Synthesis of zirconium molybopyrophosphate and its ion-exchange performance with Cs<sup>+</sup>

XIONG Liangping GU Mei Lü Kai LUO Yangming

doi:10.11889/j.0253-3219.2013.hjs.36.010301

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Synthesis of zirconium molybopyrophosphate and its ion-exchange performance with Cs⁺

更新时间：2021-06-03

- Synthesis of zirconium molybopyrophosphate and its ion-exchange performance with Cs⁺
- NUCLEAR TECHNIQUES Vol. 36, Issue 1, Article number: 010301(2013)
- 作者机构：
  
  中国工程物理研究院核物理与化学研究所
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2013.hjs.36.010301
  CLC： O611.3
- Published：2013
- 稿件说明：
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[1]熊亮萍,古梅,吕开,罗阳明.焦磷钼酸锆的合成及其与Cs~+的交换性能研究[J].核技术,2013,36(01):50-54.

XIONG Liangping GU Mei Lü Kai LUO Yangming. Synthesis of zirconium molybopyrophosphate and its ion-exchange performance with Cs⁺[J]. Nuclear techniques, 2013, 36(1): 010301
[1]熊亮萍,古梅,吕开,罗阳明.焦磷钼酸锆的合成及其与Cs~+的交换性能研究[J].核技术,2013,36(01):50-54. DOI： 10.11889/j.0253-3219.2013.hjs.36.010301.

XIONG Liangping GU Mei Lü Kai LUO Yangming. Synthesis of zirconium molybopyrophosphate and its ion-exchange performance with Cs⁺[J]. Nuclear techniques, 2013, 36(1): 010301 DOI： 10.11889/j.0253-3219.2013.hjs.36.010301.

摘要

以ZrOCl2、Na2MoO4、K4P2O7为原料

合成了一种用于提铯的无机离子交换剂——焦磷钼酸锆（ZMPP）

研究了ZrOCl2浓度对产物的结构及Cs+交换性能的影响。用傅里叶变换红外光谱（FT-IR）、热重分析（TGA）、X射线衍射（XRD）、扫描电子显微镜（SEM）等手段表征了ZMPP的微观结构

并测试了其耐酸性。FT-IR谱图表明

其中存在结构水和焦磷酸根。TGA结果显示

在110°C 590°C

焦磷钼酸锆逐渐失去结构水。XRD曲线显示

ZMPP为无定形物质。SEM观察发现

ZMPP为微米尺寸的不规则颗粒

与Cs+发生交换后表面变得光滑。合成的ZMPP具有良好的耐酸性。原料中ZrOCl2浓度对ZMPP的结构无明显影响

但其浓度增大有利于提高ZMPP对溶液中Cs+的交换容量。在中性条件下

当溶液中初始Cs+浓度为13.24 mmol/L时

ZMPP对Cs+的交换容量可达1.329 mmol/g。

Abstract

A kind of inorganic ion-exchanger for cesium removal

zirconium molybopyrophosphate（ZMPP） was synthesized from ZrOCl2

Na2MoO4 and K4P2O7.The effect of ZrOCl2 concentration on the structure and ion-exchange performance of ZMPP was investigated.The microstructure of ZMPP was analyzed by FT-IR

TGA

XRD

SEM

etc.FT-IR spectra indicated that there were structural water and pyrophosphate groups in ZMPP samples.TGA curves showed that the structural water was gradually lost between 110°C to 590°C.XRD curves displayed that ZMPP samples were amorphous.SEM photos manifested that ZMPP were irregular grains in micron scope

and the surface became smooth after ion-exchanged with Cs+.ZMPP exhibited excellent acidresistivity.Concentration of ZrOCl2 did not evidently affect the structure of ZMPP

however

results of adsorption experiment showed that ion-exchange capacity would increase with ZrOCl2 concentration increases.In neutral system

when initial Cs+ concentration was 13.24 mmol/L

its ion-exchange capacity was up to 1.329 mmol/g.

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Related Author

TENG Yuancheng1 ZHOU Shiguang2 SHI Zhengkun3 WANG Jianzhong2 1

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Related Institution

Institute of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China) 2

西南科技大学环境资源学院

中国工程物理研究院核物理与化学研究所

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