Research Department of Chemistry, Khadir Mohideen College (Affiliated to Bharathidasan University, Thiruchirappalli), Adirampattinam, 614701, Tamil Nadu, India.
PG & Research Department of Physics, Thiagarajar College, Madurai, Tamilnadu, India, 625009, Tamil Nadu, India.
Environ Res. 2022 Jan;203:111814. doi: 10.1016/j.envres.2021.111814. Epub 2021 Aug 2.
The adsorption behavior of biomaterial activated Sawdust-Chitosan nanocomposite beads (SDNCB) powder was investigated along with synthesis and experimental techniques approaches to study the removal efficiency of some heavy metal ions including Ni (II) and Cu (II) ions from aqueous solutions by assessing the surface-modified activated carbon by the cost-effective non-conventional method. Structural analysis of the entitled compound was evaluated by the PXRD techniques and its surface morphology was inferred by the following techniques: TEM, EDAX. The behavior of the functional group presents in the compound was discussed using the FTIR technique. Such parameters like dosage, pH, time, temperature, and initial concentration of copper and nickel were associated with this to examine the effect of adsorption of heavy elements that exist in the portable solution. Further, the cellulose and chitosan beads complex material have an appropriate surface area, it demonstrated metal ions removal efficiency was more appreciable due to the action of activated carbon, where this showed fast rate sorption kinetics due to strong involvement of Cu & Ni towards cellulose and chitosan's functional groups in the bio composite. The isotherm model so-called Langmuir, Freundlich, and Temkin model was utilized to plot the experimental adsorption dataset to infer the maximum adsorption capacity. Based on this model, the adsorption properties of the beads treated compound was determined by plotting the graphs in which sorption intensity (n) which implies expected sorption, and the correlation value are 1.989, 0.998, and 0,981 respectively.
采用经济高效的非常规方法，通过评估经表面改性的活性炭，研究了生物质活化木屑-壳聚糖纳米复合珠（SDNCB）粉末的吸附行为以及合成和实验技术方法，以研究从水溶液中去除某些重金属离子（包括 Ni（II）和 Cu（II）离子）的去除效率。通过 PXRD 技术评估了标题化合物的结构分析，并通过以下技术推断其表面形态：TEM、EDAX。使用 FTIR 技术讨论了化合物中存在的官能团的行为。研究了与吸附存在于便携式溶液中的重金属有关的参数，如剂量、pH 值、时间、温度和铜镍的初始浓度。此外，纤维素和壳聚糖珠复合材料具有适当的表面积，由于活性炭的作用，证明了去除金属离子的效率更高，这表明由于 Cu 和 Ni 对生物复合材料中纤维素和壳聚糖官能团的强烈作用，吸附动力学较快。等温模型，即 Langmuir、Freundlich 和 Temkin 模型，用于绘制实验吸附数据集以推断最大吸附容量。基于该模型，通过绘制吸附强度（n）图来确定珠状处理化合物的吸附特性，其中 n 表示预期的吸附，相关值分别为 1.989、0.998 和 0.981。
