CAJ | 학술논문

　　系统研究了水钠锰矿在微波的作用下催化降解亚甲基蓝（MB）的效果和影响因素，并结合X射线衍射技术（XRD）、傅里叶变换红外光谱分析（FTIR）、紫外-可见分光光谱（Uv-vis）等技术，深入探讨了该反应体系的作用机理。结果表明：水钠锰矿（δ-MnO2型锰矿物）是一种优良的微波催化剂，在功率400 W和酸性的条件下，微波辅助0.1 g水钠锰矿催化降解50 mL浓度为500 mg/L的亚甲基蓝30 min再静置5 h后，去除率可达到99.7%；体系的作用机理是，微波诱导氧化水钠锰矿，可产生活性氧化物MnO4?，进而将体系中的亚甲基蓝氧化分解。
　　계통연구료수납맹광재미파적작용하최화강해아갑기람（MB）적효과화영향인소，병결합X사선연사기술（XRD）、부리협변환홍외광보분석（FTIR）、자외-가견분광광보（Uv-vis）등기술，심입탐토료해반응체계적작용궤리。결과표명：수납맹광（δ-MnO2형맹광물）시일충우량적미파최화제，재공솔400 W화산성적조건하，미파보조0.1 g수납맹광최화강해50 mL농도위500 mg/L적아갑기람30 min재정치5 h후，거제솔가체도99.7%；체계적작용궤리시，미파유도양화수납맹광，가산생활성양화물MnO4?，진이장체계중적아갑기람양화분해。
The influence of reaction time,system pH and dosage of catalyst on degradation of methylene blue in water by microwave induced oxidation of Birrnessite was studied. Reaction mechanism was determined based on powder X-ray diffraction (XRD),infrared spectroscopy (IR) and UV-visible spectroscopy (Uv-vis). The optimum reaction conditions were:400 W microwave irradiatione of 50 mL 500 mg/L methylene blue solution with 0.1 g Birnessite for 30 min and static adsorption for 5h,achieving degradation efficiency of 99.7%. Birnessite was oxidized to form reactive MnO4? by microwave irradiation,which degraded MB into small molecules.