Influence of parameters on the heterogeneous photocatalytic degradation of pesticides and phenolic contaminants in wastewater: a short review.

By Saber A. S. Ahmed, M. Rasul, Richard J. Brown, M. A. Hashib. Journal of Environmental Management, 2011

840 citations recorded by the source corpus.

In recent years, the application of heterogeneous photocatalytic water purification processes has gained wide attention due to its effectiveness in degrading and mineralizing the recalcitrant organic compounds as well as the possibility of utilizing the solar UV and visible-light spectrum. This paper aims to review and summarize the recent works on the titanium dioxide (TiO(2)) photocatalytic oxidation of pesticides and phenolic compounds, predominant in storm and wastewater effluents. The effects of various operating parameters on the photocatalytic degradation of pesticides and phenols are discussed. Results reported here suggest that the photocatalytic degradation of organic compounds depends on the type and composition of the photocatalyst and, light intensity, initial substrate concentration, amount of catalyst, pH of the reaction medium, ionic components in water, solvent types, oxidizing agents/electron acceptors, catalyst application mode, and calcination temperature in the water environment. A substantial amount of research has focused on the enhancement of TiO(2) photocatalysis by modification with metal, non-metal and ion doping. Recent developments in TiO(2) photocatalysis for the degradation of various pesticides and phenols are also highlighted in this review. It is evident from the literature survey that photocatalysis has good potential to remove a variety of organic pollutants. However, there is still a need to determine the practical utility of this technique on a commercial scale.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/cb7cba693817aeae068f97c3212bd220fde2d234

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

1. M. Maaza
2. Angelo Basile
3. M. Zafar
4. Moshsin Ijaz
5. Cláudia G. Silva
6. J. Faria
7. Fausto Gallucci

In Renewable Energy, Sustainability and the Environment

1. Angelo Basile
2. M. Zafar
3. Moshsin Ijaz
4. J. Faria
5. Fausto Gallucci

Citations in the corpus

• Enhanced biocatalytic sustainability of laccase by immobilization on functionalized carbon nanotubes/polysulfone membranes (2019, background): “30-EN, was selected for the treatment of an aqueous mixture containing four phenolic compounds normally used as model molecules because they are often present in many different effluents: phenol (PH), resorcinol (RS), 4methoxyphenol (MP) and 4-chlorophenol (CP) [61,62].”
• Evaluation on La2O3 garlanded ceria heterostructured binary metal oxide nanoplates for UV/ visible light induced removal of organic dye from urban wastewater (2018, background): “Therefore, to the best of our knowledge, there has been no investigation on the photodegradation of organic synthetic dye effluent studies by using CeO2/La2O3 nanostructures with high performance (Ahmed, 2015).”
• Titanium dioxide nanostructures as efficient photocatalyst: Progress, challenges and perspective (2020, background): “Although, the competition of the separation and recombination of photogenerated electrons and holes leads to inefficient processes(195,200,202) and longer duration for perfect mineralization of phenol.(196,203) Several researchers have reported various promising applications of TiO2 as photocatalyst”