Hongwei PANG, Hao TANG, Jiaqi WANG, Xiangxue WANG, Shujun YU. Ternary Layered Double Hydroxide Supported Sulfide NZVI: Efficient U(VI) Elimination and Mechanism [J]. Journal of Inorganic Materials, 2020, 35(3): 381
- Journal of Inorganic Materials
- Vol. 35, Issue 3, 381 (2020)
1. SEM images of NZVI (A), SNZVI (B), CMAL (C) and CMAL-SNZVI (E); TEM images of CMAL (D) and CMAL- SNZVI (F)
2. Element mapping of Ca(A), Mg(B), Al(C), Fe(D), S(E), and O(F), and EDS pattern (G) of CMAL-SNZVI
3. XRD patterns (A) of CMAL-SNZVI, CMAL and SNZVI, N2 adsorption-desorption isotherm (B)and magnetization curve (C) of CMAL-SNZVI
4. Adsorption kinetics (A), pseudo-first-order (B) and pseudo-second-order kinetic plots (C), adsorption isotherms (D) of U(VI) adsorption on CMAL-SNZVI and CMAL
5. Effect of pH (A) and ionic strength (C) on U(VI) adsorption of CMAL-SNZVI and CMAL, Zeta potential values of CMAL-SZVI as a function of pH (B), species distribution of U(VI) as a function of pH by Visual MINTEQ (D)
6. XPS survey spectra of CMAL-SNZVI (before and after U(VI) adsorption) (A), High -resolution XPS spectra of U4f (B), Fe2p (C), S2p (D), Ca2p (E), Mg1s (F) and Al2p (G), and removal mechanisms of U(VI) on CMAL-SNZVI (H)
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Table 1. Kinetic modeling of U(VI) adsorption on CMAL and CMAL-SNZVI
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Table 2. Parameters calculated from the Langmuir and Freundlich models for U(VI) adsorption on CMAL-SNZVI at 25 ℃
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Table 3. Comparison of CMAL-SNZVI with other typical adsorbents for U(VI) decontamination
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