Results 91 to 100 of about 7,991 (240)

Green and Effective Removal of Aqueous Graphene Oxide under UV-Light Irradiation

Nanomaterials, 2018
The potential extensive application of graphene oxide (GO) in various fields results in the possibility of its release into the natural environment with negative impacts on humans and the ecosystem.
Xiaoya Yuan, Dong Peng, Qiuye Jing, Jiawei Niu, Xin Cheng, Zijuan Feng, Xue Wu   +6 more
doaj   +1 more source

Facile Synthesis of g-C3N4 Nanosheets/ZnO Nanocomposites with Enhanced Photocatalytic Activity in Reduction of Aqueous Chromium(VI) under Visible Light

Nanomaterials, 2016
Graphitic-C3N4 nanosheets (CN)/ZnO photocatalysts (CN/ZnO) with different CN loadings were successfully prepared via a simple precipitation-calcination in the presence of exfoliated C3N4 nanosheets.
Xiaoya Yuan, Chao Zhou, Qiuye Jing, Qi Tang, Yuanhua Mu, An-ke Du   +5 more
doaj   +1 more source

Simultaneous Photocatalytic CO₂ Reduction and Methylene Blue Degradation over TiO₂@(Pt, Au, or Pd)

Photochem
In this work, the photocatalytic reduction of CO2 was innovatively tested with the simultaneous removal and mineralization of a textile contaminant, methylene blue (MB), which acts as a sacrificial agent.
Elisenda Pulido-Melián, Cristina Valeria Santana-Fleitas, Javier Araña, Óscar Manuel González-Díaz   +3 more
doaj   +1 more source

Significant CO2 photoreduction on a high-entropy oxynitride

, 2023
CO$_2$ photoreduction on photocatalysts is a nature-friendly solution to decrease the CO$_2$ amount, but the method still has low efficiency because of difficult separation and easy recombination of charge carriers in available catalysts.
Shundo, Yu, Akrami, Saeid, Ishihara, Tatsumi, Fuji, Masayoshi, Edalati, Kaveh, Watanabe, Motonori, Edalati, Parisa   +6 more
core   +1 more source

Mechanistic Diversity in Photoexcited Radical Redox Chemistry: A Critical Evaluation

Angewandte Chemie International Edition, EarlyView.
Many high‐profile examples of photoredox catalysis are proposed to proceed via excitation of an open‐shell intermediate form of the catalyst. However, there is much debate over whether such mechanisms are realistic and, if so, exactly how they can occur.
Samuel J. Horsewill, Ryan Phelps, Joshua P. Barham, Daniel J. Scott   +3 more
wiley   +1 more source

Effective ascorbate-free and photolatent click reactions in water using a photoreducible copper(II)-ethylenediamine precatalyst

Beilstein Journal of Organic Chemistry, 2015
The search for copper catalysts able to perform effectively click reactions in water in the absence of sodium ascorbate is an active area of current research with strong potential for applications in bioconjugation.
Redouane Beniazza, Natalia Bayo, Florian Molton, Carole Duboc, Stéphane Massip, Nathan McClenaghan, Dominique Lastécouères, Jean-Marc Vincent   +7 more
doaj   +1 more source

PHOTOREDUCTION OF URANYL NITRATE BY TARTARIC ACID

, 1942
Measurements of the optical rotation of mixtures of uranyl nitrate and tartaric acid show that a complex compound is formed in solution.
T. L. RAMA. CHAR
core   +1 more source

Enhanced Gas-Sensing Performance of GO/TiO2 Composite by Photocatalysis

Sensors, 2018
Few studies have investigated the gas-sensing properties of graphene oxide/titanium dioxide (GO/TiO2) composite combined with photocatalytic effect.
Eunji Lee, Doohee Lee, Jaesik Yoon, Yilin Yin, You Na Lee, Sunil Uprety, Young Soo Yoon, Dong-Joo Kim   +7 more
doaj   +1 more source

Photoreduction of Azoxybenzene to Azobenzene [PDF]

Bulletin of the Chemical Society of Japan, 1968
Abstract The photochemical reduction of azoxybenzene to azobenzene has been investigated. The direct irradiation of azoxybenzene leads to a rearrangement to 2-hydroxyazobenzene and to cis-trans isomerization, whereas the sensitized irradiation leads to a reduction to azobenzene in the presence of a sensitizer with a triplet excitation ...
openaire   +1 more source

Oxygen Photoreduction in Cyanobacteria [PDF]

, 2015
Cyanobacteria are well-known for their role in the global production of O2 via photosynthetic water oxidation. However, with the use of light energy, cyanobacteria can also reduce O2. In my thesis work, I have investigated the impact of O2 photoreduction
Ermakova, Maria
core