Performance Assessment of Ordered Porous Electrospun Honeycomb Fibers for the Removal of Atmospheric Polar Volatile Organic Compounds

Wang, Yixin; Yu, Deng‐Guang; Chang, Chang-Tang

doi:10.3390/nano8050350

Cited by 21 publications

(10 citation statements)

References 35 publications

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“…KNOWLEDGE FOR CULTIVATING ENVIRONMENTAL ENGINEERING UNDERGRADUATE STUDENTS -TREATMENT OF GAS POLLUTION Fig. 3 shows a diagram about that the knowledge from chemistry and material engineering can be nice teaching materials for cultivating the undergraduate students about how to clean volatile organic compounds (VOCs), a typical air pollution source [16].…”

Section: The Role Of Materials Science and Engineeringmentioning

confidence: 99%

“…Based on the fundamental knowledge about materials science and chemistry, it is relatively to deduce the acetone removal mechanism. It should be composed of three successive steps: 1) acetone molecules were adsorbed on the surface of honeycomb nanofibers owing to the Brownian motion; 2) the acetone molecules were diffused into the inner pores of honeycomb fibers thanks to the core adsorption sites provided by the OPM distributed in the PAN fibers; and 3) acetone molecules were adsorbed through the molecular interactions between carboxyl group of acetone and Si-O groups of OPM [16].…”

Section: The Role Of Materials Science and Engineeringmentioning

confidence: 99%

“…3. A diagram showing that the knowledge about material science and engineering can be fine teaching materials for cultivating the undergraduate students about how to treat polluted atmosphere [16].…”

Section: The Role Of Materials Science and Engineeringmentioning

confidence: 99%

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The Role of Knowledge about Material Science and Engineering in Cultivating Students Majoring in Environmental Engineering

Wen¹,

Yan²,

Yang³

et al. 2019

Proceedings of the 2019 5th International Conference on Social Science and Higher Education (ICSSHE 2019)

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Environmental professional education is the most important segment in China's environmental work. For the undergraduate students majoring in the Environmental Engineering Specialty (EES), strengthening their capabilities through a suitable curriculum arrangement is necessary. Environmental Engineering and Material Science and Engineering, similar representatives of modern science and technology, have a large overlapped area. Interdisciplinary teaching for the undergraduate students majoring in them is easy and facile to be carried out. In this paper, we report how to foster the undergraduate students majoring in EES using knowledge about material science and engineering, particularly the advanced technology and advanced functional materials such as electrospinning and electrospun nanofibers. Electrospun zein nanofibers are useful materials for removing Pb ion from wastewater, and molecular sieve-loaded polyacrylonitrile nanofibers are highly efficacious in cleaning the volatile organic compound acetone from the atmosphere. These examples about material design, processing and applications can be vivid interdisciplinary teaching materials for promoting the students into professional talents in the fields of environmental engineering.

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Section: The Role Of Materials Science and Engineeringmentioning

confidence: 99%

Section: The Role Of Materials Science and Engineeringmentioning

confidence: 99%

See 1 more Smart Citation

The Role of Knowledge about Material Science and Engineering in Cultivating Students Majoring in Environmental Engineering

Wen¹,

Yan²,

Yang³

et al. 2019

Proceedings of the 2019 5th International Conference on Social Science and Higher Education (ICSSHE 2019)

Self Cite

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“…Therefore, many reviews are available on 1D to 3D inorganic-nanomaterials-based semiconducting gas/VOCs sensors [ 25 , 26 , 27 , 28 , 29 ]. Similarly, the utilization of semiconducting polymeric/hybrid/organic-based semiconducting nanomaterials were also proposed towards selective sensing of VOCs [ 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. However, contrast to those polymeric/hybrid/organic nanostructures, inorganic semiconducting nanomaterials are highly admirable due to the low cost processing, durability, environment affordability, and high reproducibility, etc.…”

Section: Introductionmentioning

confidence: 99%

Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

Shellaiah

Sun

2021

Sensors

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Environmental pollution related to volatile organic compounds (VOCs) has become a global issue which attracts intensive work towards their controlling and monitoring. To this direction various regulations and research towards VOCs detection have been laid down and conducted by many countries. Distinct devices are proposed to monitor the VOCs pollution. Among them, chemiresistor devices comprised of inorganic-semiconducting materials with diverse nanostructures are most attractive because they are cost-effective and eco-friendly. These diverse nanostructured materials-based devices are usually made up of nanoparticles, nanowires/rods, nanocrystals, nanotubes, nanocages, nanocubes, nanocomposites, etc. They can be employed in monitoring the VOCs present in the reliable sources. This review outlines the device-based VOC detection using diverse semiconducting-nanostructured materials and covers more than 340 references that have been published since 2016.

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“…Relative to traditional activated carbon, an ACF material has the advantages of larger specific surface area, higher pore size, more stable performance, faster adsorption rate, and larger adsorption capacity. These advantages cause the ACFs to have a wide application potential in wastewater treatment [28,29]. Yu et al [30] optimized and improved a nitric acid oxidation process by using microwaves and sonication.…”

mentioning

confidence: 99%

Simultaneous Catalysis of Sulfite Oxidation and Uptake of Heavy Metals by Bifunctional Activated Carbon Fiber in Magnesia Desulfurization

Wang

et al. 2020

Catalysts

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Sulfite and heavy metals are crucial pollutants in the slurry produced by flue gas desulfurization. In this study, a novel cobalt-based activated carbon fiber (Co-ACFs) catalyst-adsorbent was synthesized using an impregnation method; this bifunctional catalyst-adsorbent was used in wet magnesia desulfurization for the simultaneous catalytic oxidation of magnesium sulfite and uptake of heavy metal (Hg 2+ , Cd 2+ , and Ni 2+ ) ions. The morphology and surface chemistry of ACFs before and after cobalt loading were investigated using various characterization methods. The kinetics on catalytic oxidation of magnesium sulfite was investigated, and the effects of operation conditions on the simultaneous adsorption capacity of heavy metals were examined. Relative to a non-catalysis material, the 40% Co-ACFs material increased the oxidation rate of magnesium sulfite by more than five times. The Langmuir model can describe the adsorption behavior of Co-ACFs on Hg 2+ , Cd 2+ , and Ni 2+ , indicating that the simultaneous uptake of heavy metals is a single-layer adsorption process. The maximum adsorption capacities for Hg 2+ , Cd 2+ , and Ni 2+ are 333.3, 500, and 52.6 mg/g, respectively. A pseudo-second-order model confirmed that the removal of heavy metals is controlled by the chemisorption process.Catalysts 2020, 10, 244 2 of 18 oxidation rate of magnesium sulfite, the oxidation is difficult to accomplish in a real desulfurization process. This problem has become the paramount bottleneck of the oxidation enrichment technology. The excessive sulfite might exhaust the dissolved oxygen in the effluent and decomposed into SO 2 , resulting in further environmental risks. Meanwhile, a large number of heavy metal particles are collected in the desulfurization slurry, which can migrate and transform during the desulfurization process. For example, Hg 2+ present in the desulfurized slurry is easily released into the atmospheric environment because the ion is reduced to Hg 0 by sulfite [9][10][11]. Some co-existing Cd 2+ ions may co-crystallize with the saturated magnesium sulfate in the recovered products to cause secondary pollution. Therefore, the simultaneous removal of heavy metals from desulfurized slurries becomes another technical problem for magnesium sulfate recovery.Studies have shown that transition metal ions such as Co 2+ , Mn 2+ , Fe 2+ , and Cu 2+ can be used for improving the oxidation rate of sulfite. Among these ions, Co 2+ exhibits the highest performance in terms of sulfite oxidation [12]. However, separating the homogeneous catalyst from the desulfurization slurry is difficult and the material must be supplemented continuously, thus resulting in a high operation cost and secondary pollution due to the use of magnesium sulfate products. To address this problem, our research group developed a series of cobalt-based heterogeneous catalysts [13-18] by using impregnation, coprecipitation, and hydrothermal synthesis. These catalysts effectively solved the catalyst separation problem. However, a magnesium desulfurizat...

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Performance Assessment of Ordered Porous Electrospun Honeycomb Fibers for the Removal of Atmospheric Polar Volatile Organic Compounds

Cited by 21 publications

References 35 publications

The Role of Knowledge about Material Science and Engineering in Cultivating Students Majoring in Environmental Engineering

The Role of Knowledge about Material Science and Engineering in Cultivating Students Majoring in Environmental Engineering

Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

Simultaneous Catalysis of Sulfite Oxidation and Uptake of Heavy Metals by Bifunctional Activated Carbon Fiber in Magnesia Desulfurization

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