Carbonized polymer dots activated hierarchical tungsten oxide for efficient and stable triethylamine sensor

Zhang, Mingxin; Zhao, Zhijie; Hui, Bin; Sun, Jianhua; Sun, Jianxin; Tian, Weiliang; Zhang, Ziqi; Zhang, Kewei; Xia, Yanzhi

doi:10.1016/j.jhazmat.2021.126161

Cited by 48 publications

(24 citation statements)

References 51 publications

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“…Likewise, recovery time (τ rec ) is specified as the time to return to the 90% of final value in the air after removal of the target gas. [35] Then the τ res/ τ rec can be presented with Equations (7) and (8). Indeed, the shorter the response time and recovery time, the better the sensing performance.…”

Section: Response Time (τ Res ) and Recovery Time (τ Rec )mentioning

confidence: 99%

Semiconductor Gas Sensor for Triethylamine Detection

Liu

Zhang

Fan

et al. 2021

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on the body for a long time, the genetic material will be damaged and mutations occur, which will result in abnormalities in the offspring. [4] Thus, it is urgent to develop devices to monitor these toxic gases. [5] The current devices for analyzing gas state pollutants are thin-layer chromatography scanner, [6] flame ionization detector, [7] gas chromatography-mass spectrometer (GC-MS), [8] and high-performance liquid chromatograph. [9] They can accurately detect and analyze these harmful gases, but they are bulky, expensive, laborious, and time-consuming. In addition, they cannot achieve real-time detection, so they cannot be widely used. By contrast, gas sensors have the advantages of portability, low expense, real-time monitoring and high sensitivity. According to different sensing principles, gas sensors can be divided into resistance-based, [10] optical, [11] micro-cantilever, [12] surface plasmon resonance, [13] surface acoustic, [14] and microwave sensors. [15] Among them, the resistance-based gas sensors have become a research hotspot due to their high sensitivity, good repeatability, and excellent selectivity. [16] Based on our survey, the history of resistance-based gas sensors dates back to several decades ago. Approximately 60 years ago, Brattain and Heiland discovered that the resistances of semiconductor materials vary according to the atmosphere. [17] Soon, Seiyama et al. applied this feature to detect harmful gases. [18] Then the first resistancebased gas sensor was successfully designed and patented by Taguchi. [17] The boiling point of triethylamine (TEA) is 89.5 °C at the normal temperature and pressure. Since its molecular formula contains hydrogen and carbon atoms, it is classified as a volatile organic compound (VOC). [19] Hitherto, TEA has been widely applied in many areas, such as, agriculture, fishery, and aviation, as well as, medication and health. [20] For example, it can be used as preservatives, surfactants, organic solvents, catalysts, etc. Moreover, studies have shown that putrid fish and shellfish releases TEA. In this regard, TEA can be used as a criterion to access the freshness of marine fish. [21] However, TEA harms the human body, mainly as a strong irritation to the skin and mucous membranes as well as the central nervous system. After prolonged exposure to TEA, some people are infected with emphysema and even die directly. According to the recommendations of the National Institute for Occupational Safety and Health Administration (NIOSH), the concentration of indoor TEA should be lower than 10 ppm. [22] The structure, application and hazards of TEA are schematic illustrated in Figure 1.Resistance-based gas sensors are effective in monitoring TEA. Currently, these resistance-based sensors are mainly With the demanding detection of unique toxic gas, semiconductor gas sensors have attracted tremendous attention due to their intriguing features, such as, high sensitivity, online detection, portability, ease of use, and low cost. Triethylamine, a typical gas of volatile organic...

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Section: Response Time (τ Res ) and Recovery Time (τ Rec )mentioning

confidence: 99%

Semiconductor Gas Sensor for Triethylamine Detection

Liu

Zhang

Fan

et al. 2021

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“…Figure b shows the high-resolution C 1s spectrum and three separate peaks corresponding to carbonyl carbons (CO, 287.8 eV), sp 2 carbons (CC, 284.6 eV), and sp 3 carbons (C–O/C–N, 286.1 eV) Figure c shows a high-resolution N 1s spectrum with two peaks, corresponding to pyrrolic N (400.2 eV) and pyridinic N (399.1 eV), respectively. , Figure d shows that the O 1s band contains two peaks at 533.0 and 531.6 eV corresponding to C–O and CO, respectively. , From the XPS results, it was found that the hydroxyl (−OH) and amino (−NH 2 ) groups exist on the surface of CPDs.…”

Section: Resultsmentioning

confidence: 99%

Simple and Green Synthesis of Carbonized Polymer dots from Nylon 66 Waste Fibers and its Potential Application

Wang

Liu

et al. 2021

ACS Omega

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Carbonized polymer dots (CPDs) have attracted widespread attention owing to their unique properties and are usually prepared from monomers of polymers or polymers. To reduce the waste of high-value petropolymers and environmental pollution, a simple and green method for the preparation of CPDs using a hydrothermal technique based on the cross-linking enhanced emission effect was proposed, in which nylon 66 waste fibers were used as a precursor and glutaraldehyde as a crosslinking agent. The as-prepared CPDs possessed polymer/carbon hybrid structures with a 3.5 nm average diameter, and hydroxyl (−OH), carboxyl (−COOH), and amino (−NH 2 ) groups were present on the surface of CPDs. It can be found that the asprepared CPDs display excitation-dependent photoluminescence emission, which is mainly attributed to the molecular state luminescence center. Because the molecular state fluorescence of CPDs could be affected by the presence of Fe 3+ and the change of pH values, the as-prepared CPDs can be used as a probe for the detection of the concentration of Fe 3+ and the pH variations of solution. The fluorescence intensity of CPDs was selectively quenched by Fe 3+ in the range from 1 to 145 μM. In virtue of the static quenching of CPDs by Fe 3+ , a sensing system was fabricated for the quantitative detection of Fe 3+ , and its limit of detection was 0.1 μM. Based on the electrostatic doping/charging of CPDs, a pH sensor was fabricated. It showed that the fluorescence intensity of CPDs decreased along with the increase of pH from 2.60 to 12.6. What is more, the CPDs were found to be an alternative to traditional fluorescent inks for encryption and information storage.

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“…In recent years, organometallic complexes with aggregation induced emission (AIE) properties have attracted a lot of attention due to their adjustable structure of organic moieties and metal active sites of inorganic moieties, [1] which had become an important part of biological, [2,3] medical, optical, [4] electrical, [5] magnetic and other scientific research. [6][7][8][9] AIE materials fundamentally solved the problem of aggregation quenching, which also provided the possibility for its application in fluorescent fibres.…”

Section: Introductionmentioning

confidence: 99%

“…Alginate fibres was a kind of natural macromolecules extracted from brown seaweed which was used as a third resource of textile fibres besides synthetic fibres and nature terrestrial fibres. [5,[22][23][24] The integration of functional additives into alginate fibres allowed the preparation of advanced fibres for applications in chem/biosensors, [23,25] catalysts, [26] regenerative medicine and tissue engineering. [27] Here in our report, the fluorescence of Mg(DBM) 2 complex was perfectly inherited by the composite fibres.…”

Section: Introductionmentioning

confidence: 99%

“…To broaden the application of Mg(DBM) 2 , it was incorporated into alginate textile fibres by wet‐spinning process to prepare fluorescent fibres. Alginate fibres was a kind of natural macromolecules extracted from brown seaweed which was used as a third resource of textile fibres besides synthetic fibres and nature terrestrial fibres [5,22–24] . The integration of functional additives into alginate fibres allowed the preparation of advanced fibres for applications in chem/biosensors, [23,25] catalysts, [26] regenerative medicine and tissue engineering [27] .…”

Section: Introductionmentioning

confidence: 99%

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Organometallic Magnesium Complex with Aggregation Induced Emission Properties: Synthesis, Characterization, and Fluorescent Fibers Applications

Fang

et al. 2022

ChemPhysChem

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In this work, a novel organomagnesium complex with outstanding aggregation induced emission (AIE) properties is synthesized using dibenzoylmethane (DBM) as the ligand. The structure of the complex is confirmed to be one magnesium ion coordinated to the dione groups of two DBM molecules, and the magnesium ion adopts a distorted octahedrally geometry. The obvious emission is found for Mg(DBM) 2 powder and not in the solution, making this the first reported organomagnesium complex with AIE property. The properties of the complex were investigated by using UV-vis absorption and fluorescence emission spectroscopy, cyclic voltammetry, and density func-tional theory calculations. Moreover, the Mg(DBM) 2 solution dispersed in filter paper was is colorless, which may be made into a convenient anti-counterfeiting and encryption tool. Mg(DBM) 2 /alginate fibers were prepared by wet-spinning process and further processed into paper, which can be used in the fields of sensors, anti-counterfeiting, and encryption. Sweat contains a wealth of chemical information that could potentially indicate the body's deeper biomolecular state. The prepared fluorescent fibers were used to detect sweat due to its nontoxic, low-cost efficient and fast response to analytes.

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Carbonized polymer dots activated hierarchical tungsten oxide for efficient and stable triethylamine sensor

Cited by 48 publications

References 51 publications

Semiconductor Gas Sensor for Triethylamine Detection

Semiconductor Gas Sensor for Triethylamine Detection

Simple and Green Synthesis of Carbonized Polymer dots from Nylon 66 Waste Fibers and its Potential Application

Organometallic Magnesium Complex with Aggregation Induced Emission Properties: Synthesis, Characterization, and Fluorescent Fibers Applications

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