMOF-263 exhibits impressive water stability, high porosity, and strong luminescence, making it an excellent candidate as a fluorescent chemical sensor and adsorbent for aqueous contaminants. It is extremely responsive to toxic heavy metals at a parts per billion level (3.3 ppb Hg2+, 19.7 ppb Pb2+) and demonstrates high selectivity for heavy metals over light metals, with detection ratios of 167.4 and 209.5 for Hg2+/Ca2+ and Hg2+/Mg2+, respectively. Mixed-metal adsorption experiments also show that LMOF-263 selectively adsorbs Hg2+ over other heavy metal ions in addition to light metals. The Pb2+ KSV value for LMOF-263 (55,017 M-1) is the highest among LMOFs reported to date, and the Hg2+ KSV value is the second highest (459,446 M-1). LMOF-263 exhibits amore »
- Authors:
-
- Rutgers Univ., Piscataway, NJ (United States). Dept. of Chemistry and Chemical Biology
- Univ. of Texas-Dallas, Richardson, TX (United States). Dept. of Materials Science and Engineering
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Rider Univ., Lawrenceville, NJ (United States). Dept. of Chemistry, Biochemistry and Physics
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Horiba, Ltd., Kyoto (Japan)
- OSTI Identifier:
- 1436604
- Grant/Contract Number:
- AC02-05CH11231; FG02-08ER-46491
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Applied Materials and Interfaces
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 44; Journal ID: ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 54 ENVIRONMENTAL SCIENCES; heavy metal adsorption; heavy metal detection; isoreticular series; ligand-based emission; luminescent metal−organic framework
Citation Formats
Rudd, Nathan D., Wang, Hao, Fuentes-Fernandez, Erika M. A., Teat, Simon J., Chen, Feng, Hall, Gene, Chabal, Yves J., and Li, Jing. Highly Efficient Luminescent Metal–Organic Framework for the Simultaneous Detection and Removal of Heavy Metals from Water. United States: N. p., 2016.
Web. doi:10.1021/acsami.6b10890.
Rudd, Nathan D., Wang, Hao, Fuentes-Fernandez, Erika M. A., Teat, Simon J., Chen, Feng, Hall, Gene, Chabal, Yves J., & Li, Jing. Highly Efficient Luminescent Metal–Organic Framework for the Simultaneous Detection and Removal of Heavy Metals from Water. United States. https://doi.org/10.1021/acsami.6b10890
Rudd, Nathan D., Wang, Hao, Fuentes-Fernandez, Erika M. A., Teat, Simon J., Chen, Feng, Hall, Gene, Chabal, Yves J., and Li, Jing. Thu .
"Highly Efficient Luminescent Metal–Organic Framework for the Simultaneous Detection and Removal of Heavy Metals from Water". United States. https://doi.org/10.1021/acsami.6b10890. https://www.osti.gov/servlets/purl/1436604.
@article{osti_1436604,
title = {Highly Efficient Luminescent Metal–Organic Framework for the Simultaneous Detection and Removal of Heavy Metals from Water},
author = {Rudd, Nathan D. and Wang, Hao and Fuentes-Fernandez, Erika M. A. and Teat, Simon J. and Chen, Feng and Hall, Gene and Chabal, Yves J. and Li, Jing},
abstractNote = {For this work, we have designed and synthesized an isoreticular series of luminescent metal-organic frameworks (LMOFs) by incorporating a strongly emissive molecular fluorophore and functionally diverse colinkers into Zn-based structures. The three-dimensional porous networks of LMOF-261, -262, and -263 represent a unique/new type of nets, classified as a 2-nodal, (4,4)-c net (mot-e type) with 4-fold, class IIIa interpenetration. All compounds crystallize in a body-centered tetragonal crystal system (space group I41/a). A systematic study has been implemented to analyze their interactions with heavy metals. LMOF-263 exhibits impressive water stability, high porosity, and strong luminescence, making it an excellent candidate as a fluorescent chemical sensor and adsorbent for aqueous contaminants. It is extremely responsive to toxic heavy metals at a parts per billion level (3.3 ppb Hg2+, 19.7 ppb Pb2+) and demonstrates high selectivity for heavy metals over light metals, with detection ratios of 167.4 and 209.5 for Hg2+/Ca2+ and Hg2+/Mg2+, respectively. Mixed-metal adsorption experiments also show that LMOF-263 selectively adsorbs Hg2+ over other heavy metal ions in addition to light metals. The Pb2+ KSV value for LMOF-263 (55,017 M-1) is the highest among LMOFs reported to date, and the Hg2+ KSV value is the second highest (459,446 M-1). LMOF-263 exhibits a maximum adsorption capacity of 380 mg Hg2+/g. The Hg2+ adsorption process follows pseudo-second-order kinetics, removing 99.1% of the metal within 30 min. An in situ XPS study provides insight to help understand the interaction mechanism between Hg2+ and LMOF-263. No other MOFs have demonstrated such a high performance in both the detection and the capture of Hg2+ from aqueous solution.},
doi = {10.1021/acsami.6b10890},
journal = {ACS Applied Materials and Interfaces},
number = 44,
volume = 8,
place = {United States},
year = {Thu Oct 13 00:00:00 EDT 2016},
month = {Thu Oct 13 00:00:00 EDT 2016}
}
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