Dataset for: Effect of Varying Sodium Alginate Concentration on Coconut Husk Waste Biochar–Sodium Alginate Composite Beads for the Removal of Lead (Pb²⁺) in Aqueous Solution

This dataset contains all raw and processed data supporting the findings of the study entitled "Effect of Varying Sodium Alginate Concentration on Coconut Husk Waste Biochar–Sodium Alginate Composite Beads for the Removal of Lead (Pb²⁺) in Aqueous Solution." The dataset includes Atomic Absorption Spectroscopy (AAS) measurements for lead removal efficiency and adsorption capacity, pseudo-first-order (PFO) and pseudo-second-order (PSO) kinetic modeling parameters, Fourier Transform Infrared Spectroscopy (FTIR) spectral data, and Scanning Electron Microscopy (SEM) images of all five adsorbent treatments: pure coconut husk biochar, pure sodium alginate beads, and 1%, 2%, and 3% (w/v) coconut husk biochar–sodium alginate composite beads. Data were obtained through batch adsorption experiments conducted at a fixed initial lead concentration, contact time, and pH. Statistical analysis was performed using one-way ANOVA to determine significant differences among treatments.本数据集包含支撑题为"不同海藻酸钠浓度对椰壳废弃生物炭-海藻酸钠复合微球去除水溶液中铅离子(Pb²⁺)效果"的研究结论的全部原始与处理后数据。本数据集涵盖5种吸附剂处理组的相关数据：纯椰壳生物炭、纯海藻酸钠微球，以及1%、2%、3%（w/v）的椰壳废弃生物炭-海藻酸钠复合微球。具体数据包括用于表征铅去除率与吸附容量的原子吸收光谱法（Atomic Absorption Spectroscopy, AAS）检测结果、准一级动力学（PFO）与准二级动力学（PSO）模型参数、傅里叶变换红外光谱（Fourier Transform Infrared Spectroscopy, FTIR）谱图数据，以及扫描电子显微镜（Scanning Electron Microscopy, SEM）成像结果。所有数据均通过批量吸附实验获取，实验设定了固定的铅初始浓度、接触时间与溶液pH值。本研究采用单因素方差分析（one-way ANOVA）开展统计分析，以明确各处理组间的显著性差异。