Ultra-trace detection and efficient adsorption removal of multiple water-soluble volatile organic compounds by fluorescent sensor array

Che, Huachao; Yan, Shulin; Xiong, Momiao; Nie, Yulun; Xia, Tian; Li, Yong

doi:10.1016/j.jhazmat.2022.130182

Cited by 15 publications

(10 citation statements)

References 69 publications

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“…112 In order to reduce the number of synthetic sensing elements, two fluorescent MOFs of Eu@Uio-66 (SNA) and Tb@Uio-66 (SNB) with 4 fluorescence channels (SNA1, 330 nm; SNA2, 618 nm; SNB1, 330 nm; SNB2, 545 nm) were developed, which showed various fluorescence responses to 8 VOCs. 113 To realize the on-site analysis of VOC, the integrated sensor arrays were exploited. For instance, a series of localized surface plasmon resonance (LSPR) sensing elements with pattern recognition technologies have been developed, where AuNPs were embedded in molecularly imprinted sol−gel (MISG) (AuNPs@MISG) with diverse template molecules (four types of AuNPs@MISG) to improve the sensitivity and selectivity.…”

Section: ■ Applications Of Sensor Arraysmentioning

confidence: 99%

“…Each sensing element showed a color change in response to VOCs due to the structural transformation of these flexible MOFs . In order to reduce the number of synthetic sensing elements, two fluorescent MOFs of Eu@Uio-66 (SNA) and Tb@Uio-66 (SNB) with 4 fluorescence channels (SNA1, 330 nm; SNA2, 618 nm; SNB1, 330 nm; SNB2, 545 nm) were developed, which showed various fluorescence responses to 8 VOCs . To realize the on-site analysis of VOC, the integrated sensor arrays were exploited.…”

Section: Applications Of Sensor Arraysmentioning

confidence: 99%

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Recent Progress in Sensor Arrays: From Construction Principles of Sensing Elements to Applications

Zhu

Hai

et al. 2023

ACS Sens.

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The traditional sensors are designed based on the “lock-and-key” strategy with high selectivity and specificity for detecting specific analytes, which however are not suitable for detecting multiple analytes simultaneously. With the help of pattern recognition technologies, the sensor arrays excel in distinguishing subtle changes caused by multitarget analytes with similar structures in a complex system. To construct a sensor array, the multiple sensing elements are undoubtedly indispensable units that will selectively interact with targets to generate the unique “fingerprints” based on the distinct responses, enabling the identification among various analytes through pattern recognition methods. This comprehensive review mainly focuses on the construction strategies and principles of sensing elements, as well as the applications of sensor array for identification and detection of target analytes in a wide range of fields. Furthermore, the present challenges and further perspectives of sensor arrays are discussed in detail.

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Section: ■ Applications Of Sensor Arraysmentioning

confidence: 99%

Section: Applications Of Sensor Arraysmentioning

confidence: 99%

Recent Progress in Sensor Arrays: From Construction Principles of Sensing Elements to Applications

Zhu

Hai

et al. 2023

ACS Sens.

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“…Due to MD’s limitations in rejecting volatiles, traditional hydrophobic macroporous distillation membranes face significant challenges in treating complex hypersaline wastewater. , Lee and Straub recently reported that MD has less than 80% rejection for semi-volatiles with Henry’s constants between 10 –4 and 3 × 10 3 Pa L mol –1 while less than 54% rejection for volatiles with Henry’s constants exceeding 3 × 10 3 Pa L mol –1 . , This is because volatiles can evaporate alongside water and permeate through the hydrophobic macroporous membrane to the permeate side . While pretreatment methods like activated carbon adsorption, catalytic oxidation, or combined separation processes such as RO or nanofiltration (NF) can somewhat treat volatiles, − the diverse composition, low concentration, and large fluctuations of volatiles make direct absorption or mineralization inefficient and costly.…”

Section: Introductionmentioning

confidence: 99%

Engineering Multinanochannel Polymer-Intercalated Graphene Oxide Membrane for Strict Volatile Sieving in Membrane Distillation

Zhu,

Song,

et al. 2024

Environ. Sci. Technol.

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Graphene oxide (GO) membranes enabled by subnanosized diffusion channels are promising to separate small species in membrane distillation (MD). However, the challenge of effectively excluding small volatiles in MD persists due to the severe swelling and subsequent increase in GO interlamination spacing upon direct contact with the hot feed. To address this issue, we implemented a design in which a polymer is confined between the GO interlaminations, creating predominantly 2D nanochannels centered around 0.57 nm with an average membrane pore size of 0.30 nm. Compared to the virginal GO membrane, the polymer-intercalated GO membrane exhibits superior antiswelling performance, particularly at a high feed temperature of 60 °C. Remarkably, the modified membrane exhibited a high flux of approximately 52 L m −2 h −1 and rejection rates of about 100% for small ions and 98% for volatile phenol, with a temperature difference of 40 °C. Molecular dynamics simulations suggest that the sieving mechanisms for ions and volatiles are facilitated by the narrowed nanochannels within the polymer network situated between the 2D nanochannels of GO interlaminations. Concurrently, the unrestricted permeation of water molecules through the multinanochannel GO membrane encourages high-flux desalination of complex hypersaline wastewater.

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“…8,9 PCNs are also of interest for the sensing and removal of trace contaminants such as heavy metals 10 or volatile organic compounds (VOCs). 11,12 Alkene/alkane separations have been listed as one of the "seven chemical separations to change the world". 13 However, few sorbents of any type, even if they exhibit high capacity, high selectivity, and fast kinetics, can also meet the requirements of being cost-effective, stable, regenerable, and readily scalable.…”

Section: Introductionmentioning

confidence: 99%

Dinuclear Copper Sulfate-Based Square Lattice Topology Network with High Alkyne Selectivity

Andaloussi,

Sensharma,

Bezrukov

et al. 2024

Crystal Growth & Design

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Porous coordination networks (PCNs) sustained by inorganic anions that serve as linker ligands can offer high selectivity toward specific gases or vapors in gas mixtures. Such inorganic anions are best exemplified by electron-rich fluorinated anions, e.g., SiF6 2–, TiF6 2–, and NbOF5 2–, although sulfate anions have recently been highlighted as inexpensive and earth-friendly alternatives. Herein, we report the use of a rare copper sulfate dimer molecular building block to generate two square lattice, sql, coordination networks which can be prepared via solvent layering or slurrying, CuSO4(1,4-bib)1.5, 1, (1,4-bib = 1,4-bisimidazole benzene) and CuSO4(1,4-bin)1.5, 2, (1,4-bin = 1,4-bisimidazole naphthalene). Variable-temperature SCXRD and PXRD experiments revealed that both sql networks underwent reversible structural transformations due to linker rotations or internetwork displacements. Gas sorption studies conducted upon the narrow-pore phase of CuSO4(1,4-bin)1.5, 2np, found a high calculated 1:99 selectivity for C2H2 over C2H4 (33.01) and CO2 (15.18), as well as strong breakthrough performance. Across-the-board, C3H4 selectivity vs C3H6, CO2, and C3H8 was also observed. Sulfate-based PCNs, although still understudied, appear increasingly likely to offer utility in gas and vapor separations.

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Ultra-trace detection and efficient adsorption removal of multiple water-soluble volatile organic compounds by fluorescent sensor array

Cited by 15 publications

References 69 publications

Recent Progress in Sensor Arrays: From Construction Principles of Sensing Elements to Applications

Recent Progress in Sensor Arrays: From Construction Principles of Sensing Elements to Applications

Engineering Multinanochannel Polymer-Intercalated Graphene Oxide Membrane for Strict Volatile Sieving in Membrane Distillation

Dinuclear Copper Sulfate-Based Square Lattice Topology Network with High Alkyne Selectivity

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