Department of Metallurgical and Materials Engineering, Konya Technical University, 42130, Selçuklu, Konya, Turkey.
Environ Sci Pollut Res Int. 2023 Mar;30(15):44276-44291. doi: 10.1007/s11356-023-25534-3. Epub 2023 Jan 24.
In this study, a hazelnut shell (HS) filled semi-interpenetrating polymer networks (semi-IPN) biocomposite adsorbent with novel and different compositions was developed that will enable the removal of lead ions, which are commonly found in water, by adsorption reactions. The structural and morphological properties of the produced adsorbents were characterized by FT-IR, XRD, TGA, DSC, BET, FE-SEM, EDX, and zeta potential measurements, and the production mechanism of these adsorbents was discussed. The effects of parameters such as different adsorbent dosages, different heavy metal concentrations, type of adsorbent, contact time, pH, and temperature on the swelling abilities and adsorption properties of adsorbents were investigated in detail. It has been determined that the adsorbent, which exhibits optimum adsorption and swelling properties, is a biocomposite containing 5% by weight HS filler, and it has been observed that it can remove up to 85% of lead ions under different parameters and conditions. In addition, the adsorption behaviors of the produced biocomposites are discussed using isothermal, kinetic, and thermodynamic models. Moreover, studies have been carried out on the reusability of the adsorbent, and it has been observed that the adsorbent produced within the scope of the study is still usable even after four cycles.
在这项研究中，开发了一种具有新颖和不同组成的榛子壳（HS）填充半互穿聚合物网络（semi-IPN）生物复合材料吸附剂，通过吸附反应能够去除水中常见的铅离子。通过 FT-IR、XRD、TGA、DSC、BET、FE-SEM、EDX 和 ζ 电位测量对所制备的吸附剂的结构和形态特性进行了表征，并讨论了这些吸附剂的生产机制。详细研究了不同吸附剂剂量、不同重金属浓度、吸附剂类型、接触时间、pH 值和温度等参数对吸附剂溶胀能力和吸附性能的影响。结果表明，在不同参数和条件下，具有最佳吸附和溶胀性能的吸附剂是含有 5%重量 HS 填料的生物复合材料，它可以去除高达 85%的铅离子。此外，还使用等温、动力学和热力学模型讨论了所制备的生物复合材料的吸附行为。此外，还研究了吸附剂的可重复使用性，结果表明，在所研究的范围内制备的吸附剂即使经过四个循环仍然可用。
