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Evaluation of TiO 2 / LTA Zeolite Incorporated Composite for Mutual Removal of Organic and Inorganic Pollutants: Simulation Study for Prediction of Removal Beyond Equilibrium
Silicon ( IF 3.4 ) Pub Date : 2020-06-12 , DOI: 10.1007/s12633-020-00542-x
Eman Z. Hegazy , Islam H. Abd El Maksod , Samia A. Kosa , H. K. El Zahrani

In this paper, incorporation of titanium nanoparticles into LTA zeolite (Linde Type A Zeolite) was synthesized by in-situ incorporation of titanium precursors within hydrothermal synthesis of LTA zeolite from local kaolin. More than one evidence for the presence of nano TiO2 including XRD, IR, DR, and SEM techniques. Mutual removal /photodecomposition of heavy metal/organic dye including methylene blue combined with as set of Co2+, Cu2+, Ni2+and Pb2+ ions was the main aim of this study. A four dimensional simulation program were written to predict for the first time both dye and ions with the fourth dimension of time. This program for the first time , is capable of prediction of the removal beyond the equilibrium state. The program was verified and percentage of error did not exceeds 3% with high accuracy. This study will open a new sight the use the modified zeolite as an effective photocatalyst in addition to its high performance of removal of heavy metals. New definitions of some new terminologies was impeded in the literature for the first time such as; Amount selectivity, Partial capacity, Time selectivity, Normalized selectivity, Remained capacity and Loop selectivity



中文翻译:

TiO 2 / LTA沸石复合材料对有机和无机污染物的相互去除的评估:超出平衡的去除预测的模拟研究

在本文中,通过在由高岭土水热合成LTA沸石中原位掺入钛前驱体,从而将钛纳米颗粒掺入LTA沸石(Linde A型沸石)中。包括XRD,IR,DR和SEM技术在内的多种纳米TiO 2的证据不止一个。互去除/光分解包括亚甲基蓝和Co 2 +,Cu 2 +,Ni 2+和Pb 2+的组合的重金属/有机染料离子是这项研究的主要目的。编写了一个四维模拟程序,以第一次在第四维时间预测染料和离子。该程序首次能够预测超出平衡状态的去除量。该程序已经过验证,错误率不超过3%,且准确性很高。这项研究将为改性沸石除具有高效去除重金属的性能外,将其用作有效的光催化剂开辟了新的视野。一些新术语的新定义首次在文献中受到阻碍,例如;量选择性,部分容量,时间选择性,归一化选择性,剩余容量和回路选择性

更新日期:2020-06-12
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