دورية أكاديمية
أعرض في EDS

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

التفاصيل البيبلوغرافية
العنوان: One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite
المؤلفون: Guangyuan Yao, Jingjing Lei, Xiaoyu Zhang, Zhiming Sun, Shuilin Zheng
المصدر: Materials, Vol 11, Iss 6, p 906 (2018)
بيانات النشر: MDPI AG, 2018.
سنة النشر: 2018
المجموعة: LCC:Technology
LCC:Electrical engineering. Electronics. Nuclear engineering
LCC:Engineering (General). Civil engineering (General)
LCC:Microscopy
LCC:Descriptive and experimental mechanics
مصطلحات موضوعية: diatomite, zeolite X, hydrothermal method, calcium ion exchange capacity, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85
الوصف: Zeolite X powder was synthesized using natural low-grade diatomite as the main source of Si but only as a partial source of Al via a simple and green hydrothermal method. The microstructure and surface properties of the obtained samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), wavelength dispersive X-ray fluorescence (XRF), calcium ion exchange capacity (CEC), thermogravimetric-differential thermal (TG-DTA) analysis, and N2 adsorption-desorption technique. The influence of various synthesis factors, including aging time and temperature, crystallization time and temperature, Na2O/SiO2 and H2O/Na2O ratio on the CEC of zeolite, were systematically investigated. The as-synthesized zeolite X with binary meso-microporous structure possessed remarkable thermal stability, high calcium ion exchange capacity of 248 mg/g and large surface area of 453 m2/g. In addition, the calcium ion exchange capacity of zeolite X was found to be mainly determined by the crystallization degree. In conclusion, the synthesized zeolite X using diatomite as a cost-effective raw material in this study has great potential for industrial application such as catalyst support and adsorbent.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1996-1944
Relation: http://www.mdpi.com/1996-1944/11/6/906; https://doaj.org/toc/1996-1944
DOI: 10.3390/ma11060906
URL الوصول: https://doaj.org/article/8bada958529d4f249cb8014cf68bc221
رقم الأكسشن: edsdoj.8bada958529d4f249cb8014cf68bc221
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19961944
DOI:10.3390/ma11060906