材料科学
介电谱
傅里叶变换红外光谱
拉曼光谱
电极
扫描电子显微镜
光电流
循环伏安法
电化学气体传感器
纳米材料
石墨烯
分析化学(期刊)
化学工程
核化学
电化学
纳米技术
化学
光电子学
色谱法
光学
物理化学
复合材料
物理
工程类
作者
Ganjar Fadillah,Qonita Awliya Hanif,Rahmat Hidayat,Wiyogo Prio Wicaksono,Badra Sanditya Rattyananda,Ari Handono Ramelan,Sayekti Wahyuningsih
标识
DOI:10.1016/j.inoche.2023.111428
摘要
Carbon-nanomaterials-based photoelectrochemical sensors have received attention and become promising methods in analytical techniques due to their unique benefits, such as easy fabrication, high sensitivity, and selectivity. Herein, the rGO/CuI-modified glassy carbon electrode (rGO/CuI-GCE) has been fabricated to enhance the sensitivity detection of chloramphenicol (CAP). The rGO/CuI was synthesized using the co-precipitation method, while the rGO/CuI-GCE was fabricated using a dropping technique on the GCE surface. The properties of rGO/CuI were studied by x-ray diffraction (XRD), fourier transform infrared (FTIR), raman spectroscopy, UV–Vis spectroscopy, electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). Furthermore, using a three-standard electrode, the photoelectrochemistry of rGO/CuI-GCE was studied by observing the photocurrent response to time (i vs t). Under optimal conditions, the rGO/CuI-GCE sensor presented significant CAP detection performance in the 0–40 uM with a detection LOD of 8.6 nM (S/N = 3). The sensor also has good stability and selectivity. In addition, the developed sensor was successfully applied to detect CAP in fresh milk and urine with a good % recovery value. The developed photoelectrochemical sensor based on rGO/CuI-modified GCE offers a promising approach for enhancing the sensitivity detection of CAP and others.
科研通智能强力驱动
Strongly Powered by AbleSci AI