MnOx纳米材料的合成及其在染料废水处理中的应用

Synthesis of MnOx Nanomaterials and Its Application in Treatment of Dye Wastewater

利用乙醇还原高锰酸钾制得纳米锰氧化物,借助能谱分析(EDS)和扫描电镜(SEM)对产物的晶相及形貌进行了表征.并以锰氧化物为吸附剂,研究了其对亚甲基蓝的动力学、吸附平衡的影响.结果表明:所制得的锰氧化物为无规则状纳米颗粒,吸附平衡更符合Langmuir等温模型,最大吸附量为228.31mg·g-1.

Nano-manganese dioxide has been prepared by reduction of potassium permanganate with ethanol as re- ductant, and the structure of the as-prepared product has been characterized by energy disperse spectroscopy （EDS） and scanning electron microscopy（SEM）. The nano materials were used as adsorbent to study the kinetics and ad- sorption equilibrium for adsorption of methylene blue. The results showed that the product was irregular-shaped nanoparticles; the adsorption equilibrium was more in line with the Langmuir isotherm model; and the maximum -1 adsorption capacity was 228.31 mg g