Dual Z-scheme heterojunction Ce 2 Sn 2 O 7 /Ag 3 PO 4 /V@g-C 3 N 4 for increased photocatalytic degradation of the food additive tartrazine, in the presence of persulfate: Kinetics, toxicity, and density functional theory studies.

Autor: Prasanna SB; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan., Kumar GS; Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 100-715, Republic of Korea., Sakthivel R; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan., Shanthakumar KC; Department of Chemistry, SJCE, JSS Science and Technology University, Karnataka 570006, India., Lin LY; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan., Duann YF; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan., Lin YC; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan; School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore., Lu YC; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan; ZhongSun Co., LTD, New Taipei City 220031, Taiwan., Chung RJ; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan; High-value Biomaterials Research and Commercialization Center, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan. Electronic address: rjchung@ntut.edu.tw.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2024 Sep 01; Vol. 356, pp. 124196. Date of Electronic Publication: 2024 May 23.
DOI: 10.1016/j.envpol.2024.124196
Abstrakt: This study involved the synthesis of a Ce 2 Sn 2 O 7 /Ag 3 PO 4 /V@g-C 3 N 4 composite through hydrothermal methods, followed by mechanical grinding. The resulting heterojunction exhibited improved catalytic activity under visible light by effectively separating electrons and holes (e - /h + ). The degradation of Tartrazine (TTZ) reached 93.20% within 50 min by employing a ternary composite at a concentration of 10 mg L -1 , along with 6 mg L -1 of PS. The highest pseudo-first-order kinetic constant (0.1273 min -1 and R 2  = 0.951) was observed in this system. The dual Z-scheme heterojunction is developed by Ce 2 Sn 2 O 7 , Ag 3 PO 4 , and V@g-C 3 N 4 , and it may increase the visible light absorption range while also accelerating charge carrier transfer and separation between catalysts. The analysis of the vulnerability positions and degradation pathways of TTZ involved the utilization of density functional theory (DFT) and gas chromatography-mass spectrometry (GC-MS) to examine the intermediate products. Therefore, Ce 2 Sn 2 O 7 /Ag 3 PO 4 /V@g-C 3 N 4 is an excellent ternary nanocomposite for the remediation of pollutants.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Databáze: MEDLINE
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