Introduction of amino and rGO into PP nonwoven surface for removal of gaseous aromatic pollutants and particulate matter from air

Tang, Xiaolong; Wei, Junfu; Kong, Zhiyun; Zhang, Huan; Jian, Tian

doi:10.1016/j.apsusc.2020.145631

Cited by 27 publications

(18 citation statements)

References 30 publications

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“…Likewise, Zhu et al ( 2019) (Zhu et al, 2019) (Zhu et al, 2019)achieved a removal efficiency of 80% for formaldehyde, with an adsorption capacity of 48.9 mg/g (gram of adsorbent) (Zhu et al, 2019). Zhang et al (2020) recorded capacities of up to 164.4 mg/g for toluene and 275.3 mg/g for acetaldehyde (Zhang et al, 2020), while a capacity of 39.1 mg/g has been reported by Tang et al (2020) for benzene, toluene and xylene (Tang et al, 2020) (Table 3).…”

Section: Mechanical Filtrationmentioning

confidence: 88%

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A state–of–the-art review on indoor air pollution and strategies for indoor air pollution control

et al. 2021

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Section: Mechanical Filtrationmentioning

confidence: 88%

“…Single pass efficiencies higher than 90% are typically achieved in conventional filters, even at high areal flow rates of 3240 m 3 /m 2 h (Polidori et al, 2013). New materials such as zeolites (Zhu et al, 2019) or polymers (Tang et al, 2020;Wang et al, 2013) have been tested as effective filters for particulate matter (Table 2).…”

Section: Mechanical Filtrationmentioning

confidence: 99%

A state–of–the-art review on indoor air pollution and strategies for indoor air pollution control

et al. 2021

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“…On the other hand, 2D layered materials such as graphene and boron nitride (BN) have attracted significant attention in recent years as new functional materials in filtration membranes and protective masks. − Their advantages include excellent barrier properties, high mechanical strength and stability, and unique optical and electrical properties. − For instance, surface-functionalized BN nanoplatelets were incorporated in a nonwoven PP filter, and the composite membrane showed enhanced thermal conductivity and antimicrobial property . A graphene layer was added onto the nonwoven fabrics, which enabled electrothermal sterilization capability .…”

Section: Introductionmentioning

confidence: 99%

Ultrathin Polydopamine-Graphene Oxide Hybrid Coatings on Polymer Filters with Improved Filtration Performance and Functionalities

Kasbe

Gade

Liu

et al. 2021

ACS Appl. Bio Mater.

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Thin polymer fiber mats, in particular those made of nonwoven polypropylene (PP) fibers, are extensively used for medical and industrial filtration. The recent pandemic has increased the demand for the fabrication of protective masks. The nonwoven PP filter has limitations in filtration efficiency and lacks advanced functionalities. Here, we propose a simple, effective, and low-cost method to functionalize PP filters and endow antimicrobial and photothermal properties. Our approach is based on the deposition of an ultrathin hybrid coating composed of graphene oxide (GO) and polydopamine on the surface of PP filters by spraycoating. The complementary properties and synergic effects of GO and polydopamine in the ultrathin coating improved the filtration efficiency of the PP filter by 20% with little change in pressure drop. Single component coatings did not result in similar improvements in performance. The ultrathin coating also makes the surface of the filter more hydrophilic with negative charges. The photothermal property of GO enables a rapid temperature increase of the surface-coated filter upon light irradiation for easy sterilization. Furthermore, cationic polymer brushes can be grafted to the ultrathin hybrid coating, which adds the highly desired antimicrobial property to the PP filters for their more effective protection against microorganisms.

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“…They have gained widespread popularity in fabrics. 1,2 PP fabrics have been used as an innovative solution to several challenges that face daily life, including clothing, personal hygiene, and medicine. PP is safe to use because it is lightweight (low-density), inexpensive, and has excellent chemical resistance.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the softness performance of polyethylene/polypropylene micro‐nanofibrous fabrics for skin contacts

Zhen

Zhang

Sun

et al. 2021

J of Applied Polymer Sci

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The softness of polypropylene (PP) fabrics, which is related to fiber properties and fabric structure, is a pivotal perception for their application in skin contacts. However, tailoring the softness of PP fabrics remains challenging. The effects of mixing different percentages of polyethylene (PE) and PP during the melt-blowing process on the polymer properties and morphology characteristics, including the softness, preparation, and characterization of the micro-nanofibrous fabrics were determined. Rheological tests and differential scanning calorimetry results showed that the addition of PE helped destroy the crystalline integrity of PP. Moreover, scanning electron microscopy images depicted a fluffy structure consisting of micro-nanofibers with average diameters ranging from 1.3 to 3.2 μm. Furthermore, the softness scores ranged from 70.39 to 83.11 by changing the die temperature and PE mass ratio by applying a response surface model. Consequently, this micro-nanofibrous fabric may become a good material for skin contacts, such as baby diapers, feminine sanitary, and other personal hygiene uses.

show abstract

Introduction of amino and rGO into PP nonwoven surface for removal of gaseous aromatic pollutants and particulate matter from air

Cited by 27 publications

References 30 publications

A state–of–the-art review on indoor air pollution and strategies for indoor air pollution control

A state–of–the-art review on indoor air pollution and strategies for indoor air pollution control

Ultrathin Polydopamine-Graphene Oxide Hybrid Coatings on Polymer Filters with Improved Filtration Performance and Functionalities

Tailoring the softness performance of polyethylene/polypropylene micro‐nanofibrous fabrics for skin contacts

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