Photocatalysis

Entity type image
Type: Keyphrase
Name: Photocatalysis
First reported 20 hours ago - Updated 20 hours ago - 1 reports

New Technology Reduces Spoiling Rate of Produce

Posted in News, Science & Research, Fruits / Vegetables, Healthy Foods, Technology, Nutrition, Diet, QualityWASHINGTON—Researchers discovered a new method to preserve fruits and vegetables by removing the invisible gas that causes spoilage, according ... [Published Food Product Design - 20 hours ago]
First reported May 20 2013 - Updated May 20 2013 - 1 reports

Too much of a good thing: controlling ethylene

You can have too much of a good thing. Ethylene, a gas that is released by fruits, vegetables and flowers, fosters ripening and blooming. The problem is that ethylene continues to be produced after harvest and, when released into storage and shipping ... [Published FoodProcessing - May 20 2013]
First reported May 17 2013 - Updated May 17 2013 - 1 reports

Photo-degradation of butyl parahydroxybenzoate by using TiO2-supported...

The present work evaluates the potential of the photocatalysis (PC) process for the degradation of butylparaben (BPB). Relatively high treatment efficiency was achieved by comparison to photochemical process. Prior to photocatalytic degradation, adsorption ... [Published Environmental Expert - May 17 2013]
First reported May 17 2013 - Updated May 17 2013 - 1 reports

Hexagonal microrods of anatase tetragonal TiO2: Self-directed growth and superior photocatalytic performance

The microstructure of TiO2 mesocrystals plays an highly important role in their surface, structure and catalytic properties as well as application potentials. Here, we report the self-directed preparation of TiO2 mesocrystalline microrods with unique ... [Published RSC - May 17 2013]
First reported May 17 2013 - Updated May 17 2013 - 1 reports

Hierarchical nanostructure of WO3 nanorods on TiO2 nanofibers and the enhanced visible light photocatalytic activity for degradation of organic pollutants

Hierarchically nanostructured TiO2/WO3 photocatalyst was synthesized via the subsequent hydrothermal treatment of electrospun TiO2 nanofibers in the presence of tungstic acid. With a uniform WO3 seed layer providing growth sites, the nucleation on the ... [Published RSC - May 17 2013]
First reported May 17 2013 - Updated May 17 2013 - 1 reports

Fabrication, characterization and mechanism of a novel Z-scheme photocatalyst NaNbO3/WO3 with enhanced photocatalytic activity

Development of semiconductor photocatalysts with simultaneous high photooxidation and photoreduction performance is always a hot topic in the photocatalytic field. In this article, highly active Z-scheme NaNbO3/WO3 photocatalyst was prepared by a facile ... [Published RSC - May 17 2013]
First reported May 17 2013 - Updated May 17 2013 - 1 reports

A Facile and Green Synthesis Route toward Two-dimensional TiO2@Ag Heterojunction Structure with Enhanced Visible Light Photocatalytic Activity

A facile and green route for the two-dimensional (2D) TiO2@Ag heterojunction structure had been developed for improving the visible light photocatalytic activity. The edible corn crispy was selected as the biomass template to fabricate 2D-TiO2@Ag heterojunction ... [Published RSC - May 17 2013]
First reported May 17 2013 - Updated May 17 2013 - 1 reports

Remarkably Enhanced Photocatalytic Activity of Laser Ablated Au Nanoparticles Decorated BiFeO3 Nanowires under Visible-light

Chem. Commun. , 2013, Accepted ManuscriptDOI : 10.1039/C3CC40363G, Communication Shun Li, Jianming Zhang, Kibria Md. Golam, Z. Mi, Mohamed Chaker, Dongling Ma, Riad Nechache, Federico RoseiHybrid photocatalysts consisting of single crystalline BiFeO3 ... [Published RSC - May 17 2013]
First reported May 16 2013 - Updated May 16 2013 - 1 reports

Visible-Light Photochemical Activity of Heterostructured Core–Shell Materials Composed of Selected Ternary Titanates and Ferrites Coated by TiO2

Heterostructured photocatalysts comprised of microcrystalline (mc-) cores and nanostructured (ns-) shells were prepared by the sol–gel method. The ability of titania-coated ATiO3 (A = Fe, Pb) and AFeO3 (A = Bi, La, Y) catalysts to degrade methylene blue ... [Published ACS Applied Materials & Interfaces - May 16 2013]
First reported May 16 2013 - Updated May 16 2013 - 1 reports

Photostable Self-Cleaning Cotton by a Copper(II) Porphyrin/TiO2 Visible-Light Photocatalytic System

ACS Applied Materials & Interfaces DOI: 10.1021/am4 ... [Published ACS Applied Materials & Interfaces - May 16 2013]
First reported May 16 2013 - Updated May 16 2013 - 1 reports

Poly-(3-thiopheneacetic acid) coated Fe3O4@LDHs magnetic nanospheres as photocatalyst for efficient photocatalytic disinfection of pathogenic bacteria under solar light irradiation

New J. Chem. , 2013, Accepted ManuscriptDOI : 10.1039/C3NJ00148B, Paper Kun Shang, Bing Sun, Jianchao Sun, Jun Li, Shiyun AiNovel poly-(3-thiopheneacetic acid) coated Fe3O4@LDHs photocatalyst was prepared and used for photocatalytic disinfection of bacterial ... [Published RSC - May 16 2013]
First reported May 15 2013 - Updated May 15 2013 - 1 reports

Keeping Produce Fresh Longer

Billions of dollars of fruits, vegetables, and flowers are thrown away each year as produce ripens too quickly and starts to rot in different markets before public buyers even buy them. Even though you might expect these products to start rotting to their ... [Published Environmental News Network - May 15 2013]

Quotes

"Worldwide food technology could take advantage of photocatalysis technology for providing health and economical benefits and for globally contributing to both increased food quality and availability by reducing postharvest losses of fresh produce" the authors concluded
New Technology Reduces Spoiling Rate of Produce [Published Food Product Design - 20 hours ago]
"Thus, through this multidisciplinary review, we hope to be successful in illustrating photocatalysis as a really promising technology, within a sustainable development approach, for replacing current ethylene removal technologies during the storage and the transfer of fresh fruits and vegetables" they say
Keeping Produce Fresh Longer [Published Environmental News Network - May 15 2013]
The synthesis of the two penta-pyridyl type ligands pyridine-2,6-diylbis(dipyridin-2-ylmethanol) (PPy, 1) and bis-2,2′ "-bipyridine-6-yl(pyridine-2-yl)methanol (aPPy, 2) is described. Both ligands coordinate rapidly to the 3d element cations MnII, FeII, CoII, NiII, CuII, and ZnII, thereby yielding complexes of the general composition [MBr(1)]+ and [MBr(2)]+, respectively. Further, the X-ray structures of selected complexes with ligands 1 and 2 are described. They show metal center dependent structural features and complexes with 2 exhibiting distinctly distorted octahedral geometries. Moreover, photocatalytic water reduction with [CoIIBr(PPy)]Br (1c) and [CoIIBr(aPPy)]Br (2c) as water reducing catalysts (WRC) was investigated. Both complexes showed catalytic activity in water when in presence of ascorbic acid as sacrificial electron donor and [Re(py)(bpy)(CO)3]+ (3) as photosensitizer (PS). Turnover numbers, TONs (H2/Co), up to 11 000 were achieved. Complex 2c was more active than 1c, whereas none of the other complexes showed any activity."
3d Element Complexes of Pentadentate Bipyridine-Pyridine-Based Ligand Scaffolds: Structures and ... [Published Inorganic Chemistry - May 03 2013]
...These radicals then react with the pollutants and cause them to break down into non-harmful chemical, he informs. "However, some pollutants may still become attached without being broken down. In this case, the pollutants will be washed off during subsequent laundering, as it already happens with normal clothing, he continues.Explaining further, he says, Catalytic clothing is a beautiful manifestation of a deeply technical process... We will engage the public in formulating its nature and application allowing us to develop something that is both user-friendly and technically excellent.Exposure to air borne pollutants presents a risk to human health and also has a detrimental effect on ecosystems and vegetation. Air pollution is currently estimated to reduce the life expectancy of every person in the UK by an average of 7-8 months. The widespread introduction of catalytic clothing would dramatically reduce the level of air borne pollutants, thereby improving the quality of life for all members of society, he concludes. Fibre2fashion News Desk - India"
Clothing may provide solution to urban air pollution [Published Fibre 2 Fashion - Apr 30 2013]

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European Coatings SHOW 2013: top themes in the ... [Published Nestor - 18 hours ago]
New Technology Reduces Spoiling Rate of Produce [Published Food Product Design - 20 hours ago]
Too much of a good thing: controlling ethylene [Published FoodProcessing - May 20 2013]
Photo-degradation of butyl parahydroxybenzoate ... [Published Environmental Expert - May 17 2013]
One-Dimensional Porphyrin Nanoassemblies Assist... [Published ACS Applied Materials & Interfaces - May 17 2013]
Hexagonal microrods of anatase tetragonal TiO2:... [Published RSC - May 17 2013]
Hierarchical nanostructure of WO3 nanorods on T... [Published RSC - May 17 2013]
Fabrication, characterization and mechanism of ... [Published RSC - May 17 2013]
A Facile and Green Synthesis Route toward Two-d... [Published RSC - May 17 2013]
Remarkably Enhanced Photocatalytic Activity of ... [Published RSC - May 17 2013]
Visible-Light Photochemical Activity of Heteros... [Published ACS Applied Materials & Interfaces - May 16 2013]
Silicon/CNT substrate from NASA JPL improves ph... [Published OptoIQ - May 16 2013]
Novel Soft-Chemistry Route of Ag2Mo3O10·2H2O N... [Published Inorganic Chemistry - May 16 2013]
Photostable Self-Cleaning Cotton by a Copper(II... [Published ACS Applied Materials & Interfaces - May 16 2013]
Poly-(3-thiopheneacetic acid) coated Fe3O4@LDHs... [Published RSC - May 16 2013]
Keeping Produce Fresh Longer [Published Environmental News Network - May 15 2013]
A novel floating photocatalyst device based on ... [Published RSC - May 14 2013]
Flux Growth of Single-Crystal Na2Ta4O11 Particl... [Published Crystal Growth & Design - May 13 2013]
Nanoparticle Heterojunctions in ZnS/ZnO Hybrid ... [Published RSC - May 13 2013]
Photocatalysis on Supported gold and silver nan... [Published RSC - May 10 2013]
A novel Ag3AsO4 visible-light-responsive photoc... [Published RSC - May 10 2013]
OSIsoft Presents the 2013 Engineering Innovatio... [Published Marketwire - Breaking News Releases - May 09 2013]
Determining the Morphology and Photocatalytic ... [Published Chemistry of Materials - May 07 2013]
HX-splitting photocatalysis for solar fuels [Published Chemie.DE - May 07 2013]
Photon-Driven Reduction of Zn2+ to Zn Metal [Published Inorganic Chemistry - May 06 2013]
3d Element Complexes of Pentadentate Bipyridin... [Published Inorganic Chemistry - May 03 2013]
Effect of Photogenerated Charge Transfer on the... [Published ACS Applied Materials & Interfaces - May 02 2013]
Cu-In-Zn-S Nanoporous Spheres for Highly Effici... [Published RSC - May 02 2013]
Synthesis and Facet-Dependent Photocatalytic Ac... [Published RSC - May 02 2013]
Cyclodextrin-Functionalized Fe3O4@TiO2: Reusabl... [Published ACS Nano - May 02 2013]
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Researchers demonstrate water splitting to gene... [Published Green Car Congress - Jan 18 2013]
Schematic showing CO2 laser pyrolysis synthesis of silicon nanoparticles transferred to a custom stainless steel prototype cartridge used to generate hydrogen for fuel cell applications. Credit: ACS, Erogbogbo et al. Click to enlarge. A team of researchers ...
ARPA-E awards $130M to 66 “OPEN 2012” transform... [Published Green Car Congress - Nov 28 2012]
The US Department of Energy (DOE) Advanced Research Projects Agency – Energy (ARPA-E) has selected 66 research projects to receive a total of $130 million in funding through its “OPEN 2012” program. ( Earlier post .) The OPEN 2012 projects will ...
US/China research team proposes “solar energy f... [Published Green Car Congress - Nov 26 2012]
A visualization of the broad-spectrum solar energy funnel.Image: Yan Liang. Click to enlarge. Researchers from Peking University in China and MIT are proposing using elastic strain as a viable agent to create an optoelectronic material with a spatially ...
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OSIsoft Presents the 2013 Engineering Innovatio... [Published Marketwire - Breaking News Releases - May 09 2013]
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