通过二乙烯三胺改性麦秸秆(MWS),显著提高了其对阴离子染料亮绿(LG)的吸附能力。研究结果表明:酸性条件和升温有利于吸附,盐类存在不利于吸附,静电引力在吸附过程中起着主要的作用,在LG初始浓度为600mg/L,溶液pH=2,溶液温度30℃,吸附时间为350min条件下,MWS对LG的吸附量最高达到496mg/g。
Wheat straw was modified by diethylenetriamine with epichlorohydrin and the adsorption quantity toward anionic dye light green was significantly enhanced.The results showed that it was favor of adsorption at pH=2 and coexisted common salts was opposite.The adsorption quantity was to 496mg/g at the conditions of t=30℃,pH=2 and contact time=350min.
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基金资助
河南省自然科学基金项目(92300410030)
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