The photochemical behaviors of microplastics through the lens of reactive oxygen species: Photolysis mechanisms and enhancing photo-transformation of pollutants

The Science of The Total Environment, Год журнала: 2022, Номер 846, С. 157498 - 157498

Опубликована: Июль 21, 2022

Язык: Английский

---

Contamination distribution and non-biological removal pathways of typical tetracycline antibiotics in the environment: A review

Journal of Hazardous Materials, Год журнала: 2023, Номер 463, С. 132862 - 132862

Опубликована: Окт. 27, 2023

Язык: Английский

---

Characteristics and behaviors of microplastics undergoing photoaging and Advanced Oxidation Processes (AOPs) initiated aging

Water Research, Год журнала: 2023, Номер 232, С. 119628 - 119628

Опубликована: Янв. 16, 2023

Язык: Английский

---

Photo-oxidation of Micro- and Nanoplastics: Physical, Chemical, and Biological Effects in Environments

Environmental Science & Technology, Год журнала: 2024, Номер 58(2), С. 991 - 1009

Опубликована: Янв. 3, 2024

Micro- and nanoplastics (MNPs) are attracting increasing attention due to their persistence potential ecological risks. This review critically summarizes the effects of photo-oxidation on physical, chemical, biological behaviors MNPs in aquatic terrestrial environments. The core this paper explores how photo-oxidation-induced surface property changes affect adsorption toward contaminants, stability mobility water porous media, as well transport pollutants such organic (OPs) heavy metals (HMs). It then reviews photochemical processes with coexisting constituents, highlighting critical factors affecting MNPs, contribution phototransformation other contaminants. distinct mechanism aged pointed out, terms toxicity organisms, biofilm formation, planktonic microbial growth, soil sediment community function. Furthermore, research gaps perspectives put forward, regarding underlying interaction mechanisms natural constituents under conditions, combined fate microbiological effect photoaged especially biotransformation pollutants.

Язык: Английский

---

Changes in electron distribution of aged microplastic and their environmental impacts in aquatic environments

Environmental Geochemistry and Health, Год журнала: 2025, Номер 47(4)

Опубликована: Март 20, 2025

Язык: Английский

---

Photon-induced redox chemistry on pyrite promotes photoaging of polystyrene microplastics

The Science of The Total Environment, Год журнала: 2022, Номер 829, С. 154441 - 154441

Опубликована: Март 11, 2022

Язык: Английский

---

Aging Process of Microplastics in the Aquatic Environments: Aging Pathway, Characteristic Change, Compound Effect, and Environmentally Persistent Free Radicals Formation

Water, Год журнала: 2022, Номер 14(21), С. 3515 - 3515

Опубликована: Ноя. 2, 2022

Plastic wastes are becoming one of the most serious environmental pollutants because their high antidegradation properties and damage they cause to human health. More seriously, plastics can become smaller in size form microplastics (MPs), attributing oxidation, weathering, fragmentation processes. The influx MPs into water bodies seriously affects quality aquatic environment. Therefore, it is necessary summarize aging process MPs. In this review, we first provided an overview definition source Then analyzed potential pathways current environment elaborated on changes physicochemical during (e.g., particle size, crystallinity, thermodynamic properties, surface functional groups). addition, possible synergistic contamination with other illustrated. Finally, mechanisms generation toxicity persistent free radicals (EPFRs) that may be generated photoaging were described, feasibility using photoaged as photosensitizers catalyze photoreactive degradation organic proposed. Overall, review provides a comprehensive objective evaluation behavior

Язык: Английский

---

Biofilm-Colonized versus Virgin Black Microplastics to Accelerate the Photodegradation of Tetracycline in Aquatic Environments: Analysis of Underneath Mechanisms

Environmental Science & Technology, Год журнала: 2023, Номер 57(14), С. 5714 - 5725

Опубликована: Март 30, 2023

Tire wear particles (TWPs) exposed to the aquatic environment are rapidly colonized by microorganisms and provide unique substrates for biofilm formation, which potentially serve as vectors tetracycline (TC) influence their behaviors potential risks. To date, photodegradation capacity of TWPs on contaminants due formation has not been quantified. accomplish this, we examined ability virgin (V-TWPs) biofilm-developed (Bio-TWPs) photodegrade TC when simulated sunlight irradiation. V-TWPs Bio-TWPs accelerated TC, with rates (kobs) 0.0232 ± 0.0014 0.0152 0.0010 h–1, respectively (kobs increased 2.5–3.7 times compared that only solution). An important factor behavior was identified linked changed reactive oxygen species (ROS) different TWPs. The were light 48 h, resulting in more ROS attacking hydroxyl radicals (•OH) superoxide anions (O2•–) playing a dominant role measured using scavenger/probe chemicals. This primarily greater photosensitization effects higher electron-transfer comparison Bio-TWPs. In addition, this study first sheds effect intrinsic mechanism crucial photodegradation, enhancing our holistic understanding environmental associated contaminants.

Язык: Английский

---

Dissolved organic matter derived from biodegradable microplastic promotes photo-aging of coexisting microplastics and alters microbial metabolism

Journal of Hazardous Materials, Год журнала: 2022, Номер 445, С. 130564 - 130564

Опубликована: Дек. 7, 2022

Язык: Английский

---

Fate and environmental behaviors of microplastics through the lens of free radical

Journal of Hazardous Materials, Год журнала: 2023, Номер 453, С. 131401 - 131401

Опубликована: Апрель 13, 2023

Язык: Английский

---