纳米晶
罗丹明B
发射强度
量子产额
波长
光催化
水溶液
材料科学
光致发光
复合数
光发射
分析化学(期刊)
化学
光化学
纳米技术
荧光
光学
光电子学
物理化学
色谱法
有机化学
催化作用
复合材料
物理
作者
Zhishan Luo,Hua Zhang,Jing‐Kai Huang,Xinhua Zhong
标识
DOI:10.1016/j.jcis.2012.03.074
摘要
Water-soluble AgInS(2) (AIS) nanocrystals (NCs) have been synthesized for the first time in the presence of GSH as capping ligand in aqueous media at low temperature of 95 °C. The investigations on the effects of various experimental variables including pH value, GSH/In, In/Ag, and In/S ratios on the optical properties showed that the long time, pH of 8.5 and large GSH/In ratio could increase the intensity of the shorter wavelength (position not changed) emission, while the ratios of In/Ag and In/S could affect the emission wavelength and intensity as well as the intensity ratio of longer to shorter wavelength emission with the shorter wavelength emission tunable from 560 to 660 nm. After modifying with ZnS, the obtained ZnS-AgInS(2) (ZAIS) NCs show both slightly blue-shifted stronger PL emission and higher quantum yield increasing to 5 fold. The obtained AIS and ZAIS NCs showed promising photocatalytic activities in the degradation of rhodamine B.
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