钢渣改性活性炭的制备及其降解甲醛性能

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张浩^1,2*，徐远迪¹，张磊¹，刘秀玉¹

1. 安徽工业大学建筑工程学院，安徽马鞍山 2430322. 冶金减排与资源综合利用教育部重点实验室(安徽工业大学)，安徽马鞍山 243002

收稿日期:2019-02-10修回日期:2019-03-31出版日期:2019-12-22发布日期:2019-12-22
通讯作者:张浩

基金资助:中国博士后科学基金资助项目;高校优秀青年骨干人才国外访学研修项目;安徽省博士后研究人员科研活动经费资助项目;安徽省级大学生创新创业训练计划项目;国家级大学生创新创业训练计划项目

Preparation of steel slag modified activated carbon and its formaldehyde degradation performance

Hao ZHANG^1,2*, Yuandi XU¹, Lei ZHANG¹, Xiuyu LIU¹

1. School of Civil Engineering and Architecture, Anhui University of Technology, Ma?anshan, Anhui 243032, China2. Key Laboratory of Metallurgical Emission Reduction and Resources Recycling (Anhui University of Technology), Ministry of Education, Ma?anshan, Anhui 243002, China

Received:2019-02-10Revised:2019-03-31Online:2019-12-22Published:2019-12-22
Contact:ZHANG Hao

摘要/Abstract

摘要： 以钢渣和助磨剂(乙二醇、三乙醇胺和无水乙醇按体积比1:1:1混合)制备钢渣超细粉，用其对活性炭进行改性处理，获得钢渣改性活性炭，研究了钢渣种类、助磨剂用量和钢渣超细粉用量对钢渣改性活性炭降解甲醛性能的影响，分析了钢渣的化学成分、钢渣超细粉的粒度分布及结构、钢渣改性活性炭的微观结构。结果表明，450 g热闷渣与6 g助磨剂制备的钢渣超细粉用量10 g、活性炭30 g、无水乙醇50 g制备的钢渣改性活性炭具有良好的降解甲醛性能，12 h后甲醛降解率为60.9%。热闷渣中Fe2O3和MnO含量高，有利于甲醛在具有孔结构的活性炭中富集与催化降解；适量的助磨剂可显著减小钢渣超细粉的粒径，改善其粒度分布均匀程度，有利于增加钢渣超细粉与活性炭、甲醛的接触面积；可抵消由于活性炭孔隙率与比表面积降低导致的吸附性能下降，提高钢渣改性活性炭降解甲醛的性能。

引用本文

张浩徐远迪张磊刘秀玉. 钢渣改性活性炭的制备及其降解甲醛性能[J]. 过程工程学报, 2019, 19(6): 1228-1233.
Hao ZHANG Yuandi XU Lei ZHANG Xiuyu LIU. Preparation of steel slag modified activated carbon and its formaldehyde degradation performance[J]. Chin. J. Process Eng., 2019, 19(6): 1228-1233.

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