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中文摘要：
以鳞片石墨和聚乙烯醇为主要原料制备了改性膨胀石墨，并采用SEM、EDS、FTIR对其进行了表征。通过单因素条件试验，研究了微波诱导改性膨胀石墨／1420。催化氧化处理刚果红废水工艺，探讨了各种因素对废水脱色效果的影响。结果表明，微波-改性膨胀石墨-H2O2 能高效快速降解废水中的刚果红，在50mL初始pH为3、质量浓度为20mg／L的刚果红废水中，改性膨胀石墨3g／L、微波辐射9min、微波功率259W、H2O2用量为2mL/L的较佳处理工艺条件下，刚果红脱色率达到了98．85％，三者产生了协同效应，且脱色效果优于微波-膨胀石墨-H2O2，反应符合一级反应动力学规律。
英文摘要：
Modified expanded graphite was prepared with flake graphite and polyvinyl alcohol （PVA） as the main raw mate- rials, and characterized by SEM, EDS and FTIR. Degradation process for Congo red （CR） wastewater was studied with modi- fied expanded grahite-H2O2 under microwave radiation by single factor experiments. Effect of different factors and synergetic effect on degradation of CR were discussed. Results showed that CR was degraded rapidly and efficiently. For 50mL solution with pH of 3 and CR concentration of 20 mg/L, the decoloration rate of CR was up to 98.85% under the optimal reaction conditions of microwave radiation power input of 259 W, microwave radiation time of 9rain, modified expanded graphite mass of 3 g/L and H2O2 dosage of 2 mL/L. Degradation process of CR wastewater by microwave, hydrogen peroxide and modified expanded graphite has synergetic effect, which are better than that of expanded graphite, with kinetic reaction satis- factory to pseudo-first order.
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