Photodegradation of ibuprofen by Pd-TiO2/ZSM-5 catalyst

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Environmental Science and Technology Pub Date : 2024-10-03 DOI:10.1007/s13762-024-06076-8

T. F. Ferens, L. J. Visioli, A. T. Paulino, H. Enzweiler

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Abstract

The use of medications has increased in recent decades and nonsteroidal anti-inflammatory drugs are among the best-selling products. Ibuprofen belongs to this class and has been identified as a pollutant in waterbodies. Photocatalytic reactions constitute a treatment option for degrading this pollutant in wastewater. Therefore, the aim of the present study was to assess the photodegradation of ibuprofen and its byproduct generated during the degradation process using the photocatalyst Pd-TiO₂/ZSM-5 under UVC irradiation with low power. The greatest degradation was achieved using an initial ibuprofen concentration of 10 ppm and catalyst dose of 0.17 g L⁻¹. Eighty percent degradation was reached after 300 min of reaction. During degradation, a byproduct with maximum light absorption at 260 nm was observed. The use of the heterogeneous photocatalyst was also effective at degrading this byproduct, with a 59.7% reduction of its final absorbance compared to the process without the catalyst.

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来源期刊

International Journal of Environmental Science and Technology 环境科学-环境科学

CiteScore

5.60

自引率

6.50%

发文量

806

审稿时长

10.8 months

期刊介绍： International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.