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Vein-Like Ni-BTC@Ni3S4 with Sulfur Vacancy and Ni3+ Fabricated In Situ Etching Vulcanization Strategy for an Electrochemical Sensor of Dopamine
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-03-02 , DOI: 10.1021/acsami.2c22586
Baitong Niu 1 , Minmin Liu 1 , Xinlou Li 1 , Hongxu Guo 1 , Zhangxu Chen 2
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-03-02 , DOI: 10.1021/acsami.2c22586
Baitong Niu 1 , Minmin Liu 1 , Xinlou Li 1 , Hongxu Guo 1 , Zhangxu Chen 2
Affiliation
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In this study, a novel Ni-BTC@Ni3S4 composite was fabricated by solvothermal reaction using an in situ etching vulcanization strategy and characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and Brunauer–Emmett–Teller (BET) analyses. The existence of a sulfur vacancy and Ni3+ in the as-prepared vein-like Ni-BTC@Ni3S4 greatly promoted the electrochemical sensing activity of the materials. Herein, a simple electrochemical sensor (Ni-BTC@Ni3S4/CPE) has been fabricated and used for the detection of dopamine (DA). The current signal of the Ni-BTC@Ni3S4/CPE-modified electrode was linear with the concentration of DA in the range of 0.05–750 μM (R2 = 0.9995) with a sensitivity of 560.27 μA·mM–1·cm–2 and a detection limit of 0.016 μM. At the same time, the sensor has good stability and anti-interference ability. This study could provide a new idea and strategy for the structural regulation of composite electrode-modified materials and sensitive sensing detection of small biological molecules.
中文翻译：
具有硫空位和 Ni3+ 的脉状 Ni-BTC@Ni3S4 原位蚀刻硫化策略用于多巴胺电化学传感器
在本研究中，采用原位蚀刻硫化策略通过溶剂热反应制备了一种新型 Ni-BTC@Ni 3 S 4复合材料，并通过 X 射线衍射 (XRD)、傅里叶变换红外光谱 (FT-IR)、扫描电子显微镜 (SEM)、高分辨率透射电子显微镜 (HRTEM)、X 射线光电子能谱 (XPS)、电子顺磁共振 (EPR) 和 Brunauer–Emmett–Teller (BET) 分析。所制备的脉状Ni-BTC@Ni 3 S 4中硫空位和Ni 3+的存在极大地促进了材料的电化学传感活性。在此，一个简单的电化学传感器（Ni-BTC@Ni 3 S 4/CPE) 已被制造并用于检测多巴胺 (DA)。Ni-BTC@Ni 3 S 4 /CPE修饰电极的电流信号在0.05–750 μM（R 2 = 0.9995）范围内与DA浓度呈线性关系，灵敏度为560.27 μA·mM –1 · cm –2，检测限为 0.016 μM。同时传感器具有良好的稳定性和抗干扰能力。该研究可为复合电极修饰材料的结构调控和生物小分子的灵敏传感检测提供新的思路和策略。
更新日期：2023-03-02
中文翻译：
具有硫空位和 Ni3+ 的脉状 Ni-BTC@Ni3S4 原位蚀刻硫化策略用于多巴胺电化学传感器
在本研究中，采用原位蚀刻硫化策略通过溶剂热反应制备了一种新型 Ni-BTC@Ni 3 S 4复合材料，并通过 X 射线衍射 (XRD)、傅里叶变换红外光谱 (FT-IR)、扫描电子显微镜 (SEM)、高分辨率透射电子显微镜 (HRTEM)、X 射线光电子能谱 (XPS)、电子顺磁共振 (EPR) 和 Brunauer–Emmett–Teller (BET) 分析。所制备的脉状Ni-BTC@Ni 3 S 4中硫空位和Ni 3+的存在极大地促进了材料的电化学传感活性。在此，一个简单的电化学传感器（Ni-BTC@Ni 3 S 4/CPE) 已被制造并用于检测多巴胺 (DA)。Ni-BTC@Ni 3 S 4 /CPE修饰电极的电流信号在0.05–750 μM（R 2 = 0.9995）范围内与DA浓度呈线性关系，灵敏度为560.27 μA·mM –1 · cm –2，检测限为 0.016 μM。同时传感器具有良好的稳定性和抗干扰能力。该研究可为复合电极修饰材料的结构调控和生物小分子的灵敏传感检测提供新的思路和策略。
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