A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Ibuprofen degradation using a Co-doped carbon matrix derived from peat as a peroxymonosulphate activator (2021)

Ren, Z., Romar, H., Varila, T., Xu, X., Wang, Z., Sillanpää, M., & Leiviskä, T. (2021). Ibuprofen degradation using a Co-doped carbon matrix derived from peat as a peroxymonosulphate activator. Environmental Research, 193, Article 110564. https://doi.org/10.1016/j.envres.2020.110564

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Ren, Zhongfei; Romar, Henrik; Varila, Toni; Xu, Xing; Wang, Zhao; Sillanpää, Mika; Leiviskä, Tiina

Lehti tai sarja: Environmental Research

ISSN: 0013-9351

eISSN: 1096-0953

Julkaisuvuosi: 2021

Volyymi: 193

Artikkelinumero: 110564

Kustantaja: Elsevier

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1016/j.envres.2020.110564

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/73134

Tiivistelmä

The wider presence of pharmaceuticals and personal care products in nature is a major cause for concern in society. Among pharmaceuticals, the anti-inflammatory drug ibuprofen has commonly been found in aquatic and soil environments. We produced a Co-doped carbon matrix (Co-P 850) through the carbonization of Co2+ saturated peat and used it as a peroxymonosulphate activator to aid ibuprofen degradation. The properties of Co-P 850 were analysed using field emission scanning electron microscopy, energy filtered transmission electron microscopy and X-ray photoelectron spectroscopy. The characterization results showed that Co/Fe oxides were generated and tightly embedded into the carbon matrix after carbonization. The degradation results indicated that high temperature and slightly acidic to neutral conditions (pH = 5 to 7.5) promoted ibuprofen degradation efficiency in the Co-P 850/peroxymonosulphate system. Analysis showed that approx. 52% and 75% of the dissolved organic carbon was removed after two hours and five hours of reaction time, respectively. Furthermore, the existence of chloride and bicarbonate had adverse effects on the degradation of ibuprofen. Quenching experiments and electron paramagnetic resonance analysis confirmed that SO4·-, ·OH and O2·- radicals together contributed to the high ibuprofen degradation efficiency. In addition, we identified 13 degradation intermediate compounds and an ibuprofen degradation pathway by mass spectrometry analysis and quantum computing. Based on the results and methods presented in this study, we propose a novel way for the synthesis of a Co-doped catalyst from spent NaOH-treated peat and the efficient catalytic degradation of ibuprofen from contaminated water.

YSO-asiasanat: jäteveden käsittely; vedenpuhdistus; lääkeaineet; ibuprofeeni; hajotus; hapetus; katalyytit; oksidit; aktiivihiili; turve

Vapaat asiasanat: advanced oxidation process; carbon-based catalyst; cobalt oxides; ibuprofen; pharmaceuticals and personal care products

Liittyvät organisaatiot

OKM-raportointi: Kyllä

Raportointivuosi: 2021

JUFO-taso: 2