Enhanced surface Fenton degradation of BPA in soil with a high pH

Yu, Qianqian; Feng, Ling; Chai, Xin‐Sheng; Qiu, Xinhong; Ou-Yang, H. Daniel; Deng, Guanyu

doi:10.1016/j.chemosphere.2018.12.141

Cited by 32 publications

(7 citation statements)

References 37 publications

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“…At the low pH value, the BPA removal rate decreases. In contrast, an increased BPA degradation efficiency was observed at high pH (Yu et al 2019). Therefore, an example of soils distinguished by a high content of bisphenols is peat soils, which are characterized by low pH value and the litter from peatland vegetation (Wiedermann et al 2017).…”

Section: Soil Enzymesmentioning

confidence: 99%

Role of Chlorella sp. and rhamnolipid 90 in maintaining homeostasis in soil contaminated with bisphenol A

2020

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Purpose The knowledge about the impact of BPA on soil health does not correspond to the great interest in its analogues. Therefore, a study was conducted to determine the potentially negative impact of BPA on the biochemical properties of soil. The study also evaluated the effectiveness of two biostimulants in eliminating potential homeostasis disorders caused by BPA. Materials and methods A pot experiment was conducted under supervised conditions. BPA at five contamination levels was added to the soil of the granulometric composition of sandy loam at 0, 0.1, 2, 40 and 800 mg BPA kg −1 of a dry matter (DM) of soil. The biochemical activity of the soil was interpreted through the activity of dehydrogenases (Deh), urease (Ure), catalase (Cat), acid phosphatase (Pac), alkaline phosphatase (Pal), arylsulphatase (Aryl) and β-glucosidase (Glu) whose activity was determined on days 5, 15 and 45 of the study. The biostimulative potential of Chlorella sp. and rhamnolipid 90 (which eliminates the undesirable effects of BPA on the parameters) was expressed with IF B-the factor of the impact of increasing of bisphenol (BP) soil contamination levels. The response of spring barley to increasing BPA pressure was analysed with the plant resistance index (RS). The study was made more comprehensive by determination of the macronutrient content in the plants. Results and discussion The sensitivity of individual enzymes to increasing bisphenol pressure on the 45th day of the experiment can be arranged in the following sequence: Deh > Ure > Glu > Pac > Cat > Aryl > Pal. Biostimulation of soil with Chlorella sp. gave better results than with rhamnolipid 90. A compilation of BPA 800 mg BPA kg −1 DM of soil and Chlorella sp. brought about an increase in the activity of Glu on the 45th day of the experiment and Pac, Pal and Aryl on the 5th day. Only at this contamination level did BPA stimulate the crop growth in all the parallel plots except in those biostimulated by Chlorella sp. Only algae significantly reduced the negative BPA impact on the N, Ca and K content in spring barley. Conclusions The experiment emphasised the significant inhibitory impact of BPA on the biochemical activity of soil which, in consequence, upset the microbial balance of soil processes. Chlorella sp. played a more important role in maintaining the soil homeostasis than rhamnolipid 90, which did not correspond to its negative impact on the yield of spring barley.

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Section: Soil Enzymesmentioning

confidence: 99%

Role of Chlorella sp. and rhamnolipid 90 in maintaining homeostasis in soil contaminated with bisphenol A

2020

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“…Under acidic condition, the intermediates mainly existed in the form of H 2 O 2 , and the formation of two hydrogen bonds between H 2 O 2 and the catalyst surface was more conducive to the formation of • OH. However, the intermediate products mainly existed in the form of HO 2 – under alkaline conditions, and it was easier to generate HO 2 • , and HO 2 • could react quickly with H 2 O 2 to generate • OH . Meanwhile, the activity of • OH was usually low at a high pH, so that the phenol degradation rate was basically consistent at the pH of 7–11.…”

Section: Results and Discussionmentioning

confidence: 99%

“…• could react quickly with H 2 O 2 to generate • OH. 50 Meanwhile, the activity of • OH was usually low at a high pH, so that the phenol degradation rate was basically consistent at the pH of 7−11. The use of traditional electro-Fenton reaction catalysts with metal ions as catalytic active centers had the risk of metal leaching at a higher pH, thus inducing the degradation of catalyst performance.…”

Section: Mechanism Of Phenol Degradationmentioning

confidence: 99%

Boron Bifunctional Catalysts for Rapid Degradation of Persistent Organic Pollutants in a Metal-Free Electro-Fenton Process: O₂ and H₂O₂ Activation Process

Chen,

Wang,

Sun

et al. 2023

Environ. Sci. Technol.

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Metals usually served as the active sites of the heterogeneous bifunctional electro-Fenton reaction, which faced the challenge of poor stability under acidic or even neutral conditions. Exploring a metal-free heterogeneous bifunctional electro-Fenton catalyst can effectively solve the above problems. In this work, a stable metal-free heterogeneous bifunctional boron-modified porous carbon catalyst (BTA-1000) was synthesized. For the BTA-1000 catalyst, the yield of H 2 O 2 (294 mg/L) significantly increased. The degradation rate of phenol by BTA-1000 (0.242 min −1 ) increased by an order of magnitude, compared with the porous carbon catalyst (0.0105 min −1 ). The BTA catalyst could rapidly degrade industrial dye wastewater, and its specific energy consumption was 5.52 kW h kg −1 COD −1 , lower than that in previous reports (6.38−7.4 kW h kg −1 COD −1 ). DFT and XPS revealed that C�O and −BC 2 O groups jointly promoted the generation of H 2 O 2 , and the −BCO 2 group played dominant roles in the generation of • OH because the oxygen atom near the electron-giving groups (−BCO 2 group) facilitated the formation of hydrogen bond and H 2 O 2 adsorption. This work gained deep insights into the reaction mechanism of the boron-modified porous carbon catalyst, which helped to guide the development of metal-free heterogeneous bifunctional electro-Fenton catalysts.

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“…Considerable work on the degradation of BPA has been performed using various methods such as thermal degradation [3], electrocatalytic oxidation [4,5], enhanced TiO 2 photocatalytic degradation [6], O 3 /UV methods [7,8], photo-Fenton process [1,9], Fenton in soil at high pH [10], biological methods [11,12] and so on. Advanced Oxidation Process (AOPs) are effective and promising methods to eliminate persistent organics pollutants (POPs) in contrast to biological treatment methods because biodegradation may be adversely affected by the toxicity of BPA [13,14].…”

Section: Introductionmentioning

confidence: 99%

Advance Oxidation Process (AOP) of Bisphenol A Using a Novel Surface-Functionalised Polyacrylonitrile (PAN) Fibre Catalyst

Wang

Farías

Tiwary

et al. 2022

Water

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Bisphenol A (BPA) is a well-known endocrine disruptor in the environment which is not readily oxidised during wastewater treatment at Municipal Authorities. The aim of this work is to evaluate the environmental value of the wastewater treatment of a novel heterogeneous oxidation catalyst by means of the degradation of BPA, avoiding sewage sludge and its post-treatments. A surface-functionalised polyacrylonitrile (PAN) mesh has been produced by reaction of the cyano group of PAN with hydrazine and hydroxylamine salts. This surface-functionalised PAN is then exposed to iron (III) salt solution to promote the ligation of Fe(III) to the functional groups to form the active catalytic site. The experiments were set up in two different batch reactors at laboratory scale at different temperatures and initial pH. The degradation of BPA was detected by measuring the absorbance of BPA in Reverse Phase High Performance Liquid Chromatography at 280 nm. A total elimination of 75 ppm of BPA in less than 30 min was achieved under 300 ppm H2O2, 0.5 g PAN catalyst, initial pH 3 and 60 °C. Almost no adsorption of BPA on the catalyst was detected and there was no significant difference in activity of the catalyst after use for two cycles.

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Enhanced surface Fenton degradation of BPA in soil with a high pH

Cited by 32 publications

References 37 publications

Role of Chlorella sp. and rhamnolipid 90 in maintaining homeostasis in soil contaminated with bisphenol A

Role of Chlorella sp. and rhamnolipid 90 in maintaining homeostasis in soil contaminated with bisphenol A

Boron Bifunctional Catalysts for Rapid Degradation of Persistent Organic Pollutants in a Metal-Free Electro-Fenton Process: O₂ and H₂O₂ Activation Process

Advance Oxidation Process (AOP) of Bisphenol A Using a Novel Surface-Functionalised Polyacrylonitrile (PAN) Fibre Catalyst

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Enhanced surface Fenton degradation of BPA in soil with a high pH

Cited by 32 publications

References 37 publications

Role of Chlorella sp. and rhamnolipid 90 in maintaining homeostasis in soil contaminated with bisphenol A

Role of Chlorella sp. and rhamnolipid 90 in maintaining homeostasis in soil contaminated with bisphenol A

Boron Bifunctional Catalysts for Rapid Degradation of Persistent Organic Pollutants in a Metal-Free Electro-Fenton Process: O2 and H2O2 Activation Process

Advance Oxidation Process (AOP) of Bisphenol A Using a Novel Surface-Functionalised Polyacrylonitrile (PAN) Fibre Catalyst

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Product

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Boron Bifunctional Catalysts for Rapid Degradation of Persistent Organic Pollutants in a Metal-Free Electro-Fenton Process: O₂ and H₂O₂ Activation Process