油页岩灰渣合成P型沸石及对Co2+吸附性研究

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (5): 1720-1727.

所属专题：新型功能材料

油页岩灰渣合成P型沸石及对Co²⁺吸附性研究

赵雯, 李函霏, 吴畏

东北大学冶金学院资源与环境系,沈阳 110006

收稿日期:2020-12-21 修回日期:2021-03-15 出版日期:2021-05-15 发布日期:2021-06-07
通讯作者: 吴畏,副教授。E-mail:wuwei@smm.neu.edu.cn
作者简介:赵雯(1996—),女,硕士研究生。主要从事油页岩相关的研究。E-mail:1368336473@qq.com

Synthesis of P-Type Zeolite from Oil Shale Ashand Its Adsorption to Co²⁺

ZHAO Wen, LI Hanfei, WU Wei

Department of Resources and Environment, School of Metallurgy, Northeastern University, Shenyang 110006, China

Received:2020-12-21 Revised:2021-03-15 Online:2021-05-15 Published:2021-06-07

摘要/Abstract

摘要： 以油页岩灰渣为研究对象,采用碱熔-水热合成法合成P型沸石,研究了灰碱比、碱熔温度、水热温度、NaCl添加量等条件对合成P型沸石的影响,并利用制备的P型沸石进行了对Co²⁺的吸附性能试验,结果表明,NaCl的添加有利于沸石合成,而灰碱比、碱熔温度、水热温度的提高不利于沸石合成。油页岩灰渣与P型沸石对废水中Co²⁺的去除率都随着吸附剂投加量的增加而呈上升趋势。P型沸石对Co²⁺的吸附性能优于油页岩灰渣。并且随着Co²⁺溶液初始浓度的增加,P型沸石对Co²⁺的去除率逐步递减。

关键词: 油页岩灰渣, 碱熔法, P型沸石, Co²⁺, 吸附

Abstract: The thesis takes oil shale ash as the research object, adopts alkali fusion-hydrothermal synthesis method to synthesize P-type zeolite, and studies the influence of ash-alkali ratio, alkali fusion temperature, hydrothermal temperature, NaCl addition amount, and other conditions on the synthesis of P-type zeolite. And using the prepared P-type zeolite to carry out the Co²⁺ adsorption experiment. The results show that the addition of NaCl is beneficial to the synthesis of zeolite, while the increase in the ash-alkali ratio, alkali fusion temperature, and hydrothermal temperature is not conducive to the synthesis of zeolite. The removal rate of Co²⁺ in wastewater by oil shale ash and P-type zeolite shows an upward trend with the increase of adsorbent dosage. The adsorption performance of P-type zeolite for Co²⁺ is better than that of oil shale ash. And with the increase of the initial concentration of Co²⁺ solution, the removal rate of Co²⁺ by P-type zeolite gradually decreases.

Key words: oil shale ash, alkali fusion method, P-type zeolite, Co²⁺, adsorption

中图分类号:

TE662

赵雯, 李函霏, 吴畏. 油页岩灰渣合成P型沸石及对Co²⁺吸附性研究[J]. 硅酸盐通报, 2021, 40(5): 1720-1727.

ZHAO Wen, LI Hanfei, WU Wei. Synthesis of P-Type Zeolite from Oil Shale Ashand Its Adsorption to Co²⁺[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1720-1727.

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油页岩灰渣合成P型沸石及对Co²⁺吸附性研究

Synthesis of P-Type Zeolite from Oil Shale Ashand Its Adsorption to Co²⁺

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