Green synthesis, structure feature and energy transfer of yellow‐emitting (Y,Gd) 2 O 2 SO 4 :Dy phosphors

Luminescence ◽  
2021 ◽  
Author(s):  
Xiaolong Yang ◽  
Bin Lu ◽  
Xinyuan Wang ◽  
Yoshio Sakka
Keyword(s):  
Energy Transfer ◽  
Green Synthesis ◽  
Structure Feature

Solar Synthesis of Limonene Epoxide

2017 ◽  
Author(s):  
Rosaria Ciriminna ◽  
Francesco Parrino ◽  
Claudio De Pasquale ◽  
Leonardo Palmisano ◽  
Mario Pagliaro
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Green Synthesis ◽  
Photocatalytic Degradation ◽  
Industrial Production ◽  
Thermoplastic Polymer ◽  
Selective Catalyst ◽  
Solar Light Irradiation ◽  
Limonene Oxide ◽  
Degradation Of Pollutants

The silylation of crystalline titania P25, commonly used for photocatalytic degradation of pollutants, results in an exceptionally selective catalyst for the aerobic limonene epoxidation to 1,2-limonene oxide under solar light irradiation. The hypothesized mechanism involves the singlet oxygen generated through energy transfer from the excited TiO<sub>2</sub> to adsorbed O<sub>2</sub> molecules. The reaction product is the valued precursor of bio-based poly(limonene carbonate), a thermoplastic polymer of superior thermal and optical properties whose industrial production is in need of an efficient green synthesis of limonene oxide.

Solar Synthesis of Limonene Epoxide

2017 ◽  
Author(s):  
Rosaria Ciriminna ◽  
Francesco Parrino ◽  
Claudio De Pasquale ◽  
Leonardo Palmisano ◽  
Mario Pagliaro
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Green Synthesis ◽  
Photocatalytic Degradation ◽  
Industrial Production ◽  
Thermoplastic Polymer ◽  
Selective Catalyst ◽  
Solar Light Irradiation ◽  
Limonene Oxide ◽  
Degradation Of Pollutants

The silylation of crystalline titania P25, commonly used for photocatalytic degradation of pollutants, results in an exceptionally selective catalyst for the aerobic limonene epoxidation to 1,2-limonene oxide under solar light irradiation. The hypothesized mechanism involves the singlet oxygen generated through energy transfer from the excited TiO<sub>2</sub> to adsorbed O<sub>2</sub> molecules. The reaction product is the valued precursor of bio-based poly(limonene carbonate), a thermoplastic polymer of superior thermal and optical properties whose industrial production is in need of an efficient green synthesis of limonene oxide.

A quantitative approach to inner shell losses

1978 ◽  
Vol 36 (1) ◽  
pp. 526-527 ◽  
Author(s):  
R.D. Leapman ◽  
P. Rez ◽  
D.F. Mayers
Keyword(s):  
Energy Transfer ◽  
Cross Section ◽  
Cross Sections ◽  
Accurate Determination ◽  
Background Intensity ◽  
Core Excitation ◽  
Quantitative Basis ◽  
Cross Section Differential ◽  
Bound Electrons

Microanalysis by EELS has been developing rapidly and though the general form of the spectrum is now understood there is a need to put the technique on a more quantitative basis (1,2). Certain aspects important for microanalysis include: (i) accurate determination of the partial cross sections, σx(α,ΔE) for core excitation when scattering lies inside collection angle a and energy range ΔE above the edge, (ii) behavior of the background intensity due to excitation of less strongly bound electrons, necessary for extrapolation beneath the signal of interest, (iii) departures from the simple hydrogenic K-edge seen in L and M losses, effecting σx and complicating microanalysis. Such problems might be approached empirically but here we describe how computation can elucidate the spectrum shape.The inelastic cross section differential with respect to energy transfer E and momentum transfer q for electrons of energy E0 and velocity v can be written as

Sign in / Sign up

Export Citation Format

Share Document