Highly efficient and straightforward conversion of sugarcane bagasse into high value-added chemicals using carbonaceous catalyst in deep eutectic solvent

Nguyen, Trinh Hao; Phan, Ha Bich; Le, Diep Dinh; Nguyen, Hang Thien Thi; Tran, Kim Nguyen; Nguyen, Long Bao; Tran, Phuong Hoang

doi:10.1016/j.biombioe.2023.107004

Cited by 4 publications

(2 citation statements)

References 69 publications

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“…After the functionalization of g-C 3 N 4 with −SO 3 H, some new peaks appeared in the region of 1000 to 1200 cm –1 , which are symmetric and asymmetric SO bonds. As expected, the overlap of SO 2 and SO asymmetrically makes the peaks unobservable . These peaks correspond to vibrations associated with symmetric and antisymmetric stretching.…”

Section: Resultsmentioning

confidence: 99%

“…As expected, the overlap of SO 2 and S�O asymmetrically makes the peaks unobservable. 27 These peaks correspond to vibrations associated with symmetric and antisymmetric stretching. The FT-IR analysis has successfully confirmed the molecular structure of the thermal condensation g-C 3 N 4 and the existence of sulfonic acid groups on the surface of the material.…”

Section: Characterization Of Catalystmentioning

confidence: 99%

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Efficient Conversion of Carbohydrates into 5-Hydroxymethylfurfural Using Graphitic Carbon Nitride Bearing Brönsted Acid Sites

Le,

Nguyen,

Le Nguyen

et al. 2024

Energy Fuels

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The current focus in biomass conversion research is to achieve high yields and selectivity of 5-hydroxymethylfurfural (HMF) as a platform chemical from renewable sources, emphasizing the need for a sustainable and efficient heterogeneous acid catalyst. The goal is to develop a low-cost, energy-efficient approach that aligns with sustainability principles. In this work, graphitic carbon nitride bearing Bronsted acid sites (g-C 3 N 4 − SO 3 H) was synthesized and applied as a catalyst for converting carbohydrates into HMF in dimethyl sulfoxide (DMSO) as a solvent. The catalyst structure was determined using modern spectroscopic techniques such as Fourier-transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution X-ray photoelectron spectrometry (HRXPS), transmission electron microscopy (TEM), and Brunauer− Emmett−Teller (BET), and thermogravimetric analysis (TGA) evaluated the stability of the catalyst. In order to optimize the reaction efficiency, several factors were examined, such as the temperature, solvents, catalyst mass, and reaction time. These parameters were carefully studied and adjusted in order to optimize the reaction conditions. As a result, the reaction yield was highest at about 60% HMF after 3 h at 120 °C with g-C 3 N 4 −SO 3 H (30 mg) using fructose as the substrate. The combination of AlCl 3 and g-C 3 N 4 −SO 3 H gave an excellent yield, which accounted for 58% of HMF from glucose at 3 h at 120 °C. Additionally, the catalyst employed in our study can be easily recovered and reused for subsequent reactions. Our research presents a straightforward and efficient procedure for synthesizing the catalyst, enabling the conversion of glucose or fructose into 5-hydroxymethylfurfural (HMF) with a high yield within a short reaction time.

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Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Catalystmentioning

confidence: 99%

Efficient Conversion of Carbohydrates into 5-Hydroxymethylfurfural Using Graphitic Carbon Nitride Bearing Brönsted Acid Sites

Le,

Nguyen,

Le Nguyen

et al. 2024

Energy Fuels

Self Cite

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Highly efficient and recyclable chromium/nitrogen-doped carbon nanotube catalysts with unexpected active sites for conversion of fructose into 5-hydroxymethylfurfural

Nguyen,

Phan

et al. 2024

Energy

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Plasma-engineered sugarcane bagasse: A novel strategy for efficient mercury removal from aqueous solutions

Salas,

Antunes,

Rangel

et al. 2024

Preprint

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Metal ion adsorption using agro-industrial residues has shown promising results in remediating contaminated waters. However, adsorbent effectiveness relies on their properties, often necessitating processing for modification. Considering this, plasma treatment is effective in modifying material surfaces physically and chemically. This study investigated the modification of sugarcane bagasse (SB) using plasma-treated and evaluated its efficacy as a novel adsorbent for mercury removal from aqueous solutions. SB underwent low-temperature plasma treatment with sulfur hexafluoride (SF6) as the working gas, varying treatment times (2, 30, and 60 minutes) and fixed powers (80, 190, and 300 W) at 16 Pa pressure. Characterization via scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS/SEM), Fourier transform infrared spectroscopy (FTIR) and zero point of charge (pHpzc) revealed significant structural changes like increased in porosity and alteration in proportion atomic. Additionally, the successful incorporation of fluorine was confirmed in all treatment conditions, while sulfur was detected in only some samples. Amongst the tested conditions, the SB treated with 300 W for 60 minutes demonstrated the highest mercury removal efficiency, achieving an impressive 83.67% removal rate compared to untreated SB, which yielded only 57.95%. The adsorption mechanism exhibited both physical and chemical behavior, with chemisorption being the dominant process. The Freundlich model provided the best fit to the experimental data, with an R2 value of 0.97. In conclusion, plasma treatment can be a promising alternative for improving the physical and chemical characteristics of SB adsorbents, thereby improving their efficiency in removing mercury from aqueous solutions.

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Highly efficient and straightforward conversion of sugarcane bagasse into high value-added chemicals using carbonaceous catalyst in deep eutectic solvent

Cited by 4 publications

References 69 publications

Efficient Conversion of Carbohydrates into 5-Hydroxymethylfurfural Using Graphitic Carbon Nitride Bearing Brönsted Acid Sites

Efficient Conversion of Carbohydrates into 5-Hydroxymethylfurfural Using Graphitic Carbon Nitride Bearing Brönsted Acid Sites

Highly efficient and recyclable chromium/nitrogen-doped carbon nanotube catalysts with unexpected active sites for conversion of fructose into 5-hydroxymethylfurfural

Plasma-engineered sugarcane bagasse: A novel strategy for efficient mercury removal from aqueous solutions

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