TY - JOUR
T1 - Chemical-Vapor-Deposition-Synthesized Two-Dimensional Non-Stoichiometric Copper Selenide (β-Cu2−xSe) for Ultra-Fast Tetracycline Hydrochloride Degradation under Solar Light
AU - Srijith,
AU - Konar, Rajashree
AU - Teblum, Eti
AU - Singh, Vivek Kumar
AU - Telkhozhayeva, Madina
AU - Paiardi, Michelangelo
AU - Nessim, Gilbert Daniel
N1 - Publisher Copyright:
© 2024 by the authors.
PY - 2024/2/17
Y1 - 2024/2/17
N2 - The high concentration of antibiotics in aquatic environments is a serious environmental issue. In response, researchers have explored photocatalytic degradation as a potential solution. Through chemical vapor deposition (CVD), we synthesized copper selenide (β-Cu2−xSe) and found it an effective catalyst for degrading tetracycline hydrochloride (TC-HCl). The catalyst demonstrated an impressive degradation efficiency of approximately 98% and a reaction rate constant of 3.14 × 10−2 min−1. Its layered structure, which exposes reactive sites, contributes to excellent stability, interfacial charge transfer efficiency, and visible light absorption capacity. Our investigations confirmed that the principal active species produced by the catalyst comprises O2− radicals, which we verified through trapping experiments and electron paramagnetic resonance (EPR). We also verified the TC-HCl degradation mechanism using high-performance liquid chromatography–mass spectrometry (LC-MS). Our results provide valuable insights into developing the β-Cu2−xSe catalyst using CVD and its potential applications in environmental remediation.
AB - The high concentration of antibiotics in aquatic environments is a serious environmental issue. In response, researchers have explored photocatalytic degradation as a potential solution. Through chemical vapor deposition (CVD), we synthesized copper selenide (β-Cu2−xSe) and found it an effective catalyst for degrading tetracycline hydrochloride (TC-HCl). The catalyst demonstrated an impressive degradation efficiency of approximately 98% and a reaction rate constant of 3.14 × 10−2 min−1. Its layered structure, which exposes reactive sites, contributes to excellent stability, interfacial charge transfer efficiency, and visible light absorption capacity. Our investigations confirmed that the principal active species produced by the catalyst comprises O2− radicals, which we verified through trapping experiments and electron paramagnetic resonance (EPR). We also verified the TC-HCl degradation mechanism using high-performance liquid chromatography–mass spectrometry (LC-MS). Our results provide valuable insights into developing the β-Cu2−xSe catalyst using CVD and its potential applications in environmental remediation.
KW - 2D materials
KW - antibiotic
KW - chemical vapor deposition
KW - copper selenide
KW - degradation
KW - photocatalysis
UR - http://www.scopus.com/inward/record.url?scp=85185855333&partnerID=8YFLogxK
U2 - 10.3390/molecules29040887
DO - 10.3390/molecules29040887
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C2 - 38398638
AN - SCOPUS:85185855333
SN - 1420-3049
VL - 29
JO - Molecules
JF - Molecules
IS - 4
M1 - 887
ER -