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Chemosphere

Title:		Sericin-coated polyester based air-filter for removal of particulate matter and volatile organic compounds (BTEX) from indoor air
Author(s):		Verma VK; Subbiah S; Kota SH;
Address:		"Department of Chemical Engineering, Indian Institute of Technology, Guwahati, 781039, India. Electronic address: verma.vishalkr@gmail.com. Department of Chemical Engineering, Indian Institute of Technology, Guwahati, 781039, India. Electronic address: senthilmurugan@iitg.ac.in. Department of Civil Engineering, Indian Institute of Technology, Guwahati, 781039, India. Electronic address: harshakota@gmail.com"
Journal Title:		Chemosphere
Year:		2019
Volume:		20190727
Issue:
Page Number:		124462 -
DOI:		10.1016/j.chemosphere.2019.124462
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Particulate matter and volatile organic compounds have emerged as a prime environmental concern with increasing air pollution in metropolitan cities leading to lung and heart-related issues. This paper describes a facile and novel method for fabrication of polyester based air filter via surface coating with Sericin for imparting effective removal of particulate matter and volatile organic compounds. A simple dip-coating method followed by thermal fixation has been adopted to coat Sericin on the polyester fiber. The developed changes in surface functionality and morphology of the polyester fiber were confirmed by Attenuated total reflection Fourier-transform infrared spectroscopy and Field emission scanning electron microscopy analysis. The fabricated air filter was tested for removal of particulate matter (generated burning incense stick) and volatile organic compounds (generated vaporizing gasoline), in an indoor chamber. The Sericin coated filter was able to remove the PM(2.5) and PM (10) (from 1000?ª+mug/m(3) level to 5?ª+mug/m(3) in a 6.28?ª+m(3) chamber) within 27 and 23?ª+min of operation, respectively. The fabricated filter very effectively removed particulate matter for 2160 cycles with intermittent washing. The Sericin-coated air filter also proved very effective for removal of volatile organic compounds (Benzene, Toluene, Ethylbenzene and Xylene) from an indoor chamber at a varying initial concentration of 100-1000?ª+mug/m(3). The adsorption behavior was described by Langmuir-Freundlich (sips) isotherm and pseudo-first order kinetics with minimal error. The maximum adsorption capacity (mg/g) obtained with Sips Isotherm fitting followed the order Xylene (6.97)>Ethyl Benzene (5.68)> Toluene (5.35) >Benzene (4.78)"
Keywords:		"Adsorption *Air Filters Air Pollutants/analysis/isolation & purification *Air Pollution, Indoor Benzene/analysis/isolation & purification Benzene Derivatives/isolation & purification Gasoline/analysis Microscopy, Electron, Scanning Particulate Matter/anal;"
Notes:		"MedlineVerma, Vishal Kumar Subbiah, Senthilmurugan Kota, Sri Harsha eng England 2019/08/09 Chemosphere. 2019 Dec; 237:124462. doi: 10.1016/j.chemosphere.2019.124462. Epub 2019 Jul 27"