| 微晶纤维素/CdS纳米复合材料的原位复合反应 |
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| 引用本文： | 苏霞,唐爱民. 微晶纤维素/CdS纳米复合材料的原位复合反应[J]. 高分子材料科学与工程, 2011, 0(9): 134-137 |
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| 作者姓名： | 苏霞 唐爱民 |
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| 作者单位： | 华南理工大学制浆造纸工程国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(50573022,20876060) |
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| 摘 要： | 以微晶纤维素(MCC)为模板,采用原位复合法制备MCC/CdS纳米复合材料。研究了超声波预处理以及镉离子、硫离子物质的量比对复合效果的影响,用扫描电镜(SEM),原子力显微镜(AFM),X射线衍射,荧光光谱(PL)以及激光共聚焦显微镜(CLSM)对复合材料的结构及性能进行表征。研究表明,超声波预处理后的纤维素对镉离子吸附能力更强,粒径为30 nm~100nm的CdS粒子均匀分布于纤维素表面,所得CdS为立方型晶体,复合材料体现出一定强度的光致发光性,较佳Cd2+∶S2-(物质的量比)为3∶1。
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| 关 键 词： | 微晶纤维素 纳米硫化镉 原位复合 光致发光 |
In-Situ Composition of Microcrystalline Cellulose/CdS Nanocomposites |
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| Xia Su,Aimin Tang. In-Situ Composition of Microcrystalline Cellulose/CdS Nanocomposites[J]. Polymer Materials Science & Engineering, 2011, 0(9): 134-137 |
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| Authors: | Xia Su Aimin Tang |
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| Affiliation: | (State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Cellulose/CdS nanocomposites were prepared by in-situ process using microcrystalline cellulose(MCC) as matrix.The influences of reaction conditions such as reactant mol ratio and the effect of ultrasonic pretreatment were studied.The structure and properties of obtained cellulose/CdS nanocomposites were investigated by means of scanning electron microscope(SEM),X-ray diffraction(XRD),atomic force microscopy(AFM),fluorescence spectrum and confocal laser scanning microscopy(CLSM).The results show that ultrasonic pretreatment on cellulose makes it a greater capacity of cadmium ion adsorption.With the size between 30 nm～100 nm,CdS particles are evenly distributed on MCC surface.XRD indicate that CdS is cubic phase and the composite materials have the property of photoluminescence.The optimal molar ratio is 3∶1(Cd2+∶S2-). |
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| Keywords: | microcrystalline cellulose nano-CdS in-situ photoluminescence |
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