Magnetic amendment material based on bio-char from edible oil industry waste. Its performance on aromatic pollutant removal from water

Casoni, Andrés I.; Mendioroz, Pamela; Volpe, María Alicia; Gutierrez, Victoria

doi:10.1016/j.jece.2019.103559

Cited by 15 publications

(1 citation statement)

References 32 publications

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“…16 Be-sides, the magnetization of this biochar makes the catalyst easier to handle with and to recover from liquid media. 17 We started our studies of the palladium-catalyzed direct annulation using aniline (1a) and 1,2-dichlorobenzene (2a) as starting materials. The performance of different palladium sources was evaluated following modifications in the protocol reported by Ackermann 15a {[Pd] (5 mol %) Nmethyl-2-pyrrolidinone (NMP), K 3 PO 4 (3 mmol), 130 °C, 18 h} (Table 1).…”

Section: Paper Synthesismentioning

confidence: 99%

Convenient One-Pot Synthesis of 9H-Carbazoles by Microwave Irradiation Employing a Green Palladium-Based Nanocatalyst

et al. 2021

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An efficient palladium-catalyzed tandem reaction for the one-pot synthesis of 9H-carbazoles under microwave irradiation is developed. This approach involves a sequential Buchwald–Hartwig amination and a direct arylation from affordable and inexpensive anilines and 1,2-dihaloarenes. For the development of this purpose, a novel and magnetically recoverable palladium nanocatalyst supported on a green biochar under ligand-free conditions is used. Compared to other existing palladium-based protocols, the present synthetic methodology shows a drastic reduction in reaction times and excellent compatibility with different functional groups allowing to obtain a small library of 9H-carbazoles in high yields and with good regioselectivity. This procedure represents the first example in the direct synthesis of carbazoles using a heterogeneous palladium nanocatalyst from commercial precursors. To examine the application of this protocol, a direct and scalable synthesis of the bioactive carbazole alkaloid clausenalene from commercially available starting materials is described.

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Section: Paper Synthesismentioning

confidence: 99%

Convenient One-Pot Synthesis of 9H-Carbazoles by Microwave Irradiation Employing a Green Palladium-Based Nanocatalyst

et al. 2021

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Potential and future prospects of biochar-based materials and their applications in removal of organic contaminants from industrial wastewater

Gupta

Pandit

et al. 2022

J Mater Cycles Waste Manag

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Microwave-assisted extraction of valuable phenolics from sunflower pomace with natural deep eutectic solvents and food applications of the extracts

Şen,

Nemli,

Bekdeşer

et al. 2024

Biomass Conv. Bioref.

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A green process, both in terms of solvent (natural deep eutectic solvents, NADES) and extraction method (microwave-assisted extraction, MAE) for the recovery of bioactive components from sunflower pomace (SFP, a by-product of oil extraction process), was designed to contribute to their sustainable valorization. For the extraction of valuable phenolics from sunflower pomace, nine potential NADES were prepared. Among them, choline chloride-urea-water (CC-U-W) at a molar ratio of 1:2:4 was selected for extraction, showing better yield and physicochemical properties. Operational parameters (extraction temperature, time, water ratio, and solvent-to-solid ratio) for MAE were optimized and modeled utilizing response surface methodology. Under optimal conditions, the antioxidant properties of SFP extract were evaluated by CUPRAC, ABTS, and DPPH methods. The total phenolic contents of extracts were evaluated by the Folin–Ciocalteu method. Phenolics were characterized by using the HPLC–PDA system. The results showed that SFP NADES extract had potential antioxidant activity which was higher than that of traditional solvents. In order to better evaluate SFP extract as a valuable food ingredient, SFP extracts at a ratio of 5, 10, and 20% added smoothie-like beverages with strawberries and yogurt were prepared. Fortification of beverages with NADES extract enhanced antioxidant efficiency, increasing total antioxidant capacity in a range of 12.4 to 68.6% and free radical scavenging capacity between 0.4 to 67.9% during both the initial and the in vitro gastrointestinal digestion stages. The addition of SFP NADES extract to food samples made a positive contribution in terms of the antioxidant activity of the final product. The results of this study revealed that sunflower by-products can be evaluated as a potential antioxidant source which is easily accessible, and the proposed extraction process has an important potential to recover bioactive compounds with high efficiency.

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Magnetic amendment material based on bio-char from edible oil industry waste. Its performance on aromatic pollutant removal from water

Cited by 15 publications

References 32 publications

Convenient One-Pot Synthesis of 9H-Carbazoles by Microwave Irradiation Employing a Green Palladium-Based Nanocatalyst

Convenient One-Pot Synthesis of 9H-Carbazoles by Microwave Irradiation Employing a Green Palladium-Based Nanocatalyst

Potential and future prospects of biochar-based materials and their applications in removal of organic contaminants from industrial wastewater

Microwave-assisted extraction of valuable phenolics from sunflower pomace with natural deep eutectic solvents and food applications of the extracts

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