摘要
凭借着优越的还原活性,纳米零价铁在环境污染治理和修复领域应用广泛。通过将纳米零价铁(n ZVI)颗粒负载到大孔阴离子和阳离子交换树脂上,成功制备出2种树脂基纳米零价铁复合材料。研究了2种复合材料及其载体对水溶液中Pb(Ⅱ)的去除性能,考察了不同载体功能基团对复合材料去除Pb(Ⅱ)性能的影响。结果表明:以大孔阴离子交换树脂为载体的D001-Fe0复合材料因具有离子交换和化学还原双重作用,对Pb(Ⅱ)的去除效率高、速率快。
Because of its superior reducing ability,nanoscale zero valent iron is widely used in environmental pollution control and repairation. Two composite materials were successfully prepared through the nanoscale zero valent iron( n ZVI) particles loaded onto macroporous anion and cation exchange resins. The paper investigated the performance of the two composites and their supports for removal of Pb( II) from water solution,and also discussed the effect of two different structure of supports on the performance. The results indicated that D001-Fe0 obtained the highest removal efficiency and the fastest removal rate,whose support was a macroporous cation exchange resin,due to its function including ion exchange and chemical reduction.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第5期1-4,80,共5页
Environmental Engineering
基金
国家自然科学基金(21207110)
中国博士后科学基金(2013M540691)
关键词
离子交换树脂
纳米零价铁
铅
去除
ion exchange resin
nanoscale zero valent iron
lead
removal
