以NaClO2为主要氧化剂,使用氧化漂白桉木浆制备C-6位羧基含量为o.8 mmol/g的TEMPO氧化纤维素,然后将其剪切为纳米纤维素(NCC).再以NCC为基材,以无水氯化镉及硫化钠为前驱体,用声化学法制备了NCC/CdS纳米复合光电材料.用X射线衍射(XRD)、场发射扫描电镜(SEM)、傅里叶红外光谱仪(FT-IR)以及光电化学实验对复合材料的结构及性能进行表征.结果表明,大量CdS纳米粒子复合在NCC基材上形成NCC/CdS纳米复合材料,CdS晶粒为立方型晶体,大小为7.3 nm.用NCC/CdS纳米复合材料形成的薄膜器件在可见光区域的透光率高达60％.这种复合材料可产生1.35μA的光电流,其光电转换效率为微晶纤维素/CdS复合材料的6倍.
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