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Cobalt and holmium co-doped nickel ferrite nanoparticles: synthesis, characterization and photocatalytic application studies

Kashuf ShafiqDepartment of Chemistry, Rahim Yar Khan Campus , The Islamia University of Bahawalpur , Rahim Yar Khan , 64200 , PakistanMuhammad AadilDepartment of Chemistry, Rahim Yar Khan Campus , The Islamia University of Bahawalpur , Rahim Yar Khan , 64200 , PakistanWarda HassanDepartment of Chemistry , The Women University Multan , Multan , 60000 , PakistanQurshia ChoudhryDepartment of Chemistry, School of Materials Science and Engineering , University of Jinan , Jinan , 250022 , P.R. ChinaSafia GulDepartment of Botany , Sardar Bahadur Khan Women’s University , Quetta , PakistanAfroz RaisDepartment of Botany , Sardar Bahadur Khan Women’s University , Quetta , PakistanAlaa A. FattahDepartment of Physics , College of Khurma University College , T aif University , P.O. Box 11099 , Taif 21944 , Saudi Arabia Khaled H. MahmoudDepartment of Physics , College of Khurma University College , T aif University , P.O. Box 11099 , Taif 21944 , Saudi Arabia Mohd Zahid AnsariSchool of Materials Science and Engineering , Yeungnam University , 280 Daehak-Ro , Gyeongsan , Gyeongbuk 38541 , Republic of Korea

2023en

ABI

Annotatsiya

Abstract Herein, nickel ferrite-based photocatalysts with enhanced light utilizing electrical charge transport properties have been reported for environmental remediation applications. The cobalt and holmium co-doped nickel ferrite [Ni 1− x (Co) x Fe 2− y (Ho) y O 4 ] nanoparticles and bare nickel ferrite (NiFe 2 O 4 ) nanoparticles have been prepared via surfactant-supported wet-chemical techniques. The as-prepared ferritic photocatalyst’s structural, morphological, and light harvesting features have been examined in detail using well-known physical, electronic, and optical methods. The co-doped ferrite photocatalyst’s tuned structural features enable it to absorb maximum wavelengths from the U.V. and visible regions. This is because the co-doped Ni 1− x (Co) x Fe 2− y (Ho) y O 4 optical band gap is 1.73 eV; hence, the wavelength from the visible part possesses sufficient energies to trigger the electronic excitation in co-doped ferrite photocatalysts. Moreover, the co-doping-induced structural defects in the ferrite photocatalyst. These defects act as a reservoir for the charge species, mainly electrons, so the process of charge recombination is almost hampered for the Ni 1− x (Co) x Fe 2− y (Ho) y O 4 photocatalyst. In application terms, the photomineralization capabilities of doped and bare ferrite photocatalysts have been explored using crystal violet (CV) dye. The comparative photocatalytic evaluation of both nickel ferrite-based photocatalysts shows that co-doped ferrite degraded 96.02 % of CV dye. In comparison, the undoped one only degraded 64.84 % after 80 min of W-lamp light exposure. The results demonstrated that the Ho and Co co-doped ferrite photocatalyst exhibits excellent photocatalytic activity, suggesting its potential for environmental remediation applications in textile industrial discharges.

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Identifikatorlar

DOI: 10.1515/zpch-2023-0273

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