Physicochemical transformation of carboxymethyl cellulose-coated zero-valent iron nanoparticles (nZVI) in simulated groundwater under anaerobic conditions

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• 作者：Haoran Dong ; ^{dongh@hnu.edu.cn} ; Feng Zhao ; Qi He ; Yankai Xie ; Yalan Zeng ; Lihua Zhang ; Lin Tang ; Guangming Zeng
• 关键词：Aging ; Surface modification ; Groundwater ; Nanoscale zero-valent iron ; Physicochemical transformation
• 刊名：Separation and Purification Technology
• 出版年：2017
• 出版时间：24 March 2017
• 年：2017
• 卷：175
• 期：Complete
• 页码：376-383
• 全文大小：1995 K
• 卷排序：175

文摘

The aging product of nZVI and CMC-nZVI in simulated groundwater were investigated. Both structure and composition of the aging products transformed over time. Different types of corrosion products were formed for bare nZVI and CMC-nZVI. Groundwater ions were involved in the formation of secondary minerals with Fe aging. CMC could slow down the aging rate of nZVI and alter the species transformation.