ABSTRACT

Linde-type A zeolite (LTA) was prepared from coal fly ash (CFA) and used as an adsorbent to remove acidic dye (Acid red 66, AR66) from its aqueous solution. The effectiveness of synthesized (LTA) in adsorbing (AR66) from an aqueous solution was studied using batch experiments. The equilibrium data were studied using the Langmuir and Freundlich models and it was found that the data fit better to Freundlich model. Kinetic adsorption studies were done in terms of intra-particle diffusion model, pseudo-first-order and pseudo-second-order models. The results showed that the data followed a pseudo-second-order model.

中文翻译：

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微波辅助合成粉煤灰制备林德A型沸石(LTA)及其表征及其作为吸附剂去除阴离子染料的应用

摘要

林德 A 型沸石 (LTA) 由粉煤灰 (CFA) 制备并用作吸附剂以从其水溶液中去除酸性染料 (酸性红 66, AR66)。使用批量实验研究了合成 (LTA) 从水溶液中吸附 (AR66) 的有效性。使用Langmuir和Freundlich模型研究平衡数据，发现数据更适合Freundlich模型。动力学吸附研究采用颗粒内扩散模型、准一级和准二级模型进行。结果表明，数据遵循伪二阶模型。