Results 11 to 20 of about 158,830 (405)

Extensive field evidence for the release of HONO from the photolysis of nitrate aerosols

Science Advances, 2023
Particulate nitrate (pNO3−) has long been considered a permanent sink for NOx (NO and NO2), removing a gaseous pollutant that is central to air quality and that influences the global self-cleansing capacity of the atmosphere.
Simone T. Andersen, L. Carpenter, C. Reed, James D. Lee, R. Chance, T. Sherwen, A. Vaughan, J. Stewart, Pete M. Edwards, W. Bloss, R. Sommariva, L. Crilley, G. Nott, L. Neves, K. Read, D. Heard, P. Seakins, L. Whalley, Graham A Boustead, Lauren T. Fleming, D. Stone, K. Fomba   +21 more
semanticscholar   +1 more source

Homogeneous and heterogeneous photolysis of nitrate in the atmosphere: state of the science, current research needs, and future prospects

Frontiers of Environmental Science and Engineering, 2022
Nitrate is an important component of atmospheric particulate matter and affects air quality, climate, human health, and the ecosystem. Nitrate was previously considered a permanent sink for nitrogen oxides (NOx).
Yiqun Cao, Qingxin Ma, Biwu Chu, Hong S. He   +3 more
semanticscholar   +1 more source

Particulate nitrate photolysis in the atmosphere

Environmental Science: Atmospheres, 2022
Multiphase and heterogeneous photochemistry is an emerging component of atmospheric and air pollution research. It is primarily driven by reactions of photochemically produced free radicals in the particle phase with...
Masao Gen, Zhancong Liang, Ruifeng Zhang, Beatrix Rosette Go Mabato, C. Chan   +4 more
semanticscholar   +1 more source

Laboratory Investigation of Renoxification from the Photolysis of Inorganic Particulate Nitrate.

Environmental Science and Technology, 2021
Nitrogen oxides (NOx) play a key role in regulating the oxidizing capacity of the atmosphere through controlling the abundance of O3, OH, and other important gas and particle species.
Q. Shi, Ye Tao, J. Krechmer, C. Heald, J. Murphy, J. Kroll, Q. Ye   +6 more
semanticscholar   +1 more source

Aerosol–photolysis interaction reduces particulate matter during wintertime haze events

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Aerosol–radiation interaction (ARI) not only constitutes one of the major uncertainties in climate prediction, but also significantly deteriorates particulate matter (PM) pollution during heavy haze events.
Jiarui Wu, N. Bei, B. Hu, Sui-xin Liu, Yuan Wang, Zhenxing Shen, Xia Li, Lang Liu, Ruonan Wang, Zirui Liu, Junji Cao, X. Tie, L. Molina, Guohui Li   +13 more
semanticscholar   +1 more source

Photocatalytic removal of the herbicide clopyralid from water [PDF]

Journal of the Serbian Chemical Society, 2007
The stability of the herbicide clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) was studied under different experimental conditions of pH, illumination and initial substrate concentration.
BILJANA F. ABRAMOVIC, VESNA B. ANDERLUH, DANIELA V. ŠOJIĆ, FERENC F. GAÁL   +3 more
doaj   +3 more sources

Interconversion and Removal of Inorganic Nitrogen Compounds via UV Irradiation

ChemEngineering, 2023
Dissolved inorganic nitrogen (DIN) species are key components of the nitrogen cycle and are the main nitrogen pollutants in groundwater. This study investigated the interconversion and removal of the principal DIN compounds (NO3−, NO2− and NH4+) via UV ...
Alejandro M. Senn, Natalia Quici
doaj   +1 more source

DEGRADASI ZAT WARNA SUDAN I SECARA SONOLISIS DAN FOTOLISIS DENGAN PENAMBAHAN TiO2-ANATASE

Jurnal Riset Kimia, 2015
Degradation of Sudan I dye had been done with sonolysis and photolysis by adding anatase-TiO2.  Sonolysis method were performed using an ultrasound with frequency  of 45 kHz.
Safni -, Umiati Loekman, Fitra Febrianti, Maizatisna -, Tadao Sakai   +4 more
doaj   +1 more source

Fotocatálisis con dióxido de titanio nanoparticulado como método alternativo para depurar agua de mar destinada a la acuicultura

AquaTechnica, 2022
RESUMEN | El agua utilizada en acuicultura debe presentar excelente calidad microbiológica, de manera que garantice el éxito de la producción. En esta industria se utilizan frecuentemente algunos métodos de tratamientos microbicidas tales como filtración,
José Felix Bernal, Miguel Guevara, Francisco Pérez , Edgar Alexander Zapata-Vìvenes   +3 more
doaj   +1 more source

Efficient formation pathway of methyl formate: the role of OH radicals on ice dust [PDF]

, 2021
Three structural isomers of the C2H4O2 molecule, namely, methyl formate (MF; HCOOCH3), acetic acid (AA; CH3COOH), and glycol aldehyde (GA; HOCH2CHO), have attracted considerable attention as targets for understanding pathways towards molecular complexity in the interstellar medium (ISM).
arxiv   +1 more source