负载纳米零价铁的D001树脂对<sup>99</sup>Tc吸附研究

doi:10.1007/s11708-019-0634-y

Frontiers in Energy

2020, Vol. 14

Issue (1): 11-17 https://doi.org/10.1007/s11708-019-0634-y

本期目录

负载纳米零价铁的D001树脂对⁹⁹Tc吸附研究

付凌霄¹, 俎建华¹(

), HE Linfeng², 顾恩熙¹, 王焕¹

¹. 上海交通大学核工程学院
². Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China

An adsorption study of ⁹⁹Tc using nanoscale zero-valent iron supported on D001 resin

Lingxiao FU¹, Jianhua ZU¹(

), Linfeng HE², Enxi GU¹, Huan WANG¹

¹. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
². Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China

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摘要:

负载纳米零价铁的D001树脂（D001-nZVI）被合成出来，被用来吸附高溶解性和迁移性的放射性核素⁹⁹Tc。Re(VII)作为Tc(VII)的替代物, 在分批实验中被用来调查D001-nZVI 移除Tc(VII)的可行性和吸附机理。pH , 树脂质量对D001-nZVI 吸附Re(VII)的影响进行了研究，发现D001-nZVI 吸附Re(VII)最大吸附效率是在溶液pH=3且固液比为20 g/L。XRD表征显示出D001-nZVI将 $Re O 4 −$ 还原成ReO₂固体吸附在了D001-nZVI上。基于D001-nZVI对Re(VII)最优吸附条件，D001-nZVI对Tc(VII)移除实验也进行了研究，同样条件下对Tc(VII)吸附效率可达94%。柱试验展示出Thomas模型能够很好地描述Re(VII)在D001-nZVI上的吸附过程，同时最大动态吸附容量为0.2910 mg/g。

Abstract：

Nanoscale zero-valent iron (nZVI) supported on D001 resin (D001-nZVI) was synthesized for adsorption of high solubility and mobility radionuclide ⁹⁹Tc. Re(VII), a chemical substitute for ⁹⁹Tc, was utilized in batch experiments to investigate the feasibility and adsorption mechanism toward Tc(VII). Factors (pH, resin dose) affecting Re(VII) adsorption were studied. The high adsorption efficiency of Re(VII) at pH= 3 and the solid-liquid ratio of 20 g/L. X-ray diffraction patterns revealed the reduction of $Re O 4 −$ into ReO₂ immobilized in D001-nZVI. Based on the optimum conditions of Re(VII) adsorption, the removal experiments of Tc(VII) were conducted where the adsorption efficiency of Tc(VII) can reach 94%. Column experiments showed that the Thomas model gave a good fit to the adsorption process of Re(VII) and the maximum dynamic adsorption capacity was 0.2910 mg/g.

Key words： technetium nanoscale zero-valent iron (nZVI) D001 resin adsorption

收稿日期: 2018-11-02 出版日期: 2020-03-16

通讯作者: 俎建华 E-mail: zujianhua@sjtu.edu.cn

Corresponding Author(s): Jianhua ZU

引用本文:

付凌霄, 俎建华, HE Linfeng, 顾恩熙, 王焕. 负载纳米零价铁的D001树脂对⁹⁹Tc吸附研究[J]. Frontiers in Energy, 2020, 14(1): 11-17.
Lingxiao FU, Jianhua ZU, Linfeng HE, Enxi GU, Huan WANG. An adsorption study of ⁹⁹Tc using nanoscale zero-valent iron supported on D001 resin. Front. Energy, 2020, 14(1): 11-17.

链接本文:

https://academic.hep.com.cn/fie/CN/10.1007/s11708-019-0634-y
https://academic.hep.com.cn/fie/CN/Y2020/V14/I1/11

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Metal ion	Regression equation	k_T/(mL?min⁻¹?mg⁻¹)	q₀/(mg?g⁻¹)	R²
Re(VII)	$ln ? (C 0 C e − 1) = 1.318 − 13.933 V$	0.4170	0.2910	0.991

Tab.2

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