Ion-imprinted guanidine-functionalized zeolite molecular sieves enhance the adsorption selectivity and antibacterial properties for uranium extraction

吸附 水溶液 分子筛 化学 沸石 朗缪尔吸附模型 选择性 核化学 无机化学 朗缪尔 傅里叶变换红外光谱 选择性吸附 化学工程 材料科学 有机化学 催化作用 工程类 冶金
作者
Yi Zhao,Junwen Li,Sijin Wu,Haiming Cheng
出处
期刊:RSC Advances [Royal Society of Chemistry]
卷期号:12 (24): 15470-15478 被引量:9
标识
DOI:10.1039/d2ra01651f
摘要

The important properties in the development of adsorbents for uranium extraction from seawater include specific selectivity to uranium ions and anti-biofouling ability in the ocean environment. In this paper, we report a novel strategy for efficient selective extraction of uranium from aqueous solutions and good anti-bacterial properties by surface ion-imprinted zeolite molecular sieves. Guanidine-modified zeolite molecular sieves 13X (ZMS-G) were synthesized and used as the support for the preparation of uranium(vi) ion-imprinted adsorbents (IIZMS-G) by ligands with phosphonic groups. The prepared IIZMS-G adsorbent was characterized via Fourier transform infrared spectroscopy (FT-IR), scanning electronic microscopy (SEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). The results showed that guanidine groups have been successfully introduced onto the support while its morphology structure was maintained. The adsorption performance and selectivity to U(vi) ions, antibacterial property, and reusability of IIZMS-G were evaluated. The results showed that the maximum adsorption capacity reached 141.09 mg g-1 when the initial concentration of metal ions was 50 mg L-1 at pH 6 and 20 °C. The adsorption process followed the pseudo-second-order kinetic model and Langmuir adsorption isotherm model. The IIZMS-G exhibits an efficient selective adsorption of U(vi) ions from aqueous solutions with competing ions. In addition, the IIZMS-G exhibited excellent inhibitory effects on Escherichia coli and Staphylococcus aureus, and the inhibitory rate was 99.99% and 98.96% respectively. These results suggest that the prepared IIZMS-G adsorbent may promote the development strategy of novel high selectivity and antifouling adsorbents for uranium recovery from seawater.
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
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

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
liz完成签到,获得积分10
2秒前
2秒前
木香完成签到,获得积分10
2秒前
今后应助123456采纳,获得10
2秒前
自觉柠檬发布了新的文献求助10
3秒前
猫小乐C发布了新的文献求助10
3秒前
白桦发布了新的文献求助10
4秒前
L1nJ1nG完成签到,获得积分10
4秒前
小马甲应助123采纳,获得10
5秒前
5秒前
6秒前
Novermber发布了新的文献求助10
6秒前
7秒前
小蘑菇应助小刘采纳,获得10
7秒前
野葱发布了新的文献求助10
7秒前
眼睛大雨筠应助LaTeXer采纳,获得30
7秒前
小郭给小郭的求助进行了留言
7秒前
扎心应助森ok采纳,获得10
8秒前
Ali发布了新的文献求助10
8秒前
可靠月亮发布了新的文献求助10
8秒前
terence完成签到,获得积分0
9秒前
万能图书馆应助zjj采纳,获得10
9秒前
麦冬发布了新的文献求助10
9秒前
linovn完成签到,获得积分10
9秒前
9秒前
干净思远发布了新的文献求助10
9秒前
量子星尘发布了新的文献求助10
9秒前
123完成签到,获得积分10
10秒前
11秒前
11秒前
11秒前
好运来应助小远采纳,获得10
11秒前
12秒前
12秒前
汉堡包应助阿德利企鹅采纳,获得30
12秒前
心木完成签到 ,获得积分10
13秒前
CipherSage应助ZhouYW采纳,获得10
13秒前
儒雅的晓旋完成签到,获得积分20
13秒前
momo发布了新的文献求助10
14秒前
高分求助中
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Cognitive Neuroscience: The Biology of the Mind (Sixth Edition) 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
Christian Women in Chinese Society: The Anglican Story 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3961496
求助须知:如何正确求助?哪些是违规求助? 3507837
关于积分的说明 11138394
捐赠科研通 3240311
什么是DOI,文献DOI怎么找? 1790903
邀请新用户注册赠送积分活动 872636
科研通“疑难数据库(出版商)”最低求助积分说明 803288