β-MnO2纳米棒自组装花球的制备及催化性能研究

• 作 者: 王建芳 杨和平 王君 徐杰 任玉肖
• 机 构: 商洛学院化学工程与现代材料学院陕西省尾矿资源综合利用重点实验室,陕西锌业有限公司,
• 出 处: 化工新型材料
• 发表日期: 2017年03期
• 关键词: 纳米棒 二氧化锰 自组装 催化性质

以高锰酸钾为锰源,利用水热合成法在氢氟酸(HF)溶液中制备了β-MnO_2纳米棒自组装花球。系统研究了HF用量、水热反应温度及反应时间对产物结构和形貌的影响。通过X射线衍射(XRD)、环境扫描电镜(SEM)、紫外-可见分光光度计(UV-Vis)等测试技术对所得产物进行了分析和表征。控制HF用量为2mL,150℃水热反应24h得到了纳米棒自组装而成的β-MnO_2花球,大小分布均匀,尺寸约为7μm。所得产物在降解亚甲基蓝溶液的过程中表现出优越的催化特性。

Using potassium permanganate as manganese source, β-MnO 2 nanorods self-assembled flower balls were prepared by hydrothermal method in hydrofluoric acid (HF) solution. The effect of HF dosage, hydrothermal reaction temperature and reaction time on the structure and morphology of the product was systematically investigated. The obtained product was analyzed and characterized by XRD, SEM and UV-Vis. Control of the amount of HF was 2mL, hydrothermal reaction at 150 ℃ 24h obtained nanorods self-assembled β-MnO 2 flower ball, size distribution, the size of about 7μm. The resulting product shows superior catalytic properties in the degradation of methylene blue solution.