化工进展Issue(3)：720-723,4.DOI:10.3969/j.issn.1000-6613.2014.03.034
纳米二氧化铈的制备及光催化性能
Preparation and photocatalytic performance of nano-ceria
摘要
Abstract
A facile route for the synthesis of nano cerium oxide powder (CeO2) is provided by the oxidation of cerium nitrate [Ce(NO3)3] with hydrogen peroxide and precipitation with ammonia. Factors influencing the size and morphology of the particle are analyzed. And the product is observed with a scanning electron microscope (SEM). Exhaust degradation test device is designed to study the photocatalytic properties of nano-CeO2 in the degradation of harmful gases within the automobile exhaust (HC and NOx). The results indicate that the ammonia concentration is 1.0 mol/L,with ethanol and ethylene glycol as dispersant,when the Ce(NO3)3 concentration is 2.0 mol/L,and the as-prepared nano-CeO2 is sphere-like nanoparticle aggregates with diameters around 50 nm and of good dispersibility,with which the degradation of HC and NOx amounts of 11% and 90% respectively, showing a good photocatalytic performance.关键词
纳米材料/二氧化铈/氧化-沉淀法/光催化/尾气降解Key words
nanomaterial/ceria/oxidation-precipitation method/photocatalysis/exhaust degradation分类
化学化工引用本文复制引用
耿九光,臧文杰,李毅,陶建强..纳米二氧化铈的制备及光催化性能[J].化工进展,2014,(3):720-723,4.基金项目
国家自然科学基金项目（51108374）。 （）
