Experimental and theoretical exploration of bismuth oxyhalide (BiOX, X = Cl, Br, I) nanoparticles in thermoelectric, optoelectronic, and photocatalytic applications

RSC Advances 2026 Open access

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Authors: Imran Hossain Sabuj, Quazi Shafayat Hossain, Sadiq Shahriyar Nishat, Sharmin Jahan, M. N. I. Khan, Umme Sarmeen Akhtar, Muhammad Shahriar Bashar, Dipa Islam, Zakir Sultan, Sharmin Jahan, Khandker Saadat Hossain, Sazzad M. S. Imran
+1 more Imtiaz Ahmed
DOI: 10.1039/d5ra07838e
Cited by: 8
References: 75

Abstract

turned out to be 0.51, 0.76, and 1.49 near 990 K in BiOCl, BiOBr, and BiOI, respectively, indicating them as promising thermoelectric materials. The photoluminescence emissions of BiOCl, BiOBr, and BiOI were detected in the opto-electronically favorable visible ranges of 366-521, 335-658, and 393-658 nm, respectively. The theoretical electronic band alignment analysis of BiOX facilitated the straddling of the relevant redox potentials, supporting the photocatalytic degradation of rhodamine B dye. In essence, this work provides comprehensive information on functional properties of BiOX nanoparticles relevant in thermoelectric, optoelectronic, and photocatalytic applications with a combined DFT-experimental approach.

Fields of Study & Subjects

Advanced Photocatalysis Techniques Advanced Thermoelectric Materials and Devices Gas Sensing Nanomaterials and Sensors

Publication details

Journal / source
RSC Advances
Publisher
Royal Society of Chemistry (RSC)
Volume
16
Issue
4
Pages
3648–3661
Publication date
1 January 2026
Language
EN