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Synthesis of zeolites from low-cost feeds and its sustainable environmental applications
Journal of Environmental Chemical Engineering ( IF 7.4 ) Pub Date : 2022-11-21 , DOI: 10.1016/j.jece.2022.108995
Shuai Gao , Hong Peng , Bing Song , Jinxuan Zhang , Weixi Wu , James Vaughan , Peter Zardo , John Vogrin , Sylvia Tulloch , Zhonghua Zhu

Zeolites are one of the most widely used adsorbents, versatile for multiple purposes including the emerging areas of carbon capture and wastewater treatment. However, the scaling up of zeolite-based adsorption is challenged mainly by the high cost required for its synthesis. Successfully producing high-performance zeolite adsorbents from low-value or even waste raw materials such as mineral, industrial and agricultural wastes is alluring in that it will (i) reduce the costs for zeolite preparation and high-value applications and (ii) provide a value-adding means for managing various wastes. This review is thus prepared to (1) overview the state-of-art zeolite synthesis methods using low-value resources or waste streams and their corresponding methods, (2) understand the performances of various low-value ends derived zeolites for gas adsorption with a focus on their CO2 capturing capabilities compared to commercial synthetic zeolites, (3) assess the capabilities of these zeolites for wastewater treatment applications compared to commercial synthetic zeolites, and (4) provide perspectives for future studies. The conversion of low-cost feedstock or even wastes is plausible to produce valuable zeolites with performances comparable to commercial synthetic zeolites, calling for progress in developing greener routes for zeolite preparation, addressing the inconsistency of raw materials, and techno-economic assessments based on large-scale preparation and applications.



中文翻译:

从低成本原料中合成沸石及其可持续环境应用

沸石是使用最广泛的吸附剂之一,用途广泛,包括碳捕获和废水处理等新兴领域。然而,基于沸石的吸附的扩大主要受到其合成所需的高成本的挑战。从矿物、工业和农业废料等低价值甚至废弃的原材料中成功生产高性能沸石吸附剂具有吸引力,因为它将 (i) 降低沸石制备和高价值应用的成本,以及 (ii) 提供管理各种废物的增值手段。因此,这篇综述准备 (1) 概述使用低价值资源或废物流的最先进的沸石合成方法及其相应的方法,2与商业合成沸石相比的捕集能力,(3) 与商业合成沸石相比,评估这些沸石在废水处理应用中的能力,以及 (4) 为未来的研究提供前景。低成本原料甚至废物的转化似乎可以生产出性能与商业合成沸石相当的有价值的沸石,这需要在开发更环保的沸石制备路线、解决原材料的不一致性以及基于大型数据的技术经济评估方面取得进展-规模制备和应用。

更新日期:2022-11-21
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