A new method for the preparation of FeIV and comparison with the performance of FeO42−
Haoda Guo A , Linhao Fan A and Naidong Zhang
A *
A
Abstract
FeO32− acted as a highly effective water-purifying agent and exhibited superior performance compared with FeO42−. The traditional synthesis method of FeO32− requires challenging reaction conditions. This study focused on the environmentally friendly synthesis of green Na2FeO3 crystals using sodium hypochlorite as a medium by a concentration method under depressurisation. In an alkaline hypochlorite system, infrared spectroscopy, ultraviolet–visible (UV-Vis) spectroscopy, X-ray diffraction and Mössbauer spectroscopy revealed that, under different OH− concentrations and temperatures, hypochlorite can oxidise FeIII to FeO32−. Na2FeO3 served as a highly effective water-purifying agent and was superior to K2FeO4 in the treatment of oil-recovery wastewater. Na2FeO3 and K2FeO4 reacted similarly to organic compounds as determined by UV-Vis spectroscopy. Additionally, it is less expensive to synthesise Na2FeO3 compared with K2FeO4.
Keywords: characterisation, ferrateIV, ferrateVI, K2FeO4, Na2FeO3, NaClO, preparation, water treatment chemicals.
References
1 McBeath ST, Zhang Y, Hoffmann MR. Novel synthesis pathways for highly oxidative iron species: generation, stability, and treatment applications of ferrate(IV/V/VI). Environ Sci Technol 2023; 57(47): 18700-18709.
| Crossref | Google Scholar | PubMed |
2 Dong F, Fu C, Feng M. Simultaneous generation of free radicals, Fe(IV) and Fe(V) by ferrate activation: a review. Chem Eng J 2024; 481: 148669.
| Crossref | Google Scholar |
3 Pan B, Zhou L, Qin J, Wang C, Ma X, Sharma VK. Oxidation of micropollutants by visible light active graphitic carbon nitride and ferrate(VI): delineating the role of surface delocalized electrons. Chemosphere 2022; 307: 135886.
| Crossref | Google Scholar |
4 Pan B, Feng M, McDonald TJ, Manoli K, Wang C, Huang C-H, Sharma VK. Enhanced ferrate(VI) oxidation of micropollutants in water by carbonaceous materials: elucidating surface functionality. Chem Eng J 2020; 398: 125607.
| Crossref | Google Scholar |
5 Pan B, Liao M, Zhao Y, Lv Y, Qin J, Sharma VK, Wang C. Visible light activation of ferrate(VI) by oxygen doped ZnIn2S4/black phosphorus nanolayered heterostructure: accelerated oxidation of trimethoprim. J Hazard Mater 2023; 460: 132413.
| Crossref | Google Scholar |
6 Pan B, Feng M, Qin J. Iron(V)/Iron(IV) species in graphitic carbon nitride-ferrate(VI)-visible light system: enhanced oxidation of micropollutants. Chem Eng J 2022; 428: 132610.
| Crossref | Google Scholar |
7 Kopelev NS, Perfiliev YD, Kiselev YM. Mössbauer study of sodium ferrates(IV) and (VI). J Radioanal Nucl Chem 1992; 162: 239-251.
| Crossref | Google Scholar |
8 Martinez-Tamayo E, Beltrán-Porter A, Beltrán-Porter D. Iron compounds in high oxidation states: I. The reaction between BaO2 and FeSO4. Thermochim Acta 1985; 91: 249-263.
| Crossref | Google Scholar |
9 Guo HD, Zhang XX, Zhang ND. Ferrate(IV) synthesis using derived persulfate during treatment of oil recovery wastewater. Environ Technol 2024; 46(4): 629-635.
| Crossref | Google Scholar |
10 Jeannot C, Malaman B, Gerardin R. Synthesis, crystal and magnetic structures of the sodium ferrate(IV) Na4FeO4 studied by neutron diffraction and Mössbauer techniques. J Solid State Chem 2002; 165(2): 266-277.
| Crossref | Google Scholar |
11 Petrov LV, Solyanikov VM. Reaction of tert-butyl hypochlorite with carbonium ion from styrene epoxide in an acidic alcoholic solution. Russ Chem Bull 2012; 61(1): 40-44.
| Crossref | Google Scholar |
12 Eltaweil AS, Bakr SS, Abd El-Monaem EM, El-Subruiti GM. Magnetic hierarchical flower-like Fe3O4@ZIF-67/CuNiMn-LDH catalyst with enhanced redox cycle for Fenton-like degradation of Congo red: optimization and mechanism. Environ Sci Pollut Res Int 2023; 30(30): 75332-75348.
| Crossref | Google Scholar | PubMed |
13 Guo HD, Wang YF, Zhang ND. Treatment of oilfield wastewater and synthesis of Na2FeO3 in a chloride ion anode oxidation system. Environ Sci Water Res Technol 2024; 10(3): 614-619.
| Crossref | Google Scholar |
14 Zheng HL, Deng LL, Ji FY, Jiang SJ, Zhang P. 高铁酸钾制备新方法与光谱表征 [A new method for the preparation of potassium ferrate and spectroscopic characterisation.]. 光谱学与光谱分析 [Spectroscopy and Spectral Analysis] 2010; 30(10): 2646-2649 [In Chinese].
| Crossref | Google Scholar | PubMed |
15 Abd El-Monaem EM, Eltaweil AS, El-Subruiti GM, Mohy-Eldin MS, Omer AM. Adsorption of nitrophenol onto a novel Fe3O4-κ-carrageenan/MIL-125(Ti) composite: process optimization, isotherms, kinetics, and mechanism. Environ Sci Pollut Res Int 2023; 30: 49301-49313.
| Crossref | Google Scholar | PubMed |
16 Mabayoje O, Seredych M, Bandosz TJ. Cobalt (hydr)oxide/graphite oxide composites: importance of surface chemical heterogeneity for reactive adsorption of hydrogen sulfide. J Colloid Interface Sci 2012; 378(1): 1-9.
| Crossref | Google Scholar | PubMed |
17 Sharma VK, Feng M, Dionysiou DD, Zhou HC, Jinadatha C, Manoli K, Smith MF, Luque R, Ma X, Huang CH. Reactive high-valent iron intermediates in enhancing treatment of water by ferrate. Environ Sci Technol 2022; 56(1): 30-47.
| Crossref | Google Scholar | PubMed |
