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Morphological control of cadmium sulfide nanostructures by electrophoretic deposition

Particuology 2016年第1期14卷 73-77页

作者： Alejandro Vazquez thelma serrano Boris Kharisov Idalia Gomez Universidad Autonoma de Nuevo Leon UANL Facultad de Ciencias Quimicas Av. Universidad S/N San Nicolas de los Garza Nuevo Leon 66451 Mexico

Thin films and one-dimensional CdS nanostructures were formed by electrophoretic deposition of nanoparticles with morphological control, Particles less than 1Ohm in diameter were prepared by a microwave assisted synthesis using trisodium citrate as capping agent. The particles were character- ized by UV-Vis spectrophotometry, dynamic light scattering, and X-ray diffraction. Nanoparticles in the resulting aqueous dispersion were electrodeposited without any further treatment on aluminum plates. The nanostructures consisted of thin films with surface roughness being tuned with the applied voltage. One-dimensional nanostructures were formed by varying the applied voltage and by changing the molar ratio of the precursors in the nanocrystal synthesis. These results illustrate two different mechanisms of electrophoretic deposition that lead to the formation of different nanostructures,

关键词： Electrophoretic deposition Nanostructure Nanoparticle

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Micro- and nanoporous materials capable of absorbing solvents and oils reversibly： the state of the art

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Petroleum Science 2017年第1期14卷 84-104页

作者： Javier S. Acevedo Cortez Boris I. Kharisov thelma E. serrano Quezada Tomas C. Hernandez Garcia Facultad de Ciencias Qufmicas Universidad Autonoma de Nuevo Leon Ave. Universidad s/n66455 San Nicolas de los Garza NL Mexico

Treatment of petroleum spills and organic solvent pollution in general is an important issue; several techniques are under development to remove oil from water. The use of absorbents is one of the most common techniques to tackle this problem. These absorbents can be classified based on their characteristics of recyclability into irreversible and reversible ones. In this review, we discuss the application of several materials as oil absorbents, according to their classification and characteristics such as hydrophobicity, surface area and oil absorption capacity. Also, the fabrication methods for some materials are presented and analyzed.

关键词： Oil spills - Composites Reversibility Aerogels - Natural absorbents Micro- and nanoporousmaterials

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