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ADSORPTION AND PHOTOCATALYTIC DEGRADATION OF AQUEOUS SOLUTION OF POLAR ORGANIC POLLUTANTS

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Last updated: 03 Jan 2025

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Tags

Chemistry

Abstract

This study examines the adsorption and the photodegradation of isopropanol and its degradation intermediate, acetone, as a polar organic pollutant. Both isopropanol (100 mg/L) and formed acetone are shown to be effectively photodegraded in aqueous suspensions of 2g/L TiO2. It was found that dark adsorption isothermal of isopropanol on the surface of TiO2 was unfavoured process, which suggesting that the photodegradation reaction occurred in the bulk solution (homogeneous) rather than on the surface (heterogeneous) of the photocatalyst. In addition, homogeneous reaction is further confirmed by the decrease of the degradation rate of isopropanol in presence of 1x10-4 M tetranitromethane (TNM) which is effectively eliminating the formation of free OH• radicals in the bulk solution. Under the studied conditions, the parent isopropanol and its degradation product, acetone, were completely degraded from aqueous solution in about 2.5 -5.5 h.

DOI

10.21608/absb.2009.7678

Keywords

Isopropanol, Acetone, Photocatalytic degradation, TiO2, Polar organic compounds, Adsorption

Volume

20

Article Issue

Issue 2-A

Related Issue

1473

Issue Date

2009-12-01

Receive Date

2009-08-13

Publish Date

2009-12-01

Page Start

191

Page End

207

Print ISSN

1110-2535

Online ISSN

2636-3305

Article File

ABSB_Volume 20_Issue Issue 2-A_Pages 191-207.pdf

PDF . 1.1MB

Link

https://absb.journals.ekb.eg/article_7678.html

Detail API

https://absb.journals.ekb.eg/service?article_code=7678

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12

Type

Original Article

Type Code

520

Publication Type

Journal

Publication Title

Al-Azhar Bulletin of Science

Publication Link

https://absb.journals.ekb.eg/

MainTitle

ADSORPTION AND PHOTOCATALYTIC DEGRADATION OF AQUEOUS SOLUTION OF POLAR ORGANIC POLLUTANTS

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Type

Article

Created At

22 Jan 2023