Nitrogen-Doped Carbon Materials for Persulfate Activation via Electron Transfer Pathways

过硫酸盐 电子转移 碳纤维 兴奋剂 化学 氮气 电子 无机化学 材料科学 化学工程 光化学 催化作用 有机化学 物理 光电子学 量子力学 复合数 工程类 复合材料
作者
Ziyi Jiang,Zhonglian Shi,Chao Li,Huiqing Wang,Yingping Huang,Liqun Ye
出处
期刊:Langmuir [American Chemical Society]
卷期号:40 (39): 20584-20595 被引量:14
标识
DOI:10.1021/acs.langmuir.4c02321
摘要

The incorporation of nitrogen into carbon materials is a strategy that effectively boosts their catalytic potency. Herein, a nitrogen-enriched carbon substance, designated as CN0.6, was synthesized from melamine, serving as a precursor. This substance has been established to act as an efficient catalyst devoid of metals for the activation of peroxymonosulfate (PMS). At a temperature of 25 °C, a concentration of 0.05 g/L CN0.6 along with 1 mM PMS suffices to achieve the complete degradation of concentrated tetracycline hydrochloride (TC) in a short period of 4 min. This enhanced catalytic performance is attributed to the optimal level of nitrogen doping, which elevates the pyrrolic nitrogen content and introduces additional defects characterized by an ID/IG ratio of 1.02. These factors collectively augment the adsorptive capacity for PMS and create a greater number of active sites to facilitate its activation. The dominance of a nonradical electron transfer mechanism in the CN0.6/PMS system has been confirmed through a series of analyses, including radical identification, quenching tests, and electrochemical assessments. Employing high-resolution liquid chromatography coupled with tandem mass spectrometry (LC-MS), the investigation identified three potential degradation routes for TC. Furthermore, the intermediates produced are determined to possess reduced toxicity in comparison to TC. The findings of this study offer a approach to the synthesis of highly efficient nitrogen-doped, metal-free catalysts, presenting a promising strategy for the degradation of environmental pollutants.
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
1秒前
橘子海发布了新的文献求助10
1秒前
优雅的幼丝完成签到,获得积分10
1秒前
fanyizhou完成签到,获得积分10
1秒前
路路完成签到,获得积分10
2秒前
chen1357ying发布了新的文献求助10
2秒前
无极微光应助Kenny采纳,获得20
2秒前
TGH发布了新的文献求助10
2秒前
包容大碗完成签到,获得积分10
3秒前
研友_Raven发布了新的文献求助10
3秒前
bird完成签到,获得积分10
3秒前
化学小学生完成签到,获得积分10
4秒前
健忘水卉发布了新的文献求助10
4秒前
yxy完成签到,获得积分10
4秒前
隐形曼青应助WWW采纳,获得10
4秒前
zx完成签到,获得积分10
5秒前
爱上甜蜜完成签到,获得积分10
6秒前
SEA关闭了SEA文献求助
6秒前
6秒前
6秒前
6秒前
7秒前
过客完成签到 ,获得积分10
7秒前
7秒前
orixero应助一路向北采纳,获得10
7秒前
7秒前
8秒前
orixero应助zx采纳,获得10
8秒前
8秒前
矮小的行云完成签到,获得积分20
8秒前
叮咚完成签到,获得积分10
9秒前
www完成签到,获得积分10
9秒前
Spike发布了新的文献求助10
10秒前
汉堡包应助学术的刘采纳,获得10
10秒前
10秒前
可爱的函函应助高高采纳,获得10
11秒前
李庆发布了新的文献求助10
11秒前
11秒前
claygaohao完成签到,获得积分20
11秒前
11秒前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
Handbook of pharmaceutical excipients, Ninth edition 5000
Aerospace Standards Index - 2026 ASIN2026 2000
Digital Twins of Advanced Materials Processing 2000
Social Cognition: Understanding People and Events 1200
Polymorphism and polytypism in crystals 1000
Signals, Systems, and Signal Processing 610
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 纳米技术 有机化学 物理 生物化学 化学工程 计算机科学 复合材料 内科学 催化作用 光电子学 物理化学 电极 冶金 遗传学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 6037750
求助须知:如何正确求助?哪些是违规求助? 7762143
关于积分的说明 16219032
捐赠科研通 5183699
什么是DOI,文献DOI怎么找? 2774058
邀请新用户注册赠送积分活动 1757163
关于科研通互助平台的介绍 1641548