Surface modification of coconut-based activated carbon by SDS and its effects on Pb2+ adsorption

Song, Xiaolan; Zhang, Mingwan; Zhang, Ying; Huang, Shutao; Geng, Bai-yang; Meng, Rangbin; Yang, Yi-zhao; Zhong, Yishun; Liu, Hongyan

doi:10.1007/s11771-013-1598-4

Cited by 13 publications

(2 citation statements)

References 13 publications

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“… Some signals are related to the aromatic rings of lignin units such as 1,548, 1,440, 1,328, and 1,149 cm −1. Also, the group C−O was observed at 1,244, 1,080 and 1,033 cm −1 , as well as C−O−C . Finally, the peak at 896 and 810 cm −1 is characteristic of cellulose, related to glycosidic linkage …”

Section: Resultsmentioning

confidence: 89%

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Cusioli

Quesada

Baptista

et al. 2019

Env Prog and Sustain Energy

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Methylene blue is a cationic dye used for dyeing cotton, wool, and silk. This dye can cause impacts when reaching water resources due to the reduction of sunlight infiltration, besides the health problems if ingested. Therefore, the complete removal of this contaminant in industrial effluents is indispensable. Currently, soybean hulls residues are used in animal feed supplementation; however, since soybean oil production is large, expressive quantities is discarded in landfills. Thus, the present study aim is to evaluate the adsorption capacity of methylene blue onto soybean hulls as an alternative use of this agroindustrial residue. The material was characterized through morphological and chemical analysis which showed porosity, heterogeneity, and functional groups that favor the adsorption. Due to the mainly negative charge of the surface, the pH did not affect the cationic dye uptake, enabling a wide pH range. After the adsorption studies, the best experimental conditions were at temperatures of 298 K, mass of 0.025 g, and contact time of 180 min, resulting in the maximum adsorption capacity of 169.90 mg g−1. When compared with other low‐cost biosorbent and activated carbons, it can be perceived a potential applicability of soybean hulls in wastewater treatment as an alternative use.

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Section: Resultsmentioning

confidence: 89%

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Cusioli

Quesada

Baptista

et al. 2019

Env Prog and Sustain Energy

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show abstract

“…Tang et al [23] studied the influence of activated carbon micropores and mesopores on the adsorption performance of formaldehyde and found that the adsorption effect of activated carbon is positively correlated with the proportion of micropores; when the specific surface area of the mesopores increases, the time to reach adsorption equilibrium is shortened. Song [24] studied the adsorption of organic pollutants on activated carbon from the perspective of pore size distribution. He proposed that a better pore gradient distribution accelerated the internal diffusion of pollutants in the pore size of activated carbon and improved the adsorption capacity.…”

Section: Activated Carbon and Its Modificationmentioning

confidence: 99%

Research Progress of Adsorption and Photocatalysis of Formaldehyde on TiO₂/AC

Zhu

Wang

Suo

2021

Adsorption Science & Technology

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Based on the increasingly serious formaldehyde pollution, effective degradation of formaldehyde has become a practical problem that humans urgently need to solve. Among many treatment methods, activated carbon has the advantages of large specific surface area, high adsorption efficiency, and uniform pore size distribution. As a kind of clean photocatalytic material for formaldehyde degradation, titanium dioxide supported by activated carbon has become a research hotspot to develop adsorption-catalytic materials for formaldehyde degradation. In this paper, the research progress of activated carbon and its modification, the photocatalytic principle and modification of titanium dioxide, and TiO2/AC materials are reviewed. The results show that the pore size distribution gradient and acidic oxygen-containing functional groups of activated carbon play key roles in the formaldehyde adsorption process. TiO2 doped with metal ions and nonmetal ions can significantly improve the photocatalytic activity. The TiO2/AC material can greatly improve the photocatalytic rate and achieve the technical goal of efficient and clean degradation for formaldehyde.

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BR13 dye removal using sodium dodecyl sulfate modified montmorillonite: Equilibrium, thermodynamic, kinetic and reusability studies

Bayram

Bucak

Öztürk

2020

Chemical Engineering and Processing - Process Intensification

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Surface modification of coconut-based activated carbon by SDS and its effects on Pb2+ adsorption

Cited by 13 publications

References 13 publications

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Research Progress of Adsorption and Photocatalysis of Formaldehyde on TiO₂/AC

BR13 dye removal using sodium dodecyl sulfate modified montmorillonite: Equilibrium, thermodynamic, kinetic and reusability studies

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Surface modification of coconut-based activated carbon by SDS and its effects on Pb2+ adsorption

Cited by 13 publications

References 13 publications

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Research Progress of Adsorption and Photocatalysis of Formaldehyde on TiO2/AC

BR13 dye removal using sodium dodecyl sulfate modified montmorillonite: Equilibrium, thermodynamic, kinetic and reusability studies

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Product

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Research Progress of Adsorption and Photocatalysis of Formaldehyde on TiO₂/AC