Multifunctional Fe-doped carbon dots and metal-organic frameworks nanoreactor for cascade degradation and detection of organophosphorus pesticides

对氧磷 纳米反应器 对硫磷 检出限 降级(电信) 甲基对硫磷 水解 线性范围 杀虫剂 化学 催化作用 有机化学 色谱法 电信 计算机科学 农学 乙酰胆碱酯酶 生物
作者
Xuejuan Ma,Qi Ou,Jiajia Yuan,Jiaojiao Yang,Shuxia Xu,Xinfeng Zhang
出处
期刊:Chemical Engineering Journal [Elsevier BV]
卷期号:464: 142480-142480 被引量:55
标识
DOI:10.1016/j.cej.2023.142480
摘要

Organophosphorus pesticides (OPs) are the most widely used pesticides, hence it is crucial to effectively prevent and control OPs residues for agricultural product safety and ecological development. In this work, the nanoreactor consisting of Fe-doped carbon dots (Fe-CDs) and metal-organic framework (MOF-808) were developed for selective degradation as well as sensitive detection of paraoxon and parathion. MOF-808 was selected as the host and used to rapidly degrade paraoxon due to its excellent organophosphorus hydrolase activity. Fe-CDs were severed as guest molecules not only for photocatalytic degradation of parathion, but also for sensing to detect OPs. Through host–guest interaction, Fe-CDs/MOF-808 and [email protected] were synthesized for cascade degradation and detection of paraoxon and parathion, respectively. Paraoxon and parathion were detoxified by catalytic hydrolysis and photocatalytic degradation by Fe-CDs/MOF-808 and [email protected], respectively. Meanwhile, the fluorescence of the nanocomposites was quenched by the internal filtering effect with 4-nitrophenol (4-NP), the degradation product of OPs. Fe-CDs/MOF-808 has a wide linear range for detection of paraoxon from 0.001 to 360 μM, with a limit of detection (LOD) as low as 0.3 nM. [email protected] exhibited a linear range of 0.01–100 μM for parathion, with an LOD about 3.3 nM. The reliability of the nanoreactor was verified by testing the recovery rate of OPs spiked water sample. Meanwhile, the nanoreactors were applied for degradation and detection of OPs in pakchoi. The OPs in pakchoi can be fully degraded within 5 min, and the analytical results are consistent with those by standard method (HPLC). Therefore, the proposed nanoreactor provides a feasible alternative for effective degradation and timely detection of OPs during agricultural production.
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
tough_cookie完成签到 ,获得积分10
1秒前
彩钢房完成签到,获得积分10
2秒前
MeSs完成签到 ,获得积分10
3秒前
toxikon完成签到,获得积分10
4秒前
一点通完成签到,获得积分10
4秒前
Lei完成签到,获得积分10
5秒前
5秒前
5秒前
常若冰完成签到,获得积分10
5秒前
纯真的元风完成签到,获得积分10
6秒前
哇哈哈哈完成签到,获得积分10
6秒前
清秋1001完成签到 ,获得积分10
7秒前
qq完成签到,获得积分10
8秒前
荒野风发布了新的文献求助10
9秒前
Zxx发布了新的文献求助10
10秒前
11秒前
11秒前
确幸完成签到 ,获得积分10
11秒前
苒苒完成签到,获得积分10
11秒前
12秒前
酷波er应助c123采纳,获得10
12秒前
TIAOTIAO完成签到,获得积分10
14秒前
未晚完成签到 ,获得积分10
14秒前
15秒前
15秒前
天天快乐应助qinglinglie采纳,获得10
15秒前
自由老头应助荒野风采纳,获得10
15秒前
本末倒纸发布了新的文献求助10
16秒前
16秒前
甜蜜老虎完成签到,获得积分10
16秒前
脑洞疼应助帅气的蚊子采纳,获得10
17秒前
你好完成签到 ,获得积分10
18秒前
19秒前
19秒前
XZZ完成签到 ,获得积分10
19秒前
20秒前
21秒前
小阿飞完成签到,获得积分10
22秒前
秀丽的初柔完成签到,获得积分10
22秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 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 4038619
求助须知:如何正确求助?哪些是违规求助? 3576294
关于积分的说明 11375058
捐赠科研通 3306084
什么是DOI,文献DOI怎么找? 1819374
邀请新用户注册赠送积分活动 892698
科研通“疑难数据库(出版商)”最低求助积分说明 815066