Modification of chitin with high adsorption capacity for methylene blue removal

Cao, Yun-Li; Zi-hong, Pan; Shi, Qing-Xiang; Yu, Jiaguo

doi:10.1016/j.ijbiomac.2018.03.138

Cited by 76 publications

(32 citation statements)

References 49 publications

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“…It is clear, that the adsorption process of MB molecules on the Fe 3 O 4 @C particles could be better described by Freundlich isotherm model due to the goodness of fitting curve with experiment data in Fig. and the Freundlich correlation coefficient values higher than Langmuir fitting values presented in Table , implying the sorption type might be classed as the mass transfer of heterogeneous system . The maximum adsorbed amount of MB ions was calculated by Langmuir model, 16.33 mg/g and 19.13 mg/g respectively at 298 K and 308 K, deducing the MB sorption reaction was endothermic.…”

Section: Resultsmentioning

confidence: 84%

“…6 and the Freundlich correlation coefficient values higher than Langmuir fitting values presented in Table 1, implying the sorption type might be classed as the mass transfer of heterogeneous system. 39,40 The maximum adsorbed amount of MB ions was calculated by Langmuir model, 16.33 mg/g and 19.13 mg/g respectively at 298 K and 308 K, deducing the MB sorption reaction was endothermic. Furthermore, the other adsorbents' uptake capacity for MB molecules are presented in Table 2.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

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Fe₃O₄@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal

Zeng

Qiao

Zhai

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Iron (Fe)‐containing groundwater treatment residual is a kind of waste from groundwater treatment plants, showing good potential to be reused. Attention has been paid to Fe‐based magnetic water treatment materials for their easy magnetic separation, and in the meantime, kinds of adsorbents were developed to address the severe global dyes pollution. RESULTS Black magnetic material was obtained with using the iron‐containing wastes as iron source without adding other iron chemical reagents by hydrothermal reaction. The X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS) and Fourier‐transform infrared (FTIR) results show that the product is comprised of crystalline iron(II,III) oxide (Fe3O4) core and amorphous carbon shell (Fe3O4@C), and the core‐shell structure can also been seen clearly in transmission electron microscopy (TEM) images. Vibrating sample magnetometer (VSM) result shows its saturation magnetization is 33.56 emu/g. This sample's sorption experiments for methylene blue (MB) removal were conducted, and the experiment results indicated that this sample could be used in a wide range of pH (5–12) and the adsorption might be a complex chemical diffusion process consisting of boundary layer effect due to kinetic modeling fitting analysis. The maximum sorption amount of MB was 16.33 and 19.13 mg/g, respectively at 298 K and 308 K. This sample after five regeneration cycles still had 72.1% MB removal rate. CONCLUSION The Fe3O4@C particles with good magnetism were synthesized successfully with Fe‐containing water treatment residuals, water treatment waste sludge, via a one‐step hydrothermal reaction, which could be of reasonable analogy for treating other Fe‐containing industrial waste. Furthermore, this sample could be used as adsorbent for MB molecules removal from dyed water with good reusability and easy magnetic separation. © 2019 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 84%

Section: Adsorption Isothermsmentioning

confidence: 99%

Fe₃O₄@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal

Zeng

Qiao

Zhai

et al. 2019

J of Chemical Tech & Biotech

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“…In addition, the MB adsorption capacities of the green and the black olive stones were compared with other previous studies; it is concluded that their adsorption capacities were much higher than other adsorbents [71][72][73][74][75][76][77][78][79] .…”

Section: Adsorption Isotherms Effect Of the Solution Ph On The Mb Admentioning

confidence: 89%

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Al-Ghouti

Al-Absi

2020

Sci Rep

284

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In the current study, the mechanistic understanding of the adsorption isotherm and thermodynamic aspects of cationic methylene blue (MB) dye adsorption onto cellulosic olive stones biomass from wastewater were investigated. The batch adsorption of MB onto the olive stones (black and green olive stones) was tested at a variety of pH, dye concentrations, temperatures, and biomass particle sizes. The adsorption thermodynamics such as Gibbs free energy, enthalpy, and entropy changes were also calculated. Moreover, the desorption studies of MB from the spent olive stones were studied to explore the re-usability of the biomasses. The results revealed that under the optimum pH of 10, the maximum MB uptake was achieved i.e. 80.2% for the green olive stones and 70.9% for the black olive stones. The green olive stones were found to be more efficient in remediating higher MB concentrations from water than the black olive stones. The highest MB removal of the green olive stones was achieved at 600 ppm of MB, while the highest MB removal of the black olive stones was observed at 50 ppm of MB. Furthermore, for almost all the concentrations studied (50–1000 ppm), the MB adsorption was the highest at the temperature of 45 °C (P value < 0.05). It was shown by the Fourier transform infrared that the electrostatic interaction and hydrogen bonding were proposed as dominant adsorption mechanisms at basic and acidic pH, respectively. While the hydrophobic-hydrophobic interaction was a dominant mechanism at neutral pH. The thermodynamic studies revealed that the adsorption process was endothermic, spontaneous, and favorable. Moreover, the real wastewater experiment and the desorption studies showed that the green and black olive stones were a cost-effective and promising adsorbents for MB remediation from wastewater on account of their high adsorption and desorption removal capacities.

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“…They concluded that the adsorption of RY2 by chitin from aqueous solution is favorable at low temperature and pH and the adsorption of RB5 by chitin is favorable at high temperature and pH. Cao and coworkers studied the adsorption isotherms and kinetic analysis of methylene blue (MB) onto porous chitin sorbents (PChs) with different content of chitin, ranging from 0.9 to 3.5% [85]. The maximum adsorption capacity of 384 mg/g with 79.8% MB removal was observed for PChs containing 3.5% chitin.…”

Section: Dye Removalmentioning

confidence: 99%

“…Machine oil and dichloromethane [105] CO 2 [115,[117][118][119] Chitin Reactive yellow 2 and Reactive black 5 [84] Methylene blue [85,86] Indigo carmine [87] Fe(III) and Cu(II) [98] Chloroform, gasoline oil, hexane, toluene, [106] silicon oil, pump oil CO 2 [39] Chitosan Methylene blue [88] Malachite green [89] Acid red 73 and Pb(II) [99] As(III) and As(IV) [100] Carbon tetrachloride, ethylene glycol, silicon oil, [107] Ethylene acetate, pump oil, crude oil, acetone, ethanol, and gasoline [107] Diesel [107,108] Marine diesel [108] CO 2 [120,121] Dassanayake et al investigated the preparation of activated carbon monoliths derived from cellulose-based aerogel (aerocellulose) and its CO 2 adsorption properties at low and ambient temperatures [117]. The activated carbon prepared from aerocellulose exhibited a specific surface area of 753 m 2 /g, a total pore volume of 0.72 cm 3 /g, and a micropore volume of 0.27 cm 3 /g.…”

Section: Biopolymers/biopolymers Based Composites Pollutants Referencesmentioning

confidence: 99%

Biopolymer-Based Materials from Polysaccharides: Properties, Processing, Characterization and Sorption Applications

Dassanayake¹,

Acharya²,

Abidi³

2019

Advanced Sorption Process Applications

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Biopolymers are polymeric materials derived from biological sources. Due to their renewability, abundance, biodegradability and other unique properties such as high adsorption capabilities and ease of functionalization they have been investigated for several industrial applications including sorption. Polysaccharides especially cellulose, chitin and chitosan are important biopolymers because of their high abundance, wide distribution and low cost of production. This chapter provides an overview of properties, common processing methods, and material characterization of three commonly studied biopolymers namely cellulose, chitin and chitosan. It provides a thorough review on recent developments on utilization of cellulose, chitin, and chitosan-based materials for various sorption applications. Specifically, their application and efficiency in organic dye removal, heavy metals removal, oil and solvent spillage cleanup, and CO 2 adsorption are presented and discussed.

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Modification of chitin with high adsorption capacity for methylene blue removal

Cited by 76 publications

References 49 publications

Fe₃O₄@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal

Fe₃O₄@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Biopolymer-Based Materials from Polysaccharides: Properties, Processing, Characterization and Sorption Applications

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Modification of chitin with high adsorption capacity for methylene blue removal

Cited by 76 publications

References 49 publications

Fe3O4@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal

Fe3O4@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Biopolymer-Based Materials from Polysaccharides: Properties, Processing, Characterization and Sorption Applications

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Product

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Fe₃O₄@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal

Fe₃O₄@C particles synthesized with iron‐containing water treatment residuals and its potential for methylene blue removal