In-situ synthesis process of birnessite to remove Co2+ from the simulated radioactive wastewater

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-02-06 DOI:10.1007/s10967-025-09998-w

Lanfang Hua, Yingying Zhan, Huiqi Fan, Jie Fang, Guangtuan Huang

引用次数: 0

Abstract

In this study, the in-situ synthesis of birnessite successfully removed Co²⁺ from simulated radioactive wastewater. The optimal reaction conditions were determined by single-factor experiments: a reaction time of 60 min, a pH of 11, a reaction temperature of 50°C and a Mn²⁺/Co²⁺ molar ratio of 7:1. The removal rate of Co²⁺ reached 99.97%. XRD confirmed birnessite as the precipitate. FTIR, precipitate dissolution and XPS analyses indicated that the removal mechanisms of Co²⁺ included hydroxide precipitation (0.36%), adsorption (4.70%) and ion exchange (94.94%). In conclusion, the in-situ synthesis of birnessite for Co²⁺ removal is promising for the treatment of radioactive wastewater.

Abstract Image

查看原文本刊更多论文

模拟放射性废水中碳酸盐的原位合成工艺研究

在本研究中，原位合成硼钛矿成功地去除了模拟放射性废水中的Co2+。通过单因素实验确定了最佳反应条件：反应时间60 min， pH值11，反应温度50℃，Mn2+/Co2+摩尔比7:1。对Co2+的去除率达到99.97%。XRD证实析出物为碳酸盐。FTIR、沉淀溶解和XPS分析表明，Co2+的脱除机制主要为氢氧化物沉淀（0.36%）、吸附（4.70%）和离子交换（94.94%）。综上所述，原位合成氢氧化镁去除Co2+在放射性废水处理中具有广阔的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.