Photocatalytic Degradation of Salicylic Acid and Reduction of Cr(VI) using TiO2

Ramataobane K. Mphela, William Msimanga, Kwena Pete, Haleden Chiririwa, Aoyi Ochieng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Water pollution caused by organic and inorganic contaminants represents an important ecological and health hazard. In this study the photocatalytic reduction of Cr(VI) and degradation of salicylic acid (SA) in aqueous suspensions using commercial TiO2 was investigated. The effect of operating parameters such as photocatalyst loading, initial pollutant concentration and pH were optimized in aqueous solution containing salicylic acid alone and hexavalent chromium alone. The performance of the photocatalyst reactor was evaluated on the basis of salicylic acid removal and metal ion reduction. The rate of salicylic degradation for the ternary salicylic acid /Cr(VI)/TiO2 system were generally lower than that for the respective binary salicylic acid/TiO2 systems. This could be attributed to partial catalyst deactivation to some extent.
Original languageEnglish
Title of host publicationProceedings of 2016 5th International Conference on Advances in Engineering and Technology
Pages30-36
Number of pages7
ISBN (Electronic) 978-93-84422-69-1
Publication statusPublished - 2016
Event2016 5th International Conference on Advances in Engineering and Technology - New York, United States
Duration: Jun 8 2016Jun 9 2016

Conference

Conference2016 5th International Conference on Advances in Engineering and Technology
Abbreviated titleICAET 2016
CountryUnited States
CityNew York
Period6/8/166/9/16

Fingerprint

Salicylic Acid
Degradation
Photocatalysts
Health hazards
Catalyst deactivation
Water pollution
Metal ions
Suspensions
chromium hexavalent ion
Impurities

Cite this

Mphela, R. K., Msimanga, W., Pete, K., Chiririwa, H., & Ochieng, A. (2016). Photocatalytic Degradation of Salicylic Acid and Reduction of Cr(VI) using TiO2. In Proceedings of 2016 5th International Conference on Advances in Engineering and Technology (pp. 30-36)
Mphela, Ramataobane K. ; Msimanga, William ; Pete, Kwena ; Chiririwa, Haleden ; Ochieng, Aoyi. / Photocatalytic Degradation of Salicylic Acid and Reduction of Cr(VI) using TiO2. Proceedings of 2016 5th International Conference on Advances in Engineering and Technology. 2016. pp. 30-36
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abstract = "Water pollution caused by organic and inorganic contaminants represents an important ecological and health hazard. In this study the photocatalytic reduction of Cr(VI) and degradation of salicylic acid (SA) in aqueous suspensions using commercial TiO2 was investigated. The effect of operating parameters such as photocatalyst loading, initial pollutant concentration and pH were optimized in aqueous solution containing salicylic acid alone and hexavalent chromium alone. The performance of the photocatalyst reactor was evaluated on the basis of salicylic acid removal and metal ion reduction. The rate of salicylic degradation for the ternary salicylic acid /Cr(VI)/TiO2 system were generally lower than that for the respective binary salicylic acid/TiO2 systems. This could be attributed to partial catalyst deactivation to some extent.",
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Mphela, RK, Msimanga, W, Pete, K, Chiririwa, H & Ochieng, A 2016, Photocatalytic Degradation of Salicylic Acid and Reduction of Cr(VI) using TiO2. in Proceedings of 2016 5th International Conference on Advances in Engineering and Technology. pp. 30-36, 2016 5th International Conference on Advances in Engineering and Technology, New York, United States, 6/8/16.

Photocatalytic Degradation of Salicylic Acid and Reduction of Cr(VI) using TiO2. / Mphela, Ramataobane K.; Msimanga, William; Pete, Kwena; Chiririwa, Haleden; Ochieng, Aoyi.

Proceedings of 2016 5th International Conference on Advances in Engineering and Technology. 2016. p. 30-36.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Photocatalytic Degradation of Salicylic Acid and Reduction of Cr(VI) using TiO2

AU - Mphela, Ramataobane K.

AU - Msimanga, William

AU - Pete, Kwena

AU - Chiririwa, Haleden

AU - Ochieng, Aoyi

PY - 2016

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N2 - Water pollution caused by organic and inorganic contaminants represents an important ecological and health hazard. In this study the photocatalytic reduction of Cr(VI) and degradation of salicylic acid (SA) in aqueous suspensions using commercial TiO2 was investigated. The effect of operating parameters such as photocatalyst loading, initial pollutant concentration and pH were optimized in aqueous solution containing salicylic acid alone and hexavalent chromium alone. The performance of the photocatalyst reactor was evaluated on the basis of salicylic acid removal and metal ion reduction. The rate of salicylic degradation for the ternary salicylic acid /Cr(VI)/TiO2 system were generally lower than that for the respective binary salicylic acid/TiO2 systems. This could be attributed to partial catalyst deactivation to some extent.

AB - Water pollution caused by organic and inorganic contaminants represents an important ecological and health hazard. In this study the photocatalytic reduction of Cr(VI) and degradation of salicylic acid (SA) in aqueous suspensions using commercial TiO2 was investigated. The effect of operating parameters such as photocatalyst loading, initial pollutant concentration and pH were optimized in aqueous solution containing salicylic acid alone and hexavalent chromium alone. The performance of the photocatalyst reactor was evaluated on the basis of salicylic acid removal and metal ion reduction. The rate of salicylic degradation for the ternary salicylic acid /Cr(VI)/TiO2 system were generally lower than that for the respective binary salicylic acid/TiO2 systems. This could be attributed to partial catalyst deactivation to some extent.

M3 - Conference contribution

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BT - Proceedings of 2016 5th International Conference on Advances in Engineering and Technology

ER -

Mphela RK, Msimanga W, Pete K, Chiririwa H, Ochieng A. Photocatalytic Degradation of Salicylic Acid and Reduction of Cr(VI) using TiO2. In Proceedings of 2016 5th International Conference on Advances in Engineering and Technology. 2016. p. 30-36