孙柏,唐卓,程运明,张杰,王云.基于 MoS2/Bi2S3 复合纳米材料的正己烷催化发光传感器[J].安徽建筑大学学报,2022,30(3):54-61 |
基于 MoS2/Bi2S3 复合纳米材料的正己烷催化发光传感器 |
Cataluminescence Sensor for N-Hexane Based on MoS2/Bi2S3 Composite Nanomaterials |
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DOI: |
中文关键词: 传感器 正己烷检测 催化发光 MoS2/Bi2S3 复合材料 |
英文关键词: sensor n-hexane cataluminescence MoS2/Bi2S3 composites |
基金项目: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) |
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中文摘要: |
采用水热法成功制备了 MoS2/Bi2S3 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 Bi2S3 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+1 533(R2=0.986 5),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。 |
英文摘要: |
The MoS2/Bi2S3 composite nanomaterials were successfully prepared by hydrothermal method and used as sensitive materialsfor the detection of n-hexane by cataluminescence (CTL) method. The results showed that the MoS2 modification can effectivelyenhance the CTL properties of Bi2S3,and the sensor has high sensitivity,good selectivity,fast response and recovery for n-hexanewith 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 agood linear relationship with the n-hexane concentration:y=909.18x+1 533(R2=0.986 5),and the detection limit was 1.81 ppm. Inaddition,it was used for the detection of 10 VOCs,and the results showed that it has a significant response signal for hexane,while aweak sensitive signal for toluene,isoamyl alcohol,isobutyraldehyde and ethyl acetate,and no response for others,indicating that thesensor has good selectivity for n-hexane. The lifetime study found that the sensor has good stability and longevity. |
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