Application of Graphene Sensor Technology in Monitoring Wastewater from Vehicle Maintenance
The application and performance of a graphene-TiO2 composite sensor in the detection of lead ions(Pb2+)in wastewater generated from vehicle maintenance activities were investigated.The sensor's performance was systematically evaluated through various tests,including sensitivity,selectivity,stability,linear range,repeatability,reproducibility,response time,recovery time,and environmental adaptability.The experimental results demonstrated that the sensor exhibits high sensitivity and a strong linear response within the concentration range of 0.005 mg/L to 50 mg/L,with a detection limit as low as 0.005 mg/L.The sensor showed superior selectivity for lead ions over other metal ions and maintained excellent stability during extended usage.Furthermore,the sensor's response and recovery times were rapid,making it highly suitable for continuous monitoring applications.The sensor also displayed robust performance under different temperature and humidity conditions,indicating a high level of environmental adaptability.These findings provide a solid theoretical foundation for the broader application of graphene-based composite materials in water quality monitoring.
graphene-TiO2 composite sensorlead ion monitoringperformance evaluationvehicle maintenance wastewater
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