Adsorptive removal of methylene blue from aqueous solution using different agricultural wastes as adsorbents

Dardouri, Sana; Sghaier, Jalila

doi:10.1007/s11814-017-0008-2

Cited by 44 publications

(14 citation statements)

References 32 publications

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“…Large amounts of methylene blue (MB) are also utilized in the food, cosmetics, and pharmaceutical sectors. [2,5,6] However, any of the aforementioned enterprises that release wastewater containing MB dye do so at the risk of human health. According to reports, MB dye is harmful to both plants and people's health.…”

Section: Introductionmentioning

confidence: 99%

“…One of the synthetic dyes mentioned is methylene blue (3,7‐bis(dimethylamino) phenothiazine chloride tetra methylthionine chloride), which is frequently used to color paper, cotton, wool, and silk. Large amounts of methylene blue (MB) are also utilized in the food, cosmetics, and pharmaceutical sectors [2,5,6] . However, any of the aforementioned enterprises that release wastewater containing MB dye do so at the risk of human health.…”

Section: Introductionmentioning

confidence: 99%

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Elimination of Methylene Blue from Aqueous Medium Using an Agricultural Waste Product of Crude Corn Silk (Stylus maydis) and Corn Silk Treated with Sulphuric Acid

Ekinci

2023

ChemistrySelect

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The objective of this study is to employ an adsorption technology to remove methylene blue from the aqueous solution. Methylene blue is one of the dyestuffs that are discharged to wastewater after being used extensively in the industry and creating pollution. A residue of an agricultural product called corn silk was employed in the adsorption process, along with corn silk that had been sulphuric acid‐treated. Using methods like FT‐IR, SEM, EDX, and TGA, the structures of crude corn silk (CCS) and modified corn silk (MCS) were clarified. The ideal adsorption conditions for both adsorbents were found to be equilibrium contact period, pH, the dose of adsorbent, and beginning methylene blue concentration. At 293, 313, and 333 K, adsorption kinetic and isotherm experiments were conducted. It was determined that both adsorptions were compatible with the pseudo‐second‐order kinetic model kinetically and the Freundlich isotherm model isothermally with higher R2 values. At 333 K, the maximum adsorption capacities (qm) of CCS and MCS were calculated to be respectively 59.5 mg g−1 and 400 mg g−1. The findings demonstrated that although crude corn silk adsorbs methylene blue, sulphuric acid treatment greatly increases its adsorption ability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Elimination of Methylene Blue from Aqueous Medium Using an Agricultural Waste Product of Crude Corn Silk (Stylus maydis) and Corn Silk Treated with Sulphuric Acid

Ekinci

2023

ChemistrySelect

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“…It is also extensively utilized in food, cosmetics, and pharmaceutical sectors. [16] Exposure to MB can lead to severe diseases and cause several potential health issues in both humans and animals, including Heinz body formation, tissue necrosis, jaundice, cyanosis, shock, vomiting and increased heart rate. [17,18] Various carbon-based adsorbents have been tested for the removal of MB, including modified activated carbon, graphitic carbon, porous carbon, carbon nanotubes, and biochar, as reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Easy Recovered Magnetic Bark Biochar for Methylene Blue Removal: Preparation Characterization and Adsorption Parameters Study

Zeghioud,

Mouhamadou

2023

ChemistrySelect

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In this study, two types of magnetic biochars (Magnetic Bark Biochar with protocol 1 (MBB1) and Magnetic Bark Biochar with protocol 2 (MBB2)) were synthesized using pristine poplar bark biochar (PBB) via co‐precipitation. The two prepared magnetic biochars were tested to investigate the aqueous methylene blue (MB) removal performances. MB dye was used as a common pollutant for biochar quality evaluation and the obtained performance in this work was compared with literature. Different analysis techniques such as Scanning Electron Microscope (SEM), Energy Dispersive X‐ray Spectroscopy (EDS), Brunauer‐Emmett‐Teller (BET), porosimetry, Raman spectrometry and Fourier Transform Infrared spectroscopy (FTIR) were used to characterize the obtained materials. Biochars have a microporous structure with an average pore diameter of less than 0.26 nm. Magnetization of bark biochar leads to a loss in specific surface area (from 263.45 m2/g for PBB to 39.22 and 73.02 m2/g for MBB1 and MBB2, respectively) and an increase in total porosity by 85.11 and 12.72 %, respectively. MB adsorption process on MBB1 and MBB2 was best described by the pseudo‐first‐order kinetic model (R2=0.98) and by pseudo‐second‐order kinetic model for PBB (R2=0.9). The Langmuir monolayer adsorption and Marczewski‐jaroniec (M‐J) models presented the best fit for both PBB and MBB2 showing favourable adsorption process. Based on maximum adsorption capacity (qm: 32.98 mg/g) and the highest R2 value (0.96), MBB1 adsorption isotherm was well described by Langmuir model. Isotherm study revealed that MBB2 has the highest adsorption capacity of 49.02 mg/g followed by PBB with 37.85 mg/g. MB‐biochar interactions are dominated by chemisorption regarding the PBB and by physisorption concerning the magnetic biochars.

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“…In addition to these, cosmetics, food, and pharmaceutical industries consume large amounts of MB dye in their fabrications. 105 MB is a cationic dye and a heterocyclic aromatic compound with a planar structure. 103,106 It has C 16 H 18 N 3 SCl chemical formula with a molecular weight of 319.85 g mol −1 .…”

Section: Dyesmentioning

confidence: 99%

Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review

et al. 2023

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Adsorptive removal of methylene blue from aqueous solution using different agricultural wastes as adsorbents

Cited by 44 publications

References 32 publications

Elimination of Methylene Blue from Aqueous Medium Using an Agricultural Waste Product of Crude Corn Silk (Stylus maydis) and Corn Silk Treated with Sulphuric Acid

Elimination of Methylene Blue from Aqueous Medium Using an Agricultural Waste Product of Crude Corn Silk (Stylus maydis) and Corn Silk Treated with Sulphuric Acid

Easy Recovered Magnetic Bark Biochar for Methylene Blue Removal: Preparation Characterization and Adsorption Parameters Study

Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review

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