Results 31 to 40 of about 44,529 (307)

Mechanism, kinetics, and pathways of self-sensitized sunlight photodegradation of phenylarsonic compounds

open access: yes, 2016
Being highly water-soluble, phenylarsonic feed additives discharged in animal wastes can easily accumulate in surface water bodies. The photodegradation mechanism, kinetics, and pathways of p-arsanilic acid (p-ASA), 4-hydrophenylarsonic acid (4-HPAA ...
Xie, Xiande, Hu, Yuanan, Cheng, Hefa
core   +1 more source

Photochemical pathways of 8-oxo-2′-deoxyguanosine under photodegradation

open access: yesAIP Advances, 2022
The common product of an oxidatively damaged DNA, 8-oxo-2′-deoxyguanosine (8-oxo-dG), is known for photorepairing cyclobutane pyrimidine dimers. This study is to uncover the dynamics of 8-oxo-dG under photodegradation, which are poorly understood.
Terry Park   +4 more
doaj   +1 more source

Photodegradation of diphenylarsinic acid by UV-C light: Implication for its remediation

open access: yes, 2016
Diphenylarsinic acid (DPAA) is a major contaminant in environments polluted by chemical weapons and abandoned after World Wars I and II and poses high risks to biota but remediation methods for this contaminant are rare. Here, the photodegradtion of DPAA
Wang, AA   +7 more
core   +1 more source

The Impact of Seasonally Varying Dissolved Organic Matter in Natural Aquatic Environments on the Photodegradation of Pharmaceutical Pollutants

open access: yesToxics
Photochemical degradation is a major removal pathway for pharmaceutical pollutants in water, and dissolved organic matter (DOM) in water is an important factor affecting this process.
Yue Chen   +4 more
doaj   +1 more source

Mathematical Modeling and Mechanism of VUV Photodegradation of H2S in the Absence of O2

open access: yesInternational Journal of Photoenergy, 2018
The existence of H2S has limited the biogas energy promotion. The traditional photodegradation of H2S is usually conducted in the presence of O2, yet this is unsuitable for biogas desulfurization which should be avoided.
Jian-hui Xu   +5 more
doaj   +1 more source

Photodegradation of glyphosate in water and stimulation of by-products on algae growth

open access: yesEcotoxicology and Environmental Safety, 2023
Glyphosate is the most widely used herbicide in global agricultural cultivation. However, little is known about the environmental risks associated with its migration and transformation. We conducted light irradiation experiments to study the dynamics and
Jiaqi An   +6 more
doaj   +1 more source

Photodegradation of the azole fungicide climbazole by ultraviolet irradiation under different conditions: Kinetics, mechanism and toxicity evaluation

open access: yes, 2016
Climbazole (CZ) has been known to persist in various environmental media, and may cause potential risks to aquatic organisms. This study investigated the photodegradation of CZ by ultraviolet (UV, 254nm) under different conditions.
Jian-Liang Zhao   +15 more
core   +1 more source

Surface Modification, Characterization and Photocatlytic Performance of Nano-Sized Titania modified with Silver and Bentonite clay [PDF]

open access: yes, 2009
In many textile industries dyes are used as coloring agents. Advanced oxidation processes are used for degrading or removing color from dye baths. Catalysts play a key role in these industries for the treatment of water.
Jana, Asim K   +5 more
core   +1 more source

Comparative analysis of contributions of wet deposition and photodegradation to the removal of atmospheric BaP by MFDCCA

open access: yesScientific Reports, 2021
Benzo [a] pyrene (BaP) in the atmosphere possess great carcinogenic potential to human health, and the understanding of its scavenging mechanisms has attracted considerable attention.
Chunqiong Liu   +5 more
doaj   +1 more source

Photoinduced electron transfer and photodegradation of malonic acid at Au/TiO2 investigated by in situ ATR-IR spectroscopy

open access: yes, 2012
TiO2 coated Au nanoparticles were synthesized and characterized by TEM, XPS and XRD. It was found that the Au nanoparticles were coated with TiO2 thus forming a core-shell structure.
Buergi, Thomas, Hu, Xuefeng
core   +1 more source

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