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纳米镍/镁铝水滑石/活性炭复合材料的制备及染料污水的降解

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李昌勇, 苏景裕, 谢非. 纳米镍/镁铝水滑石/活性炭复合材料的制备及染料污水的降解[J]. 环境工程学报, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
引用本文: 李昌勇, 苏景裕, 谢非. 纳米镍/镁铝水滑石/活性炭复合材料的制备及染料污水的降解[J]. 环境工程学报, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
shu
Li Changyong, Su Jingyu, Xie Fei. Synthesis of nano-Ni/MgAl-LDHs/activated carbon composite and degradation of dye wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
Citation: Li Changyong, Su Jingyu, Xie Fei. Synthesis of nano-Ni/MgAl-LDHs/activated carbon composite and degradation of dye wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
shu

纳米镍/镁铝水滑石/活性炭复合材料的制备及染料污水的降解

  • 1.

    合肥工业大学化学与化工学院, 合肥 230009

  • 基金项目:

    国家自然科学基金资助项目(21076054)

    安徽省教委自然科学基金资助项目(2010AJZR-85,2011AJZR-87)

    国家大学生创新基金(201210359034,2013CXSY327,2013CXSY366)

  • 中图分类号: X131.2

Synthesis of nano-Ni/MgAl-LDHs/activated carbon composite and degradation of dye wastewater

  • 1.

    School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China

  • Fund Project:

  • 摘要: 在超声辅助的条件下,通过共沉淀法制备了纳米镍/镁铝水滑石/活性炭复合材料(nano-Ni/MgAl-LDHs/AC),并将其用于染料的催化降解。复合材料的制备分为2个步骤,首先在真空条件下,通过共沉淀法在活性炭载体上制备镁铝水滑石(MgAl-LDHs);再通过抗坏血酸的还原作用将纳米镍沉积到MgAl-LDHs/AC表面。采用场发射扫描电子显微镜(FE-SEM)、X射线能谱分析(EDS)、X-射线衍射仪(XRD) 和傅里叶红外光谱(FT-IR)等测试方法表征了所制备样品。MgAl-LDHs分布在活性炭表面,呈现花状平板结构,粒径大小为(80±30)nm,纳米镍修饰在MgAl-LDHs/AC表面,平均粒径40 nm。所制备的复合材料对甲基橙、孔雀绿和亚甲基蓝的降解率均达到98%以上。
    Abstract: With the aid of ultrasound, a nano-nickel-modified magnesium and aluminum hydrotalcite/activated carbon composite (nano-Ni/MgAl-LDHs/AC) was prepared using a co-precipitation method and applied to the degradation of dyes. The preparation of materials involved two processes; magnesium and aluminum hydrotalcite (MgAl-LDHs) were co-precipitated at the AC in one pot, and then nano-Ni was deposited at the surface of MgAl-LDHs/AC with reduction of ascorbic acid. The present materials were characterized by field emission scanning electron microscopy (FE-SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) spectroscopy. The MgAl-LDHs were well distributed at the surface of activated carbon with an average size of (80±30)nm, and resembled flower-like plates. Nano-Ni was coated on MgAl-LDHs/AC with an average thickness of 40 nm. The degradation efficiency of methyl orange, malachite green, and methylthionine chloride all reached 98% using nano-Ni/MgAl-LDHs/AC as a catalyst.
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  • 收稿日期:  2015-03-16
  • 刊出日期:  2016-06-03
李昌勇, 苏景裕, 谢非. 纳米镍/镁铝水滑石/活性炭复合材料的制备及染料污水的降解[J]. 环境工程学报, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
引用本文: 李昌勇, 苏景裕, 谢非. 纳米镍/镁铝水滑石/活性炭复合材料的制备及染料污水的降解[J]. 环境工程学报, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
shu
Li Changyong, Su Jingyu, Xie Fei. Synthesis of nano-Ni/MgAl-LDHs/activated carbon composite and degradation of dye wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
Citation: Li Changyong, Su Jingyu, Xie Fei. Synthesis of nano-Ni/MgAl-LDHs/activated carbon composite and degradation of dye wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2309-2314. doi: 10.12030/j.cjee.201412195
shu

纳米镍/镁铝水滑石/活性炭复合材料的制备及染料污水的降解

  • 1. 合肥工业大学化学与化工学院, 合肥 230009
  • 收稿日期:  2015-03-16
基金项目:

国家自然科学基金资助项目(21076054)

安徽省教委自然科学基金资助项目(2010AJZR-85,2011AJZR-87)

国家大学生创新基金(201210359034,2013CXSY327,2013CXSY366)

摘要: 在超声辅助的条件下,通过共沉淀法制备了纳米镍/镁铝水滑石/活性炭复合材料(nano-Ni/MgAl-LDHs/AC),并将其用于染料的催化降解。复合材料的制备分为2个步骤,首先在真空条件下,通过共沉淀法在活性炭载体上制备镁铝水滑石(MgAl-LDHs);再通过抗坏血酸的还原作用将纳米镍沉积到MgAl-LDHs/AC表面。采用场发射扫描电子显微镜(FE-SEM)、X射线能谱分析(EDS)、X-射线衍射仪(XRD) 和傅里叶红外光谱(FT-IR)等测试方法表征了所制备样品。MgAl-LDHs分布在活性炭表面,呈现花状平板结构,粒径大小为(80±30)nm,纳米镍修饰在MgAl-LDHs/AC表面,平均粒径40 nm。所制备的复合材料对甲基橙、孔雀绿和亚甲基蓝的降解率均达到98%以上。

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