نتایج جستجو برای: organic precursors

تعداد نتایج: 238888  

2014
Yu-Hsiang Wang Kuan-Chung Chen

The effects of synthetic goethite (α-FeOOH) used as the catalyst in catalytic ozonation for the degradation of disinfection by-product (DBP) precursors are investigated. A biofiltration column applied following the catalytic ozonation process is used to evaluate the efficiency of removing DBP precursors via biotreatment. Ozone can rapidly react with aromatic compounds and oxidize organic compou...

Journal: :Chemical Science 2023

Visible-light photoredox catalysis is well-established as a powerful and versatile organic synthesis strategy. However, some substrate classes, despite being attractive precursors, are recalcitrant to single-electron redox chemistry thus not...

2011
Henry B. Throop

The origin of complex organic molecules such as amino acids and their precursors found in meteorites and comets is unknown. Previous studies have accounted for the complex organic inventory of the Solar System by aqueous chemistry on warm meteoritic parent bodies, or by accretion of organics formed in the interstellar medium. This paper proposes a third possibility: that complex organics were c...

Journal: :Materials advances 2022

This work reports on low-temperature inorganic CsPbI 3 perovskite nanostructures synthesized as the active black phase, without additional use of organic ligands and based only CsI PbI 2 precursors.

Journal: :Angewandte Chemie 2006
Frank Hoffmann Maximilian Cornelius Jürgen Morell Michael Fröba

Mesoporous organic-inorganic hybrid materials, a new class of materials characterized by large specific surface areas and pore sizes between 2 and 15 nm, have been obtained through the coupling of inorganic and organic components by template synthesis. The incorporation of functionalities can be achieved in three ways: by subsequent attachment of organic components onto a pure silica matrix (gr...

Journal: :Journal of hazardous materials 2005
Bunyarit Panyapinyopol Taha F Marhaba Vorapot Kanokkantapong Prasert Pavasant

Resin adsorption techniques using three types of resin (DAX-8, AG-MP-50, and WA-10) were employed to characterize the raw water (RW) from the major 3 million m3/day (793 million gal/day) drinking water treatment plant in Bangkok, Thailand. The dissolved organic carbon (DOC) mass distribution sequences of the six organic fractions in raw water, from high to low, were hydrophilic neutral (HPIN), ...

Journal: :npj climate and atmospheric science 2022

Abstract Aerosols produced from the oxidation of volatile/semi-volatile organic compounds (VOCs/SVOCs), known as secondary aerosol (SOA), account for a significant fraction atmospheric airborne particles. This paper reviews current understanding SOA formation gas-phase with focus on anthropogenic precursors and their reaction products simulation chamber studies. The review summarises major deri...

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