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制备条件对水热法合成ZnWO_4纳米晶的影响 被引量:3

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摘要 以Zn(NO_3)_2·6H_2O和Na_2WO_4·2H_2O为反应物,用HCI或者NaOH调节反应溶液的pH值,采用水热法制备ZnWO4纳米晶。讨论了反应溶液pH值、水热反应时间及反应温度对ZnWO_4纳米晶的影响。经X射线衍射(XRD)、红外光谱(IR)、透射电子显微镜(TEM)分析,结果表明:在制备过程中对ZnWO_4纳米晶物相、尺寸、微观形貌及荧光性能影响最大的条件为pH值的变化。研究了pH值对Ce^(3+):ZnWO_4荧光性能的影响,经荧光光谱(PL)测试表明:在pH=7的条件下制备的Ce^(3+):ZnWO_4纳米晶的荧光性能最好。
出处 《光源与照明》 2012年第3期13-17,22,共6页 Lamps & Lighting
基金 晶体材料国家重点实验开放课题(KT0808) 济南大学博士基金项目(B0628)
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