Flower-like structures of carbonaceous nanomaterials obtained from biomass for the treatment of copper ion-containing water and their re-use in organic transformations

Arunachellan, Iviwe; Sypu, Venkata Satyanarayana; Kera, Nazia H.; Pillay, Kriveshini; Maity, Arjun

doi:10.1016/j.jece.2021.105242

Cited by 15 publications

(6 citation statements)

References 46 publications

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“…This is corroborated by absence of catalytic degradation during the thermal degradation analysis. The adsorption kinetics were studied in detail in the preceding study [ 24 ]. Briefly, the adsorption of copper onto TFSA followed a pseudo-first-order model, thus copper was adsorbed homogeneously on the TFSA surface.…”

Section: Resultsmentioning

confidence: 99%

“…5 g of washed Platamus occidentalis tree fibers was carbonized by adding 98% H 2 SO 4 (1:1) to the fibers and placed in the vacuum oven at 100 °C for 24 h. After carbonization, the material was dispersed washed with deionized water, under constant shaking, for 2 h to remove unreacted acid, then filtered through under suction. The carbonized material was soaked in 1% w/v NaHCO 3 solution to ensure the complete removal of unreacted acid [ 24 ]. The copper-loaded TFSA (Cu@TFSA) was prepared via batch adsorption.…”

Section: Methodsmentioning

confidence: 99%

“…This study reports on the re-use of a spent activated carbon adsorbent that was used for the removal of copper from aqueous media [ 24 ]. Also, the method of synthesis of the adsorbent further eliminates the need for additional chemical or heat treatment for the formation of copper nanoparticles on the surface of the activated carbon.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Copper-Decorated Activated Carbon Derived from Platamus occidentalis Tree Fiber for Antimicrobial Applications

et al. 2022

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This study focuses on a greener approach to synthesizing activated carbon by carbonizing Platamus occidentalis tree fibers (TFSA) with 98% H2SO4 at 100 °C. The resulted TFSA was employed as an effective adsorbent for copper ions in aqueous media, yielding copper decorated TFSA (Cu@TFSA). The successful adsorption of copper onto the TFSA was proven through extensive characterization techniques. Herein, the TEM and XPS showed that copper nanoparticles were formed in situ on the TFSA surface, without the use of additional reducing and stabilizing agents nor thermal treatment. The surface areas of TFSA and Cu@TFSA were 0.0150 m2/g and 0.3109 m2/g, respectively. Applying the Cu@TFSA as an antimicrobial agent against Escherica coli ( E. coli) and Salmonella resulted in the potential mitigation of complex secondary pollutants from water and wastewater. The Cu@TFSA exhibited outstanding antimicrobial activity against E. coli and Salmonella in both synthetic and raw water samples. This demonstrated a complete growth inhibition observed within 120 min of exposure. The bacteria inactivation took place through the destruction of the bacteria cell wall and was confirmed by the AFM analysis technique. The prospect of commercially Cu@TFSA has the potential to be used in the water and wastewater treatment sector as antimicrobial agents.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Preparation of Copper-Decorated Activated Carbon Derived from Platamus occidentalis Tree Fiber for Antimicrobial Applications

et al. 2022

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“…These particles show properties that are generally considered different and superior to other commercial materials. The reasons known today for the attractiveness of the frequently mentioned nanoparticle properties are; Quantum size effects stand out as the size dependence of the electronic structure, unique characters of surface atoms and high surface/volume ratio [9].…”

Section: Nanomaterialsmentioning

confidence: 99%

“…Nanoparticle synthesis has paved the way for the preparation of many technological and pharmacological products such as high-activity catalysts, special technological materials for optical applications, superconductors, anti-wear additives, surfactants, drug carriers and special diagnostic tools, due to the extraordinary properties these structures exhibit. In addition, the control of materials at the nanoscale level allows the realization of miniaturized devices with specific functions such as nanocarriers, sensors, nanomachines and high density data storage cells [8][9][10]. The indispensable first step for new developments in nanotechnology, which includes the design, manufacture and functional use of nanostructured materials and devices, is the production of nanoparticles.…”

Section: Nanomaterialsmentioning

confidence: 99%

Biomass Based Materials in Electrochemical Supercapacitor Applications

Aslan¹,

Altuntaş²

2022

Supercapacitors for the Next Generation

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Biomass is the general term for organic substances derived from living organisms (plants and animals). Since, biomass is a renewable, sustainable, innovative, low cost and carbon-neutral energy source, the applications of nano-micro particles produced from biomass in electrochemical applications have emerged. A large number of carbon-based materials, such as featured activated carbon, carbon nanotube, C-dots, biochar, hybrid carbon-metal/metal oxide … etc. can be produced from divergent types of biomass. With the growing energy need in the world, supercapacitors have also developed considerably besides the energy generation and storage methods. The supercapacitor is an energy storage system that can work reversibly to provide high energy in a short time. In these systems, electrode structure and surface properties are crucial for energy capacity enhancement. In this sense, electrode modifications with the above-mentioned biomass-based nano-micro structures are widely used in supercapacitor applications.

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Citrus fruit residues as alternative precursors to developing H2O and CO2 activated carbons and its application for Cu(II) adsorption

Silva

Schnorr

Lütke

et al. 2023

Environ Sci Pollut Res

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Due to its toxicity, the presence of Cu(II) ions released in aquatic environments presents a serious threat to the environment and human health. In search of sustainable and low-cost alternatives, there are citrus fruit residues, which are generated in large quantities by the juice industries and can be used to produce activated carbons. Therefore, the physical route was investigated for producing activated carbons to reuse citrus wastes. In this work, eight activated carbons were developed, varying the precursor (orange peel-OP, mandarine peel-MP, rangpur lime peel-RLP, and sweet lime peel-SLP) and the activating agent (CO2 and H2O) to remove Cu(II) ions of the aqueous medium. Results revealed promising activated carbons with a micro-mesoporous structure, a specific surface area of around 400 m 2 g -1 , and a pore volume of around 0.25 cm 3 g -1 . In addition, Cu (II) adsorption was favored at pH 5.5. The kinetic study showed that the equilibrium was reached within 60 min removing about 80% of Cu(II) ions. The Sips model was the most suitable for the equilibrium data, providing maximum adsorption capacities (qmS) values of 69.69, 70.27, 88.04, 67.83 mg g -1 for activated carbons (AC-CO2) from OP, MP, RLP, and SLP, respectively. The thermodynamic behavior showed that the adsorption process of Cu(II) ions was spontaneous, favorable, and endothermic. It was suggested that the mechanism was controlled by surface complexation and Cu 2+ -π interaction. Desorption was possible with an HCl solution (0.5 mol L -1 ). From the results obtained in this work, it is possible to infer that citrus residues could be successfully converted into efficient adsorbents to remove Cu(II) ions from aqueous solutions.

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Flower-like structures of carbonaceous nanomaterials obtained from biomass for the treatment of copper ion-containing water and their re-use in organic transformations

Cited by 15 publications

References 46 publications

Preparation of Copper-Decorated Activated Carbon Derived from Platamus occidentalis Tree Fiber for Antimicrobial Applications

Preparation of Copper-Decorated Activated Carbon Derived from Platamus occidentalis Tree Fiber for Antimicrobial Applications

Biomass Based Materials in Electrochemical Supercapacitor Applications

Citrus fruit residues as alternative precursors to developing H2O and CO2 activated carbons and its application for Cu(II) adsorption

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