基于MoS_(2)/Bi_(2)S_(3)复合纳米材料的正己烷催化发光传感器  

Cataluminescence Sensor for N-Hexane Based on MoS_(2)/Bi_(2)S_(3) Composite Nanomaterials

作　　者：孙柏 唐卓 程运明 张杰 王云 SUN Bai;TANG Zhuo;CHENG Yunming;ZHANG Jie;WANG Yun(School of Environment and Energy Engineering,Anhui Jianzhu University,Hefei 230601,China;Anhui Province Smart City Engineering Technology Research Center,Hefei 230601,China)

机构地区：[1]安徽建筑大学环境与能源工程学院,安徽合肥230601 [2]安徽省智慧城市工程技术研究中心,安徽合肥230601

出　　处：《安徽建筑大学学报》2022年第3期54-61,共8页Journal of Anhui Jianzhu University

基　　金：国家重点研发计划项目(2019YFC0408503);安徽省科技重大专项(18030801106);安徽省重点研究与开发计划项目(201904a07020070);安徽省高校自然科学基金项目(KJ2020A0468)。

摘　　要：采用水热法成功制备了MoS_(2)/Bi_(2)S_(3)复合纳米材料,并将其用作催化发光(CTL)方法检测正己烷的敏感材料。研究结果表明MoS2修饰能有效增强Bi_(2)S_(3)催化发光特性,该敏感材料对正己烷具有较高的灵敏度、较好的选择性及较快的响应、恢复速度,响应时间为3秒,恢复时间为16秒。在12~480 ppm浓度范围内,催化发光信号强度与正己烷浓度呈良好的线性关系:y=909.18x+1533(R2=0.9865),检出限为1.81 ppm。此外,将其用于检测10种不同挥发性有机物,结果显示除了对甲苯、异戊醇、异丁醛、乙酸乙酯有很弱的敏感信号外,对正己烷有着明显的响应信号,而对其他挥发性有机物没有响应,由此表明该传感器对正己烷具有良好的选择性。传感器使用寿命研究结果发现其具有良好的稳定性及使用寿命。The MoS_(2)/Bi_(2)S_(3) composite nanomaterials were successfully prepared by hydrothermal method and used as sensitive materials for the detection of n-hexane by cataluminescence(CTL)method.The results showed that the MoS_(2) modification can effectively enhance the CTL properties of Bi_(2)S_(3),and the sensor has high sensitivity,good selectivity,fast response and recovery for n-hexane with a response time of 3 s and a recovery time of 16 s.In the concentration range of 12~480 ppm,the CTL signal intensity showed a good linear relationship with the n-hexane concentration:y=909.18x+1533(R2=0.9865),and the detection limit was 1.81 ppm.In addition,it was used for the detection of 10 VOCs,and the results showed that it has a significant response signal for hexane,while a weak sensitive signal for toluene,isoamyl alcohol,isobutyraldehyde and ethyl acetate,and no response for others,indicating that the sensor has good selectivity for n-hexane.The lifetime study found that the sensor has good stability and longevity.

关 键 词：传感器 正己烷检测 催化发光 MoS_(2)/Bi_(2)S_(3)复合材料 

分 类 号：O657.3[理学—分析化学]