Results 351 to 360 of about 739,097 (405)

Mechanism of persulfate activation by phenols.

Environmental Science and Technology, 2013
The activation of persulfate by phenols was investigated to further the understanding of persulfate chemistry for in situ chemical oxidation (ISCO). Phenol (pKa = 10.0) activated persulfate at pH 12 but not at pH 8, suggesting activation occurred only ...
Mushtaque Ahmad, A. Teel, R. Watts
semanticscholar   +1 more source

Bacterial Biodegradation of Phenolics and Derivatives of Phenolics

2020
It is known that the nature is widely contaminated by the aromatic compounds. Various industries, such as petroleum refineries, resin manufacturing, paper and pulp, fungicide, pesticides, chemical fertilizers, and leather, utilize water in various processes, such as steam generation for cooling, distillation processes, hydrotreating, and cleaning ...
Nikhil Bhatt, Pooja Hirpara
openaire   +2 more sources

Catalytic fast pyrolysis of biomass: the reactions of water and aromatic intermediates produces phenols

, 2015
During catalytic upgrading over HZSM-5 of vapors from fast pyrolysis of biomass (ex situ CFP), water reacts with aromatic intermediates to form phenols that are then desorbed from the catalyst micropores and produced as products. We observe this reaction
C. Mukarakate, Josefine D. McBrayer, Tabitha J. Evans, S. Budhi, D. Robichaud, K. Iisa, J. Dam, M. J. Watson, R. Baldwin, M. Nimlos   +9 more
semanticscholar   +1 more source

Secondary organic aerosol production from aqueous reactions of atmospheric phenols with an organic triplet excited state.

Environmental Science and Technology, 2014
Condensed-phase chemistry plays a significant role in the formation and evolution of atmospheric organic aerosols. Past studies of the aqueous photoformation of secondary organic aerosol (SOA) have largely focused on hydroxyl radical oxidation, but here ...
Jeremy D. Smith, V. Sio, Lu Yu, Qi Zhang, C. Anastasio   +4 more
semanticscholar   +1 more source

Berry (poly)phenols and cardiovascular health.

Journal of Agricultural and Food Chemistry, 2014
Berries are a rich source of (poly)phenols, including anthocyanins, flavan-3-ols, procyanidins, flavonols, ellagitannins, and hydroxycinnamates. Epidemiological evidence indicates that the cardiovascular health benefits of diets rich in berries are ...
A. Rodriguez-Mateos, C. Heiss, G. Borges, A. Crozier   +3 more
semanticscholar   +1 more source

Controlling the catalytic aerobic oxidation of phenols.

Journal of the American Chemical Society, 2014
The oxidation of phenols is the subject of extensive investigation, but there are few catalytic aerobic examples that are chemo- and regioselective. Here we describe conditions for the ortho-oxygenation or oxidative coupling of phenols under copper (Cu ...
K. Esguerra, Yacoub Fall, Laurène Petitjean, J. Lumb   +3 more
semanticscholar   +1 more source

Adsorption of phenol and substituted phenols by iron oxides

Environmental Toxicology and Chemistry, 1991
Abstract The ability of Fe oxides to adsorb phenol and various substituted phenols from dilute aqueous solution and from the vapor state was investigated, utilizing Fourier transform infrared (FTIR) spectroscopy to evaluate the type of surface complex formed.
King-Hsi Kung, Murray B. McBride
openaire   +2 more sources

Electropolymerization Treatment of Phenol Wastewater and the Reclamation of Phenol

Water Environment Research, 2012
Abstract 
Electrochemical treatment of phenol wastewater was carried out with stainless steel anodes, and phenol removal was achieved through the electropolymerization process. The effects of phenol concentration and bath voltage were discussed. The original chemical oxygen demand (COD) value was approximately 500 mg/L.
Jun He, Wen Zhang, Gang Wei, Xiaoyu Zhang, Liyin Bao   +4 more
openaire   +3 more sources

Continuous-flow synthesis of functionalized phenols by aerobic oxidation of Grignard reagents.

Angewandte Chemie, 2014
Phenols are important compounds in chemical industry. An economical and green approach to phenol preparation by the direct oxidation of aryl Grignard reagents using compressed air in continuous gas-liquid segmented flow systems is described.
Zhi He, T. Jamison
semanticscholar   +1 more source

A route for lignin and bio-oil conversion: dehydroxylation of phenols into arenes by catalytic tandem reactions.

Angewandte Chemie, 2013
Finding a workaround: The conversion of lignin into low-boiling-point arenes instead of high-boiling-point phenols could greatly facilitate conventional refinery processes.
Xingyu Wang, R. Rinaldi
semanticscholar   +1 more source