Citation: Li Xu, Jin Nan Wang, Ying Meng, Ai Min Li. Fast removal of heavy metal ions and phytic acids from water using new modified chelating fiber[J]. Chinese Chemical Letters, ;2012, 23(1): 105-108. doi: 10.1016/j.cclet.2011.09.029 shu

Fast removal of heavy metal ions and phytic acids from water using new modified chelating fiber

State Key Laboratory of Pollution Control and Resource Reuse & School of the Environment, Nanjing University, Nanjing 210046, China

Received Date: 7 June 2011

Fund Project: We gratefully acknowledge generous support provided by the Key National Nature Science Fund (No. 50938004) and the National Science Funds for Young Scientists (No. 50102582), Nature Science Fund of Jiangsu Province (No. BK2010381) and the Fundamental Research Funds for the Central Universities.

The graft copolymerization of acrylic acid (AA) onto polyethylene glycol terephthalate (PET) fiber initiated by benzoy peroxide (BPO) was carried out in heterogeneous media. Moreover, modification of the grafted PET fiber (PET-AA) was done by changing the carboxyl group into acylamino group through the reaction with dimethylamine. The modified chelating fiber (NDWJN1) was characterized using elementary analysis, SEM and FT-IR spectroscopy. Adsorption kinetic curves indicated that NDWJN1 could fast remove heavy metal ions and phytic acids from water effectively. Furthermore, batch kinetic studies indicated that heavy metal ions adsorbed to NDWJN1 could be fitted well by both pseudo-first-order and pseudo-second-order adsorption equations, but the intra-particle diffusion played a dominant role in the adsorption of phytic acids.
- Removal,
- Heavy metal ions,
- Phytic acid,
- Modified chelating fiber
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