An autoanalyzer for real-time detection of benzene and volatile organic compounds in paper mills

Lin, Zhifeng; Shen, Wenhao; Tong, Xin; Corriou, Jean‐Pierre

doi:10.1007/s10311-020-00992-0

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…1−3 Inhalation of benzene in a short time can cause poisoning of the central nervous system, 4 and it greatly increases the possibility of cancer. 5 Consequently, it is essential to monitor benzene vapor in air. Instrumental analysis methods include gas chromatography, 6 quartz crystal microbalance, 7 surface-enhanced infrared absorption spectrum, 8 and so on.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Volatile organic compounds (VOCs), as the main pollution source, endanger the living environment of human beings. Typically, benzene vapor, as one of the most harmful VOCs to the human body, is widely found in construction, interior decoration, paint, automobile exhaust, cigarette smoke, and other industrial production processes. − Inhalation of benzene in a short time can cause poisoning of the central nervous system, and it greatly increases the possibility of cancer . Consequently, it is essential to monitor benzene vapor in air.…”

Section: Introductionmentioning

confidence: 99%

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Biomimetic Metal–Organic Framework-Based Photonic Crystal Sensor for Highly Sensitive Visual Detection and Effective Discrimination of Benzene Vapor

Kou

Zhang

2023

ACS Appl. Mater. Interfaces

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Due to the large specific surface area and continuous pores in structures, metal–organic frameworks (MOFs) show great advantages in the adsorption of volatile organic compounds (VOCs). Photonic crystal (PC) sensors derived from MOFs are promising for the visual detection of VOC gases. However, they still have problems of low sensitivity and poor color saturation and tunability. Here, inspired by vapor-sensitive scales of Tmesisternus isabellae beetle and scattering light absorption of polydopamine, a porous one-dimensional PC sensor is constructed by combining ZIF-8 with TiO2@PDA nanoparticles. The PC sensor shows significant color changes under different concentrations of benzene vapor and reaches a detection limit of 0.8 g/m3. It has a response time of less than 1 s and maintains stable optical performance after 100 times of reuse. Moreover, ZIF-67 and ZIF-7 are both incorporated into the PCs for comparison; it reveals that ZIF-8 shows superior benzene detecting property. Additionally, the synergistic adsorption of VOCs in inner and outer holes of the ZIF-8 layer is demonstrated by real-time mass monitoring with quartz crystal microbalance with dissipation. This study provides a valuable reference for the fabrication of high-quality MOF-based PC sensors and sensing mechanism study between microscopic molecular adsorption and macroscopic performance.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biomimetic Metal–Organic Framework-Based Photonic Crystal Sensor for Highly Sensitive Visual Detection and Effective Discrimination of Benzene Vapor

Kou

Zhang

2023

ACS Appl. Mater. Interfaces

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“…In common gaseous pollutants, SO 2 and NO x are the main precursors of acid rain, haze and/or photochemical smog. − Trace heavy metals such as mercury (Hg), arsenic (As), etc. have persistence, bioaccumulation, neurological toxicity, and potential carcinogenic properties. − VOCs can irritate the eyes and respiratory tract, cause cancer, and recently are also considered to be the important precursors for the formation of fine particles (PM 2.5 ) and ozone. − H 2 S is not only a precursor of acid rain, but also can corrode equipment and deactivate catalysts/electrodes. − Air pollution has become one of the serious obstacles to the further development of global economy and processive promotion of human living standard. Therefore, governments and scientists all over the world have taken a wide range of measures to reduce the emissions of gaseous pollutants that come from various emission sources.…”

Section: Introductionmentioning

confidence: 99%

A Critical Review on Removal of Gaseous Pollutants Using Sulfate Radical-based Advanced Oxidation Technologies

Liu

Wang

2021

Environ. Sci. Technol.

114

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Excessive emissions of gaseous pollutants such as SO2, NO x , heavy metals (Hg, As, etc.), H2S, VOCs, etc. have triggered a series of environmental pollution incidents. Sulfate radical (SO4•–)-based advanced oxidation technologies (AOTs) are one of the most promising gaseous pollutants removal technologies because they can not only produce active free radicals with strong oxidation ability to simultaneously degrade most of gaseous pollutants, but also their reaction processes are environmentally friendly. However, so far, the special review focusing on gaseous pollutants removal using SO4•–-based AOTs is not reported. This review reports the latest advances in removal of gaseous pollutants (e.g., SO2, NO x , Hg, As, H2S, and VOCs) using SO4•–-based AOTs. The performance, mechanism, active species identification and advantages/disadvantages of these removal technologies using SO4•–-based AOTs are reviewed. The existing challenges and further research suggestions are also commented. Results show that SO4•–-based AOTs possess good development potential in gaseous pollutant control field due to simple reagent transportation and storage, low product post-treatment requirements and strong degradation ability of refractory pollutants. Each SO4•–-based AOT possesses its own advantages and disadvantages in terms of removal performance, cost, reliability, and product post-treatment. Low free radical yield, poor removal capacity, unclear removal mechanism/contribution of active species, unreliable technology and high cost are still the main problems in this field. The combined use of multiactivation technologies is one of the promising strategies to overcome these defects since it may make up for the shortcomings of independent technology. In order to improve free radical yield and pollutant removal capacity, enhancement of mass transfer and optimization design of reactor are critical issues. Comprehensive consideration of catalytic materials, removal chemistry, mass transfer and reactor is the promising route to solve these problems. In order to clarify removal mechanism, it is essential to select suitable free radical sacrificial agents, probes and spin trapping agents, which possess high selectivity for target specie, high solubility in water, and little effect on activity of catalyst itself and mass transfer/diffusion parameters. In order to further reduce investment and operating costs, it is necessary to carry out the related studies on simultaneous removal of more gaseous pollutants.

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Removal of pollutants from gas streams using Fenton (-like)-based oxidation systems: A review

Liu

Shi

Wang

2021

Journal of Hazardous Materials

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An autoanalyzer for real-time detection of benzene and volatile organic compounds in paper mills

Cited by 4 publications

References 12 publications

Biomimetic Metal–Organic Framework-Based Photonic Crystal Sensor for Highly Sensitive Visual Detection and Effective Discrimination of Benzene Vapor

Biomimetic Metal–Organic Framework-Based Photonic Crystal Sensor for Highly Sensitive Visual Detection and Effective Discrimination of Benzene Vapor

A Critical Review on Removal of Gaseous Pollutants Using Sulfate Radical-based Advanced Oxidation Technologies

Removal of pollutants from gas streams using Fenton (-like)-based oxidation systems: A review

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