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Wang C, Cheng T, Zhang D, Pan X. Electrochemical properties of humic acid and its novel applications: A tip of the iceberg. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160755. [PMID: 36513238 DOI: 10.1016/j.scitotenv.2022.160755] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/11/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
The widely existed humic acid (HA) with abundant redox-active groups has been considered to play an important role in biogeochemistry in sediments and soils. Recent studies reported that HA showed great performance in terms of electron transfer capacity (up to HAEDC = 94 mmol e-/mol C, HAEAC = 42 mmol e-/mol C). Since HA is widely available, inexpensive and environmentally friendly, the electrochemistry of HA has been explored to apply in many fields, such as environmental remediation, detection sensor and energy storage. Whereas, these prospective applications of HA and their electrochemical principles were lack of a comprehensive summary. In this review, the electrochemical properties and the prospective electrochemical applications of HA were summarized. Simultaneously, the existing problems like shortages of traditional electrochemical characterization of HA, and future research directions about HA electrochemistry were prospected. This review provides a deeper understanding of HA electrochemistry, and also inspires ideas for environmental remediation, detection sensor and energy storage by exploring the potential application values of HA.
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Affiliation(s)
- Caiqin Wang
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, Hangzhou 310014, China
| | - Tingfeng Cheng
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Daoyong Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, Hangzhou 310014, China
| | - Xiangliang Pan
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, Hangzhou 310014, China.
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Abstract
A comparison of the kinetics of the sorption of copper(II) on to peat from aqueous solution at various initial copper(II) concentrations and peat doses was made. The Elovich model and the pseudo-second order model both provided a high degree of correlation with the experimental data for most of the sorption process. There was a small discrepancy at the initial stages of sorption which suggested that film diffusion or wetting of the peat may be involved in the early part of the sorption process. Models evaluated included the fractional power equation, the Elovich equation, the pseudo-first order equation and the pseudo-second order equation. The kinetics of sorption were followed based on the sorption capacity of copper(II) on peat at various time intervals. Results show that chemical sorption processes may be rate-limiting in the sorption of copper(II) on to peat during agitated batch contact time experiments. The rate constant, the equilibrium sorption capacity and the initial sorption rate were calculated. From these parameters, an empirical model for predicting the concentrations of metal ions sorbed was derived.
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Affiliation(s)
- Y.S. Ho
- Department of Chemical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SAR, China
| | - G. McKay
- Department of Chemical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SAR, China
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Bertoli AC, Garcia JS, Trevisan MG, Ramalho TC, Freitas MP. Interactions fulvate-metal (Zn²⁺, Cu²⁺ and Fe²⁺): theoretical investigation of thermodynamic, structural and spectroscopic properties. Biometals 2016; 29:275-85. [PMID: 26857737 DOI: 10.1007/s10534-016-9914-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 02/03/2016] [Indexed: 11/26/2022]
Abstract
The use of theoretical calculation to determine structural properties of fulvate-metal complex (zinc, copper and iron) is here related. The species were proposed in the ratio 1:1 and 2:1 for which the molecular structure was obtained through the semi-empirical method PM6. The calculation of thermodynamic stability ([Formula: see text]) predicted that the iron complex were more exo-energetic. Metallic ions were coordinated to the phtalate groups of the model-structure of fulvic acid Suwannee River and the calculations of vibrational frequencies suggested that hydrogen bonds may help on the stability of the complex formation.
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Affiliation(s)
- Alexandre C Bertoli
- Instituto de Química, Universidade Federal de Alfenas, UNIFAL, Alfenas, MG, 37130-000, Brazil.
| | - Jerusa S Garcia
- Instituto de Química, Universidade Federal de Alfenas, UNIFAL, Alfenas, MG, 37130-000, Brazil
| | - Marcello G Trevisan
- Instituto de Química, Universidade Federal de Alfenas, UNIFAL, Alfenas, MG, 37130-000, Brazil
| | - Teodorico C Ramalho
- Departamento de Química, Universidade Federal de Lavras, Lavras, MG, 37200-000, Brazil
| | - Matheus P Freitas
- Departamento de Química, Universidade Federal de Lavras, Lavras, MG, 37200-000, Brazil
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Yuan S, Peng D, Hu X, Gong J. Bifunctional sensor of pentachlorophenol and copper ions based on nanostructured hybrid films of humic acid and exfoliated layered double hydroxide via a facile layer-by-layer assembly. Anal Chim Acta 2013; 785:34-42. [DOI: 10.1016/j.aca.2013.04.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 04/22/2013] [Accepted: 04/24/2013] [Indexed: 02/02/2023]
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References. Anal Chem 2012. [DOI: 10.1201/b11478-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Flores-Álvarez JM, González I, García-de la Rosa LA, Mancilla-Peña F, Reyes-Gómez J. Carbon paste electrodes modified with biosolids, soils and biocomposites utilized to study the interaction between organic matter and copper. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2011; 92:448-456. [PMID: 21044813 DOI: 10.1016/j.jenvman.2010.08.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 07/22/2010] [Accepted: 08/22/2010] [Indexed: 05/30/2023]
Abstract
Carbon paste electrodes (CPEs) modified with a biosolid, two types of soils with different amounts of organic matter (OM), and two biocomposites (soils mixed with a biosolid) were used to assess and compare the Cu(II) ion retention properties of the organic matter contained in the samples. The accumulation of Cu(II) on the surface of the modified carbon paste electrodes (MCPEs) was performed under open-circuit conditions. When comparing the response of the MCPEs while assessing parameters such as pH, preconcentration time, and adsorption/desorption capacity, it was found that the reaction mechanism of the two soils is different between the soils and dissimilar from the biosolid; while the biocomposites show reaction mechanisms that are intermediate between those of the soils and the biosolid. This was proven with the use of infrared spectroscopy, since the FTIR spectra show similarities between the two soils and significant differences between the soils and the biosolid.
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Affiliation(s)
- J M Flores-Álvarez
- Facultad de Ciencias Químicas, Universidad de Colima, Carr. Colima-Coquimatlán, km. 9, C. P. 28400, Coquimatlán, Colima, Mexico.
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Chauke V, Matemadombo F, Nyokong T. Remarkable sensitivity for detection of bisphenol A on a gold electrode modified with nickel tetraamino phthalocyanine containing Ni-O-Ni bridges. JOURNAL OF HAZARDOUS MATERIALS 2010; 178:180-186. [PMID: 20122800 DOI: 10.1016/j.jhazmat.2010.01.061] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Revised: 01/12/2010] [Accepted: 01/12/2010] [Indexed: 05/28/2023]
Abstract
This work reports the electrocatalysis of bisphenol A on Ni(II) tetraamino metallophthalocyanine (NiTAPc) polymer modified gold electrode containing Ni-O-Ni bridges (represented as Ni(OH)TAPc). The Ni(II)TAPc films were electro-transformed in 0.1 mol L(-1) NaOH aqueous solution to form 'O-Ni-O oxo bridges', forming poly-n-Ni(OH)TAPc (where n is the number of polymerising scans). poly-30-Ni(OH)TAPc, poly-50-Ni(OH)TAPc, poly-70-Ni(OH)TAPc and poly-90-Ni(OH)TAPc films were investigated. The polymeric films were characterised by electrochemical impedance spectroscopy and the charge transfer resistance (R(CT)) values increased with film thickness. The best catalytic activity for the detection of bisphenol A was on poly-70-Ni(OH)TAPc. Electrode resistance to passivation improved with polymer thickness. The electrocatalytic behaviour of bisphenol A was compared to that of p-nitrophenol in terms of electrode passivation and regeneration. The latter was found to passivate the electrode less than the former. The poly-70-Ni(OH)TAPc modified electrode could reliably detect bisphenol A in a concentration range of 7x10(-4) to 3x10(-2)mol L(-1) with a limit of detection of 3.68x10(-9)mol L(-1). The sensitivity was 3.26x10(-4)A mol(-1) L cm(-2).
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Affiliation(s)
- Vongani Chauke
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
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Biniak S, Pakuła M, Darlewski W, Świątkowski A, Kula P. Powdered activated carbon and carbon paste electrodes: comparison of electrochemical behaviour. J APPL ELECTROCHEM 2008. [DOI: 10.1007/s10800-008-9697-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Leite FL, Borato CE, da Silva WTL, Herrmann PSP, Oliveira ON, Mattoso LHC. Atomic force spectroscopy on poly(o-ethoxyaniline) nanostructured films: sensing nonspecific interactions. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2007; 13:304-12. [PMID: 17637080 DOI: 10.1017/s1431927607070262] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2006] [Accepted: 01/22/2007] [Indexed: 05/16/2023]
Abstract
Atomic force spectroscopy (AFS) was used to measure interaction forces between the tip and nanostructured layers of poly(o-ethoxyaniline) (POEA) in pure water and CuSO4 solutions. When the tip approach and retraction were carried out at low speeds, POEA chains could be physisorbed onto the Si3N4 tip via nonspecific interactions. We conjecture that while detaching, POEA chains were stretched and the estimated chain lengths were consistent with the expected values from the measured POEA molecular weight. The effects from POEA doping could be investigated directly by performing AFS measurements in a liquid cell, with the POEA film exposed to liquids of distinct pH values. For pH > or = 6.0, the force curves normally displayed an attractive region for POEA, but at lower pH values-where POEA is protonated-the repulsive double-layer forces dominated. Measurements in the liquid cell could be further exploited to investigate how the film morphology and the force curve are affected when impurities are deliberately introduced in the liquid. The shape of the force curves and the film morphology depended on the concentration of heavy metal in the liquid cell. AFS may therefore be used to study the interaction between film and analyte, with important implications for the understanding of mechanisms governing the sensing ability of taste sensors.
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Affiliation(s)
- F L Leite
- Embrapa Instrumentação Agropecuária, Rua XV de Novembro 1452, CP 741, 13560-970, São Carlos, SP, Brazil
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Airoldi FPS, Da Silva WTL, Crespilho FN, Rezende MOO. Evaluation of the electrochemical behavior of pentachlorophenol by cyclic voltammetry on carbon paste electrode modified by humic acids. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2007; 79:63-7. [PMID: 17290973 DOI: 10.2175/106143005x86646] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Humic substances, or natural recalcitrant organic matter, have an important role in the environment for their plant nutritional functions or for their capability to control the mobility of xenobiotic substances, such as pesticides. To verify the electrochemical behavior of pentachlorophenol (PCP), cyclic voltammetry was used because of its versatility. The following two different electrodes were used: carbon paste electrode (CPE) and carbon paste electrode chemically modified with humic acid (HACMCPE). The results demonstrated that PCP was better accumulated at the HACMCPE electrode, as a consequence of a larger current signal than at the CPE electrode. Cyclic voltammograms showed oxidation steps of PCP itself and probable production of quinonelike compounds.
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Affiliation(s)
- Flávia P S Airoldi
- Researcher, Chemistry Institute of São Carlos, University of São Paulo, São Carlos, SP, Brazil
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Silva LS, Oliveira TN, Ballin MA, Peixoto CRM. Ascorbic acid determination using a carbon paste electrode modified with iron(III) ions adsorbed on humic acid. ECLÉTICA QUÍMICA 2006. [DOI: 10.1590/s0100-46702006000400005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An amperometric sensor was constructed, by using humic acids to immobilize Fe3+ ions on a carbon paste electrode (CPE-HA-Fe), and used for ascorbic acid (H2A) determination. The cyclic voltammogram of the electrode showed electrochemical response due to the Fe3+/Fe2+ couple at E1/2=+0.78 V vs SCE, using 0.5 mol L-1 KCl and 0.2 mol L-1 acetate/0.020 mol L-1 phosphate buffer, at pH = 5.4, as supporting electrolyte. When H2A is added to the electrolyte solution it is observed an oxidation process. The oxidation current, obtained by chronoamperommetry at +0.87 V vs SCE, is proportional to the concentration, represented by the equation I(µA) = 7.6286 [H2A] (mmol L-1) + 1.9583, r = 0.9996, for concentrations between 0.0 and 1.4 mmol L-1. The electrode showed high stability and was used for H2A determination in a natural orange juice.
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Affiliation(s)
- L. S. Silva
- Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Brasil
| | - T. N. Oliveira
- Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Brasil
| | - M. A. Ballin
- Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Brasil
| | - C. R. M. Peixoto
- Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Brasil
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Santos FF, Martin-Neto L, Airoldi FPS, Rezende MOO. Photochemical behavior of parathion in the presence of humic acids from different origins. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2005; 40:721-30. [PMID: 16190016 DOI: 10.1080/03601230500189246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
This paper reports the effect of ultraviolet radiation on the degradation of pesticide ethyl parathion in the presence of humic acids. Ethyl parathion was completely degraded in 300 min using an artificial lamp of 7.41 x 10(-10) einstein/s. Humic acid from peat did not influence the photochemical rate (k = 8.92 x 10(-3) min). However, in the presence of aquatic humic acid, the photochemical rate was higher (11.5 x 10(-3) min). The analytical determinations show the presence of p-nitrophenol and aminophenol in the reaction medium during the photochemical experiments. The kinetic of degradation in all experiments obeyed a first-order reaction pattern.
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Affiliation(s)
- Francismário F Santos
- University of São Paulo, Institute of Chemistry of São Carlos, 13560-970 São Carlos SP, Brazil
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Moraes SLD, Landgraf MD, Rezende MOO. Caracterização de ácidos húmicos de diferentes origens por eletroforese capilar de zona. ECLÉTICA QUÍMICA 2004. [DOI: 10.1590/s0100-46702004000200007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
O objetivo deste trabalho foi caracterizar ácidos húmicos (HA) de diferentes origens por eletroforese capilar de zona (CZE) e avaliar a influência da concentração do tampão borato nesta caracterização. Os resultados mostraram que HA de diferentes origens podem ser rapidamente caracterizados por CZE. Por esta técnica, a caracterização de HA é devido a diferenças na razão carga/tamanho e das propriedades dos componentes individuais, conseqüência de suas diferentes origens.
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Thobie-Gautier C, da Silva WTL, Rezende MOO, El Murr N. Sensitive and reproducible quantification of Cu2+ by stripping with a carbon paste electrode modified with humic acid. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2003; 38:1811-1823. [PMID: 12940483 DOI: 10.1081/ese-120022880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The preparation of a humic acid modified carbon paste electrode (HA-MCPE) as well as the behavior of its surface as complexing agent toward Cu2+ cations are described. Electrochemical studies of the reduction of the complexed cations and of the anodic stripping oxidation of the resulting copper are outlined. The anodic stripping current was correlated to the Cu2+ concentrations. A well-defined method for the preparation of reproducible electrodes is described. The effects on the current response obtained by cyclic voltammetry of the humic acid ratio, the pH, the accumulation time, and the speed scan rate were studied. Calibration graphs were linear over the range 3 x 10(-8)-10(-5) mol L(-1) Cu2+ and the relative standard deviation (R.S.D.) was 1.2% (n=5) for [Cu2+] = 1.6 x 10(-5) mol L(-1). 5 min accumulation time for [Cu2+] > 10(-7) mol L(-1) and 10 min for [Cu2+] < 10(-7) mol L(-1) were sufficient to permit sensitive and reproducible measurements. The electrode was successfully used to measure Cu2+ in real samples and the results were compared to those obtained by the standard method with differential pulse anodic stripping voltammetry.
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Affiliation(s)
- Christine Thobie-Gautier
- Groupe Electrochimie-LAIEM-Faculté des Sciences et des Techniques, Université de Nantes, Nantes, France
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