Biodegradation of Congo Red Using Co-Culture Anode Inoculum in a Microbial Fuel Cell

Sharma, Kalpana; Pandit, Soumya; Thapa, Bhim Sen; Pant, Manu

doi:10.3390/catal12101219

Cited by 19 publications

(8 citation statements)

References 52 publications

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“…Degradation of Congo red dye: This study explores the complex field of photocatalysis, specifically examining the synthesized PEG-mediated Co 3 O 4 nanoparticles and their impressive capacity to enhance the breakdown of azo dye Congo red dye. The existence of two stable aromatic rings intricately connected by the chromophore [71] adds to the complexity of Congo red, resulting in a strong resistance to degradation [72]. In order to establish a baseline, we examined the photostability of Congo red dye in the absence of a photocatalyst under ultraviolet light (Fig.…”

Section: Photocatalytic Potential Of Co 3 O 4 Nanoparticlesmentioning

confidence: 99%

A Hybrid Synthesis Approach: Tailoring Photocatalytic Activity of Co3O4 Nanoparticles by PEG Functionalization

Kaur,

Kumar,

Kaur

et al. 2024

ajc

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This study presents a novel fusion of precipitation and hydrothermal methods for the synthesis of polyethylene glycol (PEG)-functionalized cobalt oxide (Co3O4) nanoparticles. The synthesized PEG/Co3O4 nanoparticles characterized using various techniques to elucidate their structure, composition, properties and application. The XRD analysis confirmed the formation of cubic phase of Co3O4 with a crystallite size of 2.04 nm. Two direct bandgap (Eg) transitions were observed at energy levels of 1.68 and 2.5 eV, exhibiting intensities that exceeded those reported in prior studies. The synthesized nanoparticles exhibited distinct structural features as revealed by FESEM and HRTEM investigations. Furthermore, the FTIR analysis provided evidence of interactions between PEG and Co3O4, suggesting successful functionalization. The high crystallinity of the PEG-mediated Co3O4 nanoparticles was further confirmed by the selected area electron diffraction (SAED) pattern. The XPS analysis revealed the presence of Co2+ and Co3+ ions, along with defect sites, confirming the successful synthesis of Co3O4 NPs with controlled oxidation states. These findings offer valuable insights into the chemical composition and electronic structure of the synthesized PEG-mediated Co3O4 nanoparticles. The photocatalytic activity of the PEG/Co3O4 nanoparticles was evaluated through the degradation of Congo red dye, a typical azo dye pollutant. The study revealed that PEG/Co3O4 (dose 200 mg L-1) acted as an efficient photocatalyst for Congo red degradation. These results suggest that PEG-mediated Co3O4 nanoparticles hold promising potential as efficient photocatalysts for the treatment of wastewater containing organic contaminants.

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Section: Photocatalytic Potential Of Co 3 O 4 Nanoparticlesmentioning

confidence: 99%

A Hybrid Synthesis Approach: Tailoring Photocatalytic Activity of Co3O4 Nanoparticles by PEG Functionalization

Kaur,

Kumar,

Kaur

et al. 2024

ajc

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“…Green synthesis of silver nanoparticle structure and dimension also plays a most important role in catalyzing various types of dyes and photocatalytic degradation [134] and in the wastewater treatment process [187]. Green synthesized and characterization of silver nanoparticles used to treat antibacterial, antifungal, antimycobacterial, and antimalarial activity against Pseudomonas aeruginosa, Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Salmonella typhi, Mycobacterium tuberculosis, and Plasmodium falciparum [189].…”

Section: Green Synthesis Of Silver (Ag) Nanoparticle and Its Applicat...mentioning

confidence: 99%

Applications of Green Synthesized Metal Nanoparticles — a Review

Vijayaram

Razafindralambo

Sun

et al. 2023

Biol Trace Elem Res

101

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Green nanotechnology is an emerging field of science that focuses on the production of nanoparticles by living cells through biological pathways. This topic plays an extremely imperative responsibility in various fields, including pharmaceuticals, nuclear energy, fuel and energy, electronics, and bioengineering. Biological processes by green synthesis tools are more suitable to develop nanoparticles ranging from 1 to 100 nm compared to other related methods, owing to their safety, ecofriendliness, non-toxicity, and cost-effectiveness. In particular, the metal nanoparticles are synthesized by top-down and bottom-up approaches through various techniques like physical, chemical, and biological methods. Their characterization is very vital and the confirmation of nanoparticle traits is done by various instrumentation analyses such as UV-Vis spectrophotometry (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), atomic force microscopy (AFM), annular dark-field imaging (HAADF), and intracranial pressure (ICP). In this review, we provide especially information on green synthesized metal nanoparticles, which are helpful to improve biomedical and environmental applications. In particular, the methods and conditions of plant-based synthesis, characterization techniques, and applications of green silver, gold, iron, selenium, and copper nanoparticles are overviewed.

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“…This antagonistic behavior in mixed culture can be tackled by selecting different organisms with different substrate requirements. This method of co-culturing has resulted in excellent outcomes in the degradation of waste materials and drug delivery [105].…”

Section: Microbial Cooperation and Competitionmentioning

confidence: 99%

Recent advances in biological approaches towards anode biofilm engineering for improvement of extracellular electron transfer in microbial fuel cells

Naaz¹,

Kumar²,

Vempaty³

et al. 2023

Environmental Engineering Research

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Over the last two decades, scientific communities have been more interested in turning organic waste materials into bioenergy. Microbial fuel cells (MFC) can degrade organic wastewater and produce electrical power. Many constraints have limited the development of MFC. Among them, the anode biofilm development is one of the significant constraints that need to be improved. This review delineates the role of various biological components in the development of electroactive biofilm. The current article focuses on the numerous electron exchange methods for microbiome-induced electron transfer activity, the different proteins, and secretory chemicals involved in electron transfer. This study also focuses on several proteomics and genomics methodologies that have been adopted and developed to improve the extra electron transfer mechanism in electroactive bacteria. Recent advances and publications on synthetic biology and genetic engineering in investigating the direct and indirect electron transport phenomena have also been highlighted. This review helps the reader to understand the recent development in the genetic manipulations of the biofilm, electrode material modifications, EET mechanisms, and operational strategies for improving anode performance. This review also discusses the challenges in present technology and the future direction for improving biofilm production at the anode.

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Biodegradation of Congo Red Using Co-Culture Anode Inoculum in a Microbial Fuel Cell

Cited by 19 publications

References 52 publications

A Hybrid Synthesis Approach: Tailoring Photocatalytic Activity of Co3O4 Nanoparticles by PEG Functionalization

A Hybrid Synthesis Approach: Tailoring Photocatalytic Activity of Co3O4 Nanoparticles by PEG Functionalization

Applications of Green Synthesized Metal Nanoparticles — a Review

Recent advances in biological approaches towards anode biofilm engineering for improvement of extracellular electron transfer in microbial fuel cells

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