What's more important is that the dopant of V_2O_5 on TiO_2 thin films could produce a visible-light response to the films, the water contact angles decreased from 35° before irradiation to 8° after being illuminated by sunlight for 40 minutes while the those of pure TiO_2 thin films remained unchanged after irradiation. And the contact angles decreased as a whole with increasing the amount of V_2O_5 content.
Thecharacterization was mainly by IR, DSC, contact angles, PC, E. It was found that under certain fixedconditions St-BA, dodecyl sulfonic acid sodium salt ,LAS, OR/36, SDS, 40 percent of monomers, aconcentration of 8 mmoLL-1 for iniators, 60 ℃ of polymerization temperature, 7 of pH value, 600N/min for sintering speed, over 10 hours for polymerization time, could get better PC and E.
TiO 2 films on the surface of Al 2O 3/Al and pure Al sheet were prepared by a dip-coating technique of TiO 2 colloid. The photocatalytic degradation of oleic acid and photocatalytic oxidation of C 2H 4 on the samples were studied by FTIR ATR technique and a batch reactor, respectively, and the photoinduced hydrophilic property of the samples was evaluated by water contact-angle.
在纯铝片和具有氧化铝层的铝片上用提拉法制备 Ti O2 /Al和 Ti O2 /Al2 O3/Al样片 ,通过 FTIR ATR技术和密闭间歇式反应装置分别考察了 Ti O2 薄膜对油酸和乙烯的光催化降解性能 ,通过测试接触角考察Ti O2 薄膜的光致亲水性 .
The surface of these films showed contact-angle anisotropy, thereby indicating the formation of spatially oriented structures on the surface.
Characterization of glass, quartz, and fused silica capillary column surfaces from contact-angle measurements
Contact-angle measurements and X-ray photoelectron spectroscopy (XPS or ESCA) were used to characterize polypropylene (PP) films that were exposed to laminar premixed air: natural gas flames containing small quantities of nitrous oxide.
Contact-angle measurements, atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS or ESCA) were used to characterize flame-treated biaxially oriented polypropylene (PP) films.
Fracture-mechanics-based techniques, and X-ray photoelectron spectroscopy and contact-angle measurements were used to quantify the adhesion energy and silane surface coverage, respectively.