Photocatalytic degradation of Rose Bengal using a Z-scheme NiFe2O4/α-Fe2O3 heterojunction composite obtained by the Pechini method

被引：0

作者：

Galvez-Barbosa, S. ^{[1
]}

Gonzalez, Luis A. ^{[2
]}

机构：

[1] Univ Michoacana, Inst Invest Met & Mat, Ave Francisco J Muj S-N,Ciudad Univ, Morelia 58030, Michoacan, Mexico

[2] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Ave Ind Metalurg 1062, Ramos Arizpe 25900, Coahuila, Mexico

来源：

MATERIALS LETTERS | 2025年 / 382卷

关键词：

Pechini method; Z-scheme; Heterojunction; Photocatalytic; Rose Bengal; NIFE2O4;

D O I：

10.1016/j.matlet.2024.137898

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigates the relationship between the concentration ratios of Fe:Ni wt% of 60.5:39.5 and 70.5:29.5 in the synthesis of NiFe2O4/alpha-Fe2O3 heterojunction composites (NFHCs) by the Pechini method and their photocatalytic performance for the degradation of Rose Bengal (RB). Results indicate the presence of NiFe2O4 and alpha-Fe2O3 phases in NFHCs formed by octahedral and icosahedral particles with sizes from 20 to 1200 nm. The NFHC, with a Fe:Ni ratio of 70.5:29.5 wt%, achieved a superior RB degradation efficiency of 93 % after 120 min of solar irradiation. This performance was attributed to alpha-Fe2O3 acting as an electron mediator in the Z-scheme heterojunction mechanism.

引用

页数：5

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