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You W, Li Y, He D, Zeng Y, Zhu J, You X, Wang K, Zhou G, Peng G. Activation of peroxymonosulfate by pyrophosphate for the degradation of AO7 at neutral pH. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:47549-47560. [PMID: 35184240 DOI: 10.1007/s11356-021-15391-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 07/07/2021] [Indexed: 06/14/2023]
Abstract
In the present study, pyrophosphate (PP) was used to activate peroxymonosulfate (PMS) for acid orange 7 (AO7) removal under neutral pH conditions. The removal rate of AO7 (20 mg/L) was 84% within the reaction time with a rate constant value of 0.0165 min-1 under optimum conditions. Additionally, the effects of the concentrations of PMS and PP in solutions with various pH values and the coexisting inorganic anions on AO7 removal were measured. In addition, the performance of phosphate (P(V)) on PMS activation was compared with that of phosphite (P(III)) species. In contrast to P(III), the concentration of P(V) showed a positive correlation with the efficiency of AO7 decolorization. PMS activation in different types of buffer solutions was also examined, and the results indicated that the decolorization efficiency of AO7 induced by PP addition, and the buffer solution also contributed to PMS self-decomposition. Singlet oxygen (1O2) might be the primary reactive oxygen species (ROS) in the PP/PMS system in which AO7 is decolorized at an initial pH of 7.06, as indicated by quenching experiments and electron spin resonance (ESR) tests. Therefore, PP/PMS systems may be promising technologies for removing organic contaminants, particularly for PP-rich electroplating wastewater.
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Affiliation(s)
- Wenqiao You
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Youlin Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Dandan He
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Youmei Zeng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Jiangwei Zhu
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiaofeng You
- Fuling People's Hospital of Chongqing, Chongqing, 408099, China
| | - Kang Wang
- Fuling Central Hospital of Chongqing City, Chongqing, 408099, China
| | - Guangming Zhou
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
| | - Guilong Peng
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400715, China.
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Kaur J, Singh PK. Nanomaterial based advancement in the inorganic pyrophosphate detection methods in the last decade: A review. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Baykov AA, Anashkin VA, Malinen AM. Good-Practice Non-Radioactive Assays of Inorganic Pyrophosphatase Activities. Molecules 2021; 26:molecules26082356. [PMID: 33919593 PMCID: PMC8073611 DOI: 10.3390/molecules26082356] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 01/19/2023] Open
Abstract
Inorganic pyrophosphatase (PPase) is a ubiquitous enzyme that converts pyrophosphate (PPi) to phosphate and, in this way, controls numerous biosynthetic reactions that produce PPi as a byproduct. PPase activity is generally assayed by measuring the product of the hydrolysis reaction, phosphate. This reaction is reversible, allowing PPi synthesis measurements and making PPase an excellent model enzyme for the study of phosphoanhydride bond formation. Here we summarize our long-time experience in measuring PPase activity and overview three types of the assay that are found most useful for (a) low-substrate continuous monitoring of PPi hydrolysis, (b) continuous and fixed-time measurements of PPi synthesis, and (c) high-throughput procedure for screening purposes. The assays are based on the color reactions between phosphomolybdic acid and triphenylmethane dyes or use a coupled ATP sulfurylase/luciferase enzyme assay. We also provide procedures to estimate initial velocity from the product formation curve and calculate the assay medium’s composition, whose components are involved in multiple equilibria.
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Affiliation(s)
- Alexander A. Baykov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119899 Moscow, Russia;
- Correspondence: (A.A.B.); (A.M.M.)
| | - Viktor A. Anashkin
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119899 Moscow, Russia;
| | - Anssi M. Malinen
- Department of Life Technologies, University of Turku, FIN-20014 Turku, Finland
- Correspondence: (A.A.B.); (A.M.M.)
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Determination of atmospheric sulphur dioxide and sulphuric acid traces by indirect flame atomic absorption method. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Furletov A, Apyari V, Garshev A, Dmitrienko S. A Comparative Study on the Oxidation of Label-Free Silver Triangular Nanoplates by Peroxides: Main Effects and Sensing Applications. SENSORS (BASEL, SWITZERLAND) 2020; 20:s20174832. [PMID: 32867039 PMCID: PMC7506893 DOI: 10.3390/s20174832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/13/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Nowadays, analytical systems based on silver triangular nanoplates (AgTNPs) have been shown as good prospects for chemical sensing. However, they still remain relatively poorly studied as colorimetric probes for sensing various classes of compounds. This study shows that these nanoparticles are capable of being oxidized by peroxides, including both hydrogen peroxide and its organic derivatives. The oxidation was found to result in a decrease in the AgTNPs' local surface plasmon resonance band intensity at 620 nm. This was proposed for peroxide-sensitive spectrophotometric determination. Five peroxides differing in their structure and number of functional groups were tested. Three of them easily oxidized AgTNPs. The effects of a structure of analytes and main exterior factors on the oxidation are discussed. The detection limits of peroxides in the selected conditions increased in the series peracetic acid < hydrogen peroxide < tert-butyl hydroperoxide, coming to 0.08, 1.6 and 24 μmol L-1, respectively. tert-Butyl peroxybenzoate and di-tert-butyl peroxide were found to have no effect on the spectral characteristics of AgTNPs. By the example of hydrogen peroxide, it was found that the determination does not interfere with 100-4000-fold quantities of common inorganic ions. The proposed approach was successfully applied to the analysis of drugs, cosmetics and model mixtures.
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Affiliation(s)
- Aleksei Furletov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (V.A.); (A.G.); (S.D.)
| | - Vladimir Apyari
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (V.A.); (A.G.); (S.D.)
| | - Alexey Garshev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (V.A.); (A.G.); (S.D.)
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia
| | - Stanislava Dmitrienko
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (V.A.); (A.G.); (S.D.)
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Salem JK, Draz MA. Synthesis and application of silver nanorods for the colorimetric detection of sulfate in water. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107900] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Cacho F, Masac J, Zakhar R, Beinrohr E. Indirect electrochemical determination of sulfates in mineral water by a flow-through system. Talanta 2020; 207:120281. [PMID: 31594605 DOI: 10.1016/j.talanta.2019.120281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/14/2019] [Accepted: 08/19/2019] [Indexed: 10/26/2022]
Abstract
The paper describes the indirect determination of sulfates by in-electrode coulometric indication method. The principle of the determination of sulfates consists in the on-line coupling of the exchange column filled with barium chromate and the flow-through coulometric analyser. In the column BaCrO4(s) converts to BaSO4(s) according to the equation: BaCrO4(s)+SO42-(aq)→BaSO4(s)+CrO42-(aq). This conversion is caused by the lower solubility of BaSO4(s) compared to the solubility of BaCrO4(s). Subsequently, the concentration of the chromate in the eluate solution was determined by the in-electrode coulometric indication method in the electrode made of reticulated vitreous carbon. The solution flowing out of the column was mixed in the flow-through analyser with 0.4 mol L-1 hydrochloric acid and the concentration of chromates was determined by direct reduction of Cr(VI) to Cr(III) with a constant current. The determination was evaluated by the calibration curve method. The linear range of the calibration curve was 3.9-100 mg L-1. The detection limit and the accuracy were 1.3 mg L-1 and 3.2%, respectively. The interference of the bicarbonate was eliminated through a conversion to insoluble carbonate by boiling the sample. The procedure was validated by analyses of certified reference material and bottled mineral water samples. A good agreement with the ion chromatography was achieved for all samples.
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Affiliation(s)
- Frantisek Cacho
- Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, 812 37, Bratislava, Slovakia.
| | - Jakub Masac
- Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, 812 37, Bratislava, Slovakia
| | - Ronald Zakhar
- Institute of Chemical and Environmental Engineering, Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, 812 37, Bratislava, Slovakia
| | - Ernest Beinrohr
- Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, 812 37, Bratislava, Slovakia
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Apyari V, Terenteva E, Kolomnikova A, Garshev A, Dmitrienko S, Zolotov Y. Potentialities of differently-stabilized silver nanoparticles for spectrophotometric determination of peroxides. Talanta 2019; 202:51-58. [DOI: 10.1016/j.talanta.2019.04.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/19/2019] [Accepted: 04/21/2019] [Indexed: 10/27/2022]
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Apyari VV, Dmitrienko SG, Gorbunova MV, Furletov AA, Zolotov YA. Gold and Silver Nanoparticles in Optical Molecular Absorption Spectroscopy. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819010052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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