نتایج جستجو برای: uv light irradiation

تعداد نتایج: 505797  

2016
Hiroshi Takano Masahiro Takase Nobumitsu Sunaga Maiko Ito

We have here synthesized new chiral Schiff base Ni(II), Cu(II), Zn(II) complexes (Ni, Cu, Zn) and hybrid materials with azobenzene (AZ) in polymethyl methacrylate (PMMA). Linearly polarized UV light irradiation of these hybrid materials slightly increased their optical anisotropy of AZ as well as the complexes, which were measured with polarized IR and UV-Vis spectra and discussed based on TD-D...

Journal: :Physical chemistry chemical physics : PCCP 2016
Soumita Mukhopadhyay Debabrata Maiti Sabyasachi Chatterjee Parukuttyamma Sujatha Devi Gopinatha Suresh Kumar

A ternary nanostructured photocatalyst consisting of ZnO/TiO2/Au was designed to achieve an enhanced solar absorption due to the coupling of surface enhanced plasmonic absorption of metal and semiconductor excitons. TiO2 coated ZnO rods with an aspect ratio of 8-12 were decorated with citrate capped gold nanoparticles for photocatalytic degradation of organic pollutants in simulated waste water...

Journal: :Archives of dermatology 2008
Frank Wang Luis A Garza Soyun Cho Reza Kafi Craig Hammerberg Taihao Quan Ted Hamilton Maureen Mayes Voravit Ratanatharathorn John J Voorhees Gary J Fisher Sewon Kang

OBJECTIVE To investigate the efficacy, potential limitations, and biological mechanisms of UV-A1 phototherapy for skin sclerosis due to collagen deposition disorders. DESIGN Before-and-after trial of UV-A1 irradiation of sclerotic skin; in vivo biochemical analyses after UV-A1 irradiation of normal skin. SETTING Academic referral center. PARTICIPANTS Patients with morphea/scleroderma or s...

2016
Tomoya Takada Takuma Baba Shigeaki Abe Vijay Kumar Thakur

In this work, we investigated a simple one-step process for the formation of chemical bonds between multi-walled carbon nanotubes (MWCNTs) and benzyl-type side chain radicals generated by UV photolysis of polystyrene derivatives containing the chloromethyl (–CH2Cl) group. Poly(4-chloromethyl)styrene, or styrene/4-(chloromethyl)styrene random copolymer, was mixed with MWCNTs in 1-methyl-2-pyrrol...

Journal: Journal of Nanoanalysis 2018

Today, despite the increasing demands for the products of chemical industries and the relatedfactories, the challenges of environmental pollution have not been improved and it is approaching avery dangerous stage. In this regard, the role of dyeing industries in contaminating the environment isundeniable. In this research, ZnO and ZnO-TiO2 nanoparticles were synthesized by co-...

Journal: :caspian journal of enviromental sciences 0

the aim of this study was to degrade furfural by a new nanotube system. to degrade some organic pollutants as well as to reduce the amount of furfural which is a well-known pollutant in oil industry, the photocatalytic process along with ultraviolet (uv) irradiation may be employed. in this study, the uv/tio2/pd system in which the nanoparticles of palladium doped into the titanium dioxide was ...

Hossein Safardoust-Hojaghan Masood Hamadanian, Masoud Salavati-Niasari, Mohammad Hassanpour, Seyed Alireza Mousavi

CeO2/ZnO nanocomposites were synthesized by microwave method that is the fast process. One of an eco-friendly solvent, ethylene glycol were used the effect of time and power of irradiation were investigated on morphology and size of nanoparticle. Prepared CeO2/ZnO nanocomposites are characterized with X-ray diffraction (XRD) analysis, Transmission Electron Microscopy (TEM), Fourier Transform In...

Journal: :Journal of Materials Chemistry B 2021

High bacterial inactivation and antifouling activity under UV light irradiation displayed by PANI PEDOT conducting polymer nanofibers (CPNs).

2017
Wenchao Liao Virender K. Sharma Su Xu Qingsong Li Lei Wang

Degradation of norfloxacin (NOR) was studied using a combination of microwave and UV irradiation methods (MW/UV process). Remarkable synergistic effect was found between MW and UV light. The removal rate with the MW/UV process was much faster than that with UV light irradiation only. Degradation of NOR followed second-order kinetics and ~72% of NOR could be removed in the first 5 min of MW/UV r...

Journal: :Chemical communications 2011
Dan Su Jingyu Wang Yupan Tang Cheng Liu Lifei Liu Xijiang Han

A WO(3)/TiO(2) composite is constructed with the ability to degrade organic molecules under visible irradiation, which is newly explored by UV pre-irradiation. The long lasting visible-light photoactivity and the consecutive photocatalytic process will benefit the efficient use of solar energy.

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