Isomers of Poly Aminophenol: Chemical Synthesis, Characterization, and Its Corrosion Protection Aspect on Mild Steel in 1 M HCl

Thenmozhi, G.; Arockiasamy, P.; Santhi, R.

doi:10.1155/2014/961617

Cited by 34 publications

(20 citation statements)

References 43 publications

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“…4-Aminophenol (4-AP) has been reported as a major product of 4-NP transformation in anaerobic environments (Gurevich et al, 1993) and polymerization of 4-AP is also known to occur (Thenmozhi et al, 2011(Thenmozhi et al, , 2014. We therefore hypothesized that the 4-NP loss was due to its reduction to 4-AP and/or its direct or indirect polymerization.…”

Section: Chemical Polymerization Of 4-aminophenolmentioning

confidence: 97%

“…The diversity of compounds present in the synthetic sewage which is a complex medium (peptone, meat extract and urea) and the abundance of sulfate (26.3 ± 0.7 mg/L in the initial medium) could also favor this reaction. Furthermore, it has been shown that 4-AP can polymerize in presence of oxidizing agents such as hydrogen peroxide or ammonium persulfate (APS) (Duan et al, 2014;Thenmozhi et al, 2014). Thenmozhi et al (2014) observed the chemical synthesis of 4-AP in acidic conditions and Duan et al (2014) used horseradish peroxidase to catalyze 4-AP polymerization at pH 7 in the presence of hydrogen peroxide.…”

Section: Biodegradation Of 4-npmentioning

confidence: 99%

“…Furthermore, it has been shown that 4-AP can polymerize in presence of oxidizing agents such as hydrogen peroxide or ammonium persulfate (APS) (Duan et al, 2014;Thenmozhi et al, 2014). Thenmozhi et al (2014) observed the chemical synthesis of 4-AP in acidic conditions and Duan et al (2014) used horseradish peroxidase to catalyze 4-AP polymerization at pH 7 in the presence of hydrogen peroxide. In our study, the brown precipitate was observed only several minutes after sampling and in aerobic conditions and the oxygen could be the oxidative agent necessary to the reaction.…”

Section: Biodegradation Of 4-npmentioning

confidence: 99%

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Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

Godain

Spurr

Boghani

et al. 2020

Front. Environ. Sci.

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The upstream protection of the biomass present in biological treatment processes is a vital challenge as the consequences of failure could include exposure of water users to hazardous chemicals in addition to loss of treatment performance. Online detection of toxic compounds in wastewater could enable processes to be monitored in real-time and promote pro-active responses to pollution incidents. Recently, Microbial Fuel Cells (MFCs) which generate electricity from organic matter oxidation have shown potential as sensors for online detection of toxicity. In this study, the detection of a model toxicant (4-nitrophenol) was investigated using a multi-stage MFC-based toxicity sensor. MFCs were operated with synthetic wastewater to maintain realistic conditions while enabling organic carbon levels to be controlled. A positive correlation was observed between the 4-NP concentrations and the current drop area showing that the response was proportional to the toxicity level. In addition, the sensor anodic biofilm exhibited resilience to acute toxic events with recovery of 75% of the initial current following a toxic event comprising 500 mg/L 4-NP after 4 h. However, repetitive toxicity events could lead to the selection of resistant bacteria able to degrade the toxic compounds. In this study, a maximal 4-NP degradation rate of 36 mg/h was observed. This limitation could be overcome by re-calibration after a determined number of toxic events. An additional feature of the multi-stage configuration of the sensor is that a drop in output caused by the presence of a toxic compound could be distinguished from a drop in output caused by a decrease in BOD. The microbial community on the sensor anode was characterized by 16S rRNA gene sequencing and shown to comprise an anaerobic community of fermentative bacteria capable of producing volatile fatty acids and hydrogen that were consumed by electrogenic Geobacter spp (2.76 to 21.39% of the anode community) that generated the electrical signal in the sensor. The multi-stage MFC biosensor could provide an early warning system capable of alerting process operators to the presence and level of toxicity in influent wastewater.

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Section: Chemical Polymerization Of 4-aminophenolmentioning

confidence: 97%

Section: Biodegradation Of 4-npmentioning

confidence: 99%

Section: Biodegradation Of 4-npmentioning

confidence: 99%

See 1 more Smart Citation

Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

Godain

Spurr

Boghani

et al. 2020

Front. Environ. Sci.

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“…The product was then dried at 80 C for 12 h, and used for further process. 37 2.4.3. Synthesis of the poly aniline-poly para-aminophenol copolymer (PpAP-PANI).…”

Section: Conductive Polymer (Cp) Synthesismentioning

confidence: 99%

“…The product was dried at 80 C in vacuum oven, and stored for further process. 36,37 2.4.4. Synthesis of poly-pyrrole (pPy).…”

Section: Conductive Polymer (Cp) Synthesismentioning

confidence: 99%

An effective utilization of MXene and its effect on electromagnetic interference shielding: flexible, free-standing and thermally conductive composite from MXene–PAT–poly(p-aminophenol)–polyaniline co-polymer

et al. 2020

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Design and fabrication of electrochemical sensor based on molecularly imprinted polymer loaded onto silver nanoparticles for the detection of 17‐β‐estradiol

Regasa

Nyokong

2022

J of Molecular Recognition

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In this research report, we prepared an electrochemical sensor based on the molecularly imprinted poly(p‐aminophenol) supported by silver nanoparticles capped with 2‐mercaptobenzoxazole for the selective and sensitive detection of endocrine disrupting 17‐β‐estradiol (E2). The electropolymerization of the functional monomer prepared the proposed molecularly imprinted polymer (MIP) composite‐based sensor in the presence of E2 as a template. The recognition materials were characterized using Fourier transform infrared, cyclic voltammetry (CV), square wave voltammetry (SWV), scanning electron microscopy, energy‐dispersive X‐ray spectroscopy and X‐ray powder diffraction techniques. The electrochemical measurements were performed by employing both CV and SWV methods. We did the optimization of critical parameters affecting the sensor performances through the experimental design and verification. The developed sensor showed a linear range from 10 pM to 100 nM with the calculated quantification and detection limits of 1.86 and 6.19 pM, respectively. The incorporation of AgNP with high electrical conductivity into the MIP matrix enhanced the sensor's performance. Furthermore, the sensor was applied to determine E2 in real water samples without any sample preconcentration steps to achieve the percent recovery of 91.87% to 98.36% and acceptable reusability and storage stability performances.

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Isomers of Poly Aminophenol: Chemical Synthesis, Characterization, and Its Corrosion Protection Aspect on Mild Steel in 1 M HCl

Cited by 34 publications

References 43 publications

Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

Detection of 4-Nitrophenol, a Model Toxic Compound, Using Multi-Stage Microbial Fuel Cells

An effective utilization of MXene and its effect on electromagnetic interference shielding: flexible, free-standing and thermally conductive composite from MXene–PAT–poly(p-aminophenol)–polyaniline co-polymer

Design and fabrication of electrochemical sensor based on molecularly imprinted polymer loaded onto silver nanoparticles for the detection of 17‐β‐estradiol

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