Results 31 to 40 of about 7,991 (240)

Carbon dioxide photoreduction in prebiotic environments

open access: yes, 2022
The reduction of carbon dioxide is one of the hottest topics due to the concern of global warming. Carbon dioxide reduction is also an essential step for life's origins as photoautotrophs arose soon after Earth formation.
Vadivel, Dhanalakshmi   +3 more
core   +1 more source

Photoreduction of Cr(VI) Catalyzed by TiO2-Lignin [PDF]

open access: yes, 2017
In order to increase  the  activity of TiO2 photocatalyst, preparation and characterization of TiO2-lignin and its activity on Cr(VI) photoreduction have been carried out.
Wahyuni, Endang Tri   +2 more
core   +1 more source

Defective materials for CO₂ photoreduction: from C₁ to C₂₊ products

open access: yes, 2023
Photocatalytic CO2 conversion to carbon-based products has been proven as a versatile method to manage carbon balance. Engineering defects into photocatalysts is an effective strategy to maneuver their performance for CO2 reduction.
Zhou, Jiadong   +5 more
core   +1 more source

Visible Light Antibacterial Activity of TiO2-Ag Prepared from Radiophotography Wastewater [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2021
This paper deals with the study on the antibacterial activity of TiO2-doped Ag prepared from radiophotography wastewater. The antibacterial agent was prepared by reduction of Ag(I) in the radiophotography wastewater over TiO2 photocatalyst under UV light
Novianti Lestari   +2 more
doaj   +1 more source

Photodecarboxylative additions to phthalimides and their application in the synthesis of AKS-186 and its analogues [PDF]

open access: yes, 2008
Photochemical methods have been widely neglected by industry for the search of novel pharmaceutical lead compounds. The photodecarboxylative addition of various carboxylates to phthalimides has been developed in our group as a powerful access to hydroxyl-
Hatoum, Fadi
core   +2 more sources

The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst

open access: yesNanomaterials, 2023
Carbon dioxide (CO2) photoreduction to high-value products is a technique for dealing with CO2 emissions. The method involves the molecular transformation of CO2 to hydrocarbon and alcohol-type chemicals, such as methane and methanol, relying on a ...
Apisit Karawek   +10 more
doaj   +1 more source

Effect of Photoreduction of Semiconducting Iron Mineral—Goethite on Microbial Community in the Marine Euphotic Zone

open access: yesFrontiers in Microbiology, 2022
Marine euphotic zone is the pivotal region for interplay of light-mineral–microorganism and elements cycle, in which semiconducting minerals exist widely and iron-bearing goethite is a typical and widespread one.
Jia Liu   +8 more
doaj   +1 more source

Synthesis of Metal/SU-8 Nanocomposites through Photoreduction on SU-8 Substrates

open access: yesNanomaterials, 2023
The paper presents a simple, fast, and cost-effective method for creating metal/SU-8 nanocomposites by applying a metal precursor drop onto the surface or nanostructure of SU-8 and exposing it to UV light. No pre-mixing of the metal precursor with the SU-
Yan-Jun Huang   +3 more
doaj   +1 more source

Steel slag as low-cost catalyst for artificial photosynthesis to convert CO2 and water into hydrogen and methanol

open access: yesScientific Reports, 2022
Photoreduction of CO2 with sunlight to produce solar fuels, also named artificial photosynthesis, is considered one of the most attractive strategies to face the challenge of reducing greenhouse gases and achieving climate neutrality.
Caterina Fusco   +8 more
doaj   +1 more source

Photochemical Redox Cycling of Naphthoquinones Mediated by Methylene Blue and Pheophorbide A

open access: yesMolecules
The photoreduction of plastoquinone, a para-benzoquinone, by chlorophyll initiates photosynthesis in chloroplasts. The direct photoreduction of biologically relevant quinones by dietary chlorophyll metabolites has been reported and may influence health ...
Lisa M. Landino, Joseph A. Reed
doaj   +1 more source

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