半焦粉末基质子吸附剂的制备及其吸附性能  

Preparation and adsorption properties of semi-coke powder matrix adsorbent

作　　者：白锦军[1] 李保珍 亢玉红[1] 马向荣[1] 高勇[1] 李彦军[1] 吕波 BAI Jinjun;LI Baozhen;KANG Yuhong;MA Xiangrong;GAO Yong;LI Yanjun;L Bo(College of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,China)

机构地区：[1]榆林学院化学与化工学院,陕西榆林719000

出　　处：《化工科技》2020年第5期6-10,共5页Science & Technology in Chemical Industry

基　　金：国家自然科学基金项目(51762042);陕西省自然科学基础研究计划项目(2020JQ-901);榆林市科技局产学研项目(2019-kjj021,2019-kjj024)。

摘　　要：以半焦为原料,通过酸处理的方法对其进行预处理,使用浓硫酸对酸处理后的半焦进行磺化处理,最终分别获得未酸化半焦质子吸附剂、酸化半焦质子吸附剂和磺化半焦质子吸附剂。采用场发射扫描电子显微镜和电子能谱表征,结果显示磺化半焦质子吸附剂表面出现明显孔隙,附有小颗粒,且硫元素增加,说明半焦经磺化后官能团有所变化。傅里叶红外光谱仪和X-射线研究显示,磺化的半焦质子吸附剂有较多官能团,浓硫酸的强氧化性导致半焦的结构发生了变化,酸溶解了一部分无机物,使质子吸附剂表面出现明显多孔结构,对含酚废水中苯酚的吸附性能力增强。In this paper,the semi-coke was pretreated by acid treatment,and then the acid-treated semi-coke was sulfonated with concentrated sulfuric acid.Finally,unacidified semi-coke proton adsorbent,acidified semi-coke proton adsorbent and sulfonated semi-coke proton adsorbent were obtained respectively.The SEM and EDS were used to characterize the surface of sulfonated semi-coke.The results showed that there were obvious pores and small particles on the surface of the adsorbent.The sulfur element increased,indicating that the functional groups of semi-coke have changed after sulfonation.FTIR and X-ray studies showed that the sulfonated semi-coke proton adsorbent had more functional groups.The strong oxidation of concentrated sulfuric acid led to the change in the structure of the semi-coke.The acid dissolves a part of the inorganic substances to make the proton adsorbent appear porous structure,which enhanced the ability to adsorb phenol in wastewater containing phenol.

关 键 词：半焦 磺化 质子吸附剂 苯酚吸附 

分 类 号：TQ536[化学工程—煤化学工程]