Seed-assisted zeolite interconversion synthesis of fly ash-based ZSM-5 zeolite

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-01-29 DOI:10.1016/j.jssc.2025.125220

Xiaojing Meng, Huibang Huang, Jiaqin Peng, Yang Zhang, Liangxu Zhou, Min Li

{"title":"Seed-assisted zeolite interconversion synthesis of fly ash-based ZSM-5 zeolite","authors":"Xiaojing Meng, Huibang Huang, Jiaqin Peng, Yang Zhang, Liangxu Zhou, Min Li","doi":"10.1016/j.jssc.2025.125220","DOIUrl":null,"url":null,"abstract":"<div><div>To solve the problems of high production cost and environmental pollution, in this paper, fly ash is used as raw material and sodalite as intermediate to synthesis fly ash-based ZSM-5 zeolite. The process parameters such as crystallization time, crystallization temperature, crystal seed content, Na<sub>2</sub>O/SiO<sub>2</sub>, and SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratios were also optimized. The results showed that highly crystalline ZSM-5 zeolite with a specific surface area of 274.51 m<sup>2</sup> g<sup>−1</sup> were obtained after 12 h of treatment at 180 °C. The adsorption behavior of ammonia nitrogen ions on ZSM-5 zeolite was described by the pseudo-second-order kinetic model (R<sup>2</sup> = 0.9999) and Freundlich isotherm models, which indicated that the adsorption of ammonia nitrogen was dominated by chemical adsorption and is a multimolecular layer adsorption. The adsorption of ammonia nitrogen by ZSM-5 was a spontaneous and exothermic ion exchange process. ZSM-5 zeolite exhibited relatively good adsorption performance after 4 times of column adsorption.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"345 ","pages":"Article 125220"},"PeriodicalIF":3.2000,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S002245962500043X","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}

引用次数: 0

Abstract

To solve the problems of high production cost and environmental pollution, in this paper, fly ash is used as raw material and sodalite as intermediate to synthesis fly ash-based ZSM-5 zeolite. The process parameters such as crystallization time, crystallization temperature, crystal seed content, Na₂O/SiO₂, and SiO₂/Al₂O₃ molar ratios were also optimized. The results showed that highly crystalline ZSM-5 zeolite with a specific surface area of 274.51 m² g⁻¹ were obtained after 12 h of treatment at 180 °C. The adsorption behavior of ammonia nitrogen ions on ZSM-5 zeolite was described by the pseudo-second-order kinetic model (R² = 0.9999) and Freundlich isotherm models, which indicated that the adsorption of ammonia nitrogen was dominated by chemical adsorption and is a multimolecular layer adsorption. The adsorption of ammonia nitrogen by ZSM-5 was a spontaneous and exothermic ion exchange process. ZSM-5 zeolite exhibited relatively good adsorption performance after 4 times of column adsorption.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.