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Challenges of TiO2 heterogeneous photocatalysis on cytostatic compounds degradation: state of the art

  • Occurrence, Impact and Elimination of Contaminants of Emerging Concern (CECs) in Soil, Water and Air Streams: Advances and Challenges in Ibero-American Countries
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Abstract

The following work provides a perspective on the degradation of cytostatic pollutants through TiO2 heterogeneous photocatalysis. Cytostatic drugs are emerging pollutants used for cancer treatment found in hospital and domestic wastewater. Small amounts of cytostatic pollutants may pose severe health problems in human beings, animals, and plants after prolonged contact. This research presents a general review of some water treatment methods, such as aerobic activated sludge, enzymatic degradation, nanofiltration and chlorination, that have been used for the degradation or elimination of cytostatic drugs in wastewater. In recent years, photocatalysis has become important to solve this problem; these advanced oxidation process uses pure and modified TiO2 to degrade cytostatic contaminants and convert them into non-harmful substances or to eliminate them completely. This work contains a comprehensive review of the heterogeneous photocatalysis process and mechanism, and its application on the removal of cytostatic pollutants. Even if research on the topic is still scarce, this literature review provides interesting highlights on the scope of the research field, and the path such research could follow.

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Acknowledgements

A sincere gratitude is extended to the Consejo Nacional de Ciencia y Tecnología (CONACyT) for the scholarship provided for the first author’s PhD program in Sciences in Biotechnology, as well as to the Instituto Politécnico Nacional for the support, through Project SIP: 20210507.

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Luis A. González-Burciaga performed the literature search, data analysis, and drafted the article. Cynthia M. Núñez-Núñez analyzed the work critically and checked the spelling and grammar of the English language and José B. Proal-Nájera had the idea, proposed the structure of the article, and analyzed the work critically. All authors have read and approved the final manuscript.

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Correspondence to José B. Proal-Nájera.

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González-Burciaga, L.A., Núñez-Núñez, C.M. & Proal-Nájera, J.B. Challenges of TiO2 heterogeneous photocatalysis on cytostatic compounds degradation: state of the art. Environ Sci Pollut Res 29, 42251–42274 (2022). https://doi.org/10.1007/s11356-021-17241-8

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  • DOI: https://doi.org/10.1007/s11356-021-17241-8

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