Dual-Modal Photoelectrochemical and Visualized Detection of Copper Ions.
Dual-Modal Photoelectrochemical and Visualized Detection of Copper Ions.
复制标题
双模态光电化学和铜离子的可视化检测
DOI：
10.1021/acsomega.1c06673
复制
发表时间：
2022-02-15
期刊：
影响因子：
4.1
通讯作者：
Yang H
中科院分区：
文献类型：
--
作者：
Zhang N;Dai D;Hu P;Guo S;Yang H
铜是现代工业中广泛使用的重金属之一，并且由于铜离子（Cu 2+）的高溶解度而容易释放到环境中。它在水中的渗透和沿食物链的沿着积累对人类健康构成严重威胁。因此，探索一种新的、简便的、灵敏的检测方法具有重要意义。基于CdS量子点的光电转换过程和WO 3纳米纤维的电致变色特性，构建了一种双模式光电化学（PEC）和可视化的Cu 2+检测平台。电致变色WO 3纳米纤维作为Cu 2+浓度的显示器，其颜色变化可以通过肉眼直接观察到，而PEC信号为进一步分析提供了准确的数据。该体系对Cu ~（2+）的检测范围为1 × 10 ~（-5）~ 5 × 10 ~（-4）M，检出限为3.2 × 10 ~（-6）M。双模态分析为信号读出提供了更多选择，增强了量化可靠性，适用于各种应用场景，特别是现场调查。该协议提供了一个原型的快速和可靠的检测Cu 2+的浓度，是有前途的其他环境污染物。
Copper is one of the extensively utilized heavy metals in modern industry and can be easily released into the environment due to high solubility of copper ions (Cu2+). Its percolation in water and accumulation along the food chain pose a serious threat to human health. Hence, it is of great significance to explore a novel, facile, and sensitive detection method for Cu2+. Based on the intriguing photo-to-electricity conversion process of CdS QDs, as well as desirable electrochromic property of WO3 NFs, a dual-modal photoelectrochemical (PEC) and visualized detection platform for Cu2+ is fabricated. The electrochromic WO3 NFs act as a display for the Cu2+ concentration, of which the color change could be observed directly by the naked eye, while the PEC signal provides accurate data for further analysis. In this work, a sensitive detection of Cu2+ in the range of 1 × 10–5 to 5 × 10–4 M is achieved, with a detection limit of 3.2 × 10–6 M. The dual-modal analysis gives more choices for signal readouts with enhanced quantification reliability, which is adaptive for diverse application scenarios, especially for on-site investigation. This protocol offers a prototype for quick and reliable detection of the Cu2+ concentrations, and is promising for other environmental pollutants.
登录
查看更多内容
影响因子：
9.5
作者：
Dong, Wenxia;Li, Zhongping;Wen, Guangming
通讯作者：
Wen, Guangming
影响因子：
6.7
作者：
Wang, Guang-Li;Xu, Jing-Juan;Chen, Hong-Yuan
通讯作者：
Chen, Hong-Yuan
DOI：
10.3390/molecules26154461
发表时间：
2021-07-24
期刊：
Molecules (Basel, Switzerland)
影响因子：
--
作者：
Manousi N;Kabir A;Furton KG;Zachariadis GA;Anthemidis A
通讯作者：
Anthemidis A
使用 3D 打印微反应器装置快速检测 AFP 的双模式视觉/光电化学一体化生物测定
影响因子：
12.6
作者：
Li, Xin;Pan, Xinmeng;Gong, Jingming
通讯作者：
Gong, Jingming
影响因子：
6.6
作者：
Fu, Chaopeng;Foo, Ceyao;Lee, Pooi See
通讯作者：
Lee, Pooi See