Synthesis and characterization of La_2Ti_2O_7 employed for photocatalytic degradation of reactive red 22 dyestuff in aqueous solution

Wei-Ming Hou; Young Ku

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Synthesis and characterization of La_2Ti_2O_7 employed for photocatalytic degradation of reactive red 22 dyestuff in aqueous solution

机译：La_2Ti_2O_7的光催化降解活性红22染料的合成与表征

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Perovskite structured La_2Ti_2O_7 catalyst prepared by polymerized complex method was characterized and examined the photocatalytic activity by decomposing an azo dyestuff, Reactive Red 22, in aqueous solutions under UV irradiation. La_2Ti_2O_7 powders prepared by polymerized complex method exhibit higher surface areas, better homogeneity and are more sensitive to solution than those prepared by solid-state method. The first derivatives of UV-vis DRS patterns confirmed the complete crystallization of La_2Ti_2O_7 sintered at temperatures higher than 900 °C. The effects of sintering temperature of catalyst and solution pH of photocatalytic reaction were studied.

机译：通过聚合络合方法制备的钙钛矿结构的La_2Ti_2O_7催化剂的特征在于，通过在紫外线照射下，在水溶液中分解偶氮染料活性红22来研究其光催化活性。聚合络合法制备的La_2Ti_2O_7粉末比固态法制备的粉末具有更高的表面积，更好的均匀性和对溶液的敏感性。 UV-vis DRS图案的一阶导数证实了在高于900°C的温度下烧结的La_2Ti_2O_7的完全结晶。研究了催化剂的烧结温度和光催化反应溶液pH值的影响。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2011年第19期|共6页
作者
Wei-Ming Hou; Young Ku;
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正文语种 eng
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La_2Ti_2O_7; Photocatalysis; Perovskite; Polymerized complex method; Reactive Red 22;

机译：La_2Ti_2O_7;光催化;钙钛矿;聚合络合物;活性红22;

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1. Synthesis and characterization of La_2Ti_2O_7 employed for photocatalytic degradation of reactive red 22 dyestuff in aqueous solution [J] . Wei-Ming Hou, Young Ku Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2011,第19期

机译：La_2Ti_2O_7的光催化降解活性红22染料的合成与表征
2. Photocatalytic degradation of Reactive Red 22 in aqueous solution by UV-LED radiation [J] . Wen-Yu Wang, Young Ku Water Research . 2006,第12期

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Synthesis and characterization of La_2Ti_2O_7 employed for photocatalytic degradation of reactive red 22 dyestuff in aqueous solution

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