Results 61 to 70 of about 280,723 (196)

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

Carbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey, Rashid Al‐Hajri, Ala'a H. Al‐Muhtaseb, Hussein A. Younus, Mohammed Al‐Abri   +4 more
wiley   +1 more source

Azoimidazolium Salts as a Platform for Persistent Neutral Aminyl Radicals and Mesoionic Carbene Au(I) Complexes as Cell‐Permeable Fluorophores

Chemistry – A European Journal, EarlyView.
Strategic electronic matching between imidazolium salts and aryldiazonium salts enables a chromatography‐free route to versatile azoimidazolium scaffolds. Fine‐tuning the substituents unveils a powerful dichotomy: strong ─OMe resonance stabilizes highly persistent neutral aminyl radicals (up to 3 weeks), whereas the superior ─NMe2 donor strength yields
Diego Dusso, Osvaldo F. López‐Saladino, Ixsoyen F. Vázquez‐Sandoval, Arturo Jiménez‐Sánchez, Virginia Gómez‐Vidales, Marcos Flores‐Álamo, Susana Porcel‐García   +6 more
wiley   +1 more source

Decolorization of Disperse Dyes in Textile Polyester Recycling Using Activated Carbon

Chemie Ingenieur Technik, EarlyView.
Decolorization of disperse dyes from disodium terephthalate solutions is examined using two activated carbons with varying pore structures and surface properties. The potential impact of pore size distribution and surface charge on the adsorption process is assessed to support optimized adsorbent selection.
Charlotte Lücking, Mandy Paschetag, Stephan Scholl   +2 more
wiley   +1 more source

Green methodology to synthesis heterocyclic diazo dyes using superacid Aquivion® PFSA PW98 as an efficient catalyst

Current Research in Green and Sustainable Chemistry
A heterocyclic diazo dye containing the coumarin structure, specifically 7-hydroxy-4-methyl-8-(4-nitrophenyl azo)-6-(4-nitrophenyl azo) coumarin, was prepared using Aquivion PFSA resin.
Fadia Al-Haj Hussien
doaj   +1 more source

Decolorization of Ponceau Red 4R with TiO2/ZnO: Effect of calcination temperature and Fe addition

Environmental Progress &Sustainable Energy, EarlyView.
Abstract The photocatalytic degradation of azo dyes using semiconductor oxides has emerged as a promising strategy for wastewater remediation. In this study, pure, mixed, and Fe‐doped oxide catalysts based on Zinc Oxide and Titanium Dioxide were synthesized and evaluated for the degradation of Ponceau 4R under ultraviolet irradiation.
Stefani Castilhos, Fernado Manzotti de Souza, Giane Gonçalves Lenzi, Angelo Marcelo Tusset, Luiz Mario de M. Jorge, Onelia Aparecida Andreo dos Santos   +5 more
wiley   +1 more source

Spectral Studies of UV and Solar Photocatalytic Degradation of AZO Dye and Textile Dye Effluents Using Green Synthesized Silver Nanoparticles

Bioinorganic Chemistry and Applications, 2016
The photocatalytic degradation of the chemical dye AZO and dye effluents in different time duration has been investigated using biologically synthesized silver nanoparticles.
R. Mariselvam, A. J. A. Ranjitsingh, P. Mosae Selvakumar, Abdullah A. Alarfaj, Murugan A. Munusamy   +4 more
doaj   +1 more source

An Improved Method for Removal of Azo Dye Orange II from Textile Effluent Using Albumin as Sorbent

Molecules, 2012
Azo dyes are generally resistant to biodegradation due to their complex structures. Acid orange II is one of the most widely used dyes in the textile industry.
Tadashi Ohashi, Alícia M. T. Jara, Anabelle C. L. Batista, Luciana O. Franco, Marcos A. Barbosa Lima, Mohand Benachour, Carlos A. Alves da Silva, Galba M. Campos-Takaki   +7 more
doaj   +1 more source

Leveraging Isomerization of Azo Dyes and Imines for the Facile Synthesis of Oxadiazepines and Related Heterocycles

Journal of Heterocyclic Chemistry, EarlyView.
A robust method for synthesizing substituted oxadiazepines and related heterocycles via intramolecular SNAr is detailed. Under mild conditions, this methodology has been leveraged to afford products of varying electronic and aryl nature in up to 99% yields.
Matthew W. Reeves, Christian A. Guzman, Herbi Yuliantoro, Peng Li, Elizabeth R. Young   +4 more
wiley   +1 more source

Decolorization of Orange-G Aqueous Solutions over C₆₀/MCM-41 Photocatalysts

Applied Sciences, 2019
The majority of the photocatalysts studied for azo-dye degradation are based on semiconductor materials. Studies reported on non-semiconducting materials are very scarce.
John Kyriakopoulos, Eleana Kordouli, Kyriakos Bourikas, Christos Kordulis, Alexis Lycourghiotis   +4 more
doaj   +1 more source

Polypyrrole Nanofibrous Aerogel for Pressure Sensing and Anionic Contaminant Remediation

Small, EarlyView.
Nanofibrous aerogels (NFAs), highly porous ultralow‐density networks of entangled nanofibers, are conformally coated with polypyrrole (PPy) to provide a multifaceted material platform. Leveraging NFA's high surface area and mechanically robust structure with the conductive properties of PPy enables pressure‐responsive sensing for flexible electronics ...
Muhammed Ziauddin Ahmad Ebrahim, Ilaria Napoletano, Anicah Smith O'Brien, Tahira Pirzada, Saad A. Khan   +4 more
wiley   +1 more source