Abstract:Biochars from peanut shell wastes were produced and further modified with KOH and HNO3 to efficiently remove two industrial dyes, Mordant Orange 1 and Green Malachite oxalate, in aqueous systems. The materials were characterized through elemental analysis, N2 adsorption isotherms, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and the determination of the point of zero charge, pHPZC. The basic and, particularly, the acid treatments increased the specific surface area by 15 … Show more
“…This research aims to achieve at least two objectives: first, to create potential adsorbent materials for organic dye adsorption from lowcost agricultural waste available in nature, and second, to contribute to reducing environmental pollution caused by these waste products. Currently, many studies have been published on the use of agricultural waste as a precursor for synthesizing adsorbent materials for organic dyes adsorption, such as orange peels, 2,3 grapefruit peel, [4][5][6][7] coffee grounds, [8][9][10] banana peels, [11][12][13][14][15] corn waste, [16][17][18][19][20] peanut shells, [21][22][23] durian waste, [24][25][26][27] dragon fruit peels, [28][29][30] etc. Dragon fruit peels have been attracting attention for synthesizing adsorbent materials for organic dyes adsorption due to the presence of compounds such as phenolic compounds, betalains, betacyanins, and other functional groups like C═C, C═O, OH, and NH.…”
This study presents the adsorption process of methylene blue and other organic pigments in water samples using synthetic materials derived from agricultural waste combined with Fe3O4. The properties of the materials were determined through Fourier transform infrared spectroscopy, scanning electron microscopy, X‐ray diffraction, and nitrogen adsorption‐desorption isotherm. The result shows the successful association of Fe3O4 on materials prepared from agriculture with a surface area = 3.594 m2 g−1 and a pore size of 49.713 nm. The optimal factors of methylene blue removal process, such as pH, mass, initial concentration, time, and shaking speed, were also investigated, respectively. The maximum adsorption capacity of the material is 268.64 mg g−1, with an adsorption efficiency of 98.84%. The research method was applied to analyze and evaluate the materials' adsorption capacity in the southern provinces of Vietnam water samples.
“…This research aims to achieve at least two objectives: first, to create potential adsorbent materials for organic dye adsorption from lowcost agricultural waste available in nature, and second, to contribute to reducing environmental pollution caused by these waste products. Currently, many studies have been published on the use of agricultural waste as a precursor for synthesizing adsorbent materials for organic dyes adsorption, such as orange peels, 2,3 grapefruit peel, [4][5][6][7] coffee grounds, [8][9][10] banana peels, [11][12][13][14][15] corn waste, [16][17][18][19][20] peanut shells, [21][22][23] durian waste, [24][25][26][27] dragon fruit peels, [28][29][30] etc. Dragon fruit peels have been attracting attention for synthesizing adsorbent materials for organic dyes adsorption due to the presence of compounds such as phenolic compounds, betalains, betacyanins, and other functional groups like C═C, C═O, OH, and NH.…”
This study presents the adsorption process of methylene blue and other organic pigments in water samples using synthetic materials derived from agricultural waste combined with Fe3O4. The properties of the materials were determined through Fourier transform infrared spectroscopy, scanning electron microscopy, X‐ray diffraction, and nitrogen adsorption‐desorption isotherm. The result shows the successful association of Fe3O4 on materials prepared from agriculture with a surface area = 3.594 m2 g−1 and a pore size of 49.713 nm. The optimal factors of methylene blue removal process, such as pH, mass, initial concentration, time, and shaking speed, were also investigated, respectively. The maximum adsorption capacity of the material is 268.64 mg g−1, with an adsorption efficiency of 98.84%. The research method was applied to analyze and evaluate the materials' adsorption capacity in the southern provinces of Vietnam water samples.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.