基于Cu_(2)O纳米立方体转变为CuS纳米笼的光热信号增强选择性检测硫离子  

Manipulating the transformation of Cu_(2)O nanocubes to CuS nanocages for signal-enhanced photothermal detection of sulfur ions

作　　者：孔海霞 谭娟 吴世阅 蒋忠伟 王燚[1] Haixia Kong;Juan Tant;Shiyue Wu;Zhong Wei Jiang;Yi Wang(Chongqing Key Laboratory of Green Catalysis Materials and Technology,College of Chemistry,Chongqing Normal University,Chongqing 401331,China)

机构地区：[1]绿色催化材料与技术重庆市重点实验室,重庆师范大学化学学院,重庆401331

出　　处：《中国科学：化学》2024年第7期1127-1134,共8页SCIENTIA SINICA Chimica

基　　金：重庆市高校创新研究群体(编号:CXQT21015);重庆市研究生科研创新项目(编号:CYS22557)资助。

摘　　要：光热传感是通过光热转换产生的温度变化作为检测信号对目标物进行定性或定量检测的一种方法,具有操作简便、成本低、背景信号低、检测仪器便携等优势.本文开发了一种新颖的光热传感方法用于硫离子(S^(2-))的快速和高选择性测定该方法通过引入S^(2-)促使分析探针氧化亚铜(Cu_(2)O)纳米立方体向硫化铜(Cu S)空心纳米笼转化,从而显著增强探针的光热效应,其温度变化与S^(2-)的浓度呈一定的比例关系.这种基于光热信号增强的策略使得对S^(2-)的检测具有较高的选择性,且该方法利用便携式红外热像仪来读取信号,具有快速响应、操作简便和低成本等优点,可用于环境水样中S^(2-)水平的现场测定.A novel photothermal approach has been developed for the detection of sulfide ions (S^(2-)).This sensor capitalizes on the introduction of S^(2-)to expedite the transformation of cuprous oxide (Cu_(2)O) into copper sulfide (Cu S),thereby augmenting the photothermal effect of the probe.This enhancement enables the quantitative analysis of S^(2-)with remarkable selectivity,achieved through a distinctive“turn-on”photothermal signal.Furthermore,the method incorporates the utilization of a portable infrared camera for signal reading,offering advantages such as costeffectiveness,rapid detection,and straightforward operation.These features collectively position this approach as a promising solution for on-site monitoring of S^(2-)levels in environmental water samples.

关 键 词：光热传感 表面等离子体共振 纳米笼 硫化铜 氧化亚铜 

分 类 号：X832[环境科学与工程—环境工程] O652[理学—分析化学] TB383.1[理学—化学]