4.1 Article

Multifunctional La10Si6O27:Tb3+ tailored material for photoluminescence, photocatalysis and electrochemical sensing applications

Journal

APPLIED SURFACE SCIENCE ADVANCES
Volume 14, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.apsadv.2023.100392

Keywords

Lanthanum silicate; Photoluminescence; Photocatalytic activity; Specific capacitance; Multifunctional materials

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La10Si6O27:Tb3+ (1-9 mol%) materials were synthesized and characterized for their photoluminescent, electrochemical, and photocatalytic properties. Even with Tb3+ doping, the materials maintained crystalline and single phases. PL analysis showed tunable emission and maximum intensity at optimized concentration. The La10Si6O27:Tb3+ (9 mol%) electrode demonstrated sensing properties for paracetamol and penegra with an average specific capacitance of 262 Fg(-1). Additionally, the La10Si6O27:Tb3+ (5 mol%) material exhibited photocatalytic activity for the degradation of direct green dyes.
La10Si6O27: Tb3+ (1-9 mol%) materials were synthesized by the combustion method and characterized by PXRD, PL, CV, EIS and UV-Vis spectroscopy to explore its photoluminescent, electrochemical and photocatalytic properties. These materials exhibited crystalline and single phases even after doping Tb3+ ions into the lattice of La10Si6O27. PL analysis confirms a tunable and maximum emission for optimized concentration. Electrochemical analysis shows La10Si6O27:Tb3+ (9 mol%) electrode as a paracetamol and penegra sensing material. The average specific capacitance of this electrode at 10 mVs(-1) was found to be 262 Fg(-1). A Photocatalysis study was performed using La10Si6O27:Tb3+ (5 mol%) material as a photocatalyst for the degradation of direct green dyes. Therefore, La10Si6O27:Tb3+ can be used as a multifunctional material for photoluminescence, photocatalysis, and electrochemical sensing applications.

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