Effect of Cu2+ Ions Substitution on Structure and Photocatalytic Activity of CuxNi1−xFe2O4 Nanoparticles

• Published in: Arabian journal for science and engineering (2011) Vol. 49; no. 6; pp. 8475 - 8488
• Main Authors: Nguyen, Loan T. T., Vu, Hoa T., Duong, Anh T. T., Vu, Nhuong V., Ngo, Viet T. M., Pham, Thanh T. H., Nguyen, Hai Q., Tran, Toan Q., Nguyen, Ngoan Thi Thao, Tran, Thuan Van
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-06-2024; Springer Nature B.V
• Subjects: Catalysts; Catalytic activity; Chemical oxygen demand; Copper; Drinking water; Dyes; Engineering; Humanities and Social Sciences; multidisciplinary; Nickel ferrites; Photocatalysis; Photodegradation; Research Article-Chemical Engineering; Rhodamine; Science; Photodegradation; Cu; Chemical oxygen demand; Ni; Rhodamine B; Dye pollution; Fe; O
• ISSN: 2193-567X; 1319-8025; 2191-4281
• DOI: 10.1007/s13369-024-08987-7

Photocatalytic degradation is a promising emerging method for eliminating dye from contaminated water. The core of photocatalytic degradation lies in the design and preparation of high-performance catalysts that do not produce polluting secondary products. Here, we explore magnetic NiFe
2
O
4
materials doped with varying amounts of Cu
2+
ions (Cu
x
Ni
1−
x
Fe
2
O
4
, where
x
 = 0–0.5) via the combustion method to target rhodamine B (RhB) dye removal. To validate whether Cu
2+
is incorporated, the structural characteristics of the catalysts were analyzed using physical techniques. The photocatalytic activity of Cu
x
Ni
1−
x
Fe
2
O
4
(
x
 = 0–0.5) was evaluated based on the degradation of RhB, achieving 97.25% degradation efficiency under optimized conditions. The radical quenching results revealed that
•
OH played a pivotal factor in the photodegradation process. Additionally, chemical oxygen demand (COD) testing yielded a level of 24.67 mg L
−1
, significantly lower than the World Health Organization (WHO) drinking water standards. Overall, our findings reached high photocatalytic activity of Cu
0.5
Ni
0.5
Fe
2
O
4
in removing a harmful dye (RhB) from water.