摘要
采用水热法合成了氧化锌纳米棒,研究了不同合成条件对ZnO纳米晶的影响。采用碱式碳酸锌作为前驱体,水为水热介质,可获得氧化锌纳米棒,水热时间的延长和水热温度的提高都使氧化锌纳米棒的长径比减小,其紫外发射光和近红外发射强度增大。当在体系中加入聚乙二醇时,可获得片状氧化锌结晶。当以0.5 mol/L的碳酸钠水溶液为水热介质,可得到长径比超过20,直径为500 nm左右分散均匀的纳米氧化锌棒。以氢氧化锌为前驱体,也能得到氧化锌纳米棒,其长径比为15左右。
Zinc oxide nanorods were prepared by using hydrothermal synthesis method. The effect of synthesis conditions on the properties of nanometer ZnO was studied. ZnO nanorods were obtained when using Zn4 CO3 （OH）6 · H2O and H2O as precursor and hydrothermal media. Length-diameter ratio of ZnO nanorods decreases and UV emission and near-infrared emission intensities increase with the increasing of hydrothermal time and temperature. ZnO nanosheets were achieving when using Zn4CO3 （OH）6 · H2O and PEG as precursor and hydrothermal media. ZnO nanorods with length-diameter ratio of 20 and diameters of - 500 nm were prepared by using 0.5 mol/L Na2CO3 as hydrothermal media. ZnO nanorods with length-diameter ratio 15 can also be obtained by using Zn（OH） 2 as precursor.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2008年第4期866-871,共6页
Journal of Synthetic Crystals
基金
江西省教育厅2006年度科技计划项目(No.赣教技字[2006]206号)
关键词
水热合成
氧化锌
纳米棒
hydrothermal synthesis
zinc oxide
nanorods
