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Nemez DB, Lewis C, Trokajlo P, Liang Y, Goldman D, Motnenko I, Herbert DE. A Titration Method for Standardization of Aqueous Sodium Chlorite Solutions Using Thiourea Dioxide. ACS OMEGA 2023; 8:39616-39624. [PMID: 37901495 PMCID: PMC10600884 DOI: 10.1021/acsomega.3c05490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/21/2023] [Indexed: 10/31/2023]
Abstract
Accurate and cost-effective methods for the analysis of oxychlorine compounds in water are critical to modern chlorine-based water treatment. With alternatives to elemental chlorine and hypochlorite bleaches growing in popularity, simple quantification methods for the disinfectant chlorine dioxide (ClO2) in water, as well as chlorite (ClO2-) and chlorate (ClO3-), which are commonly used precursors in ClO2 generation, are required. However, currently, regulated standard methods require specialized equipment and do not effectively discriminate between molecular and ionic species. In this contribution, we present a simple titration-based method for chlorite determination in water using commercially available and easy-to-handle reagents. Specifically, chlorite is reduced with a slight excess of thioureadioxide (TUD). The remaining reductant is then back-titrated against a known amount of potassium permanganate, affording calculatable chlorite concentrations through measured consumption of a reductant and a clear visual endpoint upon accumulation of excess KMnO4. Straightforward methods for chlorite standardization with reasonable error and accuracy for field and/or lab application have the potential to greatly enhance quality assurance and therefore assist in resource deployment in water treatment.
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Affiliation(s)
- Dion B. Nemez
- Department
of Chemistry, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - Casey Lewis
- Osorno
Enterprises Inc., 976
Elgin Ave, Winnipeg, Manitoba R3E 1B4, Canada
| | - Peter Trokajlo
- Department
of Chemistry, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - Yuming Liang
- Osorno
Enterprises Inc., 976
Elgin Ave, Winnipeg, Manitoba R3E 1B4, Canada
| | - Dov Goldman
- Osorno
Enterprises Inc., 976
Elgin Ave, Winnipeg, Manitoba R3E 1B4, Canada
| | - Irena Motnenko
- Osorno
Enterprises Inc., 976
Elgin Ave, Winnipeg, Manitoba R3E 1B4, Canada
| | - David E. Herbert
- Department
of Chemistry, University of Manitoba, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
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2
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Lei B, Wang C, Zhang R, Xue Z, Chen F. One-step removal of hexavalent chromium in wide pH range using thiourea dioxide: the role of reactive species. RSC Adv 2023; 13:10693-10702. [PMID: 37025666 PMCID: PMC10072199 DOI: 10.1039/d3ra00520h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 03/28/2023] [Indexed: 04/08/2023] Open
Abstract
One-step removal of hexavalent chromium in a wide pH range is of great significance. In this paper, a single thiourea dioxide (TD) and two-components thiourea dioxide/ethanolamine (MEA) were used as a green reducing agent for the efficient removal of Cr(vi), respectively. The reduction of Cr(vi) and the precipitation of Cr(iii) were carried out simultaneously under this reaction system. The experimental results proved that TD was activated by amine exchange reaction with MEA. In other words, MEA promoted the generation of an active isomeride of TD by changing the equilibrium position of the reversible reaction. After adding MEA, the removal rate of Cr(vi) and total Cr could reach industrial water discharge standards in a wide pH range of 8-12. The change of pH, reduction potential and the decomposition rate of TD were investigated in the reaction processes. Meanwhile, reductive and oxidative reactive species were produced simultaneously during this reaction process. Further, oxidative reactive species (O2˙- and 1O2) were beneficial for the decomplexation of Cr(iii) complexes and the formation of Cr(iii) precipitation. The experimental results also demonstrated that TD/MEA was effective in practical industrial wastewater. Hence this reaction system has a significant industrial application prospect.
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Affiliation(s)
- Bin Lei
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing, Wuhan Textile University Wuhan 430073 Hubei China +86-27-59367336 +86-27-59367336
| | - Chaoyang Wang
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing, Wuhan Textile University Wuhan 430073 Hubei China +86-27-59367336 +86-27-59367336
| | - Ran Zhang
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing, Wuhan Textile University Wuhan 430073 Hubei China +86-27-59367336 +86-27-59367336
- College of Chemistry and Chemical Engineering, Wuhan Textile University Wuhan 430073 Hubei China
| | - Zhiyong Xue
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing, Wuhan Textile University Wuhan 430073 Hubei China +86-27-59367336 +86-27-59367336
- College of Chemistry and Chemical Engineering, Wuhan Textile University Wuhan 430073 Hubei China
| | - Feifei Chen
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing, Wuhan Textile University Wuhan 430073 Hubei China +86-27-59367336 +86-27-59367336
- College of Chemistry and Chemical Engineering, Wuhan Textile University Wuhan 430073 Hubei China
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3
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Versatility of thiourea dioxide as redox agent in globins: case study with myoglobin. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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4
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Basoccu F, Cuccu F, Caboni P, De Luca L, Porcheddu A. Mechanochemistry Frees Thiourea Dioxide (TDO) from the 'Veils' of Solvent, Exposing All Its Reactivity. Molecules 2023; 28:molecules28052239. [PMID: 36903485 PMCID: PMC10005452 DOI: 10.3390/molecules28052239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023] Open
Abstract
The synthesis of nitrogen-based heterocycles has always been considered essential in developing pharmaceuticals in medicine and agriculture. This explains why various synthetic approaches have been proposed in recent decades. However performing as methods, they often imply harsh conditions or the employment of toxic solvents and dangerous reagents. Mechanochemistry is undoubtedly one of the most promising technologies currently used for reducing any possible environmental impact, addressing the worldwide interest in counteracting environmental pollution. Following this line, we propose a new mechanochemical protocol for synthesizing various heterocyclic classes by exploiting thiourea dioxide (TDO)'s reducing proprieties and electrophilic nature. Simultaneously exploiting the low cost of a component of the textile industry such as TDO and all the advantages brought by a green technique such as mechanochemistry, we plot a route towards a more sustainable and eco-friendly methodology for preparing heterocyclic moieties.
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Affiliation(s)
- Francesco Basoccu
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Federico Cuccu
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Pietro Caboni
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
| | - Lidia De Luca
- Department of Chemical, Physical, Mathematical, and Natural Sciences, University of Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Andrea Porcheddu
- Department of Chemical and Geological Sciences, University of Cagliari, 09042 Monserrato, Italy
- Correspondence:
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5
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Medvedko S, Ströbele M, Wagner JP. Synthesis of Sterically Encumbered Thiourea S-Oxides through Direct Thiourea Oxidation. Chemistry 2023; 29:e202203005. [PMID: 36279187 PMCID: PMC10107457 DOI: 10.1002/chem.202203005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Indexed: 11/07/2022]
Abstract
Thiourea S-oxides can be viewed as formal analogs of the currently unknown diamino-substituted Criegee intermediates (urea O-oxides). However, the preparation of such S-oxides is rather challenging, and the direct oxidation of thioureas typically only leads to formation of desulfurized products. Employing the accurate revDSD-PBEP86-D4 double hybrid density functional, it was found that the peracid mediated oxidation of thiourea S-oxides exhibits a lower reaction barrier than the oxidation of the corresponding thiourea itself in contrast to most other ordinary thioketones. The undesired overoxidation reactivity, which is associated with strong π-donation from the thiourea's nitrogen atoms, can be partially suppressed by introduction of bulky substituents and the utilization of protic solvents. In this regard, we managed to prepare two sterically encumbered thiourea S-oxides in isolated yields of 35-40 %. The S-oxides are stable in the solid state and in alcoholic solutions at room temperature for extended periods of time, but swiftly decompose in aprotic solvents by disproportionation. A dimesityl-substituted thiourea S-oxide complexed with residual mCBA could be characterized by means of X-ray crystallography, confirming the importance of hydrogen bonding in the stabilization of the amino-substituted C=S+ -O- moiety.
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Affiliation(s)
- Serhii Medvedko
- Institut für Organische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.,Department of Organic Chemistry, National Technical University of Ukraine, Igor Sikorsky Kyiv Polytechnic Institute, Peremohy Ave 37, 03056, Kyiv, Ukraine
| | - Markus Ströbele
- Institut für Anorganische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - J Philipp Wagner
- Institut für Organische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
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6
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Kaushik J, Tripathi KM, Singh R, Sonkar SK. Thiourea-functionalized graphene aerogel for the aqueous phase sensing of toxic Pb(II) metal ions and H 2O 2. CHEMOSPHERE 2022; 287:132105. [PMID: 34826890 DOI: 10.1016/j.chemosphere.2021.132105] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/06/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
A simpler approach of functionalization for the fabrication of thiourea-functionalized-Graphene Aerogel (t-GA) is described here. Graphene Aerogel (GA) was synthesized from bio-mass, which on a simpler oxidative treatment get converted to its water-soluble version due to the impregnation of several oxygenous functionalities like carboxylic, hydroxyl, etc. Further, these carboxylated groups have been functionalized with the molecules of thiourea using the long known dicyclohexylcarbodiimide (DCC) as a coupling agent. The as-synthesized t-GA shows bright yellow fluorescence with a quantum yield of ~3% and holds the high-aqueous solubility and photostability. The fluorescence property of t-GA has been used here for the specific and selective sensing of toxic lead (Pb(II)) metal ions from the used many other metal ions via the fluorescence quenching and showed a limit of detection ~7.3 nM. Further, the mechanism for selective sensing was studied in detail and found to be preferable via ligand to metal charge transfer quenching mechanism. The cyclic voltammetry studies supported the selective sensing of Pb(II). Moreover, t-GA has also been studied for the sensing of hydrogen peroxide and as a yellow fluorescent ink.
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Affiliation(s)
- Jaidev Kaushik
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, 302017, Rajasthan, India
| | - Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam, 530003, Andhra Pradesh, India
| | - Ravindra Singh
- Department of Chemistry, Maharani Shri Jaya Government Post-Graduate College, Bharatpur, Rajasthan, 321001, India
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, 302017, Rajasthan, India.
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7
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Zhao X, Yang Y, Xu J, Wang X, Guo Y, Liu C, Zhou J. Lignin condensation inhibition and antioxidant activity improvement in a reductive ternary DES fractionation microenvironment by thiourea dioxide self-decomposition. NEW J CHEM 2022. [DOI: 10.1039/d2nj00821a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deep eutectic solvents (DESs) as promising green solvents can efficiently remove the lignin component in lignocellulosic biomass.
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Affiliation(s)
- Xin Zhao
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Yingying Yang
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Jingyu Xu
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Xing Wang
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Yanzhu Guo
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Chao Liu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, P. R. China
| | - Jinghui Zhou
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, P. R. China
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8
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Nakamura T, Tsukizawa T, Oya M. Combined Use of Reducing Agents and Biodegradable Chelating Agent for Iron Rust Removal. J Oleo Sci 2022; 71:493-504. [DOI: 10.5650/jos.ess21297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tatsuya Nakamura
- Graduate School of Environment and Information Sciences, Yokohama National University
| | - Toru Tsukizawa
- Graduate School of Environment and Information Sciences, Yokohama National University
| | - Masaru Oya
- Graduate School of Environment and Information Sciences, Yokohama National University
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9
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Hu Y, Li W, Wang G, Pan C, Ji C, Gao Q. Kinetics on the Oxidation of Aminoiminomethanesulfonic Acid by Hypochlorous Acid: A Novel Product in the Chlorination of Aminoiminomethanesulfonic Acid. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ying Hu
- Department of Chemistry, School of Science China Pharmaceutical University Nanjing 211198, Jiangsu province P. R. China
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Wei Li
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Guichang Wang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and the Tianjin Key Lab and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Changwei Pan
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Chen Ji
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
| | - Qingyu Gao
- School of Chemical Engineering China University of Mining and Technology Xuzhou 2221111, Jiangsu province P. R. China
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10
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Mary YS, Mary YS, Bielenica A, Armaković S, Armaković SJ, Chandramohan V, Dammalli M. Investigation of the reactivity properties of a thiourea derivative with anticancer activity by DFT and MD simulations. J Mol Model 2021; 27:217. [PMID: 34218339 DOI: 10.1007/s00894-021-04835-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 06/23/2021] [Indexed: 11/27/2022]
Abstract
Spectroscopic analysis of 1-(2-fluorophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea (FPTT) is reported. Experimental and theoretical analyses of FPTT, with molecular dynamics (MD) simulations, are reported for finding different parameters like identification of suitable excipients, interactions with water, and sensitivity towards autoxidation. Molecular dynamics and docking show that FPTT can act as a potential inhibitor for new drug. Additionally, local reactivity, interactivity with water, and compatibility of FPTT molecule with frequently used excipients have been studied by combined application of density functional theory (DFT) and MD simulations. Analysis of local reactivity has been performed based on selected fundamental quantum-molecular descriptors, while interactivity with water was studied by calculations of radial distribution functions (RDFs). Compatibility with excipients has been assessed through calculations of solubility parameters, applying MD simulations. Graphical abstract Reactive sites identified.
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Affiliation(s)
| | | | - Anna Bielenica
- Department of Biochemistry, Medical University of Warsaw, 02-097, Warszawa, Poland
| | - Stevan Armaković
- Faculty of Sciences, Department of Physics, University of Novi Sad, Trg D. Obradovića 4, Novi Sad, 21000, Serbia
| | - Sanja J Armaković
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg D. Obradovića 3, Novi Sad, 21000, Serbia
| | - Vivek Chandramohan
- Department of Biotechnology, Siddaganga Institute of Technology, Tumakuru, Karnataka, 572103, India
| | - Manjunath Dammalli
- Department of Biotechnology, Siddaganga Institute of Technology, Tumakuru, Karnataka, 572103, India
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11
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Zhang B, Zhang L, Wang H, Wang X. Lessons Learned from the Explosion that Occurred during the Synthesis of Diaminomethanesulfonic Acid: Discussion and Preventative Strategies. ACS CHEMICAL HEALTH & SAFETY 2021. [DOI: 10.1021/acs.chas.1c00021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bo Zhang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- Department of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lei Zhang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Hongshuang Wang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Xiaohui Wang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- Department of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
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12
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Mohite AR, Phatake RS, Dubey P, Agbaria M, Shames AI, Lemcoff NG, Reany O. Thiourea-Mediated Halogenation of Alcohols. J Org Chem 2020; 85:12901-12911. [DOI: 10.1021/acs.joc.0c01431] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Amar R. Mohite
- Department of Natural Sciences, The Open University of Israel, Ra’anana 4353701, Israel
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ravindra S. Phatake
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Pooja Dubey
- Department of Natural Sciences, The Open University of Israel, Ra’anana 4353701, Israel
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Mohamed Agbaria
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Alexander I. Shames
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ofer Reany
- Department of Natural Sciences, The Open University of Israel, Ra’anana 4353701, Israel
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13
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Khan E, Khan S, Gul Z, Muhammad M. Medicinal Importance, Coordination Chemistry with Selected Metals (Cu, Ag, Au) and Chemosensing of Thiourea Derivatives. A Review. Crit Rev Anal Chem 2020; 51:812-834. [DOI: 10.1080/10408347.2020.1777523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ezzat Khan
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Sikandar Khan
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Zarif Gul
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Mian Muhammad
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
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14
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Synthesis of pure and C/S/N co-doped Titania on Al mesh and their photocatalytic usage in Benzene degradation. Sci Rep 2019; 9:16648. [PMID: 31719659 PMCID: PMC6851378 DOI: 10.1038/s41598-019-53189-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 10/24/2019] [Indexed: 11/09/2022] Open
Abstract
Pure and co-doped Titania thin films were prepared on aluminum substrates through the sol-gel method. The co-doped sample showed higher photocatalytic activity on benzene degradation compared to pure TiO2 under visible light illumination. XRD results showed the anatase phase for both TiO2 and co-doped TiO2 lattices with an average crystalline size of 12.9 and 10.4 nm, respectively. According to the UV-visible absorption spectra results, co-doped Titania showed higher visible light absorption compared to pure Titania. The synergistic effect of dopants caused a redshift to visible light absorption and also the lifetime of the photogenerated electron-hole were increased by induced electron levels in Titania lattice. The novelty of this study is the reactor's specific design. We employed Al mesh as thin film substrate for 3 main reasons, first, the large surface area of the Al mesh causes to increase specific surface area of the photocatalysts, also it is a formable substrate which can be engineered geometrically to decrease the shadow spots so the thin films will receive the highest light irradiation. Also, the Al mesh flexibility facilitates the procedure of reactor design to reach a minimum pressure drop of airflow while it is installed in the air conditioners or HVAC systems.
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15
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Csekö G, Gao Q, Pan C, Xu L, Horváth AK. On the Kinetics and Mechanism of the Thiourea Dioxide-Periodate Autocatalysis-Driven Iodine-Clock Reaction. J Phys Chem A 2019; 123:7582-7589. [PMID: 31407900 DOI: 10.1021/acs.jpca.9b06207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The thiourea dioxide-periodate reaction has been investigated under acidic conditions using phosphate buffer within the pH range of 1.1-2.0 at 1.0 M ionic strength adjusted by sodium perchlorate. Absorbance-time series are monitored as a function of time at 468 nm, the isosbestic point of the I2-I3- system. The profile of these kinetic runs follows either sigmoidal-shaped or rise-and-fall traces depending on the initial concentration ratio of the reactants. The clock species iodine appears after a well-defined but reproducible time lag even in substrate excess, meaning that the system may be classified as an autocatalysis-driven clock reaction. It is also demonstrated that the age of the thiourea dioxide solution markedly shortens the Landolt time, suggesting that the original form of thiourea dioxide (TDO) rearranges into a more reactive form and reacts faster than the original one. The behavior found is consistent with that recently observed in other oxidation reactions of TDO. To characterize the system quantitatively, a 22-step kinetic model is constructed from adapting the kinetic model of the TDO-iodate reaction published recently by supplementing it with six different reactions of periodate. By the help of seven fitted rate coefficients a sound agreement between the measured and calculated absorbance-time traces is obtained.
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Affiliation(s)
- György Csekö
- College of Chemical Engineering , China University of Mining and Technology , Xuzhou 221116 , People's Republic of China.,Department of Inorganic Chemistry, Faculty of Sciences , University of Pécs , Ifjúság u. 6 , Pécs H-7624 , Hungary
| | - Qingyu Gao
- College of Chemical Engineering , China University of Mining and Technology , Xuzhou 221116 , People's Republic of China
| | - Changwei Pan
- College of Chemical Engineering , China University of Mining and Technology , Xuzhou 221116 , People's Republic of China
| | - Li Xu
- Department of Chemical Engineering and Technology, School of Chemistry, Biology and Material of Science , East China University of Technology , Nanchang 330013 , Jiangxi Province , People's Republic of China
| | - Attila K Horváth
- Department of Inorganic Chemistry, Faculty of Sciences , University of Pécs , Ifjúság u. 6 , Pécs H-7624 , Hungary
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16
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Shao J, Liu X, Makarov SV, Pei K. The decomposition mechanism for TDO in aqueous solution within 25–95 °C temperature range. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Reactivity of Small Oxoacids of Sulfur. Molecules 2019; 24:molecules24152768. [PMID: 31366103 PMCID: PMC6696132 DOI: 10.3390/molecules24152768] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 01/01/2023] Open
Abstract
Oxidation of sulfide to sulfate is known to consist of several steps. Key intermediates in this process are the so-called small oxoacids of sulfur (SOS)—sulfenic HSOH (hydrogen thioperoxide, oxadisulfane, or sulfur hydride hydroxide) and sulfoxylic S(OH)2 acids. Sulfur monoxide can be considered as a dehydrated form of sulfoxylic acid. Although all of these species play an important role in atmospheric chemistry and in organic synthesis, and are also invoked in biochemical processes, they are quite unstable compounds so much so that their physical and chemical properties are still subject to intense studies. It is well-established that sulfoxylic acid has very strong reducing properties, while sulfenic acid is capable of both oxidizing and reducing various substrates. Here, in this review, the mechanisms of sulfide oxidation as well as data on the structure and reactivity of small sulfur-containing oxoacids, sulfur monoxide, and its precursors are discussed.
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Csekő G, Gao Q, Takács A, Horváth AK. Exact Concentration Dependence of the Landolt Time in the Thiourea Dioxide-Bromate Substrate-Depletive Clock Reaction. J Phys Chem A 2019; 123:3959-3968. [PMID: 30998016 DOI: 10.1021/acs.jpca.9b02025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The thiourea dioxide (TDO)-bromate reaction has been reinvestigated spectrophotometrically under acidic conditions using phosphoric acid-dihydrogen-phosphate buffer within the pH range of 1.1-1.8 at 1.0 M ionic strength adjusted by sodium perchlorate and at 25 °C. The title system shows a remarkable resemblance to the classical Landolt reaction, namely, the clock species (bromine) may only appear after the substrate TDO is completely consumed. Thus, the title system can be classified as substrate-depletive clock reaction. Despite the well-known slow rearrangement characteristic of TDO in acidic solution, it is surprisingly found that the Landolt time of the title reaction does not depend at all on the age of TDO solution applied. It is, however, shown experimentally that the inverse of Landolt time linearly depends on the initial bromate concentration as well as on the square of the hydrogen ion concentration. In addition to this, it is also noticed that dihydrogen phosphate markedly affects the Landolt time as well, and this feature may easily be taken into consideration by the H2PO4- dependence of the rate of bromate-bromide reaction quantitatively. Based on the experiments, a simple three-step kinetic model is proposed from which a complex formula is derived to indicate the exact concentration dependence of the Landolt time.
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Affiliation(s)
- György Csekő
- College of Chemical Engineering , China University of Mining and Technology , Xuzhou 221116 , People's Republic of China
| | - Qingyu Gao
- College of Chemical Engineering , China University of Mining and Technology , Xuzhou 221116 , People's Republic of China
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Shao J, Liu X, Makarov SV, Pei K. TDO structure investigation in aqueous solution by TOF-MS, UV, Raman and quantum chemistry calculations. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1598411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jianzhong Shao
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
| | - Xiaoyun Liu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
| | | | - Kemei Pei
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
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20
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Mendonça PV, Ribeiro JPM, Abreu CMR, Guliashvili T, Serra AC, Coelho JFJ. Thiourea Dioxide As a Green and Affordable Reducing Agent for the ARGET ATRP of Acrylates, Methacrylates, Styrene, Acrylonitrile, and Vinyl Chloride. ACS Macro Lett 2019; 8:315-319. [PMID: 35650835 DOI: 10.1021/acsmacrolett.9b00139] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Thiourea dioxide, a green and inexpensive compound used at industrial scale, was employed as reducing agent for the controlled polymerization of a wide range of monomer families, namely, acrylates (methyl acrylate, 2-hydroxyethyl acrylate, butyl acrylate, methacrylates (2-(dimethylamino)ethyl methacrylate, 2-aminoethyl methacrylate hydrochloride, and methyl methacrylate), styrene, acrylonitrile, and vinyl chloride (nonactivated monomer) by ATRP. Mechanistic studies confirmed that the polymerizations are ruled by the activators regenerated by electron transfer (ARGET) mechanism. It is worth noting that vinyl chloride has never been polymerized by ARGET ATRP. The system proved to be very versatile and robust, working in organic solvents, organic/water mixtures, and aqueous medium at near room temperature with low metal catalyst concentration. Chain extension experiments confirmed the high chain-end functionality of the polymers, allowing the preparation of several well-defined block copolymers.
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Affiliation(s)
- Patrícia V. Mendonça
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE), Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal
| | - Jessica P. M. Ribeiro
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE), Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal
| | - Carlos M. R. Abreu
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE), Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal
| | - Tamaz Guliashvili
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE), Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal
- Cytosorbents Inc. 7 Deer Park Drive, Monmouth Junction, New Jersey 08852, United States
| | - Arménio C. Serra
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE), Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal
| | - Jorge F. J. Coelho
- Centre for Mechanical Engineering Materials and Processes (CEMMPRE), Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790 Coimbra, Portugal
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21
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Csekö G, Gao Q, Xu L, Horváth AK. Autocatalysis-Driven Clock Reaction III: Clarifying the Kinetics and Mechanism of the Thiourea Dioxide-Iodate Reaction in an Acidic Medium. J Phys Chem A 2019; 123:1740-1748. [PMID: 30742444 DOI: 10.1021/acs.jpca.9b00584] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The thiourea dioxide-iodate reaction has been reinvestigated spectrophotometrically under acidic conditions using phosphoric acid-dihydrogen phosphate buffer within the pH range of 1.1-1.8 at 1.0 M ionic strength adjusted by sodium perchlorate and at 25 °C. The system was found to exhibit clock behavior, having a well-defined and reproducible time lag called Landolt time, though elementary iodine may even be detected in substrate excess; hence, under these conditions, the reaction can be classified as an autocatalysis-driven clock reaction. It is clearly demonstrated that the previously proposed kinetic model suffers from serious drawbacks from both theoretical and experimental points of view. The reaction may be characterized by either sigmoidal-shaped or rise-and-fall kinetic traces, depending on the initial concentration ratio of the reactants. Iodide significantly accelerates the appearance of the clock species iodine acting therefore as an autocatalyst. The age of stock TDO solution also has a great, so far completely overlooked impact on the Landolt time. On the basis of evaluating simultaneously the kinetic curves, a 16 step kinetic model including 5 well-known rapidly established equilibria is proposed with 7 fitted rate coefficients in which the rate coefficients of both forms of TDO were determined.
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Affiliation(s)
- György Csekö
- College of Chemical Engineering , China University of Mining and Technology , Xuzhou 221116 , People's Republic of China.,Department of Inorganic Chemistry, Faculty of Sciences , University of Pécs , Ifjúság u. 6 , Pécs , Hungary H-7624
| | - Qingyu Gao
- College of Chemical Engineering , China University of Mining and Technology , Xuzhou 221116 , People's Republic of China
| | - Li Xu
- Department of Chemical Engineering and Technology, School of Chemistry, Biology and Material of Science , East China University of Technology , Nanchang 330013 , Jiangxi Province People's Republic of China
| | - Attila K Horváth
- Department of Inorganic Chemistry, Faculty of Sciences , University of Pécs , Ifjúság u. 6 , Pécs , Hungary H-7624
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Molodtsov PA, Makarova AS, Makarov SV, Kuznetsova AA, Koifman OI. Reaction of Thiourea Dioxide and Hydrogen Peroxide with Coumarin. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218060063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Makarov SV, Kuznetsova АА, Salnikov DS, Kiseleva АG. Effect of Glycine and Monoethanolamine on the Stability and Reductive Activity of Thiourea Dioxide in Aqueous Solutions. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218040060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Wibowo A, Park JM, Liu SC, Khosla C, Spielman DM. Real-Time in Vivo Detection of H 2O 2 Using Hyperpolarized 13C-Thiourea. ACS Chem Biol 2017; 12:1737-1742. [PMID: 28452454 DOI: 10.1021/acschembio.7b00130] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reactive oxygen species (ROS) are essential cellular metabolites widely implicated in many diseases including cancer, inflammation, and cardiovascular and neurodegenerative disorders. Yet, ROS signaling remains poorly understood, and their measurements are a challenge due to high reactivity and instability. Here, we report the development of 13C-thiourea as a probe to detect and measure H2O2 dynamics with high sensitivity and spatiotemporal resolution using hyperpolarized 13C magnetic resonance spectroscopic imaging. In particular, we show 13C-thiourea to be highly polarizable and to possess a long spin-lattice relaxation time (T1), which enables real-time monitoring of ROS-mediated transformation. We also demonstrate that 13C-thiourea reacts readily with H2O2 to give chemically distinguishable products in vitro and validate their detection in vivo in a mouse liver. This study suggests that 13C-thiourea is a promising agent for noninvasive detection of H2O2 in vivo. More broadly, our findings outline a viable clinical application for H2O2 detection in patients with a range of diseases.
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Affiliation(s)
- Arif Wibowo
- Department
of Biochemistry, Stanford University, Stanford, California 94305, United States
| | - Jae Mo Park
- Advanced
Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
- Department
of Radiology, Stanford University, Stanford, California 94305, United States
| | - Shie-Chau Liu
- Department
of Radiology, Stanford University, Stanford, California 94305, United States
| | - Chaitan Khosla
- Department
of Biochemistry, Stanford University, Stanford, California 94305, United States
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
- Stanford
ChEM-H, Stanford University, Stanford, California 94305, United States
| | - Daniel M. Spielman
- Department
of Radiology, Stanford University, Stanford, California 94305, United States
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25
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Dereven’kov IA, Ivlev PA, Salnikov DS, Bischin C, Attia AAA, Silaghi-Dumitrescu R, Makarov SV. Studies of reaction of tetramethylthiourea with hydrogen peroxide: evidence of formation of tetramethylthiourea monoxide as a key intermediate of the reaction. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1321650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ilia A. Dereven’kov
- Department of Food Chemistry, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
| | - Pavel A. Ivlev
- Department of Food Chemistry, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
| | - Denis S. Salnikov
- Department of Food Chemistry, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
| | - Cristina Bischin
- Departamentul de Chimie, Facultatea de Chimie şi Inginerie Chimică, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
| | - Amr A. A. Attia
- Departamentul de Chimie, Facultatea de Chimie şi Inginerie Chimică, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
| | - Radu Silaghi-Dumitrescu
- Departamentul de Chimie, Facultatea de Chimie şi Inginerie Chimică, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
| | - Sergei V. Makarov
- Department of Food Chemistry, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
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26
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Qiao X, Bao Z, Xing H, Yang Y, Ren Q, Zhang Z. Organocatalytic Approach for Transfer Hydrogenation of Quinolines, Benzoxazines and Benzothiazines. Catal Letters 2017. [DOI: 10.1007/s10562-017-2061-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Xu L, Valkai L, Kuznetsova AA, Makarov SV, Horváth AK. Kinetics and Mechanism of the Oxidation of Thiourea Dioxide by Iodine in a Slightly Acidic Medium. Inorg Chem 2017; 56:4680-4688. [PMID: 28338317 DOI: 10.1021/acs.inorgchem.7b00326] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The thiourea dioxide (TDO)-iodine reaction was investigated spectrophotometrically monitoring the consumption of total amount of iodine at 468 nm, at T = 25.0 ± 0.1 °C, and at 0.5 M ionic strength in buffered slightly acidic medium. The nitrogen- and carbon-containing products were found to be ammonium ion and dissolved carbon dioxide, respectively, while from sulfur part sulfate ion was exclusively detected, when fresh TDO solution was used. The stoichiometry of the reaction was established as 2I2 + TDO + 4H2O → SO42- + 2NH4+ + 4I- + CO2 + 4H+ indicating a strict 2:1 stoichiometric ratio. However, using aged TDO solution this stoichiometric ratio is shifted to lower values suggesting the formation of elementary sulfur augmented by the 2TDO + I2 + 4H2O → S + SO42- + 4NH4+ + 2I- + 2CO2 hypothetical limiting stoichiometry. We also confirmed experimentally that in aqueous solution TDO slowly rearranges into an unindentified species. This species then produces elementary sulfur at a later stage of the aging process via subsequent reactions accounting for a loss of reducing power. The direct reaction between TDO and iodine was found to be relatively rapid and completed within seconds in absence of initially added iodide ion. Formation of the latter ion, however, strongly inhibits the oxidation process; hence, the system is autoinhibitory with respect to iodide ion. Furthermore, increase of pH markedly accelerates the reaction as well. These observations suggest that a short-lived steady-state intermediate (iodinated TDO) is produced in a rapid pre-equilibrium, where iodide and hydrogen ions are also involved. A nine-step kinetic model, to be able to describe the most important characteristics of the experimental curves with four fitted parameters, is proposed and discussed.
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Affiliation(s)
- Li Xu
- Department of Inorganic Chemistry, University of Pécs , Ifjúság útja 6, Pécs H-7624, Hungary
| | - László Valkai
- Department of Inorganic Chemistry, University of Pécs , Ifjúság útja 6, Pécs H-7624, Hungary
| | - Alena A Kuznetsova
- Department of Food Chemistry, State University of Chemical Technology , 7 Sheremetevsky Avenue, Ivanovo 153000, Russia
| | - Sergei V Makarov
- Department of Food Chemistry, State University of Chemical Technology , 7 Sheremetevsky Avenue, Ivanovo 153000, Russia
| | - Attila K Horváth
- Department of Inorganic Chemistry, University of Pécs , Ifjúság útja 6, Pécs H-7624, Hungary
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28
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Vlasova EA, Kuznetsova AA, Golovashova ES, Makarov SV. Interaction of hydrogen peroxide and thiourea or its oxides with terephthalic acid. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217040065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Esteves H, Brito TO, Ribeiro-Viana R, de Fátima Â, Macedo F. Tert
-butyl hydroperoxide-promoted guanylation of amines with benzoylthioureas: Mechanistic insights by HRMS and 1
H NMR. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Henrique Esteves
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
| | - Tiago Oliveira Brito
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
| | - Renato Ribeiro-Viana
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
| | - Ângelo de Fátima
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Belo Horizonte Minas Gerais 31270-901 Brazil
| | - Fernando Macedo
- Departamento de Química; Universidade Estadual de Londrina; Rod. Celso Garcia Cid, km. 380, Londrina Paraná 86057-970 Brazil
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31
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Hu Y, Horváth AK, Duan S, Csekő G, Makarov SV, Gao Q. Mechanism Involving Hydrogen Sulfite Ions, Chlorite Ions, and Hypochlorous Acid as Key Intermediates of the Autocatalytic Chlorine Dioxide–Thiourea Dioxide Reaction. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500654] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ying Hu
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 2221111, Jiangsu Province, P. R. China, http://www.cumt.edu.cn
| | - Attila K. Horváth
- Department of Inorganic Chemistry, University of Pécs, Ifjúság u. 6, 7624 Pécs, Hungary, http://www.pte.hu
| | - Sasa Duan
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 2221111, Jiangsu Province, P. R. China, http://www.cumt.edu.cn
| | - György Csekő
- Department of Inorganic Chemistry, University of Pécs, Ifjúság u. 6, 7624 Pécs, Hungary, http://www.pte.hu
| | - Sergei V. Makarov
- State University of Chemistry and Technology, Sheremetevsky str. 7, 153000 Ivanovo, Russia
| | - Qingyu Gao
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 2221111, Jiangsu Province, P. R. China, http://www.cumt.edu.cn
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Gao W, Qi W, Lai J, Qi L, Majeed S, Xu G. Thiourea dioxide as a unique eco-friendly coreactant for luminol chemiluminescence in the sensitive detection of luminol, thiourea dioxide and cobalt ions. Chem Commun (Camb) 2015; 51:1620-3. [DOI: 10.1039/c4cc08904a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thiourea dioxide, a unique reductant that can generate oxygen upon decomposition, has been investigated as an efficient, cost-effective, and stable coreactant.
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Affiliation(s)
- Wenyue Gao
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Wenjing Qi
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Jianping Lai
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Liming Qi
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Saadat Majeed
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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