The current research presents the fabrication of mordenite nanoparticles via a hydrothermal technique using low-cost mixed organic templates. The utilized templates such as (polyethylene glycol 200 and glycerol), (polyethylene glycol 200 and ethylene glycol), (ethylene glycol and glycerol), and (ethylene glycol, polyethylene glycol 200, and glycerol) were named PEG-GL, PEG-EG, EG-GL, and EG-PEG-Gl, respectively. Characterization of the fabricated nanoparticles was carried using FE-SEM, HR-TEM, FT-IR, XRD, and BET techniques. XRD confirmed that the average crystallite sizes of PEG-GL, PEG-EG, EG-GL, and EG-PEG-Gl were 86.78, 38.75, 98.70, and 45.96, respectively. Also, HR-TEM confirmed that the average diameters of the previous samples were 80.42, 35.50, 92.85, and 44.73, respectively. In addition, FE-SEM confirmed that the previous samples consist of (spherical and cup), (tree leaves and cylindrical rods), (cylindrical rods and spherical), and (spherical and rods) shapes, respectively. Besides, characteristic vibrations of mordenite such as internal symmetric, external symmetric, internal asymmetric, external asymmetric, and bending were detected using FT-IR at 690–705, 780–795, 1025–1030, 1222–1235, and 447–464 cm⁻¹, respectively. The PEG-EG sample efficiently removed Pb(II) ions from aqueous media where 17.40 mg/g is the capacity value. Pore diffusion, intra-particle diffusion, pseudo-first-order, and liquid film diffusion kinetic models successfully described the removal of Pb(II) ions in the view of the kinetic study. In addition, Langmuir isotherm successfully described the removal of Pb(II) ions in the view of the equilibrium study. Moreover, the exothermic and chemisorption properties of the removal of Pb(II) ions were confirmed in the view of the thermodynamic study. The capacity of the PEG-EG sample or % removal of Pb(II) ions was not greatly affected after five desorption-adsorption cycles.

中文翻译：

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丝光沸石纳米粒子的快速合成，用于从水性介质中有效去除Pb（II）离子

当前的研究提出了使用低成本混合有机模板通过水热技术制备丝光沸石纳米粒子。所使用的模板例如（聚乙二醇200和甘油），（聚乙二醇200和乙二醇），（乙二醇和甘油）和（乙二醇，聚乙二醇200和甘油）分别命名为PEG-GL，PEG-EG ，EG-GL和EG-PEG-G1。使用FE-SEM，HR-TEM，FT-IR，XRD和BET技术对制备的纳米颗粒进行表征。XRD证实PEG-GL，PEG-EG，EG-GL和EG-PEG-G1的平均微晶尺寸分别为86.78、38.75、98.70和45.96。此外，HR-TEM确认先前样品的平均直径分别为80.42、35.50、92.85和44.73。此外，FE-SEM确认先前的样品分别由（球形和杯形），（树叶和圆柱形棒），（圆柱形和球形）和（球形和棒）形状组成。此外，使用FT-IR在690-705、780-795、1025-1030、1222-1235和447-464 cm处检测到丝光沸石的特征振动，例如内部对称，外部对称，内部不对称，外部不对称和弯曲。^-1。PEG-EG样品从容量值为17.40 mg / g的水性介质中有效去除了Pb（II）离子。孔隙扩散，粒子内扩散，伪一级和液膜扩散动力学模型成功地描述了动力学研究的观点中Pb（II）离子的去除。此外，根据平衡研究，Langmuir等温线成功地描述了Pb（II）离子的去除。此外，从热力学研究的角度证实了去除Pb（II）离子的放热和化学吸附特性。经过五个解吸-吸附循环后，PEG-EG样品的容量或Pb（II）离子的去除率不受很大影响。