亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Coupling adsorption and in-situ Fenton-like oxidation by waste leather-derived materials in continuous flow mode towards sustainable removal of trace antibiotics

吸附 跟踪(心理语言学) 原位 联轴节(管道) 废物管理 流量(数学) 环境化学 环境科学 材料科学 化学 化学工程 冶金 工程类 有机化学 机械 物理 哲学 语言学
作者
Chenying Zhou,Hongyu Zhou,Yue Yuan,Jiali Peng,Gang Yao,Peng Zhou,Bo Lai
出处
期刊:Chemical Engineering Journal [Elsevier BV]
卷期号:420: 130370-130370 被引量:33
标识
DOI:10.1016/j.cej.2021.130370
摘要

• Waste leather derived biochar based adsorptive catalysts (WLBC) were synthesized. • A myriad of • OH can be produced via WLBC mediated Fenton-like reactions. • Recovery of adsorption capability was achieved by degrading surface-enriched SMX. • Coupling adsorption and in-situ oxidation achieves sustainable removal of trace SMX. • SMX degradation pathways were proposed based on LC-QTOF-MS results. The gap of pollutant concentration between simulated sewage (mg/L level) and actual water (μg/L level) strongly limits the application of advanced oxidation processes (AOPs) in natural waters. By coupling adsorption for gathering trace organic contaminants and in-situ catalytic oxidation for recovering adsorption capability, adsorptive catalysts can build a bridge between theoretical research and practical application to promote scientific progress of AOPs. Here, waste leather derived biochar based adsorptive catalysts (WLBC) can effectively adsorb trace sulfamethoxazole (SMX) via electrostatic attraction, hydrophobic interaction, π-π interaction, and Van der Waals forces, moreover, the subsequent in-situ oxidation of surface SMX by hydroxyl radical ( • OH) generated from WLBC mediated Fenton-like reaction will recover the adsorption capability of WLBC. Compared with persulfate-driven AOPs, • OH-dominated oxidation is nonselective for various pollutants and effective for adsorbent regeneration. In addition, the pathway of SMX degradation was proposed based on the results of liquid chromatography-quadrupole time of flight-mass spectrometer (LC-QTOF-MS), involving four stages of 1) nitration, hydroxylation, and hydrolytic reaction of SMX, 2) cleavage of S-N and S-C bonds, 3) ring-opening, 4) mineralization. The adsorption and in-situ Fenton-like oxidation system established by WLBC is capable of efficiently degrading trace pollutants and regenerating adsorbent for long-scale operation, which immunes largely from coexisting substances (e.g. anions, cations, and humic acid) with extremely low metal leaching and relatively low cost. Therefore, this study proposes a strategy for sustainable removal of trace organic pollutant in natural waters based on coupling WLBC induced adsorption and in-situ Fenton-like oxidation.
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
欣欣完成签到 ,获得积分10
10秒前
柳行天完成签到 ,获得积分10
36秒前
量子星尘发布了新的文献求助10
42秒前
52秒前
Djnsbj发布了新的文献求助10
1分钟前
sinan发布了新的文献求助10
2分钟前
WerWu完成签到,获得积分10
2分钟前
2分钟前
2分钟前
2分钟前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
量子星尘发布了新的文献求助10
2分钟前
2分钟前
dara997发布了新的文献求助10
2分钟前
dara997完成签到,获得积分10
3分钟前
辣椒油完成签到,获得积分20
3分钟前
3分钟前
3分钟前
4分钟前
4分钟前
4分钟前
田様应助科研通管家采纳,获得10
4分钟前
量子星尘发布了新的文献求助10
4分钟前
4分钟前
隐形曼青应助noob_采纳,获得10
5分钟前
哈哈哈发布了新的文献求助10
5分钟前
5分钟前
noob_发布了新的文献求助10
5分钟前
科研通AI5应助哈哈哈采纳,获得10
5分钟前
青山完成签到,获得积分10
5分钟前
5分钟前
5分钟前
sunshinelwt发布了新的文献求助10
5分钟前
量子星尘发布了新的文献求助10
5分钟前
5分钟前
去晒月亮完成签到,获得积分20
5分钟前
5分钟前
伯赏元彤发布了新的文献求助10
5分钟前
去晒月亮发布了新的文献求助10
6分钟前
6分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976665
求助须知:如何正确求助?哪些是违规求助? 3520770
关于积分的说明 11204786
捐赠科研通 3257528
什么是DOI,文献DOI怎么找? 1798733
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806629