Abstract Geopolymers are porous materials that can be used as basic dye adsorbents in wastewater treatment. In this work, a green geopolymer paste synthesized from industrial and agricultural waste materials was employed as an adsorbent to remove the basic dye methylene blue from aqueous solutions. The geopolymer sample was characterized by X-ray fluorescence, scanning electron microscopy, Brunauer Emmet Teller surface area measurements, and particle size techniques. The isotherms of dye adsorption by the geopolymer sample were considered by the Langmuir and Freundlich adsorption models. The removal efficiency increased with increasing geopolymer dosage, contact time and temperature. The Freundlich isotherm exhibited the best fit to the adsorption data.

中文翻译：

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基于地质聚合物糊的吸附材料，用于从水溶液中去除染料

摘要 地质聚合物是一种多孔材料，可用作废水处理中的碱性染料吸附剂。在这项工作中，由工业和农业废料合成的绿色地质聚合物糊剂用作吸附剂，从水溶液中去除碱性染料亚甲蓝。地质聚合物样品通过 X 射线荧光、扫描电子显微镜、Brunauer Emmet Teller 表面积测量和粒度技术表征。Langmuir 和 Freundlich 吸附模型考虑了地质聚合物样品吸附染料的等温线。去除效率随着地质聚合物用量、接触时间和温度的增加而增加。Freundlich 等温线表现出对吸附数据的最佳拟合。