Photo Catalytic Oxidation Degradation Of Volatile Organic Compound With Nano-Tio2/Ldpe Composite Film

Suwannahong, Kowit; Sanongra, Wipada; Kruenate, Jittiporn; Phibanchon, Sarun; Jawjit, Siriuma; Khamwichit, Wipawee

doi:10.5281/zenodo.1071105

2013

DOI: 10.5281/zenodo.1071105

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Photo Catalytic Oxidation Degradation Of Volatile Organic Compound With Nano-Tio2/Ldpe Composite Film

Kowit Suwannahong¹,

Wipada Sanongra²,

Jittiporn Kruenate³

et al.

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Volatile Organic Compound (VOC) Removal via Photocatalytic Oxidation Using TiO2 Coated Nanofilms

Khami

Khamwichit

Rangkupan

et al. 2017

Walailak J Sci & Tech

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In this paper, toluene removal via photocatalytic oxidation using TiO2 dip coated nanofilms is presented. Nanofilms were synthesized from bacterial cellulose using the electrospinning technique. The physical properties of the nanofilms were analyzed by scanning electron microscopy (SEM). The ratio of bacterial cellulose/nylon used in the spinning process was 0.165:1. The results from SEM showed that the structure of the TiO2 composite nanofilms was rutile crystalline with an average particle size of 20 nm, and synthesized nanofilms had an average size of 20 - 30 nm. The band gap energies of TiO2-dip coated nanofilms ranged from 3.18 - 3.21 eV. SEM results of TiO2 coated nanofilms suggested that the TiO2 was rather uniformly distributed onto the surface of the nanofilms. The actual amount of TiO2 coated on the nanofilms was estimated using thermogravimetric analysis (TGA) for 1x1 cm2 surface area. It was found that 0.1852, 0.2897 and 0.7275 mg of TiO2 were coated on the surface of the nanofilms for 1, 2.5 and 5 % (weight) TiO2 dosage, respectively. The photocatalytic activity of the nanofilms was tested for the removal of gaseous toluene in a photocatalytic reactor. Experimental conditions were set as follows: UV light intensity of approximately 2.7 mW.cm-2, flow rate of 0.2 L.min-1, and an initial toluene concentration of about 200±20 ppm, and a retention time at 200 min. The degradation rate of toluene increased with increasing dosage of TiO2 from 1, 2.5 and 5 %. The nanofilms at a 5 % dosage yielded the highest removal efficiency of 92.71 %, followed by the 2.5 and 1 % dosage, respectively.

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Volatile Organic Compound (VOC) Removal via Photocatalytic Oxidation Using TiO2 Coated Nanofilms

Khami

Khamwichit

Rangkupan

et al. 2017

Walailak J Sci & Tech

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Photo Catalytic Oxidation Degradation Of Volatile Organic Compound With Nano-Tio2/Ldpe Composite Film

Cited by 1 publication

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Volatile Organic Compound (VOC) Removal via Photocatalytic Oxidation Using TiO2 Coated Nanofilms

Volatile Organic Compound (VOC) Removal via Photocatalytic Oxidation Using TiO2 Coated Nanofilms

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