[1]胡 凯,聂鹂尧,李丛杨,等.硫代硫酸钠辅助磷掺杂生物炭活化过硫酸盐降解扑热息痛[J].南京师大学报(自然科学版),2023,46(02):122-130.[doi:10.3969/j.issn.1001-4616.2023.02.016]
　Hu Kai,Nie Liyao,Li Congyang,et al.Phosphorus-Doped Biochar Activates Persulfate to Eliminate Paracetamol with the Assistance of Sodium Thiosulfate[J].Journal of Nanjing Normal University(Natural Science Edition),2023,46(02):122-130.[doi:10.3969/j.issn.1001-4616.2023.02.016]
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硫代硫酸钠辅助磷掺杂生物炭活化过硫酸盐降解扑热息痛()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第46卷
期数:
2023年02期
页码:
122-130
栏目:
环境科学与工程
出版日期:
2023-06-15

文章信息/Info

Title:
Phosphorus-Doped Biochar Activates Persulfate to Eliminate Paracetamol with the Assistance of Sodium Thiosulfate
文章编号:
1001-4616(2023)02-0122-09
作者:
胡 凯1; 聂鹂尧1; 李丛杨2; 汪昊睿1; 王国祥1; 史宸菲1
(1.南京师范大学环境学院,江苏省环境演变与生态建设重点实验室,江苏 南京 210023)
(2.南京工程学院计算机工程学院,江苏 南京 211167)
Author(s):
Hu Kai1; Nie Liyao1; Li Congyang2; Wang Haorui1; Wang Guoxiang1; Shi Chenfei1
(1.School of Environment,Nanjing Normal University,Jiangsu Key Laboratory of Environmental Change and Ecological Construction,Nanjing 210023,China)
(2.School of Computer Engineering,Nanjing Institute of Technology,Nanjing 211167,China)
关键词:
扑热息痛; 磷掺杂生物炭; 过硫酸盐; 硫代硫酸盐
Keywords:
paracetamol;  phosphorus-doped biochar;  persulfate;  thiosulfate
分类号:
X505
DOI:
10.3969/j.issn.1001-4616.2023.02.016
文献标志码:
A
摘要:
近年来,个人药品和护理品等新兴污染物的去除技术备受关注. 本研究选用硫代硫酸钠(TS)辅助磷掺杂生物炭活化过硫酸盐(PS)技术实现了常用解热镇痛药扑热息痛(PAT)的快速去除. 结果表明,磷掺杂生物炭不能有效活化过硫酸盐,但TS的加入显著提高了PAT的去除效率,PS、TS和磷掺杂生物炭之间存在显著的协同效应. 磷源对生物炭的效能存在显著影响,与磷酸氢二铵相比,磷酸氢二钠改性生物炭表现出更好的活化PS作用. 在一定氯离子浓度(0～10 mmol·L-1)和pH(4.0～10.0)范围内,PAT的降解去除率均达到80%以上. 淬灭实验、电子顺磁共振(EPR)测定和离子分析表明,体系中自由基(SO4·-和·OH)和单线态氧均不是主要的活性物种,电子转移等非自由基路径可能是导致PAT降解的原因. 这种新体系的发现为PAT的降解及高级氧化技术的发展提供了新思路.
Abstract:
In recent years, much attention has been attracted in the eliminate of emerging pollutants such as personal pharmaceuticals and care products. In this study, phosphorus-doped biochars were adopted to activate persulfate(PS)with the assistance of sodium thiosulfate(TS)to eliminate paracetamol(PAT), which was one of commonly used antipyretic and analgesic drugs. The phosphorus-doped biochar alone could not activate persulfate effectively, and the elimination efficiency of PAT could be improved significantly after the addition of TS, indicating that a significant synergistic effect existed between PS, TS and phosphorus-doped biochar. The source of phosphorus exhibited a significant effect on the performance of biochar. In contrast to diammonium hydrogen phosphate, disodium hydrogen phosphate modified biochar showed better activation effect on PS. The degradation and elimination efficiency of PAT could reach 80% within a certain range of chloride ions concentration(0-10 mmol·L-1)and pH(4.0-10.0). Quenching experiments, electron paramagnetic resonance(EPR)measurements and sulfate ion analysis indicated that free radicals(SO4·-和·OH)and singlet oxygen(1O2)were not the main reactive species in the system, and non-radical pathways such as electron transfer may be responsible for the degradation of PAT. This study might provide a new idea for the degradation of PAT and the development of advanced oxidation process.

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备注/Memo

备注/Memo:
收稿日期:2022-07-13.
基金项目:江苏省农业科技自主创新资金项目(CX(21)3165).
通讯作者:史宸菲,博士,副教授,研究方向:碳材料在水污染控制与资源化领域中的应用. E-mail:schenfei@njnu.edu.cn
更新日期/Last Update: 2023-06-15