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Visible-light driven tetracycline hydrochloride degradation by nano-lanthanum hydroxide modified carbon nitride: performance, mechanism, and application in real wastewater treatment

文献类型: 外文期刊

作者: Xiong, Jian 1 ; Xu, Hanghang 1 ; Yin, Xuejie 2 ; Yang, Bei 2 ; Petropoulos, Evangelos 3 ; Xue, Lihong 2 ; Yang, Linzhang 2 ; He, Shiying 2 ;

作者机构: 1.Henan Univ Sci & Technol, Coll Chem & Chem Engn, 263, Kaiyuan Ave, Luoyang, Henan, Peoples R China

2.Inst Agr Resources & Environm, Jiangsu Acad Agr Sci, Key Lab Agroenvironm Downstream Yangtze Plain, Minist Agr, 50, Zhongling St, Nanjing, Jiangsu, Peoples R China

3.Newcastle Univ, Sch Engn, Newcastle Upon Tyne NE1 3DY, El Salvador

4.Stantec, Newcastle Upon Tyne NE1 3DY, England

期刊名称:ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY ( 影响因子:5.0; 五年影响因子:5.2 )

ISSN: 2053-1400

年卷期: 2023 年 9 卷 8 期

页码:

收录情况: SCI

摘要: In this study, La(OH)(3)/g-C3N4 photocatalyst was designed for degradation of tetracycline hydrochloride (TCH) under visible light. The impact of different operational factors (dosage, initial TCH concentration, photocatalytic time, temperature, and competing anions and organic matter) on the removal of TCH was analyzed. La(OH)(3)/g-C3N4 exhibits a narrowed bandgap (2.90 eV) and enhanced visible-light absorption, leading to efficient TCH degradation (90.1%) and excellent reuse potential. The degradation intermediates were analyzed by liquid chromatography-mass spectrometry (LC-MS) to deduce the plausible degradation pathways. Quantitative structure activity relationship (QSAR) assessment indicated that the toxicity of the degradation products was greatly reduced. Furthermore, La(OH)(3)/g-C3N4 can simultaneously remove TCH, COD and PO43- from real wastewater by 56.31%, 69.63% and 89.9% respectively, demonstrating its robust potential in water and wastewater engineering and science.

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