首页|Coupling N-doping and confined Co3O4 on carbon nanotubes by polydopamine coating strategy for pleiotropic water purification

Coupling N-doping and confined Co3O4 on carbon nanotubes by polydopamine coating strategy for pleiotropic water purification

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The development of effective and sustainable solutions for pleiotropic water purification becomes urgent and attractive.Heterogeneous Fenton-like catalysts for activation of peroxymonosulfate(PMS)to purify organic wastewater show great promise.In this work,by tuning metal loading with an in-situ polydopamine coating strat-egy,oxygen vacancy-enriched Co3O4 loading on N-doped carbon nanotubes(CNTs)were constructed to enhance PMS activation efficiency for pollutants degradation.Impressively,the obtained modified CNTs afford a well-developed N-containing network structure,which is further endowed with abundant Co(Ⅱ)/Co(Ⅲ)redox cycles and significant metal-carbon interactions.In particular,the surface N doping in CNTs might induce the oriented enrichment of pollutants around the catalyst,which reduces the migration distance and correspondingly improves the utilization of reactive oxidative species.The electron transfer efficiency of the catalyst can be further improved by incorporating oxygen vacancy-enriched Co3O4.The performance results show that the optimal NC/Co-1 could mineralize 20 × 10-6 of bisphenol A(BPA)by almost 98％in 8 min.A low reaction activation energy(26.05 kJ·mol-1)in BPA degradation was demonstrated by the NC/Co-1.More importantly,NC/Co-1 can inherit excellent degradation performance towards oxytetracy-cline,2,4-dichlorophenol,and tetracycline,showing wide practical flexibility.In addition,by virtue of the pho-tothermal conversion property,NC/Co-1 achieves an additive function for interfacial solar water evaporation(1.84 kg·m-2·h-1,112.51％),showing impressive potential for clean water recovery under complicated environmental pollution conditions.

Carbon nanotubeAdvanced oxidation processCo3O4Photothermal conversionSolar water evaporation

Wen-Long Tu、Gang Wang、Yue Zhang、Hong-Yang Zhu、Rong-Rong Du、Hong-Yao Zhao、Sheng Tang、Zeng-Jing Guo、Jun Yang、Fu Yang、Cheng-Zhang Zhu

展开 >

School of Environmental and Chemical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China

School of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252000,China

School of Material Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China

School of Environmental Science and Engineering,Nanjing Tech University,Nanjing 211816,China

展开 >

China National Natural Science FoundationNational Key Research and Development Program of ChinaJiangsu Provincial Founds for Young ScholarsNatural Science Foundation of Jiangsu Higher Education Institutions of ChinaInternational Cooperation Foundation for the Chunhui Plan Program of Ministry of Education of Chinasupport of characterizations from Instrumental Analysis Center,Jiangsu University of Science and Technology

2018080852022YFB3504100BK2019096122KJB610012HZKY20220136

2024

10.1007/s12598-024-02661-5

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(7)
  • 3