Metal–Organic Polyhedra Cages Immobilized on a Plasmonic Substrate for Sensitive Detection of Trace Explosives

Wang, Chen; Shang, Jin; Lan, Yue; Tian, Tian; Wang, Hui; Chen, Xi; Gu, Jing-Ying; Liu, Jefferson Zhe; Li, Wan; Wang, Zhu; Li, Guangtao

doi:10.1002/adfm.201503071

Cited by 50 publications

(31 citation statements)

References 38 publications

(22 reference statements)

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“…3b, the high-resolution S 2p XPS spectrum displays two broad peaks at 164.0 and 168.8 eV pertaining to S 2p 1/2 and S 2p 3/2 , respectively [33]. The S 2p peaks were attributed to the bound nickel-thiol species [34]. A high-resolution XPS Ni 2p spectrum shows the peaks at 856.7 eV (Ni 2p 3/2 ) and 873.8 eV (Ni 2p 1/2 ) ( Fig.…”

Section: Resultsmentioning

confidence: 98%

Encapsulating a Ni(II) molecular catalyst in photoactive metal–organic framework for highly efficient photoreduction of CO2

Yan

et al. 2019

Science Bulletin

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Section: Resultsmentioning

confidence: 98%

Encapsulating a Ni(II) molecular catalyst in photoactive metal–organic framework for highly efficient photoreduction of CO2

Yan

et al. 2019

Science Bulletin

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“…For the detection of explosives, Cu‐MOP (MOP = metal–organic polyhedral) with an amine functionalized ligand H 2 (2‐NH 2 ‐5‐i‐Pr‐3,3′‐3,3′‐(1,3‐phenylenebis(ethyne‐2,1‐diyl))dibenzoate) was used . Li and co‐workers studied the interaction of a host system with different analytes such as TNT, DNT, RDX, and HMX.…”

Section: Trace Gas Enrichment and Sensingmentioning

confidence: 99%

Adsorption and Detection of Hazardous Trace Gases by Metal–Organic Frameworks

et al. 2018

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The quest for advanced designer adsorbents for air filtration and monitoring hazardous trace gases has recently been more and more driven by the need to ensure clean air in indoor, outdoor, and industrial environments. How to increase safety with regard to personal protection in the event of hazardous gas exposure is a critical question for an ever-growing population spending most of their lifetime indoors, but is also crucial for the chemical industry in order to protect future generations of employees from potential hazards. Metal-organic frameworks (MOFs) are already quite advanced and promising in terms of capacity and specific affinity to overcome limitations of current adsorbent materials for trace and toxic gas adsorption. Due to their advantageous features (e.g., high specific surface area, catalytic activity, tailorable pore sizes, structural diversity, and range of chemical and physical properties), MOFs offer a high potential as adsorbents for air filtration and monitoring of hazardous trace gases. Three advanced topics are considered here, in applying MOFs for selective adsorption: (i) toxic gas adsorption toward filtration for respiratory protection as well as indoor and cabin air, (ii) enrichment of hazardous gases using MOFs, and (iii) MOFs as sensors for toxic trace gases and explosives.

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“…Significant efforts have been employed to the exploration for detecting explosives [ 1 , 2 , 3 , 4 , 5 ]. Positively, the adverse effects of explosives on national defense security, ecological environment and human health have aroused widespread concern, such as PA (2,4,6-Trinitrophenol), TNT (2,4,6-Trinitrotoluene) and DNT (2,4-Dinitrotoluene).…”

Section: Introductionmentioning

confidence: 99%

A Comparison of ACQ, AIE and AEE-Based Polymers Loaded on Polyurethane Foams as Sensors for Explosives Detection

Chu

Fan

Zhang

et al. 2018

Sensors

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An aggregation-caused quenching (ACQ)-active polymer (PF), an aggregation-induced emission (AIE)-active polymer (PFTPE) and an aggregation-enhanced emission (AEE)-active polymer (PTTPE) were synthesized by tetraphenylethane (TPE), fluorene and thiophene moieties. Polyurethane (PU) foams modified by PF, PFTPE and PTTPE, namely PU-PF, PU-PFTPE and PU-PTTPE, using ultrasonication-assisted method have been prepared. A comparative study of PU-PF, PU-PFTPE and PU-PTTPE for detection explosives had been performed, and significant fluorescence quenching was observed with the introduction of PA solutions. The as-prepared PU-PF, PU-PFTPE and PU-PTTPE sensors exhibited a superior sensitivity for PA solutions with different concentrations. Remarkably, PU-PF gave a quenching efficiency of 96.2%, higher than 93.5% for PU-PFTPE and 86.7% for PU-PTTPE at a PA concentration of 180 µg·mL−1 in methanol, which was attributed to the effective energy transfer from the fluorophore (PF) to the nitro explosive (PA). This suggested that some ACQ polymers, applied to detect explosives, could afford better performances than AIE or AEE polymers through modification of structures and selection of adequate carriers. At the same time, these chemical sensors can be recycled many times.

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Metal–Organic Polyhedra Cages Immobilized on a Plasmonic Substrate for Sensitive Detection of Trace Explosives

Cited by 50 publications

References 38 publications

Encapsulating a Ni(II) molecular catalyst in photoactive metal–organic framework for highly efficient photoreduction of CO2

Encapsulating a Ni(II) molecular catalyst in photoactive metal–organic framework for highly efficient photoreduction of CO2

Adsorption and Detection of Hazardous Trace Gases by Metal–Organic Frameworks

A Comparison of ACQ, AIE and AEE-Based Polymers Loaded on Polyurethane Foams as Sensors for Explosives Detection

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