纳米木质素诱导制备金盏花状纳米ZnO及光催化性能  

Preparation of calendula-like nano-ZnO induced by nano-lignin and its photocatalytic performance

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作  者:刘国超[1] 刘志明[1] 

机构地区:[1]东北林业大学材料科学与工程学院生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出  处:《功能材料》2013年第23期3452-3454,3460,共4页Journal of Functional Materials

基  金:国家自然科学基金资助项目(31070633);人力资源和社会保障部留学回国人员科技活动择优资助项目(07041311401);中央高校基本科研业务费专项资金资助项目(DL11EB01)

摘  要:以纳米木质素为形貌诱导剂,以硝酸锌和氨水为原料,采用水热合成法制备金盏花状的纳米ZnO。通过X射线衍射(XRD)和扫描电子显微镜(SEM)对样品的结晶特性及形貌进行了表征分析,并对其光催化性能进行了测定。研究结果表明,纳米木质素能诱导纳米ZnO在其表面沉积和生长,形成晶粒大小为42.3 nm的金盏花状结构,该金盏花状纳米ZnO室温下2.5 h内对孔雀石绿的紫外光降解效率为91.3%。Calendula-like nano-ZnO was prepared by hydrothermal method using nano-lignin as morphology-inducing and coordinate agent with zinc nitrate and ammonia as raw materials.The crystalline characteristic and mi crostructure of samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) ,the photocatalytic performance of samples were also investigated.The results showed that nano-lignin could induce nano ZnO in its surface deposition and growth, forming calendula-like nano-ZnO which grain size was 42.3 nm, the ultraviolet degradation efficiency of which for malachite green was 91.3 % within 2.5 h at room temperature.

关 键 词:纳米木质素 形貌诱导 金盏花状纳米ZnO 光催化 

分 类 号:TQ351[化学工程] O636.2[理学—高分子化学]

 

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