Major efforts have been made relating to the development of novel biosorbents applied to remove wastewater pollutants such as heavy metal ions and dyes. This work is focused on preparing a biosorbent from oil palm bagasse and alumina nanoparticles and using it for cadmium and nickel uptake. FT-IR, SEM and EDX analyses were carried out to test the diversification of functional groups, morphology and elemental composition. Batch adsorption experiments were performed varying pH (2, 4 and 6) and particle size (0.355, 0.5 and 1 mm) in order to determine suitable parameter values for further experiments using chemically modified biomass. The presence of absorption bands attributed to bonds with aluminum indicated a successful synthesis of this biosorbent. The carbon and oxygen elements most contribute to biosorbent composition due to the nature of this lignocellulosic biomass. The highest removal yields (87% for cadmium and 81% for nickel) were achieved at pH = 6 and particle size = 0.355 mm. In addition, the modification with alumina nanoparticles using dimethyl sulfoxide (DMSO) as organic solvent reflected no significant enhancement of adsorption process.

已经致力于开发用于去除废水污染物如重金属离子和染料的新型生物吸附剂。这项工作的重点是从油棕蔗渣和氧化铝纳米颗粒制备生物吸附剂，并将其用于吸收镉和镍。进行了FT-IR，SEM和EDX分析，以测试官能团，形态和元素组成的多样性。为了确定合适的参数值，以便使用化学改性的生物质进行进一步的实验，在pH（2、4和6）和颗粒大小（0.355、0.5和1 mm）上进行了批量吸附实验。归因于与铝结合的吸收带的存在表明该生物吸附剂的成功合成。由于这种木质纤维素生物质的性质，碳和氧元素最有助于生物吸附剂的组成。在pH = 6且粒径= 0.355 mm时，去除率最高（镉的去除率为87％，镍的去除率为81％）。此外，使用二甲基亚砜（DMSO）作为有机溶剂的氧化铝纳米粒子的改性未反映出吸附过程的显着增强。