Zhang Yaru, Yan Xiaoxia, Chen Yifan, Deng Dongmei, He Haibo, Lei Yunyi, Luo Liqiang
Department of Chemistry, Shanghai University, Shanghai 200444, China.
Department of Physics, Shanghai University, Shanghai 200444, China.
Molecules. 2024 Apr 15;29(8):1786. doi: 10.3390/molecules29081786.
ZnO-CeO hollow nanospheres have been successfully synthesized via the hard templating method, in which CeO is used as the support skeleton to avoid ZnO agglomeration. The synthesized ZnO-CeO hollow nanospheres possess a large electrochemically active area and high electron transfer owing to the high specific surface area and synergistic effect of ZnO and CeO. Due to the above advantages, the resulting ZnO-CeO hollow spheres display high sensitivities of 1122.86 μA mM cm and 908.53 μA mM cm under a neutral environment for the selective detection of dopamine and uric acid. The constructed electrochemical sensor shows excellent selectivity, stability and recovery for the selective analysis of dopamine and uric acid in actual samples. This study provides a valuable strategy for the synthesis of ZnO-CeO hollow nanospheres via the hard templating method as electrocatalysts for the selective detection of dopamine and uric acid.
通过硬模板法成功合成了ZnO-CeO中空纳米球，其中CeO用作支撑骨架以避免ZnO团聚。由于高比表面积以及ZnO和CeO的协同效应，合成的ZnO-CeO中空纳米球具有大的电化学活性面积和高电子转移率。由于上述优点，所得的ZnO-CeO中空球在中性环境下对多巴胺和尿酸的选择性检测显示出高灵敏度，分别为1122.86 μA mM cm和908.53 μA mM cm。所构建的电化学传感器对实际样品中多巴胺和尿酸的选择性分析显示出优异的选择性、稳定性和回收率。本研究为通过硬模板法合成ZnO-CeO中空纳米球作为选择性检测多巴胺和尿酸的电催化剂提供了一种有价值的策略。
