scholarly journals Surface Propensity of Anions in a Binary Ionic‐Liquid Mixture Assessed by Full‐Range Angle‐Resolved X‐ray Photoelectron Spectroscopy and Surface‐Tension Measurements

ChemPhysChem ◽  
2020 ◽  
Vol 21 (21) ◽  
pp. 2397-2401
Author(s):  
Erdinc Oz ◽  
Ozgur Sahin ◽  
Halil I. Okur ◽  
Sefik Suzer
2014 ◽  
Vol 16 (39) ◽  
pp. 21486-21495 ◽  
Author(s):  
Josephina Werner ◽  
Jan Julin ◽  
Maryam Dalirian ◽  
Nønne L. Prisle ◽  
Gunnar Öhrwall ◽  
...  

The water–vapor interface of aqueous solutions of succinic acid, where pH values and bulk concentrations were varied, has been studied using surface sensitive X-ray photoelectron spectroscopy (XPS) and molecular dynamics (MD) simulations.


2020 ◽  
Vol 73 (11) ◽  
pp. 1088
Author(s):  
Altafhusen Naikwade ◽  
Megha Jagadale ◽  
Dolly Kale ◽  
Gajanan Rashinkar

A new magnetic nanoparticle supported ionic liquid phase (SILP) catalyst containing perruthenate anions was prepared by a multistep procedure. The various analytical techniques such as FT-IR spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, thermogravimetric analysis, energy dispersive X-ray analysis, and vibrating sample magnetometer analysis ascertained the successful formation of catalyst. The performance of a magnetically retrievable SILP catalyst was evaluated in the selective oxidation of alcohols. The split test and leaching studies of the SILP catalyst confirmed its heterogeneous nature. In addition, the reusability potential of SILP catalyst was also investigated which revealed its robust activity up to six consecutive cycles.


2006 ◽  
Vol 220 (10) ◽  
pp. 1439-1453 ◽  
Author(s):  
J. M. Gottfried ◽  
F. Maier ◽  
J. Rossa ◽  
D. Gerhard ◽  
P. S. Schulz ◽  
...  

Author(s):  
Anna Gołąbiewska ◽  
Micaela Checa-Suárez ◽  
Marta Paszkiewicz-Gawron ◽  
Wojciech Lisowski ◽  
Edyta Raczuk ◽  
...  

Spherical microparticles of TiO2 were synthesized by the ionic liquid-assisted solvothermal method at different reaction time (3, 6, 12 and 24h). The properties of the prepared photocatalysts were investigated by means of UV-vis diffuse-reflectance spectroscopy (DRS), BET surface area measurements, scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), and X-ray photoelectron spectroscopy (XPS). The results indicated that the efficiency of phenol degradation was related with a time of the solvothermal synthesis as determined for TiO2_EAN(1:1)_24h sample. Microparticles of TiO2_EAN(1:1)_3h formed during the only 3h of synthesis time revealed really high photoactivity under visible irradiation – 75%. This value increased to 80% and 82% after 12h and 24h, respectively. The photoactivity increase was accompanied by the increase of the specific surface area thus pores size, as well as ability to absorb UV-vis irradiation. The high efficiency of phenol degradation of IL-TiO2 photocatalysts was ascribed to the interaction between the surface of TiO2 and ionic liquid components (carbon and nitrogen).


2020 ◽  
Vol 10 (2) ◽  
pp. 251-257
Author(s):  
Ranfeng Ye ◽  
Min Ni ◽  
Hao Chen ◽  
Shengqing Li

For the first time, mesoporous nickel–titanium-trimesic acid (NTT) inorganic–organic hybrid composite was synthesized in water-in-[Bmim]PF6 ionic liquid microemulsions using the trimesic acid (BTC) as the linker. The synthesized NTT was characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) analysis, powder X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR) methods, etc. Then, the isotherm and kinetic of adsorption were studied. The experimental data were well fitted with isotherm models of Langmuir and Freundlich (IMLF) at 298 K and 308 K and better fitted with the isotherm model of Langmuir (IML) at 318 K with the adsorption capacity of 662.212 μmol/g (maximum). The adsorption of rhodamine B (RhB) on NTT can be described by pseudo-second-order (PSO) kinetic model. This proposed method for synthesis of mesoporous NTT inorganic–organic hybrid composite is facile, environment-friendly and operated at room temperature, which could be applied to synthesis of other mesoporous inorganic–organic hybrid composites.


2019 ◽  
Vol 123 (8) ◽  
pp. 4914-4925 ◽  
Author(s):  
Fei Wu ◽  
Waruni V. Karunaratne ◽  
Claudio J. Margulis

ChemistryOpen ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1362-1362 ◽  
Author(s):  
Francesco Greco ◽  
Sunghwan Shin ◽  
Federico J. Williams ◽  
Bettina S. J. Heller ◽  
Florian Maier ◽  
...  

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