Kenaf cellulose-based poly（amidoxime） ligand for adsorption of rare earth ions
来源期刊：Rare Metals2019年第3期
论文作者：Md Lutfor Rahman Mohd Sani Sarjadi Sazmal Effendi Arshad Mashitah M. Yusoff Shaheen M. Sarkar Baba Musta
文章页码：259 - 269
摘 要：A well-known adsorbent, poly（amidoxime）ligand, was prepared from polyacrylonitrile（PAN） grafted kenaf cellulose, and subsequent characterization was performed by Fourier transform infrared spectroscopy（FTIR）,field emission scanning electron microscope（FESEM） and inductively coupled plasma mass spectrometry（ICP-MS）.The adsorption capacities of the prepared ligand for rare earth metals are found to be excellent, with adsorptions of La3+, Ce3+, Pr3+, Gd3+ and Nd3+ experimentally determined to be 262, 255, 244, 241 and 233 mg·g-1, respectively, at pH 6. The experimental values of the adsorption of rare earth metals are well matched with the pseudosecond-order rate equation. The reusability of the adsorbent is examined for seven cycles of sorption/desorption,demonstrating that the proposed adsorbent could be reused for over seven cycles without any significant loss in the original removal capability of the ligand.
Md Lutfor Rahman1，Mohd Sani Sarjadi1，Sazmal Effendi Arshad1，Mashitah M. Yusoff2，Shaheen M. Sarkar2，Baba Musta1
1. Faculty of Science and Natural Resources, Universiti Malaysia Sabah2. Faculty of Industrial Sciences and Technology,University Malaysia Pahang
摘 要：A well-known adsorbent, poly（amidoxime）ligand, was prepared from polyacrylonitrile（PAN） grafted kenaf cellulose, and subsequent characterization was performed by Fourier transform infrared spectroscopy（FTIR）,field emission scanning electron microscope（FESEM） and inductively coupled plasma mass spectrometry（ICP-MS）.The adsorption capacities of the prepared ligand for rare earth metals are found to be excellent, with adsorptions of La3+, Ce3+, Pr3+, Gd3+ and Nd3+ experimentally determined to be 262, 255, 244, 241 and 233 mg·g-1, respectively, at pH 6. The experimental values of the adsorption of rare earth metals are well matched with the pseudosecond-order rate equation. The reusability of the adsorbent is examined for seven cycles of sorption/desorption,demonstrating that the proposed adsorbent could be reused for over seven cycles without any significant loss in the original removal capability of the ligand.
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