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Tao CA, Wang B, Zhao H, Yang X, Huang J, Wang J. Starfruit-Shaped Zirconium Metal-Organic Frameworks: From 3D Intermediates to 2D Nanosheet Petals with Enhanced Catalytic Activity. Chemistry 2024; 30:e202400052. [PMID: 38224210 DOI: 10.1002/chem.202400052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Invited for the cover of this issue is the group of Cheng-an Tao, Jianfang Wang and co-workers at the University of Defense Technology. The image depicts a novel starfruit-shaped metal-organic framework composed of zirconium and tetra(4-carboxyphenyl)porphine linkers and characterized by 2D nanosheet petals grown through edge-sharing that showcases superior catalytic activity. Read the full text of the article at 10.1002/chem.202302835.
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Affiliation(s)
- Cheng-An Tao
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Beibei Wang
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - He Zhao
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Xuheng Yang
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Jian Huang
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Jianfang Wang
- College of Science, National University of Defense Technology, Changsha, 410073, China
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2
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Tao CA, Wang B, Zhao H, Yang X, Huang J, Wang J. Starfruit-Shaped Zirconium Metal-Organic Frameworks: From 3D Intermediates to 2D Nanosheet Petals with Enhanced Catalytic Activity. Chemistry 2024; 30:e202302835. [PMID: 38116892 DOI: 10.1002/chem.202302835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/05/2023] [Accepted: 12/20/2023] [Indexed: 12/21/2023]
Abstract
We present the fabrication of a novel Starfruit-shaped metal-organic framework (SMOF) composed of zirconium and Tetra(4-carboxyphenyl)porphine linkers. The SMOF exhibits a unique morphology with edge-sharing two-dimensional (2D) nanosheet petals. Our investigation unravels a captivating transformation process, wherein three-dimensional (3D) shuttle-shaped MOFs form initially and subsequently evolve into 2D nanosheet-based SMOF structures. The distinct morphology of SMOF showcases superior catalytic activity in detoxifying G-type nerve agent and blister agent simulants, surpassing that of its 3D counterparts. This discovery of the 3D-to-2D transition growth pathway unlocks exciting opportunities for exploring novel strategies in advanced MOF nanostructure development, not only for catalysis but also for various other applications.
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Affiliation(s)
- Cheng-An Tao
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Beibei Wang
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - He Zhao
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Xuheng Yang
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Jian Huang
- College of Science, National University of Defense Technology, Changsha, 410073, China
| | - Jianfang Wang
- College of Science, National University of Defense Technology, Changsha, 410073, China
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3
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Zhou C, Li L, Qin H, Wu Q, Wang L, Lin C, Yang B, Tao CA, Zhang S. Humidity Enhances the Solid-Phase Catalytic Ability of a Bulk MOF-808 Metal-Organic Gel toward a Chemical Warfare Agent Simulant. ACS Appl Mater Interfaces 2023; 15:54582-54589. [PMID: 37974445 DOI: 10.1021/acsami.3c14297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Zirconium-based metal-organic frameworks have emerged as promising materials for detoxifying chemical warfare agents (CWAs) due to their remarkable stability and porosity. However, their practical application is hindered by issues with their powder form and poor catalytic performance in solid-phase degradation. To address these challenges, herein, a granular MOF-808 metal-organic gel (G808) is prepared under optimized conditions for catalytic degradation of the simulant 2-chloroethyl ethyl sulfide (2-CEES), a sulfide blister agent, in a neat state under different humidity conditions. The detoxification performance of G808 toward 2-CEES is significantly enhanced as the content of water present increases. The half-life of 2-CEES decontaminated by G808 can be shortened to 816 s, surpassing those of many other benchmark materials. To confirm the mechanism of catalytic degradation, we used gas chromatography, gas chromatography-mass spectrometry, and theoretical calculations. The findings revealed that hydrolysis was the predominant route. Additionally, granular G808 was reusable and adaptable to high-moisture environments, making it an excellent protective material with practical potential.
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Affiliation(s)
- Chuan Zhou
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Li Li
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Haojie Qin
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Qiong Wu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Liying Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Changxu Lin
- Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Lab for Soft Functional Materials Research, Department of Physics, College of Physical Science and Technology, Xiamen University, Xiamen 361005, China
| | - Bo Yang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Cheng-An Tao
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Shouxin Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
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Zhang Y, Tao CA. Metal-Organic Framework Gels for Adsorption and Catalytic Detoxification of Chemical Warfare Agents: A Review. Gels 2023; 9:815. [PMID: 37888388 PMCID: PMC10606365 DOI: 10.3390/gels9100815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023] Open
Abstract
Chemical warfare agents (CWAs) have brought great threats to human life and social stability, and it is critical to investigate protective materials. MOF (metal-organic framework) gels are a class with an extended MOF architecture that are mainly formed using metal-ligand coordination as an effective force to drive gelation, and these gels combine the unique characteristics of MOFs and organic gel materials. They have the advantages of a hierarchically porous structure, a large specific surface area, machinable block structures and rich metal active sites, which inherently meet the requirements for adsorption and catalytic detoxification of CWAs. A series of advances have been made in the adsorption and catalytic detoxification of MOF gels as chemical warfare agents; however, overall, they are still in their infancy. This review briefly introduces the latest advances in MOF gels, including pure MOF gels and MOF composite gels, and discusses the application of MOF gels in the adsorption and catalytic detoxification of CWAs. Meanwhile, the influence of microstructures (pore structures, metal active site, etc.) on the detoxification performance of protective materials is also discussed, which is of great significance in the exploration of high-efficiency protective materials. Finally, the review looks ahead to next priorities. Hopefully, this review can inspire more and more researchers to enrich the performance of MOF gels for applications in chemical protection and other purification and detoxification processes.
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Affiliation(s)
| | - Cheng-An Tao
- College of Science, National University of Defense Technology, Changsha 410073, China;
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5
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Jiang H, Li Y, Liu F, Sheng L, Tao CA, Wang J. An Angle-Independent Multi-Color Display Electro-Responsive Hydrogel Film. Gels 2023; 9:568. [PMID: 37504447 PMCID: PMC10379048 DOI: 10.3390/gels9070568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/07/2023] [Accepted: 07/09/2023] [Indexed: 07/29/2023] Open
Abstract
In nature, some organisms have the ability to camouflage to adapt to environmental changes; they blend with the environment by changing their skin colors. Such a phenomenon is of great significance for the research of adaptive camouflage materials. In this study, we propose a novel design scheme for the study of angle-independent photonic materials and successfully prepare an electrically tunable multi-color display angle-independent inverse opal photonic gel (IOPG). After photopolymerization of hydroxyethyl methacrylate with ionizable monomer acrylic acid (AA) in a long-range disordered opal template and etching, the angle-independent inverse opal photonic gel is obtained, presenting a single structural color. The electrically responsive color changes can be achieved at different angles. The color of the disordered AA-IOPG changes from green to blue-green when applying +4 V bias voltage and from green to orange when applying -4 V bias voltage. The electrochromism of the disordered AA-IOPG is mainly due to the local pH change caused by water electrolysis under bias voltage, which leads to a change of the swelling ratio. The disordered AA-IOPG shows high color tunability and durability through repeated opposite bias voltage tests, indicating that it is a promising conductive photonic material.
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Affiliation(s)
- Huan Jiang
- College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Yujiao Li
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Fangfang Liu
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Liping Sheng
- College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Cheng-An Tao
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Jianfang Wang
- College of Science, National University of Defense Technology, Changsha 410073, China
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6
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Wen L, Wang J, Liu Z, Tao CA, Rao J, Hang J, Li Y. A portable acetylcholinesterase-based electrochemical sensor for field detection of organophosphorus. RSC Adv 2023; 13:6389-6395. [PMID: 36874943 PMCID: PMC9982831 DOI: 10.1039/d2ra05383g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 01/23/2023] [Indexed: 03/06/2023] Open
Abstract
A portable acetylcholinesterase (AChE)-based electrochemical sensor based on a screen-printed carbon electrode (SPCE) and a miniature potentiostat was constructed for the rapid field detection of organophosphorus pesticides (OPs). Graphene (GR) and gold nanoparticles (AuNPs) were successively introduced onto SPCE for surface modification. Due to the synergistic effect of the two nanomaterials, the signal of the sensor has a significant enhancement. Take isocarbophos (ICP) as a model for chemical warfare agents (CAWs) and Ops; the SPCE/GR/AuNPs/AChE/Nafion sensor shows a wider linear range (0.1-2000 μg L-1), and a lower limit of detection (0.012 μg L-1) than SPCE/AChE/Nafion and SPCE/GR/AChE/Nafion sensors. Tests in actual fruit and tap water samples also yielded satisfactory results. Therefore, the proposed method can be used as a simple and cost-effective strategy for construction of portable electrochemical sensors for OP field detection.
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Affiliation(s)
- Long Wen
- College of Science, National University of Defense Technology Changsha 410073 P. R. China
| | - Jianfang Wang
- College of Science, National University of Defense Technology Changsha 410073 P. R. China
| | - Zhuoliang Liu
- College of Science, National University of Defense Technology Changsha 410073 P. R. China
| | - Cheng-An Tao
- College of Science, National University of Defense Technology Changsha 410073 P. R. China
| | - Jialing Rao
- College of Science, National University of Defense Technology Changsha 410073 P. R. China
| | - Jian Hang
- College of Science, National University of Defense Technology Changsha 410073 P. R. China
| | - Yujiao Li
- College of Science, National University of Defense Technology Changsha 410073 P. R. China
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Zhao H, Tao CA, Zhao S, Zou X, Wang F, Wang J. Porphyrin-Moiety-Functionalized Metal-Organic Layers Exhibiting Catalytic Capabilities for Detoxifying Nerve Agent and Blister Agent Simulants. ACS Appl Mater Interfaces 2023; 15:3297-3306. [PMID: 36608147 DOI: 10.1021/acsami.2c18126] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The development of very efficient bifunctional catalysts for the simultaneous detoxification of two kinds of the deadliest chemical warfare agents (CWAs), nerve agent and blister agent, is highly desirable. In this study, two porphyrin-based ligands [tetrakis(4-carboxyphenyl) porphyrin (TCPP) and protoporphyrin IX (PPIX)] are introduced into 2D Zr-1,3,5-tris(4-carboxyphenyl)benzene (BTB) metal-organic layers (MOLs), composed of six-connected Zr6 nodes and the tritopic carboxylate ligand BTB, by a solvent-assisted ligand incorporation method. The loads of TCPP and PPIX are 6.4 and 10.9 wt %, respectively. The detoxification of simulants of the nerve agent and the blister agent was conducted to investigate the catalytic activity of porphyrin-moiety-functionalized MOLs. The reaction half-life of optimal TCPP-functionalized MOL catalyzing the hydrolysis of a nerve agent simulant is only 2.8 min, meanwhile, the half-life of the selective catalytic oxidation of a blister agent simulant is only 1.2 min under LED illumination. More importantly, such a degradation half-life is only about 4 min under natural sunlight (∼60 mW/cm2). To our knowledge, TCPP-functionalized MOL is by far the most efficient catalyst for blister agent simulant degradation under solar light. Therefore, 2D ultrathin MOLs on demand appear to be a promising and efficient material platform for the development of bifunctional catalysts for CWA protection.
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Affiliation(s)
- He Zhao
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Cheng-An Tao
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Shiyin Zhao
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Xiaorong Zou
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Fang Wang
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Jianfang Wang
- College of Science, National University of Defense Technology, Changsha 410073, China
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8
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Zhou C, Yuan B, Zhang S, Yang G, Lu L, Li H, Tao CA. Ultrafast Degradation and High Adsorption Capability of a Sulfur Mustard Simulant under Ambient Conditions Using Granular UiO-66-NH 2 Metal-Organic Gels. ACS Appl Mater Interfaces 2022; 14:23383-23391. [PMID: 35549001 DOI: 10.1021/acsami.2c02401] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Zirconium-based metal-organic frameworks (Zr-MOFs) have been considered as prospective materials for the degradation of nerve chemical warfare agents (CWAs) but show poor catalytic performance toward blister agents. Moreover, the powder issues and the poor adsorption capability also remain as the major challenges for the application of Zr-MOFs in practical CWA detoxification. Herein, a series of defected granular UiO-66-NH2 metal-organic gels are synthesized via adjusting the amount of added concentrated hydrochloric acid for the decontamination of 2-chloroethyl ethyl sulfide (2-CEES), a sulfur mustard simulant. The half-life of 2-CEES decontaminated by defected granular UiO-66-NH2 metal-organic gels can be shortened to 7.6 min, which is the highest reported value for MOFs under ambient conditions. The mechanism of decontamination is that the amino group on the linkers in UiO-66-NH2 MOGs undergoes a substitution reaction with 2-CEES to yield 2-(2-(ethylthio)ethylamino)terephthalic acid, which is less toxic and fixed in the frameworks. The recycling test corroborates that the granular UiO-66-NH2 xerogels possess good stability and reusability. Static adsorption and desorption tests show that UiO-66-NH2 xerogels possess a high 2-CEES vapor adsorption capacity of 802 mg/g after exposure for 1 d and only 28 wt % desorption capacity after air exposure for 7 d. The dual function of ultrafast degradation and high adsorption capability provide a firm foundation for using UiO-66-NH2 xerogels as a future protection media.
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Affiliation(s)
- Chuan Zhou
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Bo Yuan
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Shouxin Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Guang Yang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Lin Lu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Heguo Li
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, PR China
| | - Cheng-An Tao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
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Zhao J, Chen R, Huang J, Wang F, Tao CA, Wang J. Ultrafast Synthesis of Ultrathin Two-Dimensional Metal–Organic Framework Nanosheets with High Space-Time Yield. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c04096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jie Zhao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Rui Chen
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Jian Huang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Fang Wang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Cheng-An Tao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Jianfang Wang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
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Zhao J, Chen R, Huang J, Wang F, Tao CA, Wang J. Facile Synthesis of Metal-Organic Layers with High Catalytic Performance toward Detoxification of a Chemical Warfare Agent Simulant. ACS Appl Mater Interfaces 2021; 13:40863-40871. [PMID: 34405983 DOI: 10.1021/acsami.1c08365] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Two-dimensional (2D) metal-organic layer (MOL) materials are highly desired against chemical warfare agents (CWAs). However, the rapid synthesis of 2DMOLs with open metal sites in a single step is very challenging. Herein, a facile bottom-up method for synthesizing MOLs with microwave assistance is applied to produce Zr/Hf-BTB MOLs, composed of six-connected M6O4(OH)412+ and the tritopic carboxylate ligand 1,3,5-tris(4-carboxyphenyl)benzene (BTB). The synthesis and ligand exchange steps can be combined into a single step to yield MOLs with active open sites directly. The as-synthesized MOLs demonstrate excellent catalytic performance toward the degradation of a CWA simulant. The theoretical calculations confirm that the high catalytic activity is due to the formate groups coordinated to the metal nodes being replaced by hydroxyl groups. The present work not only develops a method for the fast synthesis of 2D MOLs with active open metal sites in a single step but also provides a first demonstration for the application of 2D metal coordination materials in CWA protection.
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Affiliation(s)
- Jie Zhao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Rui Chen
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Jian Huang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Fang Wang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Cheng-An Tao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
| | - Jianfang Wang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China
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11
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Zhou C, Zhang S, Pan H, Yang G, Wang L, Tao CA, Li H. Synthesis of macroscopic monolithic metal-organic gels for ultra-fast destruction of chemical warfare agents. RSC Adv 2021; 11:22125-22130. [PMID: 35480835 PMCID: PMC9034225 DOI: 10.1039/d1ra01703a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/20/2021] [Indexed: 01/20/2023] Open
Abstract
The potential threat that has originated from chemical warfare agents (CWAs) has promoted the development of advanced materials to enhance the protection of civilian and military personnel. Zr-based metal–organic frameworks (Zr-MOFs) have recently been demonstrated as excellent catalysts for decomposing CWAs, but challenges of integrating the microcrystalline powders of Zr-MOFs into monoliths still remain. Herein, we report hierarchically porous monolithic UiO-66-X xerogels for the destruction of CWAs. We found that the UiO-66-NH2 xerogel with a larger pore size and a higher surface area than the UiO-66-NH2 powder possessed better degradability of 2-chloroethyl ethyl sulfide (2-CEES), which is a sulfur mustard simulant. These UiO-66-X xerogels exhibit outstanding performance for decomposing CWAs. The half-lives of vesicant agent sulfur mustard (HD) and nerve agent O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate (VX) are as short as 14.4 min and 1.5 min, respectively. This work is, to the best of our knowledge, the first report on macroscopic monolithic UiO-66-X xerogels for ultrafast decomposition of CWAs. For the first time, we report hierarchically porous monolithic UiO-66-X xerogels for ultra-fast destruction of chemical warfare agents. The half-lives of the vesicant agent sulfur mustard (HD) and of the nerve agent VX are as short as 14.4 min and 1.5 min, respectively.![]()
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Affiliation(s)
- Chuan Zhou
- State Key Laboratory of NBC Protection for Civilians Beijing 102205 PR China.,Research Institute of Chemical Defense Beijing 102205 PR China
| | - Shouxin Zhang
- State Key Laboratory of NBC Protection for Civilians Beijing 102205 PR China.,Research Institute of Chemical Defense Beijing 102205 PR China
| | - Hongjie Pan
- Research Institute of Chemical Defense Beijing 102205 PR China
| | - Guang Yang
- Research Institute of Chemical Defense Beijing 102205 PR China
| | - Lingyun Wang
- Research Institute of Chemical Defense Beijing 102205 PR China
| | - Cheng-An Tao
- College of Liberal Arts and Science, National University of Defense Technology Changsha 410073 China
| | - Heguo Li
- Research Institute of Chemical Defense Beijing 102205 PR China
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12
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Chen R, Tao CA, Zhang Z, Chen X, Liu Z, Wang J. Layer-by-Layer Fabrication of Core-Shell Fe 3O 4@UiO-66-NH 2 with High Catalytic Reactivity toward the Hydrolysis of Chemical Warfare Agent Simulants. ACS Appl Mater Interfaces 2019; 11:43156-43165. [PMID: 31652043 DOI: 10.1021/acsami.9b14099] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Detoxifying materials against chemical warfare agents (CWAs) and their simulants are highly desired for proper handling of contamination by and destruction of CWAs. Herein, we report a facile layer-by-layer fabrication of core-shell Fe3O4@UiO-66-NH2 and its application in fast degradation of CWA simulants. The Fe3O4@UiO-66-NH2 composite was prepared through a layer-by-layer epitaxial growth strategy, by alternately immersing Fe3O4 nanoparticles in ethanol solutions of a metal node [Zr6O4(OH)4]12+ precursor and organic linkers [NH2-BDC, 2-aminoterephthalic acid], respectively, and separating using a magnet. As confirmed by characterization results, the Fe3O4@UiO-66-NH2 composites with 24.4 μmol/g Zr6 node content showed a well-defined core-shell structure as well as good thermal and chemical stability. These core-shell magnetic metal-organic frameworks (MOFs) were further tested in the catalytic hydrolysis of dimethyl-4-nitrophenyl phosphate (a nerve agent simulant) and demonstrated 36 times higher catalytic activity than the UiO-66-NH2 powder due to their highly defective surface, high percentage of MOFs on the surface, and their rich mesoporous structure. Since magnetism was retained after the coating of MOFs, Fe3O4@UiO-66-NH2 could be easily recovered and reused after catalysis.
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Affiliation(s)
- Rui Chen
- College of Liberal Arts and Science , National University of Defense Technology , Changsha 410073 , China
| | - Cheng-An Tao
- College of Liberal Arts and Science , National University of Defense Technology , Changsha 410073 , China
| | - Zenghui Zhang
- College of Liberal Arts and Science , National University of Defense Technology , Changsha 410073 , China
| | - Xianzhe Chen
- College of Liberal Arts and Science , National University of Defense Technology , Changsha 410073 , China
| | - Zhuoliang Liu
- College of Liberal Arts and Science , National University of Defense Technology , Changsha 410073 , China
| | - Jianfang Wang
- College of Liberal Arts and Science , National University of Defense Technology , Changsha 410073 , China
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13
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Xiao H, Tao CA, Li Y, Chen X, Huang J, Wang J. Dopamine Assisted One-Step Pyrolysis of Glucose for the Preparation of Porous Carbon with A High Surface Area. Nanomaterials (Basel) 2018; 8:E854. [PMID: 30347702 PMCID: PMC6215113 DOI: 10.3390/nano8100854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/16/2018] [Accepted: 10/18/2018] [Indexed: 12/02/2022]
Abstract
Herein, a facile dopamine assisted one-pot synthesis approach is proposed for the preparation of porous carbon with a specific surface area (SSA) up to 2593 m²/g through the direct pyrolysis of a mixture of glucose, NH₄Cl, and dopamine hydrochloride (DAH). The glucose is adopted as the carbon source and foaming agent, NH₄Cl is used as the blowing agent, and DAH is served as collaborative carbon precursor as well as the nitrogen source for the first time. The effect of dopamine on the component, structure, and SSA of the as-prepared porous carbon materials are systematically studied. The moderate addition of dopamine, which influences the condensation and polymerization of glucose, matches better with ammonium salt decomposition. The SSA of porous carbon increases first and then decreases with the increasing amount of dopamine. In our case, the porous carbon produced with 5 wt% dopamine (PC-5) achieves the maximum SSA of up to 2593 m²/g. Accordingly, it also shows the greatest electrochemical performance. The PC-5 shows a capacitance of 96.7 F/g calculated from the discharge curve at 1 A/g. It also has a good capacitive rate capacity, the specific capacitance can still maintain 80%, even at a high current density of 10 A/g. Moreover, PC-5 exhibits a good cycling stability of 98.1% capacitive retention after 1000 cycles. The proposed method may show promising prospects for preparing porous carbon materials as advanced energy storage materials, storage, and catalyst supports.
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Affiliation(s)
- Hanbo Xiao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China.
| | - Cheng-An Tao
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China.
| | - Yujiao Li
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China.
| | - Xianzhe Chen
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China.
| | - Jian Huang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China.
| | - Jianfang Wang
- College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China.
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Abstract
Fabrication of graphene-based conductive circuits via inkjet printing processes would be very significant, but preparation of graphene inks which can be used in ordinary household inkjet printer is still a challenge. Graphene oxide (GO) is an important graphene derivative with good dispersion properties in water, because it has a lot of oxygen-containing functional groups. In this paper, the relationship between the concentration of GO and the viscosity and surface tension of its dispersion were studied first, GO were prepared by modified Hummers' method. Moreover, the influence of two surfactants-sodium dodecyl sulfate (SDS) and Triton-X100 (TX-100) on viscosity and surface tension of inks were also investigated. It was found that the concentration of GO was 3.9 mg/mL, and the amount of the addition of SDS and TX-100 were 1 mg/mL and 2.5 mg/mL respectively, which can form stable GO-based inks. Finally, the resultant GO-based inks can be printed by home inkjet printer HP-1010 on normal printing paper, flexible polyimide film and thin aluminum foil. It is expected that the development of inkjet printable GO-based inks will decrease the cost of the preparation of graphene electrode/circuits and open up new ways for the application of GO-based thin film and patterns.
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Affiliation(s)
- Peiwen Li
- College of Chemistry, Key Laboratory of Environmental Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Hunan 411105, P. R. China
| | - Cheng-An Tao
- College of Science, National University of Defense Technology, Changsha, 410073, P. R. China
| | - Bangyun Wang
- College of Science, National University of Defense Technology, Changsha, 410073, P. R. China
| | - Jian Huang
- College of Science, National University of Defense Technology, Changsha, 410073, P. R. China
| | - Taohai Li
- College of Chemistry, Key Laboratory of Environmental Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Hunan 411105, P. R. China
| | - Jianfang Wang
- College of Science, National University of Defense Technology, Changsha, 410073, P. R. China
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15
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Lin C, Jiang Y, Tao CA, Yin X, Lan Y, Wang C, Wang S, Liu X, Li G. Electrothermally Driven Fluorescence Switching by Liquid Crystal Elastomers Based On Dimensional Photonic Crystals. ACS Appl Mater Interfaces 2017; 9:11770-11779. [PMID: 28293943 DOI: 10.1021/acsami.6b15619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In this article, the fabrication of an active organic-inorganic one-dimensional photonic crystal structure to offer electrothermal fluorescence switching is described. The film is obtained by spin-coating of liquid crystal elastomers (LCEs) and TiO2 nanoparticles alternatively. By utilizing the property of LCEs that can change their size and shape reversibly under external thermal stimulations, the λmax of the photonic band gap of these films is tuned by voltage through electrothermal conversion. The shifted photonic band gap further changes the matching degree between the photonic band gap of the film and the emission spectrum of organic dye mounting on the film. With rhodamine B as an example, the enhancement factor of its fluorescence emission is controlled by varying the matching degree. Thus, the fluorescence intensity is actively switched by voltage applied on the system, in a fast, adjustable, and reversible manner. The control chain of using the electrothermal stimulus to adjust fluorescence intensity via controlling the photonic band gap is proved by a scanning electron microscope (SEM) and UV-vis reflectance. This mechanism also corresponded to the results from the finite-difference time-domain (FDTD) simulation. The comprehensive usage of photonic crystals and liquid crystal elastomers opened a new possibility for active optical devices.
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Affiliation(s)
- Changxu Lin
- Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, Xiamen University , 361005 Xiamen, P.R. China
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Yin Jiang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
- Beilun Science and Technology Bureau , Ningbo, 315800, P. R. China
| | - Cheng-An Tao
- College of Science, National University of Defence Technology , Changsha 410073, P. R. China
| | - Xianpeng Yin
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Yue Lan
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Chen Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Shiqiang Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Xiangyang Liu
- Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, Xiamen University , 361005 Xiamen, P.R. China
| | - Guangtao Li
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
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Tao CA, Wang J, Lv Y, Long Y, Zhu H, Jiang Z. In situ fabrication of pH-sensitive graphene oxide–drug supramolecular hydrogels as controlled release system. J Control Release 2013. [DOI: 10.1016/j.jconrel.2013.08.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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An Q, Dong C, Zhu W, Tao CA, Yang H, Wang Y, Li G. Cucurbit[8]uril as building block for facile fabrication of well-defined organic crystalline nano-objects with multiple morphologies and compositions. Small 2012; 8:561-568. [PMID: 22282353 DOI: 10.1002/smll.201101933] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/13/2011] [Indexed: 05/31/2023]
Abstract
Cucurbit[n]urils (CB[n]) have great potential in material and medical applications due to their advantageous molecular recognition properties. Despite organic microcrystals being highly desirable in materials science and the medical industry, CB[n]-based micro- and nanocrystals have not been reported. A facile and efficient approach for producing CB[8]-based organic crystals with well-defined micro- and nanostructures is described, based on the unique host-guest chemistry of CB[8] macrocycle with small guest molecules. The described strategy allows fabrication of micro- and nanocrystals with multiple morphologies and compositions by simply adjusting the preparation conditions and the type of guest molecules. The mechanisms for the formation of the micro/nanocrystals are studied, and morphology-dependent optical and thermal properties typical of organic micro/nanocrystals are described. Additionally, attractive potentials of the prepared microcrystals are shown upon storing small molecules, and in optical applications. The molecular recognition abilities of CB[8] are highlighted in both its preparation process and potential application.
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Affiliation(s)
- Qi An
- Department of Molecular Nanofabrication, MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands
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18
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Abstract
A surfactant containing a terminal carbon source moiety was synthesized and used simultaneously as both template molecule and carbon source. On the basis of this special structure-directing agent, an efficient strategy for producing uniform carbon nanowires with diameter below 1 nm was developed using a confined self-assembly approach. Besides the capability of producing ultralong and thin carbon wires inaccessible by the previously reported approaches, the method described here presents many advantages such as the direct use of residue iron complex as catalyst for carbonization and no requirement of conventional tedious infiltration process of carbon source into small channels. Different methods including SEM, TEM, XRD, Raman spectroscopy, and conductivity measurement were employed to characterize the formed ultrathin carbon nanofibers. Additionally, the described strategy is extendable. By designing an appropriate surfactant, it is also possible for the fabrication of the finely structured carbon network and ultrathin graphitic sheets through the construction of the corresponding cubic and lamellar mesostructured templates.
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Affiliation(s)
- Weixia Zhang
- Department of Chemistry, Tsinghua University, 100084 Beijing, China
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19
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Chang LC, Chou MY, Chow P, Matossian K, McBride J, Tao CA, Gallagher GT, Wong DT. Detection of transforming growth factor-alpha messenger RNA in normal and chemically transformed hamster oral epithelium by in situ hybridization. Cancer Res 1989; 49:6700-7. [PMID: 2510930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have recently demonstrated the consistent detection of transforming growth factor alpha (TGF-alpha) in chemically transformed hamster oral tumors. By Northern blot analysis, no TGF-alpha mRNA can be detected in normal cheek pouch mucosa. The consistent expression of TGF-alpha associated with the malignant transformation in the well-defined hamster oral cancer model prompted us to hypothesize that the aberrant expression of this important cellular gene could be related to a specific stage of epithelial alteration. In situ hybridization was used to test this hypothesis. We now report that by in situ hybridization we can detect TGF-alpha mRNA in normal hamster oral epithelium and also at all stages of transformation. In all epithelium, labeling of TGF-alpha mRNA in the basal layer is more pronounced than that observed in the spinous and squamous layers. There is a significant increase of TGF-alpha mRNA labeling early in 7,12-dimethylbenz(a)anathracene-induced oral carcinogenesis. This increase is associated with morphological changes of epithelial hyperplasia or dysplasia. Although lesions exhibiting full-thickness epithelial dysplasia (carcinoma in situ) showed more labeling of TGF-alpha mRNA than do areas of lesser dysplasia, the transition to full-fledged papillary or invasive squamous cell carcinoma is not associated with further elevations of TGF-alpha expression.
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Affiliation(s)
- L C Chang
- Department of Oral Medicine and Oral Pathology, Harvard School of Dental Medicine, Boston, Massachusetts 02115
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