An effective “precursor-transformation” route toward the high-yield synthesis of ZIF-8 tubes

Liu, Ziyi; Wu, Aiping; Yan, Haijing; Su, Danni; Jin, Chengxu; Guo, Hao; Wang, Lei; Tian, Chungui

doi:10.1039/c9cc08724a

Cited by 43 publications

(12 citation statements)

References 39 publications

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“…The broad peak in the C (1s) spectrum is attributed to CN/CC, C–H/C–C peaks along with the Zn LMM peak. The broad N (1s) peak is ascribed to the convolution of three different species (N–Zn/N–H, N–C, NC) . The two peaks in the Zn (2p) spectrum are assigned to Zn 2p 3/2 and Zn 2p 1/2 .…”

Section: Resultsmentioning

confidence: 99%

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Capture and Decomposition of the Nerve Agent Simulant, DMCP, Using the Zeolitic Imidazolate Framework (ZIF-8)

Ebrahim

Płonka

Rui

et al. 2020

ACS Appl. Mater. Interfaces

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Understanding mechanisms of decontamination of chemical warfare agents (CWA) is an area of intense research aimed at developing new filtration materials to protect soldiers and civilians in case of state-sponsored or terrorist attack. In this study, we employed complementary structural, chemical, and dynamic probes and in situ data collection, to elucidate the complex chemistry, capture, and decomposition of the CWA simulant, dimethyl chlorophosphonate (DMCP). Our work reveals key details of the reactive adsorption of DMCP and demonstrates the versatility of zeolitic imidazolate framework (ZIF-8) as a plausible material for CWA capture and decomposition. The in situ synchrotron-based powder X-ray diffraction (PXRD) and pair distribution function (PDF) studies, combined with Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), zinc K-edge X-ray absorption near edge structure (XANES), and Raman spectroscopies, showed that the unique structure, chemical state, and topology of ZIF-8 enable accessibility, adsorption, and hydrolysis of DMCP into the pores and revealed the importance of linker chemistry and Zn2+ sites for nerve agent decomposition. DMCP decontamination and decomposition product(s) formation were observed by thermogravimetric analysis, FT-IR spectroscopy, and phosphorus (P) K-edge XANES studies. Differential PDF analysis indicated that the average structure of ZIF-8 (at the 30 Å scale) remains unchanged after DMCP dosing and provided information on the dynamics of interactions of DMCP with the ZIF-8 framework. Using in situ PXRD and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), we showed that nearly 90% regeneration of the ZIF-8 structure and complete liberation of DMCP and decomposition products occur upon heating.

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Section: Resultsmentioning

confidence: 99%

“…The broad N (1s) peak is ascribed to the convolution of three different species (N−Zn/N−H, N−C, NC). 68 The two peaks in the Zn (2p) spectrum are assigned to Zn 2p 3/2 and Zn 2p 1/2 . 68 The surface chemistry of bound species probed by XPS shows distinct features that arise due to DMCP adsorption.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Capture and Decomposition of the Nerve Agent Simulant, DMCP, Using the Zeolitic Imidazolate Framework (ZIF-8)

Ebrahim

Płonka

Rui

et al. 2020

ACS Appl. Mater. Interfaces

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“…Figure 5 b–d displays high-resolution spectra of Zn 2p, O 1s, and N 1s of Zn-O-C, Zn-O/N-C, and Zn-N-C catalysts. In Figure 5 b, the binding energies of Zn 2p 1/2 and Zn 2p 3/2 for Zn-O-C [ 34 ], Zn-N-C [ 35 ], and Zn-O/N-C are 1021.9 eV and 1045.0 eV, 1021.7 eV and 1044.6 eV, and 1022.0 eV and 1045.1 eV, respectively, indicating the existence of Zn 2+ in the catalysts. Moreover, the values of binding energy positions for three catalysts are Zn-O/N-C > Zn-O-C > Zn-N-C, showing that the electron cloud density around zinc for Zn-O/N-C is the largest, while it is the smallest for Zn-N-C.…”

Section: Resultsmentioning

confidence: 99%

MOFs-Derived Zn-Based Catalysts in Acetylene Acetoxylation

Chen

et al. 2021

Nanomaterials

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Metal–organic frameworks (MOFs)-derived materials with a large specific surface area and rich pore structures are favorable for catalytic performance. In this work, MOFs are successfully prepared. Through pyrolysis of MOFs under nitrogen gas, zinc-based catalysts with different active sites for acetylene acetoxylation are obtained. The influence of the oxygen atom, nitrogen atom, and coexistence of oxygen and nitrogen atoms on the structure and catalytic performance of MOFs-derived catalysts was investigated. According to the results, the catalysts with different catalytic activity are Zn-O-C (33%), Zn-O/N-C (27%), and Zn-N-C (12%). From the measurements of X-ray photoelectron spectroscopy (XPS), it can be confirmed that the formation of different active sites affects the electron cloud density of zinc. The electron cloud density of zinc affects the ability to attract CH3COOH, which makes catalysts different in terms of catalytic activity.

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“… 29 The two peaks in the Zn (2p) spectrum are assigned to Zn 2p 3/2 and Zn 2p 1/2 . 52 The surface chemistry of bound species probed by XPS shows distinct features that arise due to HPBI adsorption. In the O (1s), an obvious intensity enhancement is observed after HPBI adsorption.…”

Section: Resultsmentioning

confidence: 99%

Tuning luminescence of the fluorescent molecule 2-(2-hydroxyphenyl)-1H-benzimidazole via zeolitic imidazolate framework-8

Zhang

Bian

et al. 2022

RSC Adv.

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An effective “precursor-transformation” route toward the high-yield synthesis of ZIF-8 tubes

Cited by 43 publications

References 39 publications

Capture and Decomposition of the Nerve Agent Simulant, DMCP, Using the Zeolitic Imidazolate Framework (ZIF-8)

Capture and Decomposition of the Nerve Agent Simulant, DMCP, Using the Zeolitic Imidazolate Framework (ZIF-8)

MOFs-Derived Zn-Based Catalysts in Acetylene Acetoxylation

Tuning luminescence of the fluorescent molecule 2-(2-hydroxyphenyl)-1H-benzimidazole via zeolitic imidazolate framework-8

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