Browsing by Title
Now showing items 20158-20177 of 53172
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Photocatalytic treatment of industrial wastewater
( Qatar University , 1997 , Article)A novel Plexiglas double-skin sheet reactor ( DSSR ) able to use diffuse as well as direct sunlight for the detoxification of industrial wastewater was used. The efficiency of the photocatalytic treatment of a highly ... -
Photocatalytic, antibacterial and electrochemical properties of novel rare earth metal oxides-based nanohybrids
( KeAi Communications Co. , 2020 , Article)Mixed metal oxide nanocomposites (rare earth-based) have become irreplaceable and tend to display great functioning in all kinds of arenas like as photocatalytic, electrochemical, and biological. NiO-CGSO [NiO-Ce0.8Gd0.2 ... -
Photochemical grafting of polysulfobetaine onto polyethylene and polystyrene surfaces and investigation of long-term stability of the polysulfobetaine layer in seawater
( John Wiley and Sons Ltd , 2018 , Article)Low-density polyethylene (LDPE) and polystyrene (PS) films with hydrophilic surface were prepared by photochemical grafting of sulfobetaine-based copolymer containing photolabile moiety, and long-term stability of the ... -
Photoconductive response of strained silicon nanowires: A Monte Carlo study
( AIP Publishing LLC. , 2014 , Article)Using Ensemble Monte Carlo simulations, the photocurrent in a 500 nm long strained [110] silicon nanowire with diameter of 3.1 nm is investigated. It was observed that a phototransistor based on this nanowire can have ... -
Photodegradation and Its Effect on Plant Litter Decomposition in Terrestrial Ecosystems: A Systematic Review
( MDPI , 2023 , Article Review)Photodegradation is an important mechanism that affects carbon and nutrient cycling; a significant amount of data has been reported previously. The present review includes the effect of a wider spectrum of solar radiation ... -
Photodegradation of methylene blue dye by the UV/H2O2 and UV/acetone oxidation processes
( Elsevier B.V. , 2005 , Article)The photodegradation of methylene blue (MB) dye in aqueous solutions was investigated using a laboratory-scale UV lamp in the presence of hydrogen peroxide (H2O2). Different initial concentrations of dyes (10, 20, 30, 40 ... -
Photodegradation of Organic Pollutants Using an Efficient Molybdate Intercalated Mg2+/Fe3+ Layered Double Hydroxide (LDH)
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Organic pollutants dyes are the highly toxic major waste products causing severe harmful environmental pollution. From the viewpoint of environmental issues, the removal of harmful organic dye compounds is of great interest ... -
Photodynamic therapy for hair removal
( Hamad bin Khalifa University Press (HBKU Press) , 2013 , Article)Background: Unwanted hair is one of the most common medical problems affecting women of reproductive age inducing a lot of psychological stress and threatening their femininity and self-esteem. Old methods of removing ... -
Photoelectrocatalytic hydrogen production on ternary Co-Pi/Ag/TiON nanotube array photocatalysts
( John Wiley and Sons Ltd , 2021 , Article)Ternary Co-Pi-Ag/TiON photocatalysts were designed and fabricated by a facile precipitation and electrochemical strategy. The results showed the superiority of the Co-Pi-Ag/TiON as a promising photoanode for photoelectrochemical ... -
Photoelectrochemical Conversion from Graphitic C3N4 Quantum Dot Decorated Semiconductor Nanowires
( American Chemical Society , 2016 , Article)Despite the recent progress of developing graphitic carbon nitride (g-C3N4) as a metal-free photocatalyst, the synthesis of nanostructured g-C3N4 has still remained a complicated and time-consuming approach from its bulk ... -
Photoenhanced degradation of methylene blue on polyaniline engineered multiferroics (BiAl0.3Mn0.3Fe0.4O3) nanocomposite systems: A comprehensive study
( Desalination Publications , 2017 , Article)This study encompasses the synthesis of polyaniline (PANI) composites with different contents of BiAl0.3Mn0.3Fe0.4O3 (12.5%, 25%, 37.5% and 50% w/w) nanoparticles (NPs). The surface morphologies and crystallite structures ... -
Photoimmobilization of zwitterionic polymers on surfaces to reduce cell adhesion
( Academic Press Inc. , 2017 , Article)Simple and robust methods for modifying hydrophobic polymer surfaces with zwitterionic polymers using UV irradiation were developed. Two random zwitterionic copolymers consisting of either carboxybetaine or sulfobetaine ... -
Photoinduced electron transfer interaction of anthraquinones with aniline quenchers: Influence of methyl substitution in aniline donors
( Elsevier , 2017 , Article)© 2016 Elsevier B.V. Photoinduced electron transfer between triplet state of 9,10-anthraquinone (AQ) and its two derivatives: 2-chloro-9,10-anthraquinone (CAQ) and sodium anthraquinone-2-sulfonate (AQS) and ground state ... -
Photonics and fracture toughness of heterogeneous composite materials
( Nature Publishing Group , 2017 , Article)Fracture toughness measures the resistance of a material to fracture. This fundamental property is used in diverse engineering designs including mechanical, civil, materials, electronics and chemical engineering applications. ... -
Photoperiod and salinity effects on survival and some blood parameters in female Bufo regularis
( Qatar University , 1986 , Article)This study, investigates the effect of different salinities injected (30, 70 and 100 % sea water) and photoperiods (L:D/8:16,L:D/12:12 and L: D / 16 : 8 ) on female Bufo regularis (1) survival rate, (2 ) oxygen and carbon ... -
Photopolymerization of Polymeric Composites in Drug Delivery, Tissue Engineering, and Other Biomedical Applications
( Springer , 2019 , Book chapter)Photopolymerization of polymeric composites has been widely used in several biomedical applications including, drug delivery, tissue engineering, and cell encapsulation as it combines the properties of both the photopolymerizable ... -
Photoresponse of silicon with asymmetric area contacts
( Institute of Physics Publishing , 2016 , Article)We report on high performance metal-semiconductor-metal (MSM) photosensors based on asymmetric metal pad areas. The reported devices require a single-step metal deposition, and exhibit large photo response even under ... -
Photosensitivity and Photocatalytic Activity of ZnO Thin Films Annealed in Different Environmental Conditions
( Springer Nature , 2022 , Article)The microwave-assisted successive ionic layer adsorption and reaction (mSILAR) deposition method was employed for the synthesis of nano-polycrystalline zinc oxide (ZnO) thin film. In this study, annealing of the prepared ... -
Photostability of the Oleic Acid-Encapsulated Water-Soluble CdxSeyZn1-xS1-y Gradient Core-Shell Quantum Dots
( American Chemical Society , 2017 , Article)Composite systems where quantum dots (QDs) are combined with other nanomaterials (e.g., gold nanorods) in aqueous solutions have attracted broad attention - both for their potential in applications and for studies of ... -
Photosynthetic acclimation to high temperatures in wheat
( John Wiley & Sons, Ltd. , 1992 , Article)Growth and photosynthetic performance were assessed for the Finnish wheat Triticum aestivum L. var. APU under a cool (13/10�C day/night) and a warm (30/25�C day/night) regime. Plants exhibited a certain degree of acclimation ...