首页|Linker gadolinium as charge channel and singlet oxygen activation site in graphitic carbon nitride for enhancing photocatalytic decomposition of tetracycline

Linker gadolinium as charge channel and singlet oxygen activation site in graphitic carbon nitride for enhancing photocatalytic decomposition of tetracycline

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Reactive oxygen species are essential in photocatalytic water treatment.In this paper,Gd doped carbon nitride(CN)photocatalysts were prepared by simple thermal polymerization for the photocatalytic degradation of tetracycline under visible light irradiation.The photodegradation rate of 1.0GdCN is as high as 95％in 18 min,and the photocatalytic performance is much higher than that of CN.The improvement of photocatalytic performance is mainly attributed to the fact that Gd ion implantation directly provides active sites for oxygen activation and induces the formation of N vacancies.The results of characterizations show that the introduction of Gd in CN can improve the conversion ability of acti-vated oxygen,carrier separation and energy band structure adjustment.Therefore,1.0GdCN photo-catalyst can be employed for efficient photocatalytic synthesis of tetracycline.Furthermore,three ways of photocatalytic degradation of tetracycline were revealed by high performance liquid chromatography-mass spectrometry.This work provides insights into the doping strategy of CN to improve the produc-tion of reactive oxygen species for environmental remediation.

PhotocatalysisTetracyclineHydrogen peroxideGd doped CNSinglet oxygenRare earths

Jianmin Luo、Wenqin Li、Xinglei Wang、Eric Lichtfouse、Donglan Huang、Xiaoyuan Chen、Yi Zhang、Lejie Zhu、Chuanyi Wang

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College of Chemistry and Civil Engineering,Shaoguan University,Shaoguan,512005,China

Key Laboratory of Pollutant Chemistry and Environmental Treatment,College of Chemistry and Environmental Science,Yili Normal University,Yining,835000,China

College of Chemistry and Environmental Science,Kashi University,Kashi,844006,China

CNRS,IRD,INRAE,Coll France,CEREGE,Aix-Marseille University,Aix en Provence,13100,France

Guangzhou Institute of Industrial Intelligence(GⅢ),Guangzhou,511400,China

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国家重点研发计划Natural Science Foundation of Xinjiang Uygur Auonomous RegionGuangdong Basic and Applied Basic Research FoundationGuangdong Basic and Applied Basic Research FoundationGuangdong Province Scientific Research Platform ProjectGuangdong Province Scientific Research Platform ProjectGuangdong Province Scientific Research Platform ProjectGuangdong Province Specialized Scientific Research Fund ProjectsHigh Level Talents Introduction Project of"Pearl River Talent Plan"in Guangdong ProvinceShaoguan Science and Technology ProjectsShaoguan Science and Technology ProjectsShaoguan Science and Technology ProjectsSupport Scheme of Guangzhou for Leading Talents in Innovation and Entrepreneurship Funding

2022YFF11008042022D01C4562023A15150117362021A15150106712022ZDZX40462023ZDZX40522020KTSCX13520192019B1212010042019CX01L3082206061545338272306160880319982008110945304402 016015

2024

10.1016/j.jre.2024.02.008

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(5)
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