In this work, the powder of the coconut husk was submitted to the hydrothermal pretreatment steam explosion. The effect of this pretreatment under the rigid lignocellulosic structure of biomass was evaluated from the analysis of hydrolyzable composition, XRD, specific surface area, and pore volume. The results confirmed that there was thermal degradation of hemicellulose, with an increase of the biomass crystallinity and porosity, favoring the adsorption of the monocomponent Cu²⁺ and Cd²⁺ at room temperature. The kinetic pseudo-second-order model and the Langmuir model isotherm described the adsorption process, with a maximum adsorption capacity of Cu²⁺ and Cd²⁺ of 18.86 and 17.9 mg/g, respectively. The effect of temperature on monocomponent adsorption was also studied. Coconut husk powder can be used efficiently after steam explosion for metal ion adsorption.

在这项工作中，将椰子壳粉进行水热预处理蒸汽爆炸。通过对可水解成分，XRD，比表面积和孔体积的分析来评估该预处理在生物质的刚性木质纤维素结构下的效果。结果证实半纤维素存在热降解，生物质的结晶度和孔隙率增加，有利于单组分Cu ²⁺和Cd ²⁺在室温下的吸附。动力学拟二阶模型和Langmuir模型等温线描述了吸附过程，最大吸附容量为Cu ²⁺和Cd ²⁺分别为18.86和17.9 mg / g。还研究了温度对单组分吸附的影响。蒸汽爆破后，椰子壳粉可以有效地用于金属离子的吸附。