Abstract A novel efficient Ni2+ adsorbent A-type zeolite is successfully synthesized. It is worth noting that the raw material used is the waste coal ash produced by local power plants. The ability of A-type zeolite to remove Ni2+ from wastewater is up to 94%. In the study, the physical properties of zeolite are systematically characterized. In addition, we study in detail the effect of the external environment on the adsorption capacity of A-type zeolite. Moreover, the pseudo secondary kinetic model and Langmuir isothermal model evaluate the kinetic performance and isothermal equilibrium adsorption ability are better. The synthetic zeolite not only effectively uses the coal fly ash, but also realizes the sewage recycling. Therefore, the use of power plant coal fly ash to make adsorbent zeolite has potential practical significance.

中文翻译：

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用于高效去除废水中 Ni2+ 的粉煤灰衍生沸石

摘要 成功合成了一种新型高效Ni2+吸附剂A型沸石。值得注意的是，所用原料为当地电厂产生的废煤灰。A型沸石去除废水中Ni2+的能力高达94%。在研究中，沸石的物理性质被系统地表征。此外，我们详细研究了外部环境对A型沸石吸附能力的影响。此外，拟二级动力学模型和Langmuir等温模型对动力学性能和等温平衡吸附能力的评价较好。合成沸石不仅有效利用了粉煤灰，而且实现了污水的循环利用。因此，利用电厂粉煤灰制备吸附沸石具有潜在的现实意义。