Nanostructured 3D Sunflower-like Bismuth Doped BiOClxBr1-x Solid Solutions with Enhanced Visible Light Photocatalytic Activity as a Remarkably Efficient Technology for Water Purification

Hani Gnayem, Yoel Sasson*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Following our report on the fabrication of BiOClxBr1-x (0 ≥ x ≥ 1) alloys, and via careful rational optimization and substantial tuning, we upgraded the previous photocatalytic system by means of a controlled doping with elemental bismuth particles. The latter leads to the formation of well-defined structures characterized by effective separation of electron-hole pairs and more reductive photoexcited electrons. These advanced semiconductors, specifically heterojunctioned doped alloys, were synthesized via a simple soft chemical route at room temperature and used for demonstrating the enhanced and complete mineralization of recalcitrant organic contaminants in water such as toluene, benzene, chlorobenzene, xylene, terephthalic acid, and benzoquinone. The molecular photocatalytic mechanism of the above degradation processes was thoroughly elucidated.

Original languageAmerican English
Pages (from-to)19201-19209
Number of pages9
JournalJournal of Physical Chemistry C
Volume119
Issue number33
DOIs
StatePublished - 20 Aug 2015

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

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