degradation – TechConnect Briefs

Ag/Ag3PO4-doped BiPO4 heterostructures and their photocatalytic applications under visible light irradiation

Chen Y.J., Tseng C.-S., Tseng P.-J., Huang C.W., Tseng C.-S., Tseng P.-J., Wu M.-Y., Wu T.H., Lai C.-Y., Wu M.-Y., Wu T.H., Lin Y-W, National Changhua University of Education, TW

Ag/Ag3PO4-doped BiPO4 (Ag/Ag3PO4/BiPO4) heterostructures were synthesized by the hydrothermal method combined with the sonochemical process. Powder X-ray diffractometry, UV–Vis diffuse reflectance spectroscopy, Raman spectroscopy, and transmission electron microscopy were used to characterize the heterostructures. The [...]

Characterization of Nanosilica Release from a Weathered Nanosilica/Polyurethane Coating

Hsueh H-C, Lu C-Y, Huang S-R, Cheng Y.L., Jacobs D., Rabb S.A., Yu L.L., Nguyen T., Sung L., National Institute of Standards and Technology, US

Polymer nanocoatings are widely used outdoor environment because the excellent properties. The addition of nanoparticles can improve performance properties including mechanical, electrical, chemical and ultraviolet resistance. However, because polymer in coating are susceptible to degradation [...]

Adsorption of paracetamol onto carbon nanomaterials and degradation by ultrasonic and gamma radiation

Hernández-Martínez A., Valdés-Callado M., González-Labrada Katia, Rapado-Paneque M., Chávez-Ardanza A., Arias M., Serp P., Bacsa R.R., Jáuregui-Haza U.J., University of Artemisa, CU

The processes integration does the treatment of wastewater polluted with pharmaceuticals a more efficient process. The adsorption of pollutants on different material, like carbon based or silica is one of the technologies more studied for [...]

Development of a highly durable anode support for solid oxide fuel cell

Mehran M.T., Song R-H, Lim T-H, Lee J.W., Lee S.B., Lee J.W., Lee S.B., Park S-J, Korea Institute of Energy Research, KR

Solid oxide fuel cells are well known to be highly efficient and clean energy conversion devices for stationary and portable power generation. The ceramics based SOFC’s operate at high temperatures (>700 °C) and the durability [...]

Detection and degradation of environmental pollutants based on Fe3O4@Au nanoparticles as surface enhanced Raman scattering (SERS) substrates

Du J., Jing C., Chinese Academy of Sciences, CN

Ever since the surface-enhanced Raman scattering (SERS) effect was discovered, it has played a significant role in the field of vibrational spectroscopy and is now finding increasing use in high-profile applications. Recently, many catalytic-active SERS [...]

Effect of Temperature on Surface Degradation and Nanoparticle Release of Nano-SiO2 Epoxy Coatings under UV Radiation

Tien C.C., Chang A.C.-H., Liu B.H.-C., Sung L.P., National Cheng Kung University, US

To investigate the mechanisms of polymer degradation, polymer matrix, epoxy, with the addition of nanosilica (SiO2), was chosen. In this study an outdoor environment was simulated in the NIST (Nation Institute of Standards and Technology) [...]

Behaviour of mesoporous silica (MCM-41) supported catalysts in degradation reactions

Guthrie C.P., Reardon E.J., University of Waterloo, CA

Research was carried out to investigate several aspects of Mobil’s composition of matter #41 (MCM-41) pertaining to its potential application in water treatment technologies. It was found that Pd-impregnated MCM-41 (Pd/MCM-41) has enhanced stability in [...]

Behaviour of mesoporous silica (MCM-41) supported catalysts in degradation reactions

Guthrie C.P., Reardon E.J., University of Waterloo, CA

Research was carried out to investigate several aspects of Mobil’s composition of matter #41 (MCM-41) pertaining to its potential application in water treatment technologies. It was found that Pd-impregnated MCM-41 (Pd/MCM-41) has enhanced stability in [...]

Ageing of elastomeric composites with natural antioxidants

Masek A., Zaborski M., Institute of Polymer and Dye Technology, PL

The natural antioxidants which were added to ethylene-octene elastomer (polyolefin elastomer-Engage). Vulcanizates were then subjected to numerous ageing: weathering (climat of Floryda), UV (0,7 W/m2), thermo-oxidation ageing (1000C/10days) and thermal-shock (-600C/+1000C) as a function of [...]

Ageing of elastomeric composites with natural antioxidants

Masek A., Zaborski M., Institute of Polymer and Dye Technology, PL

The natural antioxidants which were added to ethylene-octene elastomer (polyolefin elastomer-Engage). Vulcanizates were then subjected to numerous ageing: weathering (climat of Floryda), UV (0,7 W/m2), thermo-oxidation ageing (1000C/10days) and thermal-shock (-600C/+1000C) as a function of [...]