Promoting selective water decontamination via boosting activation of periodate by nanostructured Ru-supported Co3O4 catalysts

Zhang, Kaiting; Ye, Chengsong; Lou, Yao‐Yin; Yu, Xin; Feng, Mingbao

doi:10.1016/j.jhazmat.2022.130058

Cited by 39 publications

(5 citation statements)

References 65 publications

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“…It can be clearly observed that the degradation efficiency of the Mn/Mg@MV-PI system is higher in the pH acidic environment, which was also observed by Jiahui Hu et al [56]. Combined with the results of Kaiting Zhang et al [57], we can presume that the reason for the increase in the degradation efficiency of TPhP due to pH elevation is theoretically supported by the low dissociation constants of the PI acid (pKa 1 = 1.6 and pKa 2 = 8.3) and that the main oxidant form, IO 4 − , is no longer dominant among the many forms of the I ions at pH > 8. From this point, the dominance of PI over persulfate in advanced oxidation systems can be seen.…”

Section: Effect Of Initial Ph and Initial Pi Dosesupporting

confidence: 69%

Myriophyllum Biochar-Supported Mn/Mg Nano-Composites as Efficient Periodate Activators to Enhance Triphenyl Phosphate Removal from Wastewater

Xie,

Chen,

Song

et al. 2024

Materials

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Transition metals and their oxide compounds exhibit excellent chemical reactivity; however, their easy agglomeration and high cost limit their catalysis applications. In this study, an interpolation structure of a Myriophyllum verticillatum L. biochar-supported Mn/Mg composite (Mn/Mg@MV) was prepared to degrade triphenyl phosphate (TPhP) from wastewater through the activating periodate (PI) process. Interestingly, the Mn/Mg@MV composite showed strong radical self-producing capacities. The Mn/Mg@MV system degraded 93.34% TPhP (pH 5, 10 μM) within 150 min. The experimental results confirmed that the predominant role of IO3· and the auxiliary ·OH jointly contributed to the TPhP degradation. In addition, the TPhP pollutants were degraded to various intermediates and subsequent Mg mineral phase mineralization via mechanisms like interfacial processes and radical oxidation. DFT theoretical calculations further indicated that the synergy between Mn and Mg induced the charge transfer of the carbon-based surface, leading to the formation of an ·OH radical-enriched surface and enhancing the multivariate interface process of ·OH, IO3, and Mn(VII) to TPhP degradation, resulting in the further formation of Mg PO4 mineralization.

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Section: Effect Of Initial Ph and Initial Pi Dosesupporting

confidence: 69%

Myriophyllum Biochar-Supported Mn/Mg Nano-Composites as Efficient Periodate Activators to Enhance Triphenyl Phosphate Removal from Wastewater

Xie,

Chen,

Song

et al. 2024

Materials

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“…This is reasonable considering that Ru has multiple high valences (e.g., Ru(V), Ru(VI), Ru(VII), and Ru(VIII)), which were suggested to have high reactivity for chemical oxidation, especially Ru(VI) . The formation of high-valent Ru intermediates was also reported in the combined systems of Ru(III) (or their composites) and other oxidants (e.g., permanganate and peroxymonosulfate). , However, the formation of such metal-based oxidizing species in the homogeneous Ru(III)/PI system was completely distinct from the 1 O 2 -dominated heterogeneous Ru/Co 3 O 4 -activated PI system . Given the electron-transfer mechanisms of high-valent metal oxidants (e.g., Fe(VI) and Mn(VII)) in water decontamination and disinfection, , the related properties of high-valent Ru intermediates were analyzed using the ABTS method.…”

Section: Resultsmentioning

confidence: 87%

“…24,39 However, the formation of such metal-based oxidizing species in the homogeneous Ru(III)/ PI system was completely distinct from the 1 O 2 -dominated heterogeneous Ru/Co 3 O 4 -activated PI system. 26 Given the electron-transfer mechanisms of high-valent metal oxidants (e.g., Fe(VI) and Mn(VII)) in water decontamination and disinfection, 40,41 the related properties of high-valent Ru intermediates were analyzed using the ABTS method. It is generally known that ABTS can be transformed into ABTS •+ during the stepwise electron transfer to high-valent metal oxidants.…”

Section: Ms2 Inactivation Experimentsmentioning

confidence: 99%

“…Recently, advanced oxidation techniques using ultraviolet (UV)/chlorine, ozone, and activation of inert oxidants (e.g., H 2 O 2 , persulfate, peracetic acid, periodate, permanganate, and ferrate(VI)) have been receiving worldwide interest in rapid water disinfection and decontamination. − Among them, periodate (PI) has been considered a promising oxidant owing to its chemical stability and easy transportation. − The main oxidizing species of the activated PI technologies using ultrasonic, UV irradiation, freezing, metal ions, and nanoparticles included hydroxyl radicals ( • OH), superoxide radicals (O 2 •– ), singlet oxygen ( 1 O 2 ), and high-valent metal-oxo species. ,− The fast elimination of organic micropollutants has been reported by activation of PI by Mn(II), Ru(III), and hydroxylamine, while the last system could also achieve efficient inactivation of waterborne bacteria. Particularly, ruthenium(III) (Ru(III)) and related nanocomposites (e.g., Ru/TiO 2 , Ru/CeO 2 , and Ru/Co 3 O 4 ) have been widely demonstrated as highly efficient and stable activators for catalytic water oxidation and water purification, as well as acetaldehyde oxidation in aqueous alkaline medium. − For example, Ru(III) presented excellent activation capability of peracetic acid and permanganate for abating various micropollutants from water in minutes. , More recently, the activation of PI by homogeneous Ru(III) ions was shown to degrade organic pollutants in 1 min. More recently, the activation of PI by homogeneous Ru(III) ion was shown to degrade organic pollutants in 1 min.…”

Section: Introductionmentioning

confidence: 99%

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Ru(III)/Periodate System: Rapid Microbial Inactivation and Micropollutant Abatement in Seconds

Ye,

Zhang,

Sun

et al. 2023

ACS EST Water

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The worldwide presence of microbial and chemical pollutants has greatly threatened natural water ecosystems and public health. However, there are still very limited strategies for the rapid elimination of these hazardous contaminants in water. This study reported that the combination of ruthenium(III) (Ru(III), 10.0 μM) and periodate (PI, 50.0 μM) could inactivate bacteriophage MS2 and bacteria, reduce antibiotic resistance genes, and degrade organic micropollutants in water in seconds. Multiple lines of evidence suggested high-valent Ru-ligand complexes as the dominant oxidizing species in which PI and/or iodate might act as the ligand(s). The mechanistic studies indicated that the Ru(III)/PI-triggered inhibition of host attachment/ genome injection and local membrane damage contributed to a 6 log MS2 and Escherichia coli reduction, respectively, in 10 s. Furthermore, the transformation products of representative emerging micropollutants were characterized, and their stepwise decomposition mechanisms were proposed. Interestingly, the Ru(III)/PI system also achieved high elimination of all of the above coexisting contaminants in real wastewater in 30 s. Taken together, this investigation provides an advanced oxidation strategy, i.e., the Ru(III)/PI system, which is unexpectedly governed by the high-valent Ru-ligand complexes. The proposed technology holds great promise in rapid water decontamination and may be useful in situations where rapid/urgent water treatment is required.

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“…Thermodynamic modeling of phase equilibria and chemical reactions in multicomponent systems is an indispensable part of the development of advanced materials and processes. Oxide-based materials have many applications, such as glass, 1 ceramics, 2,3 reinforcements in metallic matrix composites, 4 thin films and coatings, 5,6 materials for magnetic recording, 7 fuel cells, 8,9 hightemperature superconductors, 10,11 health, 12,13 cement, 14,15 energy storage, 16,17 water decontamination, 18,19 and process metallurgy. 20,21 Despite the large volume of data available, there are numerous important oxide compounds with unknown thermodynamic properties.…”

Section: Introductionmentioning

confidence: 99%

Review and perspective on polyhedron model for estimating thermodynamic properties of oxides

2023

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Knowledge of thermodynamics and phase equilibria of oxidic materials is crucial for advancement in the field of ceramics and glass. With the development of computational thermodynamics, predicting phase diagrams and chemical reactions of multicomponent systems has become possible. However, there are still plenty of oxides, the thermodynamic properties of which have not been identified due to the challenges in conducting experiments. Therefore, a key to the advancement in thermodynamic modeling would be to develop a universal model that can be used to estimate the thermodynamic properties of oxides with reliable extrapolation capacity. Atomistic (or molecular) scale models are still insufficient in predicting the thermodynamic properties of oxides at any scale. Alternatively, among group contribution–based methods, the polyhedron model has presented its potential in the estimation of the thermodynamic properties of ionic crystals. However, this model still demands improvements that increase the model's accuracy and extrapolation capacity. In this paper, the background and the state‐of‐the‐art of polyhedron model will be presented together with its strengths and shortcomings. Subsequently, it will be briefly discussed how the field of artificial intelligence could be exploited to devise the next generation of the polyhedron model, the modified polyhedron model.

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Promoting selective water decontamination via boosting activation of periodate by nanostructured Ru-supported Co3O4 catalysts

Cited by 39 publications

References 65 publications

Myriophyllum Biochar-Supported Mn/Mg Nano-Composites as Efficient Periodate Activators to Enhance Triphenyl Phosphate Removal from Wastewater

Myriophyllum Biochar-Supported Mn/Mg Nano-Composites as Efficient Periodate Activators to Enhance Triphenyl Phosphate Removal from Wastewater

Ru(III)/Periodate System: Rapid Microbial Inactivation and Micropollutant Abatement in Seconds

Review and perspective on polyhedron model for estimating thermodynamic properties of oxides

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