氮掺杂多孔石墨烯对硝基和偶氮化合物的催化还原性能——化学相关专业综合实验的设计与实践

doi:10.3866/PKU.DXHX202207082

Abstract

Abstract:

An experiment was designed for the catalytic reduction of nitro and azo compounds, which are typical contaminants found in wastewater, using carbocatalysts. N-doped holey graphene (NHG) or N-doped graphene (NG) carbocatalysts are synthesized via a hydrothermal approach using graphene oxide as a starting material. The morphology and composition of the resulting carbocatalysts are characterized using scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and N₂adsorption/desorption analysis. The catalytic efficiency of NHG or NG is evaluated via the reduction of nitro and azo compounds in wastewater in the presence of NaBH₄. The experiment teaches basic theory regarding the preparation and characterization of carbocatalysts and treatment of wastewater through catalytic reduction, and covers concepts in the fields of physical chemistry, materials chemistry, and environmental chemistry. This comprehensive experiment cultivates scientific thinking, improves research skills, and teaches practical problem-solving using chemistry knowledge.

Key words: N-doped holey graphene, Metal-free catalysis, Nitro and azo compounds, Reduction reaction, Comprehensive experiment

Jiangbo Xi, Qi Sun, Gang Wang, Wei Chen. Catalytic Reduction of Nitro and Azo Compounds over N-doped Holey Graphene: Designing and Practice of Comprehensive Experiment in Chemistry Related Disciplines[J].University Chemistry, 2023, 38(5): 220-226.

Figures/Tables 6

References 17

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Catalytic Reduction of Nitro and Azo Compounds over N-doped Holey Graphene: Designing and Practice of Comprehensive Experiment in Chemistry Related Disciplines

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