Effects of Cobalt Salt Precursors on the Characteristics and photo-Fenton Catalytic Performance of Cobalt Ferrite Nanoparticles Synthesized by the Solvothermal Method

被引：2

作者：

Hoa, Le Thi Ngoc ^{[1
,2
,3
]}

Van Hieu, Le ^{[1
,2
,3
]}

Khoa, Le Tien ^{[2
,4
]}

Le Kim Phung, Nguyen ^{[5
]}

An, Vu Nang ^{[1
,2
]}

机构：

[1] Univ Sci, Fac Mat Sci & Technol, VNU HCM, Ho Chi Minh City 700000, Vietnam

[2] Vietnam Natl Univ, Ho Chi Minh City 700000, Vietnam

[3] Univ Sci, VNU HCM, Lab Multifunct Mat, Ho Chi Minh City 700000, Vietnam

[4] Univ Sci, VNU HCM, Fac Biol, Ho Chi Minh City 700000, Vietnam

[5] Vietnam Acad Sci & Technol VAST, Inst Trop Biol, Ho Chi Minh City 700000, Vietnam

来源：

WATER AIR AND SOIL POLLUTION | 2023年 / 234卷 / 10期

关键词：

Solvothermal; Cobalt ferrite; Cobalt salt precursors; Photo-Fenton process; METHYLENE-BLUE; DEGRADATION; NANOCOMPOSITES; MECHANISMS; ADSORPTION; REMOVAL; DYE;

D O I：

10.1007/s11270-023-06660-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, three cobalt salt precursors (nitrate, chloride, and sulfate) were used to synthesize magnetic cobalt ferrite nanoparticles (CoFe2O4, CFO NPs) via a solvothermal method. The research revealed that choosing precursors could aid in regulating the crystalline structure, particle size, surface area, and magnetism of our CFO powders, which strongly affect their photo-Fenton catalytic performance. Accordingly, the CFO sample prepared using sulfate precursors shows the lowest particle size (146.5 +/- 27.9 nm), the largest surface area (96.469 m2/g), and the best magnetism (Ms = 76 emu/g). As a result, this sample exhibits the best photo-Fenton catalytic activity for the degradation of methylene blue under UVA irradiation (efficiency of 92.3% after 30 min and rate constant of 5.25 +/- 0.22 h-1). Furthermore, it had good reusability after five cycles, making it promising for practical applications in the remediation of textile dye effluent.

引用

页数：13

共 60 条

[1] Adsorption studies of hazardous malachite green onto treated ginger waste [J].