Journal ArticleDOI
Hydrogen Peroxide Synthesis: An Outlook beyond the Anthraquinone Process
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TLDR
The direct synthesis of H 2O2 from O2 and H2 using a variety of catalysts, and the factors influencing the formation and decomposition of H2O2 are examined in detail in this Review.Abstract:
Hydrogen peroxide (H2O2) is widely used in almost all industrial areas, particularly in the chemical industry and environmental protection. The only degradation product of its use is water, and thus it has played a large role in environmentally friendly methods in the chemical industry. Hydrogen peroxide is produced on an industrial scale by the anthraquinone oxidation (AO) process. However, this process can hardly be considered a green method. It involves the sequential hydrogenation and oxidation of an alkylanthraquinone precursor dissolved in a mixture of organic solvents followed by liquid–liquid extraction to recover H2O2. The AO process is a multistep method that requires significant energy input and generates waste, which has a negative effect on its sustainability and production costs. The transport, storage, and handling of bulk H2O2 involve hazards and escalating expenses. Thus, novel, cleaner methods for the production of H2O2 are being explored. The direct synthesis of H2O2 from O2 and H2 using a variety of catalysts, and the factors influencing the formation and decomposition of H2O2 are examined in detail in this Review.read more
Citations
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Visible‐light‐driven photocatalytic H2O2 production on g‐C3N4 loaded with CoP as a noble metal free cocatalyst
TL;DR: In this article, a composite catalyst combining CoP with g-C3N4 has been explored for the photocatalytic production of H2O2 under visible light irradiation.
Journal ArticleDOI
Effects of Hydrogen on the Reactivity of O2 toward Gold Nanoparticles and Surfaces
Laura Barrio,Ping Liu,José Antonio Lozano Rodríguez,Jose M. Campos-Martin,José Luis García Fierro +4 more
TL;DR: In this article, density functional theory was used to study the coadsorption of O2 and H2 or H on Au(111) and Au(100) and on free pyramidal clusters (Au25 and Au29) observed on titania-and ceria-based catalysts.
Journal ArticleDOI
Review on the hazardous applications and photodegradation mechanisms of chlorophenols over different photocatalysts
Amir Zada,Muhammad Khan,Muhammad Khan,Muhammad Asim Khan,Qasim Khan,Aziz Habibi-Yangjeh,Alei Dang,Muhammad Maqbool +7 more
TL;DR: In this paper, a comprehensive study of the applications of chlorophenols, their hazardous effects and photocatalytic degradation under light illumination is presented, where the effect of various factors such as pH and presence of different anions on the photocatalysis of chlorphenols have been elaborated comprehensively.
Journal ArticleDOI
Impact of plasma jet vacuum ultraviolet radiation on reactive oxygen species generation in bio-relevant liquids
Helena Jablonowski,René Bussiahn,Malte U. Hammer,K.-D. Weltmann,Th. von Woedtke,Stephan Reuter +5 more
TL;DR: In this paper, the authors used electron paramagnetic resonance spectroscopy (EMSEM) to detect moderate stable reactive oxygen species, such as superoxide anion (O2−) and hydroxyl radicals (•OH).
References
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Titanium dioxide as photocatalysis
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TL;DR: A review of the current progress in the area of TiO 2 photocatalysis, mainly photocatalytic air purification, sterilization and cancer therapy is discussed in this article.
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Titanium-containing mesoporous molecular sieves for catalytic oxidation of aromatic compounds
TL;DR: The use of the templating approach to synthesize mesoporous silica-based molecular sieves partly substituted with titanium—large-pore analogues of titanium silicalite find that these materials show selective catalytic activity towards the oxidation of 2,6-ditert-butyl phenol to the corresponding quinone and the conversion of benzene to phenol.