Dried duckweed-Lm aquatic plant was subjected to molecular modifications using quantum mechanical calculations. The molecular modeling simulates aquatic weed as a composite of cellulose/lignin/glycine. This model suggests the ability to remove inorganic pollutants from wastewater according to unique hydrogen bonding and high total dipole moment. For verifications, experimental efforts are performed for the phytoremediation of Cr (VI) from aqueous solution using a species of Duckweed Lemna minor (Lm) through adsorption process. Duckweed-Lm biomass was prepared and characterized by X-ray diffraction (XRD), scan electron microscope (SEM), Fourier-transform infrared (FTIR) and Brunauer– Emmett–Teller (BET). The effect of several important parameters, such as pH, sorbent dose, contact time, temperature, sorption and desorption processes, was studied. The phytoremediation of Cr(VI) ion was found to be pH-dependent with a maximum removal of 64% achieved at pH of 3.8 and a lowest removal of 25% at pH of 9.5. The obtained adsorption results indicated that duckweed-Lm can be effective for chromium ion removal from aqueous solutions.

使用量子力学计算对干燥的浮萍-Lm水生植物进行分子修饰。分子模型将水生杂草模拟为纤维素/木质素/甘氨酸的复合物。该模型表明了根据独特的氢键和高总偶极矩从废水中去除无机污染物的能力。为了进行验证，我们进行了一项实验工作，利用一种Duckweed Lemna minor（Lm）通过吸附过程从水溶液中对六价铬（VI）进行植物修复。Duckweed-Lm生物质已制备并通过X射线衍射（XRD），扫描电子显微镜（SEM），傅立叶变换红外光谱（FTIR）和Brunauer-Emmett-Teller（BET）进行了表征。研究了几个重要参数的影响，例如pH，吸附剂剂量，接触时间，温度，吸附和解吸过程。发现Cr（VI）离子的植物修复是pH依赖性的，在pH值为3.8时最大去除率为64％，在pH 9.5时最小去除率为25％。获得的吸附结果表明浮萍-Lm可以有效去除水溶液中的铬离子。