通过掺入Ag掺杂的ZnO纳米颗粒，使用聚合物纳米复合材料增强的染料去除能力：合成和表征。,Journal of Hazardous Materials

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通过掺入Ag掺杂的ZnO纳米颗粒，使用聚合物纳米复合材料增强的染料去除能力：合成和表征。
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2019-03-25 , DOI: 10.1016/j.jhazmat.2019.03.105
Gouthaman A ₁ , Auslin Asir J ₁ , Gnanaprakasam A ₁ , Sivakumar V M ₁ , Thirumarimurugan M ₁ , Mohamed A Riswan Ahamed ₂ , R S Azarudeen ₁

Affiliation

研究一种简便的方法来合成一系列新的高度多孔的聚乙二醇（PEG）和Ag-ZnO（AZO）接枝的聚苯胺（PANI）纳米复合材料（PAPE / AZO），以研究亮绿色染料（BG）的吸附行为。改变AZO中的Ag（1、3和5％）的组成以评估双金属氧化物结合的影响。通过FTIR，XRD，SEM和TEM分析对纳米复合材料进行了表征。通过各种参数变化来评估PAPE / AZO的吸附性能。接触时间，pH，温度，染料浓度和吸附剂用量。在0.075 g吸附剂量，70 mg L-1染料浓度，1％AZO和pH 2的最佳条件下，最高吸附容量为94.46 mg g-1。纳米复合材料的BET和BJH分析证实了较高的表面积和孔体积，而较少的AZO则支持PAPE增强了染料的去除。Langmuir等温线模型符合平衡条件，表明纳米复合材料表面上活性位的均匀分布。吸附动力学模型随后呈现出化学吸附过程的拟二级反应。从结果来看，很明显，PAPE / AZO可以用作处理实时工业染料废水的潜在核心物质。

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Enhanced dye removal using polymeric nanocomposite through incorporation of Ag doped ZnO nanoparticles: Synthesis and characterization.

A facile method was approached to synthesize a new series of highly porous polyethylene glycol (PEG) and Ag-ZnO (AZO) grafted polyaniline (PANI) nanocomposites (PAPE/AZO) for investigation of the adsorption behavior of brilliant green dye (BG). The compositions of Ag (1, 3 and 5%) in AZO were varied to assess the influence of bimetallic oxide incorporation. The nanocomposites were characterized by FTIR, XRD, SEM and TEM analyses. The adsorption performance of the PAPE/AZO was assessed by various parametric changes viz. contact time, pH, temperature, concentration of the dye and adsorbent dosage. The highest adsorption capacity of 94.46 mg g-1 was achieved at the optimum conditions of 0.075 g adsorbent dosage, 70 mg L-1 dye concentration, 1% AZO and pH 2. BET and BJH analyses of the nanocomposite confirmed the higher surface area and pore volume with lower amount of AZO that supported PAPE for enhanced dye removal. The Langmuir isotherm model fits the equilibrium conditions indicating a homogeneous distribution of active sites on the surface of the nanocomposite. Adsorption kinetic model ensued pseudo second order exhibiting chemisorption process. From the results, it is obvious that PAPE/AZO can be used as a potential core substance for treating real-time industrial dye effluents.

更新日期：2019-03-25

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