Preparation and Properties of ZnO by Ionic Liquid Assisted Sol-Gel Method

Zinc oxide nanopowder was prepared by sol-gel method using oxalic acid and zinc acetate as starting material for the first time. And Rhodamine B as the target material to study the different levels of ionic liquids on the photocatalytic performance of nano-ZnO. ZnO powder was determined by SEM and XRD for introduction of ionic liquids derived from nano-ZnO surface morphology and crystal before and after. The results show that nano-ZnO catalyst surface pores increased and grain refinement by adding ionic liquid which is conducive to nano-ZnO on the photocatalytic degradation of Rhodamine B.

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Ionic Liquid Assisted Sol-Gel Prepared Ce-Doped ZnO

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.490-495.3262 ◽

2012 ◽

Vol 490-495 ◽

pp. 3262-3265 ◽

Cited By ~ 4

Author(s):

Yan Li Jiang ◽

Yan Liu ◽

Li Juan Yang ◽

Jia Yao Liu ◽

Yu Fei Lin

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Rhodamine B ◽

Sol Gel ◽

Target Material ◽

Nano Zno ◽

Before And After ◽

Doped Zno ◽

Zno Crystal ◽

First Time

Ce4+-doped zinc oxide was prepared by Ionic liquid assisted sol - gel method using oxalic acid and zinc acetate as starting material for the first time. And rhodamine B as the target material to study ionic liquid assisted preparation of Ce4+-doped ZnO photocatalytic performance. ZnO was determined by SEM and XRD for introduction of ionic liquids and Ce4+ derived from nano-ZnO surface morphology and crystal before and after. The results show that the Ce4+-doped nano-ZnO crystal structure of a rod. In ionic liquids based on the Ce4+-doped photocatalytic properties of ZnO better. The degradation of rhodamine B 30min when the degradation rate of 90%.

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Structural, Textural and Thermal Characterization of Nano-Mg/Al Hydrotalcite before and after Cr (VI) Removal

Materials Science Forum ◽

10.4028/www.scientific.net/msf.755.53 ◽

2013 ◽

Vol 755 ◽

pp. 53-60

Author(s):

Esthela Ramos Ramírez ◽

Norma Leticia Gutiérrez Ortega ◽

Cesar Augusto Contreras Soto ◽

Gustavo Rangel Porras

Keyword(s):

Crystalline Structure ◽

Sol Gel ◽

Textural Properties ◽

Kinetic Studies ◽

Thermal Characterization ◽

Gel Method ◽

Sol Gel Method ◽

Before And After ◽

Short Time

In this work there was studied the structural, textural and effect that has treat thermal on the removal of Cr (VI) of nanoMg/Al hydrotalcite (NHT) synthesized by the sol-gel method with a ratio of Mg/Al=3. These present the characterization of the nanoMg/Al hydrotalcite before and after Cr (VI) removal, as well as the kinetic studies and of balance. In agreement with the results, when the NHT are thermal treated to 350 °C the hydrotalcite crystalline structure remains but the textural properties are improved and structural. The NHT synthesized by the sol-gel method present a good capacity of removal with values of 91 mg of Cr (VI) removed / g of NHT. The above mentioned capacity of removal gets improved after thermal treating the material, reaching values of removal of 124 mg of Cr (VI) removed / g of NHT. The NHT with the Cr (VI) absorbed show decrease of the crystalline structure, as well as a saturation of the pores that annuls the porosity due to the fact that the Cr (VI) lodges both at the pores and at the intersheets. The time that him takes the HLM to remove the Cr (VI) of the watery solution is alone of 2 minutes, with which it is possible to conclude that the NHT have an excellent aptitude to remove Cr (VI) of watery solutions in an interval of very short time.

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