Sinergistic effect of titanium dioxide and iron oxide aerosols in adsorption and photocatalytic oxidation of dimethyl methylphosphonate

A. S. Besov; A. V. Vorontsov

doi:10.1134/S0036024415040044

Sinergistic effect of titanium dioxide and iron oxide aerosols in adsorption and photocatalytic oxidation of dimethyl methylphosphonate

A. S. Besov, A. V. Vorontsov

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4 Scopus citations

Abstract

Kinetics of adsorption, dark and photocatalytic destruction of dimethyl methylphosphonate (DMMP) vapors was investigated on the surface of nanosized FeOOH (3 nm) and mixture of FeOOH with TiO₂ (5 nm) (1: 1) in aerosol state in a closed chamber. FeOOH aerosol adsorbs DMMP (100 ppm) with characteristic time 32 s and does not show photocatalytic activity. Adsorbed DMMP undergoes hydrolysis with formation of gaseous methanol with characteristic time 11 min, while mixed FeOOH-TiO₂ aerosol adsorbs DMMP and converts it into CO and CO₂ under the action of UV light.

Original language	English
Pages (from-to)	693-698
Number of pages	6
Journal	Russian Journal of Physical Chemistry A
Volume	89
Issue number	4
DOIs	https://doi.org/10.1134/S0036024415040044
State	Published - Apr 2015
Externally published	Yes

Keywords

TiO and FeOOH aerosol
photocatalytic oxidation
synergism

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10.1134/S0036024415040044

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title = "Sinergistic effect of titanium dioxide and iron oxide aerosols in adsorption and photocatalytic oxidation of dimethyl methylphosphonate",

abstract = "Kinetics of adsorption, dark and photocatalytic destruction of dimethyl methylphosphonate (DMMP) vapors was investigated on the surface of nanosized FeOOH (3 nm) and mixture of FeOOH with TiO2 (5 nm) (1: 1) in aerosol state in a closed chamber. FeOOH aerosol adsorbs DMMP (100 ppm) with characteristic time 32 s and does not show photocatalytic activity. Adsorbed DMMP undergoes hydrolysis with formation of gaseous methanol with characteristic time 11 min, while mixed FeOOH-TiO2 aerosol adsorbs DMMP and converts it into CO and CO2 under the action of UV light.",

keywords = "TiO and FeOOH aerosol, photocatalytic oxidation, synergism",

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note = "Publisher Copyright: {\textcopyright} 2015 Pleiades Publishing, Ltd.",

year = "2015",

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T1 - Sinergistic effect of titanium dioxide and iron oxide aerosols in adsorption and photocatalytic oxidation of dimethyl methylphosphonate

AU - Besov, A. S.

AU - Vorontsov, A. V.

PY - 2015/4

Y1 - 2015/4

N2 - Kinetics of adsorption, dark and photocatalytic destruction of dimethyl methylphosphonate (DMMP) vapors was investigated on the surface of nanosized FeOOH (3 nm) and mixture of FeOOH with TiO2 (5 nm) (1: 1) in aerosol state in a closed chamber. FeOOH aerosol adsorbs DMMP (100 ppm) with characteristic time 32 s and does not show photocatalytic activity. Adsorbed DMMP undergoes hydrolysis with formation of gaseous methanol with characteristic time 11 min, while mixed FeOOH-TiO2 aerosol adsorbs DMMP and converts it into CO and CO2 under the action of UV light.

AB - Kinetics of adsorption, dark and photocatalytic destruction of dimethyl methylphosphonate (DMMP) vapors was investigated on the surface of nanosized FeOOH (3 nm) and mixture of FeOOH with TiO2 (5 nm) (1: 1) in aerosol state in a closed chamber. FeOOH aerosol adsorbs DMMP (100 ppm) with characteristic time 32 s and does not show photocatalytic activity. Adsorbed DMMP undergoes hydrolysis with formation of gaseous methanol with characteristic time 11 min, while mixed FeOOH-TiO2 aerosol adsorbs DMMP and converts it into CO and CO2 under the action of UV light.

KW - TiO and FeOOH aerosol

KW - photocatalytic oxidation

KW - synergism

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AN - SCOPUS:84925617741

SN - 0036-0244

VL - 89

SP - 693

EP - 698

JO - Russian Journal of Physical Chemistry A

JF - Russian Journal of Physical Chemistry A

IS - 4

ER -

Sinergistic effect of titanium dioxide and iron oxide aerosols in adsorption and photocatalytic oxidation of dimethyl methylphosphonate

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