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首页> 外文期刊>Journal of nano research >Surface Modification of Synthesized Layered Double Hydroxide [LDH] for Methylene Blue Dye Removal in Textile Industry via Photocatalytic Activity under Visible Light
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Surface Modification of Synthesized Layered Double Hydroxide [LDH] for Methylene Blue Dye Removal in Textile Industry via Photocatalytic Activity under Visible Light

机译：在可见光下通过光催化活性对合成层状双氢氧化物[LDH]进行表面改性以去除纺织工业中的亚甲基蓝染料

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摘要

Layered double hydroxides (abbreviated as LDHs) are one of the nano-ordered layered compounds. The importance of layered compound is based on their ability to retain chemical species with electrical charges compatible to those of the layers. In this study we have reported the synthesis of nano-sized layered double hydroxide (LDH) by co-precipitation method using two different surfactants as cetyl trimethyl ammonium bromide (CTAB) and octadecyl trimethyl ammonium bromide (ODTMA) having different critical micelle concentration (CMC) / chain length and its comparative results on calcined surface modified LDH (CS-LDH). The structure of surface modified layered double hydroxide (CS-LDH) synthesized is unique and has important advantages to the photocatalytic activity. LDH has significant number of application due to their structural, chemical properties etc., these compounds can be used as catalyst, adsorbents, anion exchanger. The photocatalytic activity of prepared surface modified CS-LDH was tested on degradation of the methylene blue (MB) dye in an aqueous solution. The surface characteristics of LDH and CS-LDH were examined using Energy Dispersive X-ray (EDX), Scanning Electron Microscopy (SEM), Xray diffraction (XRD) and UV-Visible spectrophotometer for Photocatalytic activity under visible light using MB dye. It was observed that highly exfoliated and basal spacing in CS-LDH-ODTMA which enhanced photocatalytic activity (Approx. 60% degradation) than that of comparison to CS-LDH-CTAB (Approx. 32% degradation).
机译：层状双氢氧化物（缩写为LDH）是纳米级层状化合物之一。层状化合物的重要性是基于它们以与层的电荷相容的电荷保留化学物质的能力。在这项研究中，我们报道了使用两种不同的表面活性剂，例如十六烷基三甲基溴化铵（CTAB）和十八烷基三甲基溴化铵（ODTMA），通过不同的临界胶束浓度（CMC），通过共沉淀法合成纳米级双氢氧化物（LDH）。 ）/链长及其在煅烧表面改性LDH（CS-LDH）上的比较结果。合成的表面改性层状双氢氧化物（CS-LDH）的结构独特，对光催化活性具有重要优势。 LDH由于其结构，化学性质等而具有广泛的用途，这些化合物可用作催化剂，吸附剂，阴离子交换剂。测试了制备的表面改性CS-LDH的光催化活性，以研究亚甲基蓝（MB）染料在水溶液中的降解情况。使用能量色散X射线（EDX），扫描电子显微镜（SEM），X射线衍射（XRD）和紫外可见分光光度计检查LDH和CS-LDH的表面特性，以MB染料在可见光下的光催化活性。观察到，与CS-LDH-CTAB相比，CS-LDH-ODTMA的高度剥落和基底间距增强了光催化活性（约60％的降解），而CS-LDH-CTAB的底基间距（约32％的降解）增强了光催化活性。

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  • 来源
    《Journal of nano research》 |2017年第2017期|135-147|共13页
  • 作者

    Gohatre Omdeo K.; Rane Ajay Vasudeo; Kanny Krishnan; Abitha V. K.; Samarth Nikesh; Thomas Sabu; Mishra Satyendra;

  • 作者单位

    North Maharashtra Univ, Univ Inst Chem Technol, Jalgaon 425001, Maharashtra, India;

    Durban Univ Technol, Dept Mech Engn, Composite Res Grp, ZA-4001 Durban, South Africa;

    Durban Univ Technol, Dept Mech Engn, Composite Res Grp, ZA-4001 Durban, South Africa;

    Mahatma Gandhi Univ, Ctr Nanosci & Nanotechnol, Sch Chem Sci & Int & Interuniv, Kottayam, Kerala, India;

    Inst Chem Technol, Dept Polymer & Surface Engn, Mumbai 400019, Maharashtra, India;

    Mahatma Gandhi Univ, Ctr Nanosci & Nanotechnol, Sch Chem Sci & Int & Interuniv, Kottayam, Kerala, India;

    North Maharashtra Univ, Univ Inst Chem Technol, Jalgaon 425001, Maharashtra, India;

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  • 关键词

    Layered double hydroxide (LDH); Surfactants; Photocatalytic activity; Dye removal;

    机译：层状双氢氧化物（LDH）;表面活性剂;光催化活性;染料去除;

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