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三维花状层状双金属氢氧化物的制备及其对甲基橙的去除

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龚娴, 杨陈凯, 马若男, 章萍. 三维花状层状双金属氢氧化物的制备及其对甲基橙的去除[J]. 环境化学, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
引用本文: 龚娴, 杨陈凯, 马若男, 章萍. 三维花状层状双金属氢氧化物的制备及其对甲基橙的去除[J]. 环境化学, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
shu
GONG Xian, YANG Chenkai, MA Ruonan, ZHANG Ping. Synthesis of 3D flower-like hierarchical layered double hydroxide microspheres and removal of methyl orange[J]. Environmental Chemistry, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
Citation: GONG Xian, YANG Chenkai, MA Ruonan, ZHANG Ping. Synthesis of 3D flower-like hierarchical layered double hydroxide microspheres and removal of methyl orange[J]. Environmental Chemistry, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
shu

三维花状层状双金属氢氧化物的制备及其对甲基橙的去除

  • 1.

    南昌大学资源环境与化工学院鄱阳湖环境与资源利用教育部重点实验室, 南昌, 330031;

  • 2.

    江西省南昌市环境监测站, 南昌, 330038

  • 基金项目:

    国家自然科学基金（214167014，21767018），江西省杰出青年人才项目（20171BCB23017）和中国博士后科学基金（2017M612164）资助.

Synthesis of 3D flower-like hierarchical layered double hydroxide microspheres and removal of methyl orange

  • 1.

    Key Laboratory of Environment and Resource Utilization of Poyang Lake Ministry of Education, School of Resource Environment and Chemical Engineering, Nanchang University, Nanchang, 330031, China;

  • 2.

    Environmental Monitoring Station of Nanchang City, Jiangxi Province, Nanchang, 330038, China

  • Fund Project: Supported by the National Natural Science Foundation of China (214167014, 21767018), Jiangxi Province Outstanding Young Talents Funding Project (20171BCB23017) and China Post-Doctoral Science Foundation (2017M612164).

  • 摘要: 以阴离子表面活性剂十二烷基硫酸钠（SDS）为模板剂，制备三维花状LDH（3D-LDH）.借助X射线衍射仪（XRD）、傅立叶变换红外光谱仪（FT-IR）等表征手段确定最佳合成SDS浓度，并将最佳条件下产物进行热重-差热分析（TG-DTA）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）分析.此外，将3D-LDH作为吸附剂，研究其对50 mg·L-1甲基橙（MO）的去除性能及机制.结果表明，当SDS浓度高于0.05 mol·L-1时，可形成直径约为1.5-2 μm的花状微球.3D-LDH对MO的吸附容量为44.4 mg·g-1，吸附动力学符合准二级动力学方程.结合XPS分析，3D-LDH对MO的去除机制主要为离子交换作用.
    Abstract: Three-dimensional flower-like LDH (3D-LDH) microspheres were successfully synthesized using Sodium dodecyl sulfate (SDS) as the template. The optimal SDS concentration was determined by XRD and FT-IR. Under the optimal condition, the products were characterized by TG-DTA, SEM and TEM. The removal performance and sorption mechanism of Methyl orange (MO) by as-prepared 3D-LDH were investigated subsequently. The results showed that the flower-like microspheres with the diameters of 1.5-2 μm were formed when the SDS concentration was higher than 0.05 mol·L-1. The maximum adsorption capacity of MO by 3D-LDH was 44.4 mg·g-1, and the adsorption kinetics fit the pseudo second-order kinetic equation. The removal mechanism of MO by 3D-LDH is ion exchange according to the XPS spectra.
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  • 收稿日期:  2018-08-04
  • 刊出日期:  2019-06-15
龚娴, 杨陈凯, 马若男, 章萍. 三维花状层状双金属氢氧化物的制备及其对甲基橙的去除[J]. 环境化学, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
引用本文: 龚娴, 杨陈凯, 马若男, 章萍. 三维花状层状双金属氢氧化物的制备及其对甲基橙的去除[J]. 环境化学, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
shu
GONG Xian, YANG Chenkai, MA Ruonan, ZHANG Ping. Synthesis of 3D flower-like hierarchical layered double hydroxide microspheres and removal of methyl orange[J]. Environmental Chemistry, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
Citation: GONG Xian, YANG Chenkai, MA Ruonan, ZHANG Ping. Synthesis of 3D flower-like hierarchical layered double hydroxide microspheres and removal of methyl orange[J]. Environmental Chemistry, 2019, 38(6): 1396-1402. doi: 10.7524/j.issn.0254-6108.2018080404
shu

三维花状层状双金属氢氧化物的制备及其对甲基橙的去除

  • 1.  南昌大学资源环境与化工学院鄱阳湖环境与资源利用教育部重点实验室, 南昌, 330031;
  • 2.  江西省南昌市环境监测站, 南昌, 330038
  • 收稿日期:  2018-08-04
基金项目:

国家自然科学基金（214167014，21767018），江西省杰出青年人才项目（20171BCB23017）和中国博士后科学基金（2017M612164）资助.

摘要: 以阴离子表面活性剂十二烷基硫酸钠（SDS）为模板剂，制备三维花状LDH（3D-LDH）.借助X射线衍射仪（XRD）、傅立叶变换红外光谱仪（FT-IR）等表征手段确定最佳合成SDS浓度，并将最佳条件下产物进行热重-差热分析（TG-DTA）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）分析.此外，将3D-LDH作为吸附剂，研究其对50 mg·L-1甲基橙（MO）的去除性能及机制.结果表明，当SDS浓度高于0.05 mol·L-1时，可形成直径约为1.5-2 μm的花状微球.3D-LDH对MO的吸附容量为44.4 mg·g-1，吸附动力学符合准二级动力学方程.结合XPS分析，3D-LDH对MO的去除机制主要为离子交换作用.

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