Design of Pd-Decorated SrTiO3/BiOBr Heterojunction Materials for Enhanced Visible-Light-Based Photocatalytic Reactivity

Autor:	Leonidas G. Bachas, Elnaz Zeynaloo, Dharmendra Shukla, Joshua L. Cohn, Mary O. Olagunju, Shanta Dhar, Bapurao Surnar, Marc R. Knecht, Elsayed M. Zahran
Rok vydání:	2021
Předmět:	Materials science Nanoparticle Nanotechnology Heterojunction Surfaces and Interfaces Condensed Matter Physics Substrate degradation Electron transfer Electrochemistry Photocatalysis Degradation (geology) General Materials Science Reactivity (chemistry) Spectroscopy Visible spectrum
Zdroj:	Langmuir. 37:11986-11995
ISSN:	1520-5827 0743-7463
Popis:	The development of photocatalytic materials that exploit visible light is imperative for their sustainable application in environmental remediation. While a variety of approaches have been attempted, facile routes to achieve such structures remain limited. In this contribution, a direct route for the production of a SrTiO3/BiOBr/Pd heterojunction is presented that employs a low temperature, sustainable production method. The materials were produced in a two-step process wherein BiOBr nanoplates are fabricated in the presence of the SrTiO3 nanospheres, generating a highly integrated composite material. Pd nanoparticle surface decoration was subsequently employed to facilitate and enhance charge separation lifetimes to optimize reactivity. The structures were fully characterized via a suite of approaches to confirm the final material composition and arrangement. Their reactivity was explored for the degradation of both colored and colorless model environmental pollutants, where the SrTiO3/BiOBr/Pd demonstrated significant reactivity using visible light, leading to substrate degradation in
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c0dad7f548fd5db79ea4c95f371c1478 https://doi.org/10.1021/acs.langmuir.1c01537 Zobrazit plný text záznamu