Iron anchored carbon–nitrogen catalyst for enhanced activation performance of peroxymonosulfate: Synergy of 1O2 and high-valent iron

催化作用 化学 氮气 碳纤维 无机化学 环境化学 有机化学 材料科学 复合数 复合材料
作者
Yanfei Guo,Zhuang Guo,Jian Wei,Jiali Zhang,Yihan Huang,Tong Hao,Cheng Wang,Dongyao Xu
出处
期刊:Separation and Purification Technology [Elsevier]
卷期号:353: 128381-128381
标识
DOI:10.1016/j.seppur.2024.128381
摘要

Herein, Iron anchored in carbon–nitrogen nanosheets (Fe-CNx) catalysts were synthesized successfully through one-step in situ pyrolysis for activating peroxymonosulfate (PMS) to degrade sulfachloropyridazine (SCP). Fe-CN800/PMS could realized the complete removal SCP in 20 min (kobs = 0.644 min−1). Its reaction rates were 214.7 times higher than that in PMS system. Additionally, Fe-CN800 could effectively activate PMS in a wide range of pH (3–10.6). The relationship between the content of Fe-CNx functional groups and the catalytic performance indicated that C = O and Fe-N4 were the main active sites. The structural–functional association between active sites and reactive oxygen species (ROS) was revealed by regression analysis and Density Functional Theory calculations, indicating that C = O stimulated 1O2 production, while HV-Fe was derived from C = O and Fe-N4. Moreover, the PMS activation was enhanced via electron transfer between Fe(II) and Fe(III). Based on LC-MS and Fukui index, the action of ROS during SCP decomposition was analyzed, and proposed three probable pathways for SCP degradation. The transformation pattern of the structure and toxicity of the intermediates was revealed via T.E.S.T. analysis, and plant growth experiments showed that the effect of the treated SCP solution on Brassica napus significantly decreased. Finally, Fe-CN800 exhibited excellent stability, with SCP removal remaining above 95 % in five cycles and Fe leaching concentrations lower than ones which have been reported catalysts. This work provided new insights for the precise design of more efficient PMS catalysts. It will provide a fundamental basis for the practical application in wastewater treatment based on PMS-AOPs.
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
大幅提高文件上传限制,最高150M (2024-4-1)

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
李小伟完成签到,获得积分10
刚刚
馨橣发布了新的文献求助10
1秒前
xyy102完成签到,获得积分10
1秒前
wind发布了新的文献求助10
2秒前
3秒前
妮可粒子完成签到,获得积分10
4秒前
4秒前
5秒前
吴彦祖发布了新的文献求助10
7秒前
hehe完成签到,获得积分10
8秒前
慕青应助沙鸥采纳,获得10
8秒前
xgx984发布了新的文献求助10
8秒前
8秒前
清脆的易烟完成签到,获得积分10
9秒前
在水一方应助wind采纳,获得10
9秒前
刻苦的秋玲完成签到,获得积分10
10秒前
852应助怕孤独的树叶采纳,获得10
10秒前
13秒前
world完成签到,获得积分10
15秒前
NW18完成签到,获得积分10
16秒前
帅帅哈发布了新的文献求助10
17秒前
坚强的广山应助lull采纳,获得200
19秒前
19秒前
orixero应助终生学习老张头采纳,获得10
22秒前
ured完成签到,获得积分20
25秒前
倔强的大萝卜完成签到,获得积分0
26秒前
lvsehx发布了新的文献求助10
27秒前
爆米花应助kingripple采纳,获得10
27秒前
27秒前
31秒前
明理思天发布了新的文献求助30
32秒前
byby发布了新的文献求助10
34秒前
lianliyou发布了新的文献求助10
35秒前
GYX完成签到 ,获得积分10
35秒前
科研通AI2S应助lvsehx采纳,获得10
36秒前
可爱邓邓发布了新的文献求助30
36秒前
36秒前
白白完成签到,获得积分20
37秒前
qianzheng应助OO的牛马采纳,获得10
39秒前
guomingqian发布了新的文献求助10
39秒前
高分求助中
Earth System Geophysics 1000
Co-opetition under Endogenous Bargaining Power 666
Studies on the inheritance of some characters in rice Oryza sativa L 600
Medicina di laboratorio. Logica e patologia clinica 600
Handbook of Marine Craft Hydrodynamics and Motion Control, 2nd Edition 500
Sarcolestes leedsi Lydekker, an ankylosaurian dinosaur from the Middle Jurassic of England 500
《关于整治突出dupin问题的实施意见》(厅字〔2019〕52号) 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 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 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3211800
求助须知:如何正确求助?哪些是违规求助? 2860692
关于积分的说明 8125303
捐赠科研通 2526490
什么是DOI,文献DOI怎么找? 1360389
科研通“疑难数据库(出版商)”最低求助积分说明 643200
邀请新用户注册赠送积分活动 615288