【摘 要】
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An efficient and convenient one-step process was developed for synthesizing nev effective red luminous materials through ordered mesoporous γ-alumina assemblin
【机 构】
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Department of Chemistry and Institute of Nanochemistry
论文部分内容阅读
An efficient and convenient one-step process was developed for synthesizing nev effective red luminous materials through ordered mesoporous γ-alumina assembling with Eu3+.Employing P123 as a structure-directing agent and hydrochloric acid,citric acid as pH adjustor,ordered mesoporous γ-alumina was fabricated by simple sol-gel method.The pore structure was characterized by X-ray diffraction (XRD),N2 adsorption-desorption isotherms and transmission electron microscopy (TEM).The as-synthesized γ-aluminas had narrow pore-size distribution (5-7 nm),large surface area (246 m2/g) and high thermal stability (750-1000 ℃).The luminous property of materials was characterized by Photoluminescence (PL) spectra.The γ-Al2O3;Eu3+ materials had efficient luminescence,and the emission strength was related to the content of Eu3+.
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