Rapid determination of hydrogen peroxide in the wood pulp bleaching streams by a dual-wavelength spectroscopic method

Chai, X.-S.; Hou, Qingxi; Luo, Qian; Zhu, Junyong

doi:10.1016/j.aca.2003.11.036

Cited by 133 publications

(58 citation statements)

References 2 publications

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“…Thus, it is critical to develop a novel method for the accurate and quick detection of H 2 O 2 . During the past few decades, many techniques have been established to detect H 2 O 2 , such as fluorimetry [8], titrimetry [9], chemiluminescence [10], spectrophotometry [11], chromatography [12], colorimetry [13], electron spin resonance spectroscopy [14], electrochemical methods [15,16], and so on. Among these techniques, electrochemical methods have attracted wide attention for real-time detection of H 2 O 2 because of their high sensitivity, fast response and low cost.…”

Section: Introductionmentioning

confidence: 99%

Flexible Hydrogen Peroxide Sensors Based on Platinum Modified Free-Standing Reduced Graphene Oxide Paper

Song

Wei

et al. 2018

Applied Sciences

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Abstract:In this article, we report a facile method to fabricate free-standing reduced graphene oxide paper (rGOP) by vacuum filtration. Pt nanoparticles were electrodeposited on reduced graphene oxide paper to construct a sensitive and flexible hydrogen peroxide (H 2 O 2 ) sensor. The properties of Pt/rGOP were characterized by scanning electron microscopy, energy dispersive X-ray, X-ray photoelectron spectroscopy and Raman spectroscopy. The electrochemical characterizations of the resulting sensor were carried out by cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. The Pt/rGOP hybrid electrode had an excellent electrochemical property, with superb electrocatalytic activity, a large electrochemical active surface area, flexibility and high stability. The linear ranges of the as-prepared sensor for H 2 O 2 detection were divided into two linear sections: 0.2 µmol/L to 2.0 mmol/L and 2.0 to 8.5 mmol/L, with a detection limit of 100 nmol/L (S/N = 3) and a response time of less than 5 s. The proposed sensor has great potential to become a reliable and flexible tool in biosensor and point-of-care medical devices.

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Section: Introductionmentioning

confidence: 99%

Flexible Hydrogen Peroxide Sensors Based on Platinum Modified Free-Standing Reduced Graphene Oxide Paper

Song

Wei

et al. 2018

Applied Sciences

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“…A solution of 2.4 mmol L -1 (NH 4 ) 6 Mo 7 O 24 .4H 2 O in 0.5 mol L -1 H 2 SO 4 was added to the samples, resulting in a yellow color. 31 The absorbance was determined at 350 nm. Calibration plots based on Beer-Lambert's law were established relating absorbance to concentration.…”

Section: Mgde Behaviormentioning

confidence: 99%

Effects of the modification of gas diffusion electrodes by organic redox catalysts for hydrogen peroxide electrosynthesis

Forti

Venâncio

Lanza

et al. 2008

J. Braz. Chem. Soc.

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Este trabalho apresenta um estudo comparativo da eficiência eletroquímica na eletrogeração de peróxido de hidrogênio in situ usando eletrodos da difusão gasosa modificados com os catalisadores orgânicos redox: 2-etilantraquinona, 2-terc-butilantraquinona e azobenzeno em meio de 0,1 mol L -1 H 2 SO 4 + 0,1 mol L -1 K 2 SO 4 , pH = 1. A produção de peróxido de hidrogênio está diretamente relacionada ao potencial aplicado e a concentração dos catalisadores adicionados. A modificação dos eletrodos resultou em um aumento significativo no rendimento de H 2 O 2 (30%) alcançando 850 mg L -1 e o sobrepotencial da reação de redução do oxigênio foi deslocado para valores menos negativos (400 mV vs Ag/AgCl para os eletrodos modificados com quinonas e 300 mV vs. Ag/AgCl para os eletrodos modificados com azobenzeno) comparado ao eletrodo de difusão gasosa não modificado, reduzindo o consumo de energia de 596,5 para 232,4 kWh kg -1. Os resultados indicaram que o melhor eletrodo para a eletrogeração do H 2 O 2 é o eletrodo de difusão gasosa modificado com 10% de 2-etilantraquinona, o qual apresentou a melhor relação custo/benefício. This paper reports a comparative study of the electrochemical performance of in situ hydrogen peroxide electrogeneration on gas diffusion electrodes modified by organic redox catalysts 2-ethylanthraquinone, 2-terc-butylanthraquinone and azobenzene in medium of 0.1 mol L -1 H 2 SO 4 plus 0.1 mol L -1 K 2 SO 4 , pH = 1. Hydrogen peroxide generation proved strongly dependent on the applied potential and on the concentration of added catalysts. Electrode modifications led to a significant increase in H 2 O 2 yield (30%) reaching 850 mg L -1 , and the overpotential for oxygen reduction shifted to less negative values (400 mV vs Ag/AgCl for electrodes modified by quinones and 300 mV vs Ag/AgCl for electrodes modified by azobenzene) compared to noncatalyzed gas diffusion electrodes, resulting in reduced energy consumption of 596.5 to 232.4 kWh kg -1 . The results indicated that the best electrode for H 2 O 2 electrogeneration is the gas diffusion electrode modified with 10% of 2-ethylanthraquinone, offering the best cost to benefit ratio.

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“…An important parameter in peroxide bleaching of pulp is the amount of residual peroxide in the spent bleaching effluent. Very low peroxide residues in the bleaching effluent can result in pulp brightness reversion, and excessive residual peroxide increases the chemical costs of the bleaching (Chai et al 2004). Hence, a simple, rapid, and accurate analytical method for measuring hydrogen peroxide residues in bleaching effluent is needed.…”

Section: Introductionmentioning

confidence: 99%

“…A number of analytical methods have been reported for the quantification of hydrogen peroxide concentrations, such as by titration (Kieber and Helz 1986;Klassen et al 1994;Reichert et al 1939;Schumb et al 1955), spectrophotometric analysis (Chai et al 2004;Sellers 1980;Sunil and Narayana, 2008;Zhang et al 2013), chemiluminescent analysis (Hu et al 2007;Lu et al 2009), fluorometric analysis (Hwang and Dasgupta 1986;Luo et al 2009), and electrochemical analysis (Frew et al 1986;Sato et al 2008). Most of the widely used analytical methods are titration-based, and these are very popular, especially in the pulp and paper industry; however, titrimetric methods are prone to interference by extraneous substances and can result in significant experimental error.…”

Section: Introductionmentioning

confidence: 99%

Headspace Gas Chromatographic Method for the Determination of Hydrogen Peroxide Residues in Bleaching Effluent

Liu¹,

Zhang²,

Zhan³

2014

BioResources

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A simple, rapid, accurate, and practical headspace gas chromatographic method is proposed for the determination of hydrogen peroxide residues in bleaching effluent. This method is based on the reaction of hydrogen peroxide with ceric sulfate, under acidic conditions, where hydrogen peroxide is converted to oxygen, which is then measured using headspace gas chromatography (HS-GC) coupled with a thermal conductivity detector (TCD). The results show that a complete conversion of hydrogen peroxide to oxygen can be achieved within 3 min at a temperature of 70 °C and a H2SO4 concentration of 0.2 M. Under optimized conditions, the method has an excellent measurement precision (relative standard deviation = 0.78%) and good recovery (100.2 ± 2.6%). Meanwhile, the present method does not require the use of organic reagents.

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Rapid determination of hydrogen peroxide in the wood pulp bleaching streams by a dual-wavelength spectroscopic method

Cited by 133 publications

References 2 publications

Flexible Hydrogen Peroxide Sensors Based on Platinum Modified Free-Standing Reduced Graphene Oxide Paper

Flexible Hydrogen Peroxide Sensors Based on Platinum Modified Free-Standing Reduced Graphene Oxide Paper

Effects of the modification of gas diffusion electrodes by organic redox catalysts for hydrogen peroxide electrosynthesis

Headspace Gas Chromatographic Method for the Determination of Hydrogen Peroxide Residues in Bleaching Effluent

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