| 摘要: |
| 将炭黑（CB）纳米粒子与类石墨相氮化碳（g-C3N4）混合,然后将金纳米粒子（Au NPs）掺杂其中,形成一种新型g-C3N4/CB/AuNPs复合纳米材料,用于修饰玻碳电极.通过扫描电子显微镜（SEM）对复合材料的形貌进行了表征.实验结果表明：g-C3N4/CB/AuNPs对硫酸联氨（N2H4·H2SO4）的电化学氧化呈现极好的电催化性能.硫酸联氨的氧化电流与其物质的量浓度在2.5×10-5~1.5×10-3 mol·L-1线性范围内呈良好的线性关系,检测限为1.6 μmol·L-1（信噪比S/N=3）. |
| 关键词: 炭黑（CB） 类石墨相氮化碳（g-C3N4） 金纳米粒子（Au NPs） 电催化 硫酸联氨（N2H4·H2SO4） |
| DOI：10.3969/J.ISSN.1000-5137.2023.01.007 |
| 分类号:O646 |
| 基金项目: |
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| Preparation of g-C3N4/CB/AuNPs modified glassy carbon electrode and its application for electrochemical determination of hydrazine sulfate |
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ZHOU Ling, HE Yan, ZHUANG Chen, ZHU Ningning
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College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| A novel composite nanomaterial（g-C3N4/CB/AuNPs） was obtained by mixing carbon black（CB）nanoparticles with graphitic carbon nitride（g-C3N4） and gold nanoparticles （AuNPs）. The g-C3N4/CB/AuNPs nanocomposit was prepared and used for the modification of the glassy carbon electrodes. The morphology of the composite was characterized by scanning electron microscope（SEM）. It was found that g-C3N4/CB/AuNPs nanocomposit exhibited excellent electrocatalytic performance for the electrochemical oxidation of hydrazine sulfate（N2H4·H2SO4）. The oxidation currents for hydrazine sulfate are linear to its molar concentration in the range of 2.5×10-5-1.5×10-3 mol·L-1. The detection limit was 1.6 μmol·L-1（at a single-to noise ratio（S/N）of 3）. |
| Key words: carbon black（CB） graphitic carbon nitride（g-C3N4） Au nanoparticles（Au NPs） electrocatalysis hydrazine sulfate（N2H4·H2SO4） |
