A quantum-mechanical study of the structure of inorganic derivatives of hydrogen peroxide

Miroshnichenko, A. G.; Lunenok-Burmakina, V. A.

doi:10.1007/bf00525976

Cited by 13 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with PDS, PMS has recently attracted increasing interests because it is generally easier to be activated via the catalysis of transition metals (e.g., Fe(II), Co(II), Mn(II), Cu(I), and Ti(III), etc.) due to its asymmetrical molecular structure with a lower energy for its lowest unoccupied molecular orbital (LUMO) level. − In addition, PMS has been widely used in many other fields such as in the synthesis of organic chemicals as an oxidizing agent, , in the paper and pulp industry as a bleaching agent, , in pools and spas disinfection as a cleaning agent, , and so on. With the rapidly expanding studies on PMS-related technologies and their promising applications in the above fields, a simple, rapid, and sensitive method is highly desired for the accurate measurement of residual PMS in its oxidation processes and the detection of trace PMS when it is released into natural waters.…”

mentioning

confidence: 99%

Ultrasensitive Fluorescence Detection of Peroxymonosulfate Based on a Sulfate Radical-Mediated Aromatic Hydroxylation

Huang

Qian

et al. 2018

Anal. Chem.

View full text Add to dashboard Cite

Recently, peroxymonosulfate (PMS)-based advanced oxidation processes have exhibited broad application prospects in the environment field. Accordingly, a simple, rapid, and ultrasensitive method is highly desired for the specific recognition and accurate quantification of PMS in various aqueous solutions. In this work, SO 4•− -induced aromatic hydroxylation was explored, and based on that, for the first time, a novel fluorescence method was developed for the PMS determination using Co 2+ as a PMS activator and benzoic acid (BA) as a chemical probe. Through a suite of spectral, chromatographic, and mass spectrometric analyses, SO 4•− was proven to be the dominant radical species, and salicylic acid was identified as the fluorescent molecule. As a result, a whole radical chain reaction mechanism for the generation of salicylic acid in the BA/PMS/Co 2+ system was proposed. This fluorescence method possessed a rapid reaction equilibrium (<1 min), an ultrahigh sensitivity (detection limit = 10 nM; quantification limit = 33 nM), an excellent specificity, and a wide detection range (0−100 μM). Moreover, it performed well in the presence of possible interfering substances, including two other peroxides (i.e., peroxydisulfate and hydrogen peroxide), some common ions, and organics. The detection results for real water samples further validated the practical utility of the developed fluorescence method. This work provides a new method for the specific recognition and sensitive determination of PMS in complex aqueous solutions.

show abstract

mentioning

confidence: 99%

Ultrasensitive Fluorescence Detection of Peroxymonosulfate Based on a Sulfate Radical-Mediated Aromatic Hydroxylation

Huang

Qian

et al. 2018

Anal. Chem.

View full text Add to dashboard Cite

show abstract

“…These results imply that PMS possessed a unique reactivity toward the oxidation of p -ASA. Since the standard reduction potential of PMS is not the highest among those of the three commonly used peroxides ( E 0 S 2 O 8 2– /SO 4 2– = 2.01 V, E 0 HSO 5 – /HSO 4 – = 1.82 V, and E 0 H 2 O 2 /H 2 O = 1.78 V), this unique reactivity of PMS might stem from its lower energy for the lowest unoccupied molecular orbital (LUMO) level, which was beneficial for its obtaining electrons from p -ASA. Despite the direct degradation of p -ASA by PMS, the total As could not be removed from water in the homogeneous reaction, which would still remain a threat to the environment.…”

Section: Resultsmentioning

confidence: 99%

Interface-Promoted Direct Oxidation of p-Arsanilic Acid and Removal of Total Arsenic by the Coupling of Peroxymonosulfate and Mn-Fe-Mixed Oxide

Huang

Mei

et al. 2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

As one of the extensively used feed additives in livestock and poultry breeding, p-arsanilic acid (p-ASA) has become an organoarsenic pollutant with great concern. For the efficient removal of p-ASA from water, the combination of chemical oxidation and adsorption is recognized as a promising process. Herein, hollow/porous Mn–Fe-mixed oxide (MnFeO) nanocubes were synthesized and used in coupling with peroxymonosulfate (PMS) to oxidize p-ASA and remove the total arsenic (As). Under acidic conditions, both p-ASA and total As could be completely removed in the PMS/MnFeO process and the overall performance was substantially better than that of the Mn/Fe monometallic system. More importantly, an interface-promoted direct oxidation mechanism was found in the p-ASA-involved PMS/MnFeO system. Rather than activate PMS to generate reactive oxygen species (i.e., SO4 ·–, ·OH, and 1O2), the MnFeO nanocubes first adsorbed p-ASA to form a ligand–oxide interface, which improved the oxidation of the adsorbed p-ASA by PMS and ultimately enhanced the removal of the total As. Such a direct oxidation process achieved selective oxidation of p-ASA and avoidance of severe interference from the commonly present constituents in real water samples. After facile elution with dilute alkali solution, the used MnFeO nanocubes exhibited superior recyclability in the repeated p-ASA removal experiments. Therefore, this work provides a promising approach for efficient abatement of phenylarsenical-caused water pollution based on the PMS/MnFeO oxidation process.

show abstract

“…In general, the easiness which an eis transferred to the lower unoccupied molecular orbital (LUMO) of peroxide oxidants is a measurement of its oxidizing properties [65]. Based on the LUMO properties of the oxidants their energy follows the order H2SO5 < H2S2O8 [65], which means, that PMS accepts emore easily than PS and this may be the reason why it outperformed the latter when coupled with TiO2 photocatalysis. To conclude the efficiency order of the tested treatment is UVA/TiO2 < UVA/TiO2/PS < UVA/TiO2/PMS.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Enhancing photocatalytic degradation of the cyanotoxin microcystin-LR with the addition of sulfate-radical generating oxidants

Antoniou

Boraei

Solakidou

et al. 2018

Journal of Hazardous Materials

View full text Add to dashboard Cite

This study investigated the coupling of sulfate radical generating oxidants, (persulfate, PS and peroxymonosulfate, PMS) with TiO photocatalysis for the degradation of microcystin-LR (MC-LR). Treatment efficiency was evaluated by estimating the electrical energy per order (E). Oxidant addition at 4 mg/L reduced the energy requirements of the treatment by 60% and 12% for PMS and PS, respectively compared with conventional photocatalysis. Quenching studies indicated that both sulfate and hydroxyl radicals contributed towards the degradation of MC-LR for both oxidants, while Electron Paramagnetic Resonance (EPR) studies confirmed that the oxidants prolonged that lifetime of both radicals (concentration maxima shifted from 10 to 20 min), allowing for bulk diffusion and enhancing cyanotoxin removal. Structural identification of transformation products (TPs) formed during all treatments, indicated that early stage degradation of MC-LR occurred mainly on the aromatic ring and conjugated carbon double bonds of the ADDA amino acid. In addition, simultaneous hydroxyl substitution of the aromatic ring and the conjugated double carbon bonds of ADDA (m/z = 1027.5) are reported for the first time. Oxidant addition also increased the rates of formation/degradation of TPs and affected the overall toxicity of the treated samples. The detoxification and degradation order of the treatments was UVA/TiO/PMS > UVA/TiO/PS>> UVA/TiO.

show abstract

A quantum-mechanical study of the structure of inorganic derivatives of hydrogen peroxide

Cited by 13 publications

References 6 publications

Ultrasensitive Fluorescence Detection of Peroxymonosulfate Based on a Sulfate Radical-Mediated Aromatic Hydroxylation

Ultrasensitive Fluorescence Detection of Peroxymonosulfate Based on a Sulfate Radical-Mediated Aromatic Hydroxylation

Interface-Promoted Direct Oxidation of p-Arsanilic Acid and Removal of Total Arsenic by the Coupling of Peroxymonosulfate and Mn-Fe-Mixed Oxide

Enhancing photocatalytic degradation of the cyanotoxin microcystin-LR with the addition of sulfate-radical generating oxidants

Contact Info

Product

Resources

About