人工晶体学报2017，Vol.46Issue(5)：897-902,6.
固相法合成NaA型粉煤灰沸石对染料废水的吸附性能研究
Adsorption of Dye Wastewater by NaA Zeolite from Fly Ash bySolid Transformation Method
摘要
Abstract
Fly ash zeolite was synthesized by solid transformation method with coal fly ash.The effects of adsorption time, pH value and concentration of methylene blue (MB) solution, and adsorption temperature on the zeolite adsorption performance of MB were discussed by static adsorption experiment.The synthetical zeolite was characterized by means of SME and XRD.The results show that the synthetic product is NaA zeoite with hetero crystal by analysis of XRD.Analysis of SEM show that the product has spindle structure and cubic structure of NaA zeolite respectively.The removal rate of NaA zeolite can reach more than 90% for the initial concentration of 50-100 mg·L-1 of MB and it was 45% higher than fly ash at the adsorption temperature 25 ℃, pH>5, fly ash zeolite dosage 8 g·L-1, adsorption time 30 min.It is equivalent to commercial zeolite.The process about fly ash zeolite adsorb methylene blue conformed to the Langmuir model which is single molecular layer adsorption.关键词
固相法/粉煤灰/NaA型沸石/吸附Key words
solid transformation method/coal fly ash/NaA zeolite/adsorption分类
资源环境引用本文复制引用
宋瑞然,肖敏,胡晓钧,刘月..固相法合成NaA型粉煤灰沸石对染料废水的吸附性能研究[J].人工晶体学报,2017,46(5):897-902,6.基金项目
沈阳市科技计划(F13-062-2-00) （F13-062-2-00）
辽宁省教育厅项目(L2015361) （L2015361）
国家科技支撑计划(2012BAD14B04-5) （2012BAD14B04-5）
