Phase-Effect of Bi2O3 in Photocatalytic Degradation of 2-Chlorophenol via a Preferential Dechlorination Pathway | Sciact - CRIS-system of Boreskov Institute of Catalysis

Phase-Effect of Bi2O3 in Photocatalytic Degradation of 2-Chlorophenol via a Preferential Dechlorination Pathway Full article

Journal

New Journal of Chemistry
ISSN: 1144-0546 , E-ISSN: 1369-9261

Output data

Year: 2026, DOI: 10.1039/d5nj04273a

Authors

Jin Xingyu ¹ , Wang Ying ¹ , Wang Limin ¹ , Yan Rui ^2,1 , Kozlova Ekateria ³ , Li Zhijun ¹ , Qu Binhong ¹ , Qu Yang ¹ , Jing Liqiang ¹

Affiliations

1	Key Laboratory of Functional Inorganic Materials Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, International Joint Research Center for Catalytic Technology, Harbin 150080, P. R. China
2	Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin, 150025, China
3	Federal Research Center, Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia

Photocatalytic preferential dechlorination of high-environmental-risk 2-chlorophenol (2-CP) is highly desired. Although Bi2O3 has previously displayed a preferential dechlorination pathway of 2-CP, the phase-effect of Bi2O3 remains ambiguous. Here, one dimensional (1D) α- and β-Bi2O3 photocatalysts were prepared by using bismuth metal organic framework (CAU-17) microrods as the template, of which β-Bi2O3 microrods were obtained via a bicarbonate-induced transformation route and α-Bi2O3 microrods were prepared through a direct pyrolysis route. Multi-pronged characterization confirmed that β-Bi2O3 microrods have a larger surface area and a narrower band gap compared with α-Bi2O3 microrods. As expected, β-Bi2O3 microrods showed a 2-fold higher photocatalytic activity for degrading 2-CP under white-light LED irradiation, with higher mineralization than α-Bi2O3 microrods. According to liquid chromatography tandem mass spectrometry, radical trapping experiments and ion chromatography, both α-Bi2O3 and β-Bi2O3 displayed a hole-induced photocatalytic preferential dechlorination of 2-CP, resulting in the conversion of chlorine into chloride ions.

Jin X. , Wang Y. , Wang L. , Yan R. , Kozlova E. , Li Z. , Qu B. , Qu Y. , Jing L.
Phase-Effect of Bi2O3 in Photocatalytic Degradation of 2-Chlorophenol via a Preferential Dechlorination Pathway
New Journal of Chemistry. 2026. DOI: 10.1039/d5nj04273a OpenAlex

Submitted:	Oct 31, 2025
Accepted:	Dec 30, 2025
Published online:	Dec 30, 2025

OpenAlex:

W7117588690

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