Vinyl-functionalized covalent organic frameworks for effective radioactive iodine capture in aqueous solution

水溶液 共价有机骨架 共价键 化学 核化学 有机化学 吸附
作者
Xiaohe Tian,Guangwei Zhou,Jianwei Xi,Ruifeng Sun,Xuefeng Zhang,Gen Wang,Mei Lan,Cheng Hou,Liping Jiang,Jianhua Qiu
出处
期刊:Separation and Purification Technology [Elsevier]
卷期号:310: 123160-123160 被引量:23
标识
DOI:10.1016/j.seppur.2023.123160
摘要

131I radioisotopes have been widely employed in diagnostic and therapeutic medicine processes, particularly for thyroid cancer. The radiation hazard of 131I offers a potential threat to environmental safety or human health, so the wastewater generated from the production of 131I drugs must be effluent disposed of on time. In this study, we developed novel vinyl-functionalized covalent organic frameworks (COFs) with large pore volume and internal surface area for highly effective radioactive iodine ions adsorption in water. The as-produced spherical COFs (COF-V) exhibited a rapid adsorption rate (0.318 g g−1 min−1) and exceptionally high adsorption capacity of up to 437.8 mg g−1 for iodine ions in water. Furthermore, it demonstrated more than 90% removal of Na131I in water with radiation doses ranging from 181.3 MBq (4.9 mCi) to 1017.5 MBq (27.5 mCi). Additional characterizations and density functional theory (DFT) calculations revealed that the vinyl groups were linked with a benzene ring and imine to form a large and complete π-π conjugate system with 1D open channels. These channels provided sufficient sites for the effective adsorption of I ions on vinyl groups and benzene rings through hydrogen bonding. The excellent adsorption performance and radiation stability make the developed spherical COF-V a promising candidate for efficient radioactive iodine removal in wastewater.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
刚刚
1秒前
今后应助喵阿無采纳,获得10
2秒前
Yy杨优秀完成签到,获得积分10
3秒前
SSSSYYYY完成签到,获得积分10
3秒前
桐桐应助熙悦采纳,获得10
4秒前
4秒前
小茜发布了新的文献求助10
4秒前
传奇3应助97b1采纳,获得10
4秒前
金石为开完成签到,获得积分10
5秒前
5秒前
6秒前
6秒前
Yy杨优秀发布了新的文献求助10
7秒前
沉默丹亦完成签到,获得积分10
7秒前
Akim应助科研小趴菜采纳,获得10
7秒前
8秒前
8秒前
chenchen完成签到,获得积分10
8秒前
8秒前
安寒发布了新的文献求助10
8秒前
独特雁枫发布了新的文献求助10
8秒前
稻草人完成签到,获得积分10
9秒前
迅速若南完成签到,获得积分10
9秒前
9秒前
浅蓝色完成签到,获得积分10
10秒前
linlin发布了新的文献求助10
10秒前
10秒前
baby发布了新的文献求助10
10秒前
科研废物发布了新的文献求助10
11秒前
alna发布了新的文献求助10
11秒前
酷波er应助zzz采纳,获得10
11秒前
桐桐应助zzz采纳,获得10
11秒前
请叫我风吹麦浪应助zzz采纳,获得10
11秒前
请叫我风吹麦浪应助zzz采纳,获得10
11秒前
CodeCraft应助zzz采纳,获得10
11秒前
Erislastem完成签到,获得积分10
12秒前
善学以致用应助Yy杨优秀采纳,获得10
12秒前
HXY完成签到,获得积分10
12秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2700
Mechanistic Modeling of Gas-Liquid Two-Phase Flow in Pipes 2500
Kelsen’s Legacy: Legal Normativity, International Law and Democracy 1000
Handbook on Inequality and Social Capital 800
Conference Record, IAS Annual Meeting 1977 610
Interest Rate Modeling. Volume 3: Products and Risk Management 600
Interest Rate Modeling. Volume 2: Term Structure Models 600
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3546764
求助须知:如何正确求助?哪些是违规求助? 3123808
关于积分的说明 9356884
捐赠科研通 2822427
什么是DOI,文献DOI怎么找? 1551441
邀请新用户注册赠送积分活动 723417
科研通“疑难数据库(出版商)”最低求助积分说明 713756