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纳米Cu₂O花的制备及其光学性质研究

Preparation and studies on optical properties of Cu₂O nanoflowers

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【Author】 LUO Yong-song1,2,XIA Xiao-hong1,REN Qin-feng1,LI Su-qin1,LI Jia-lin1,JIA Zhi-jie1(1.Lab of Nano-materials,Huazhong Normal University,Wuhan 430079,China;2.School of Physics Electronic Engineering,Xinyang Normal Nniversity,Xinyang 464000,China)

【机构】华中师范大学纳米研究院；华中师范大学纳米研究院湖北武汉430079；信阳师范学院物理与电子工程学院；河南信阳464000；湖北武汉430079；

【摘要】以Cu(CH3COO)2.H2O为原料,CTMAB(十六烷基三甲基溴化铵)和NaOH为添加剂,NaBH4为还原剂,通过液相法在低温(60℃)的条件下分步合成了纳米Cu2O花。采用XRD、SEM、TEM和紫外–可见吸收光谱分析等手段对纳米Cu2O花进行了表征。结果表明,纳米Cu2O花的生长过程符合成核–溶解–再结晶的机制。对照实验发现,NaOH和CTMAB的浓度对最终纳米花的形成起了关键性的作用。更多还原

【Abstract】 Flowerlike Cu2O nanostructures have been successfully prepared by a low liquid phase method using Cu(CH3COO)2.H2O as the starting materials and NaBH4 as the reducer agent.The as-prepared Cu2O nanoflowers were characterized by XRD,SEM,TEM and UV-vis spectrophotometer.The results indicate that the growth of the nanoflowers are governed by a nucleation-dissolution-recrystallization growth mechanism.Control experiments are carried out to demonstrate that the concentration of NaOH and CTMAB play key roles in the formation of the as-synthesized nanoflowers.更多还原