Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2

Mervyn Khune, John Akach, Aoyi Ochieng

Research output: Contribution to conferencePaper

Abstract

In this study, solar photocatalysis was employed to remove phenol from synthetic wastewater. Composite catalysts of different compositions were synthesized and applied for solar photocatalysis. The effect of the silica loading, composite loading, initial phenol concentration and initial solution pH on the photodegradation of phenol was investigated. It was found that a decrease in silica loading and initial concentration of phenol led to an increase in photodegradation. Increasing the composite loading and pH, on the other hand, led to an increase in photodegradation up to a limit. The best photodegradation was achieved at a catalyst composition of 60% TiO2, composite loading of 5 g/L, phenol concentration of 15 ppm and solution pH of 4. At these conditions, there was a 100% degradation of phenol within 5 hours.
Original languageEnglish
Pages19-22
Number of pages4
Publication statusPublished - 2014
Event2014 International Conference on Chemical Engineering & Advanced Computational Technologies - Pretoria, South Africa
Duration: Nov 24 2014Nov 25 2014

Conference

Conference2014 International Conference on Chemical Engineering & Advanced Computational Technologies
Abbreviated titleICCEACT’2014
CountrySouth Africa
CityPretoria
Period11/24/1411/25/14

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Photodegradation
Phenol
Silicon Dioxide
Catalysts
Composite materials
Photocatalysis
Chemical analysis
Wastewater
Degradation

Cite this

Khune, M., Akach, J., & Ochieng, A. (2014). Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2. 19-22. Paper presented at 2014 International Conference on Chemical Engineering & Advanced Computational Technologies, Pretoria, South Africa.
Khune, Mervyn ; Akach, John ; Ochieng, Aoyi. / Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2. Paper presented at 2014 International Conference on Chemical Engineering & Advanced Computational Technologies, Pretoria, South Africa.4 p.
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title = "Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2",
abstract = "In this study, solar photocatalysis was employed to remove phenol from synthetic wastewater. Composite catalysts of different compositions were synthesized and applied for solar photocatalysis. The effect of the silica loading, composite loading, initial phenol concentration and initial solution pH on the photodegradation of phenol was investigated. It was found that a decrease in silica loading and initial concentration of phenol led to an increase in photodegradation. Increasing the composite loading and pH, on the other hand, led to an increase in photodegradation up to a limit. The best photodegradation was achieved at a catalyst composition of 60{\%} TiO2, composite loading of 5 g/L, phenol concentration of 15 ppm and solution pH of 4. At these conditions, there was a 100{\%} degradation of phenol within 5 hours.",
author = "Mervyn Khune and John Akach and Aoyi Ochieng",
year = "2014",
language = "English",
pages = "19--22",
note = "2014 International Conference on Chemical Engineering & Advanced Computational Technologies, ICCEACT’2014 ; Conference date: 24-11-2014 Through 25-11-2014",

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Khune, M, Akach, J & Ochieng, A 2014, 'Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2' Paper presented at 2014 International Conference on Chemical Engineering & Advanced Computational Technologies, Pretoria, South Africa, 11/24/14 - 11/25/14, pp. 19-22.

Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2. / Khune, Mervyn; Akach, John; Ochieng, Aoyi.

2014. 19-22 Paper presented at 2014 International Conference on Chemical Engineering & Advanced Computational Technologies, Pretoria, South Africa.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2

AU - Khune, Mervyn

AU - Akach, John

AU - Ochieng, Aoyi

PY - 2014

Y1 - 2014

N2 - In this study, solar photocatalysis was employed to remove phenol from synthetic wastewater. Composite catalysts of different compositions were synthesized and applied for solar photocatalysis. The effect of the silica loading, composite loading, initial phenol concentration and initial solution pH on the photodegradation of phenol was investigated. It was found that a decrease in silica loading and initial concentration of phenol led to an increase in photodegradation. Increasing the composite loading and pH, on the other hand, led to an increase in photodegradation up to a limit. The best photodegradation was achieved at a catalyst composition of 60% TiO2, composite loading of 5 g/L, phenol concentration of 15 ppm and solution pH of 4. At these conditions, there was a 100% degradation of phenol within 5 hours.

AB - In this study, solar photocatalysis was employed to remove phenol from synthetic wastewater. Composite catalysts of different compositions were synthesized and applied for solar photocatalysis. The effect of the silica loading, composite loading, initial phenol concentration and initial solution pH on the photodegradation of phenol was investigated. It was found that a decrease in silica loading and initial concentration of phenol led to an increase in photodegradation. Increasing the composite loading and pH, on the other hand, led to an increase in photodegradation up to a limit. The best photodegradation was achieved at a catalyst composition of 60% TiO2, composite loading of 5 g/L, phenol concentration of 15 ppm and solution pH of 4. At these conditions, there was a 100% degradation of phenol within 5 hours.

M3 - Paper

SP - 19

EP - 22

ER -

Khune M, Akach J, Ochieng A. Solar Photodegradation of Phenol using a Composite Catalyst of Silica and TiO2. 2014. Paper presented at 2014 International Conference on Chemical Engineering & Advanced Computational Technologies, Pretoria, South Africa.