Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions

Yanlin Zhang; Yufang Wan

doi:doi:10.11648/j.ajep.20140301.14

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Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions

Yanlin Zhang, Yufang Wan

Published in American Journal of Environmental Protection (Volume 3, Issue 1)

Received: 23 January 2014 Published: 20 February 2014

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Abstract

The increasing utilization of surfactants generates a great amount of wastes. Surfactants and their more toxic degradation by-products in the environment affect the biota greatly. In particular, the low biodegradation of nonionic surfactants requires efficient oxidation treatments. In addition, the extracted contaminants by high concentrations of non-ionic surfactants in soil remediation may be completely treated using advanced oxidation process and thus the degradation of non-ionic surfactants needs to be checked in this case. The photocatalytic degradation of Triton X-100, a non-ionic surfactant, in aqueous titania suspensions was investigated as a function of catalyst dosage, pH, addition of hydrogen peroxide, potassium persulfate, and Tert-butyl alcohol. For the treatment of 20 mg/L Triton X-100 solutions, the optimum catalyst dosage and pH were determined to be 1 g/L and 6, respectively. The degradation efficiency of Triton X-100 by potassium persulfate was higher than that by hydrogen peroxide when the same mol of oxidants were used. Tert-butyl alcohol can strongly inhibit the photocatalytic oxidation reactions of Triton X-100. The degradation rates as a function of initial surfactant concentrations were interpreted by using a Langmuir-Hinshelwood model. With 0.2 g/L titania or even an additional 0.1 g/L hydrogen peroxide to completely degrade 1 mg/L phenanthrene in a 2 g/L Triton X-100 solution within 30 min, in this case the degradation efficiency of Triton X-100 was less than 5%. This proved that the strategy that surfactants were used as solubilizing agents for the removal of contaminants from soils followed by heterogeneous photocatalytic degradation was feasible.Within 120 min, 2 g/L of Triton X-100 can be degraded up to 67% by the addition of both 1 g/L titania and 1 g/L hydrogen peroxide. Under the right conditions, Triton X-100 can be completely degraded.

Published in	American Journal of Environmental Protection (Volume 3, Issue 1)
DOI	10.11648/j.ajep.20140301.14
Page(s)	28-35
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Triton X-100, Photocatalytic Degradation, Titania, Kinetics

References

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APA Style

Yanlin Zhang, Yufang Wan. (2014). Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions. American Journal of Environmental Protection, 3(1), 28-35. https://doi.org/10.11648/j.ajep.20140301.14

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ACS Style

Yanlin Zhang; Yufang Wan. Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions. Am. J. Environ. Prot. 2014, 3(1), 28-35. doi: 10.11648/j.ajep.20140301.14

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AMA Style

Yanlin Zhang, Yufang Wan. Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions. Am J Environ Prot. 2014;3(1):28-35. doi: 10.11648/j.ajep.20140301.14

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@article{10.11648/j.ajep.20140301.14,
  author = {Yanlin Zhang and Yufang Wan},
  title = {Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions},
  journal = {American Journal of Environmental Protection},
  volume = {3},
  number = {1},
  pages = {28-35},
  doi = {10.11648/j.ajep.20140301.14},
  url = {https://doi.org/10.11648/j.ajep.20140301.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajep.20140301.14},
  abstract = {The increasing utilization of surfactants generates a great amount of wastes. Surfactants and their more toxic degradation by-products in the environment affect the biota greatly. In particular, the low biodegradation of nonionic surfactants requires efficient oxidation treatments. In addition, the extracted contaminants by high concentrations of non-ionic surfactants in soil remediation may be completely treated using advanced oxidation process and thus the degradation of non-ionic surfactants needs to be checked in this case. The photocatalytic degradation of Triton X-100, a non-ionic surfactant, in aqueous titania suspensions was investigated as a function of catalyst dosage, pH, addition of hydrogen peroxide, potassium persulfate, and Tert-butyl alcohol. For the treatment of 20 mg/L Triton X-100 solutions, the optimum catalyst dosage and pH were determined to be 1 g/L and 6, respectively. The degradation efficiency of Triton X-100 by potassium persulfate was higher than that by hydrogen peroxide when the same mol of oxidants were used. Tert-butyl alcohol can strongly inhibit the photocatalytic oxidation reactions of Triton X-100. The degradation rates as a function of initial surfactant concentrations were interpreted by using a Langmuir-Hinshelwood model. With 0.2 g/L titania or even an additional 0.1 g/L hydrogen peroxide to completely degrade 1 mg/L phenanthrene in a 2 g/L Triton X-100 solution within 30 min, in this case the degradation efficiency of Triton X-100 was less than 5%. This proved that the strategy that surfactants were used as solubilizing agents for the removal of contaminants from soils followed by heterogeneous photocatalytic degradation was feasible.Within 120 min, 2 g/L of Triton X-100 can be degraded up to 67% by the addition of both 1 g/L titania and 1 g/L hydrogen peroxide. Under the right conditions, Triton X-100 can be completely degraded.},
 year = {2014}
}

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TY  - JOUR
T1  - Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions
AU  - Yanlin Zhang
AU  - Yufang Wan
Y1  - 2014/02/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajep.20140301.14
DO  - 10.11648/j.ajep.20140301.14
T2  - American Journal of Environmental Protection
JF  - American Journal of Environmental Protection
JO  - American Journal of Environmental Protection
SP  - 28
EP  - 35
PB  - Science Publishing Group
SN  - 2328-5699
UR  - https://doi.org/10.11648/j.ajep.20140301.14
AB  - The increasing utilization of surfactants generates a great amount of wastes. Surfactants and their more toxic degradation by-products in the environment affect the biota greatly. In particular, the low biodegradation of nonionic surfactants requires efficient oxidation treatments. In addition, the extracted contaminants by high concentrations of non-ionic surfactants in soil remediation may be completely treated using advanced oxidation process and thus the degradation of non-ionic surfactants needs to be checked in this case. The photocatalytic degradation of Triton X-100, a non-ionic surfactant, in aqueous titania suspensions was investigated as a function of catalyst dosage, pH, addition of hydrogen peroxide, potassium persulfate, and Tert-butyl alcohol. For the treatment of 20 mg/L Triton X-100 solutions, the optimum catalyst dosage and pH were determined to be 1 g/L and 6, respectively. The degradation efficiency of Triton X-100 by potassium persulfate was higher than that by hydrogen peroxide when the same mol of oxidants were used. Tert-butyl alcohol can strongly inhibit the photocatalytic oxidation reactions of Triton X-100. The degradation rates as a function of initial surfactant concentrations were interpreted by using a Langmuir-Hinshelwood model. With 0.2 g/L titania or even an additional 0.1 g/L hydrogen peroxide to completely degrade 1 mg/L phenanthrene in a 2 g/L Triton X-100 solution within 30 min, in this case the degradation efficiency of Triton X-100 was less than 5%. This proved that the strategy that surfactants were used as solubilizing agents for the removal of contaminants from soils followed by heterogeneous photocatalytic degradation was feasible.Within 120 min, 2 g/L of Triton X-100 can be degraded up to 67% by the addition of both 1 g/L titania and 1 g/L hydrogen peroxide. Under the right conditions, Triton X-100 can be completely degraded.
VL  - 3
IS  - 1
ER  -

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Author Information

Yanlin Zhang

School of Chemistry and Environment, South China Normal University, Guangzhou, P.R.China
Yufang Wan

Library of South China Normal University, Guangzhou, P.R.China

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Yanlin Zhang, Yufang Wan. (2014). Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions. American Journal of Environmental Protection, 3(1), 28-35. https://doi.org/10.11648/j.ajep.20140301.14

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ACS Style

Yanlin Zhang; Yufang Wan. Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions. Am. J. Environ. Prot. 2014, 3(1), 28-35. doi: 10.11648/j.ajep.20140301.14

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AMA Style

Yanlin Zhang, Yufang Wan. Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions. Am J Environ Prot. 2014;3(1):28-35. doi: 10.11648/j.ajep.20140301.14

Copy | Download

@article{10.11648/j.ajep.20140301.14,
  author = {Yanlin Zhang and Yufang Wan},
  title = {Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions},
  journal = {American Journal of Environmental Protection},
  volume = {3},
  number = {1},
  pages = {28-35},
  doi = {10.11648/j.ajep.20140301.14},
  url = {https://doi.org/10.11648/j.ajep.20140301.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajep.20140301.14},
  abstract = {The increasing utilization of surfactants generates a great amount of wastes. Surfactants and their more toxic degradation by-products in the environment affect the biota greatly. In particular, the low biodegradation of nonionic surfactants requires efficient oxidation treatments. In addition, the extracted contaminants by high concentrations of non-ionic surfactants in soil remediation may be completely treated using advanced oxidation process and thus the degradation of non-ionic surfactants needs to be checked in this case. The photocatalytic degradation of Triton X-100, a non-ionic surfactant, in aqueous titania suspensions was investigated as a function of catalyst dosage, pH, addition of hydrogen peroxide, potassium persulfate, and Tert-butyl alcohol. For the treatment of 20 mg/L Triton X-100 solutions, the optimum catalyst dosage and pH were determined to be 1 g/L and 6, respectively. The degradation efficiency of Triton X-100 by potassium persulfate was higher than that by hydrogen peroxide when the same mol of oxidants were used. Tert-butyl alcohol can strongly inhibit the photocatalytic oxidation reactions of Triton X-100. The degradation rates as a function of initial surfactant concentrations were interpreted by using a Langmuir-Hinshelwood model. With 0.2 g/L titania or even an additional 0.1 g/L hydrogen peroxide to completely degrade 1 mg/L phenanthrene in a 2 g/L Triton X-100 solution within 30 min, in this case the degradation efficiency of Triton X-100 was less than 5%. This proved that the strategy that surfactants were used as solubilizing agents for the removal of contaminants from soils followed by heterogeneous photocatalytic degradation was feasible.Within 120 min, 2 g/L of Triton X-100 can be degraded up to 67% by the addition of both 1 g/L titania and 1 g/L hydrogen peroxide. Under the right conditions, Triton X-100 can be completely degraded.},
 year = {2014}
}

Copy | Download

TY  - JOUR
T1  - Heterogeneous Photocatalytic Degradation of Triton X-100 in Aqueous TiO2 Suspensions
AU  - Yanlin Zhang
AU  - Yufang Wan
Y1  - 2014/02/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajep.20140301.14
DO  - 10.11648/j.ajep.20140301.14
T2  - American Journal of Environmental Protection
JF  - American Journal of Environmental Protection
JO  - American Journal of Environmental Protection
SP  - 28
EP  - 35
PB  - Science Publishing Group
SN  - 2328-5699
UR  - https://doi.org/10.11648/j.ajep.20140301.14
AB  - The increasing utilization of surfactants generates a great amount of wastes. Surfactants and their more toxic degradation by-products in the environment affect the biota greatly. In particular, the low biodegradation of nonionic surfactants requires efficient oxidation treatments. In addition, the extracted contaminants by high concentrations of non-ionic surfactants in soil remediation may be completely treated using advanced oxidation process and thus the degradation of non-ionic surfactants needs to be checked in this case. The photocatalytic degradation of Triton X-100, a non-ionic surfactant, in aqueous titania suspensions was investigated as a function of catalyst dosage, pH, addition of hydrogen peroxide, potassium persulfate, and Tert-butyl alcohol. For the treatment of 20 mg/L Triton X-100 solutions, the optimum catalyst dosage and pH were determined to be 1 g/L and 6, respectively. The degradation efficiency of Triton X-100 by potassium persulfate was higher than that by hydrogen peroxide when the same mol of oxidants were used. Tert-butyl alcohol can strongly inhibit the photocatalytic oxidation reactions of Triton X-100. The degradation rates as a function of initial surfactant concentrations were interpreted by using a Langmuir-Hinshelwood model. With 0.2 g/L titania or even an additional 0.1 g/L hydrogen peroxide to completely degrade 1 mg/L phenanthrene in a 2 g/L Triton X-100 solution within 30 min, in this case the degradation efficiency of Triton X-100 was less than 5%. This proved that the strategy that surfactants were used as solubilizing agents for the removal of contaminants from soils followed by heterogeneous photocatalytic degradation was feasible.Within 120 min, 2 g/L of Triton X-100 can be degraded up to 67% by the addition of both 1 g/L titania and 1 g/L hydrogen peroxide. Under the right conditions, Triton X-100 can be completely degraded.
VL  - 3
IS  - 1
ER  -

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