Catalytic MOF-loaded cellulose sponge for rapid degradation of chemical warfare agents simulant

Shen, Chenkang; Mao, Zhiping; Xu, Hong; Zhang, Linping; Zhong, Yi; Bi-jia, Wang; Feng, Xueling; Tao, Cheng‐an; Sui, Xiaofeng

doi:10.1016/j.carbpol.2019.02.044

Cited by 73 publications

(51 citation statements)

References 38 publications

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“…This difference is mainly due to the different sizes of MOF catalyst particles and the introduction of different defects. However, these two factors are often intertwined with each It is worth mentioning that there have been several reports concerning the degradation properties of UiO-66-NH 2 powders [19,[25][26][27][28][29][30]. The shortest half-life of degradation of DMNP catalyzed by UiO-66-NH 2 reported in the literature is less than 1 min [26] while the longest half-life reaches 495 min [19].…”

Section: Discussionmentioning

confidence: 99%

“…Catalytic hydrolysis of DMNP was performed according to the previous reports [29,30]. Typically, 10.4 mg of catalyst (MOF0, MOF1, MOF3, and MOF5, respectively) was added to 4.0 mL of N-EM solution (0.45 M, pH = 10) in a 50-mL vial at 25 • C. The resulting dispersion was vigorously sonicated for 5 min and stirred at 1100 rpm for 5 min.…”

Section: Catalytic Degration Of Dmnpmentioning

confidence: 99%

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Microwave-Assisted Solvothermal Synthesis of UiO-66-NH2 and Its Catalytic Performance toward the Hydrolysis of a Nerve Agent Simulant

et al. 2020

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Zr-containing metal-organic frameworks (MOFs) exhibit a good performance of catalyzing the hydrolysis of chemical warfare agents, which is closely related to the size of MOF particles and its defects, but these two factors are often intertwined. In this article, we synthesized UiO-66-NH2 nanoparticles using a microwave-assisted hydrothermal method. By using a new modulator 4-Fluoro-3-Formyl-Benzoic Acid (FFBA) in different proportions, MOF particles with the same defect degree but different scales and those with similar sizes but different defect degrees can be obtained. The performance of the obtained MOF particles to catalyze the hydrolysis of the nerve agent simulant, dimethyl 4-nitrophenyl phosphate (DMNP), was investigated, and the effects of single factors of size or defect were compared for the first time. As the size of the obtained MOF particles increased from 81 nm to 159 nm, the catalytic degradation efficiency toward DMNP gradually decreased, and the half-life increased from 3.9 min to 11.1 min. For MOFs that have similar crystal sizes, the catalytic degradation half-life of MOF3 is only 5 min, which is much smaller than that of MOF5 due to the defects increase from 1.2 to 1.8 per Zr6 cluster.

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Section: Discussionmentioning

confidence: 99%

Section: Catalytic Degration Of Dmnpmentioning

confidence: 99%

Microwave-Assisted Solvothermal Synthesis of UiO-66-NH2 and Its Catalytic Performance toward the Hydrolysis of a Nerve Agent Simulant

et al. 2020

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“…However, the loading of MOFs on some untreated CelF (e.g., pulp fibers and cotton fibers) is generally low in amount and weak in binding affinity. Therefore, some studies were conducted to promote the loading of MOFs on CelF, to a certain extent, by means of carboxymethylation [ 21 , 22 ], atomic layer deposition [ 23 ], citric acid modification [ 24 ], (3-aminopropyl)triethoxysilane (APTES) and 3-glycidyloxypropyltrimethoxysilane (GPTMS) as connecting substances [ 25 , 26 , 27 ], polydopamine as an intermediate layer [ 20 ], etc. However, the degradation of CelF is inevitable during carboxymethylation, and atomic layer deposition has high requirements for equipment.…”

Section: Introductionmentioning

confidence: 99%

De-Doped Polyaniline as a Mediating Layer Promoting In-Situ Growth of Metal–Organic Frameworks on Cellulose Fiber and Enhancing Adsorptive-Photocatalytic Removal of Ciprofloxacin

Hou

Sun

et al. 2021

Polymers

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New kinds of inorganic–organic hybrid porous materials, metal–organic frameworks (MOFs), have shown great application potential in various fields, but their powdery nature limits their application to a certain extent. As a green and renewable biomass material in nature, cellulose fiber (CelF) has the advantages of biodegradability, recyclability and easy processing, and can be used as an excellent flexible substrate for MOFs. However, the efficient deposition of MOFs on CelF is still a great challenge for the development of this new material. Herein, polyaniline (PANI) and de-doped PANI (DPANI) with rich functional groups as a mediating layer was proposed to promote the in-situ growth and immobilization of some MOFs on CelF. The PANI (especially DPANI) layer greatly promoted the deposition of the four MOFs, and more encouragingly, significantly promoted the in-situ growth and nanocrystallization of MIL-100(Fe). MIL-100(Fe)@DPANI@CelF was selected as an adsorbent-photocatalyst to be used for the adsorptive-photocatalytic removal of ciprofloxacin (CIP) in water. The removal efficiency of CIP by MIL-100(Fe)@DPANI@CelF reached 82.78%, and the removal capacity of CIP was as high as 105.96 mg g−1. The study found that DPANI had a synergistic effect on both the in-situ growth of MIL-100(Fe) on CelF and the adsorption-photocatalysis of CIP in water. The universal platform of PANI-mediated in-situ growth and immobilization of MOFs on CelF constructed in this study widens the road for the development of MOF@CelF composites.

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“…by selecting a particular metal ion or ligand. These properties make MOFs materials of great potential applications in many fields, such as gas adsorption and storage [8], separation [9], catalysis [10,11], drug delivery and sustained release [12], medical imaging [12], luminescent materials, sensing [13][14][15][16], and so on.…”

Section: Introductionmentioning

confidence: 99%

Metal Organic Frameworks-Based Optical Thin Films

Tao¹,

Wang²,

Chen³

2020

Multilayer Thin Films - Versatile Applications for Materials Engineering

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Metal-organic frameworks (MOFs) are organic-inorganic hybrid materials with ordered pore structures assembled by metal centers and organic ligands through coordination bonds, but conventionally they are mostly in powder form. In recent years, metal-organic framework films have received increasing attention due to their potential applications in nanotechnology and nanodevices. The intrinsic ultrahigh porosity of MOFs may lead to a low refractive index of MOF materials. In addition, over 70,000 types of MOFs exist, and their properties can be tuned through the adoption of different metal motifs, organic ligands, or crystal morphologies. These characteristics make MOFs a potential new generation of optical thin film materials. In this chapter, the fabrication methods of MOF thin films, the optical properties of MOF optical thin films, and their application in optical sensors were described.

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Catalytic MOF-loaded cellulose sponge for rapid degradation of chemical warfare agents simulant

Cited by 73 publications

References 38 publications

Microwave-Assisted Solvothermal Synthesis of UiO-66-NH2 and Its Catalytic Performance toward the Hydrolysis of a Nerve Agent Simulant

Microwave-Assisted Solvothermal Synthesis of UiO-66-NH2 and Its Catalytic Performance toward the Hydrolysis of a Nerve Agent Simulant

De-Doped Polyaniline as a Mediating Layer Promoting In-Situ Growth of Metal–Organic Frameworks on Cellulose Fiber and Enhancing Adsorptive-Photocatalytic Removal of Ciprofloxacin

Metal Organic Frameworks-Based Optical Thin Films

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