Adsorptive removal of methylene blue by chemically treated cellulosic waste banana (<i>Musa sapientum</i>) peels

Jawad, Ali H.; Rashid, Ramlah Abd; Ishak, Mohd Azlan Mohd; Ismail, Khudzir

doi:10.1080/16583655.2018.1519893

Cited by 101 publications

(40 citation statements)

References 58 publications

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“…The observation of a peak at about 2921 cm −1 is attributed to asymmetric or symmetric stretching vibrations (C–H) n of the methyl (–CH 3 –) and methylene (–CH 2 –) groups, as expected for hemicellulose, cellulose and lignin 42 . The 1731 cm −1 band associated with C=O stretching of ketones, lactones or carboxyl groups 43 . The bands detected at about 1578 cm −1 and 1600 cm −1 are attributed to the C=C double bonds in the aromatic rings of lignin.…”

Section: Resultsmentioning

confidence: 99%

Studies of the potential of a native natural biosorbent for the elimination of an anionic textile dye Cibacron Blue in aqueous solution

Grabi

Derridj

Lemlikchi

et al. 2021

Sci Rep

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This work is devoted to the adsorption of Cibacron Blue (CB) an anionic textile dye, on bean peel (BP) an agricultural waste with neither activation nor carbonization. The adsorption was realized in batch configuration at ambient temperature in acidic medium. The adsorbent was characterized by FTIR, SEM and BET analyses; the equilibrium isotherms and kinetics were also studied. It has been found that this waste could be used as a low-cost biosorbent for CB elimination under optimal working conditions. The rate of CB elimination reaches 95% on bean bark (3.6 g/L) at pH 2.2 and a reject concentration of 25 mg/L. The pseudo-second-order describes suitably the experimental data and the external diffusion is the rate-determining step. The Freundlich isotherm fits better the CB adsorption with a correlation coefficient (R2) of 0.94 and an RMSE = 1.5115. The negative enthalpy (ΔH) and free enthalpy (ΔG°) indicate a physical and spontaneous nature of the CB biosorption onto the biomaterial.

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Section: Resultsmentioning

confidence: 99%

Studies of the potential of a native natural biosorbent for the elimination of an anionic textile dye Cibacron Blue in aqueous solution

Grabi

Derridj

Lemlikchi

et al. 2021

Sci Rep

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“…For reference, the FTIR spectrum of AB25 is also shown. Before adsorption, the FTIR spectra of BP and DP had similar features, where the main bands were observed at 3400, 2922, 2849, 1733, and 1159 cm −1 which have been assigned to the stretching vibrations of O-H, N-H, C-H, C=O, and C-O (alcohol) or C-N groups, respectively (Dinh et al, 2019;Jawad et al, 2018;Zaidi et al, 2018). There are several low intensity bands at 1648, 1433, and 1065 cm −1 which could be attributed to non-aromatic or unconjugated C=C stretching vibration, C-H bending vibrations, and C-C vibrational modes of conjugated aromatic rings.…”

Section: Functional Groups Of Bp and Dpmentioning

confidence: 99%

“…To further test this assumption, in this study, the adsorptive removal of AB25 on BP and DP was investigated and compared with those reported other agricultural wastes. BP and DP were selected as these two agricultural wastes have been successfully applied as adsorbents for the removal of synthetic dyes (Asbollah et al, 2021;Guiso et al, 2014;Hameed & Hakimi, 2008;Jawad et al, 2018;Mohammed et al, 2012;Mondal & Kar, 2018), physical pollutant (Payus et al, 2021), and heavy metals (Deshmukh et al, 2017). Therefore, the objective of this current study is to evaluate adsorptive removal of AB25 on BP and DP in a batch system and to establish the relevant functional groups, the pH of zero charge (pH pzc ), the surface morphology, and surface characteristics of the adsorbents.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Acid Blue 25 on Agricultural Wastes: Efficiency, Kinetics, Mechanism, and Regeneration

Samat

Shahri

Abdullah

et al. 2021

Air, Soil and Water Research

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In this study, Acid Blue 25 (AB25), which is a negatively charged synthetic dye was removed from an aqueous solution by adsorption onto agricultural wastes, including banana (BP) and durian (DP) peels. The adsorption performances of AB25 were related to surface characteristics of the agricultural wastes, including their chemical functional groups, net surface charge, surface morphology, surface area, and pore volume. Parameters affecting the adsorption, including contact times, initial concentration, pH, and temperature were investigated. The results revealed that the adsorption of AB25 followed pseudo-second order kinetics, and that the adsorption process was controlled by a combination of intraparticle and film diffusion with a two-step mechanism. The equilibrium data could be simulated by the Langmuir isotherm model, suggesting that AB25 molecules are adsorbed on active sites with a uniform binding energy as a monolayer on the adsorbent surface. The adsorption process was spontaneous and exothermic, and the adsorption capacity decreased with the pH of the medium. The spent adsorbents were best regenerated by acid treatment (pH 2), and could be recycled for several adsorption-desorption processes. Under ambient conditions, the maximum adsorption capacities of AB25 on BP and DP were 70.0 and 89.7 mg g−1, respectively, which is much higher than on a large variety of reported adsorbents derived from other agricultural wastes.

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“…The production of ACs via the chemical activation method is preferred over the physical method. The foregoing holds true when the end product is to be hydrophilic and with sufficient oxygen and carbon-bearing functional groups ( Jawad et al., 2018a ). Phosphoric acid is more desirable and widely exploited mong the tested chemical agents for AC production from biomass.…”

Section: Introductionmentioning

confidence: 99%

Meso-microporous activated carbon derived from Raffia palm shells: optimization of synthesis conditions using response surface methodology

Iwar

Ogedengbe

Katibi

et al. 2021

Heliyon

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This study investigated the optimal synthesis conditions for the production of Raffia Palm Shell Activated Carbon (RPSAC) using phosphoric acid as activation agent. The optimization of the synthesis conditions was achieved using the Central Composite Design (CDD) in Response Surface Methodology (RSM). The influences of impregnation ratio, temperature, time and concentration on the specific surface area and yield of RPSAC were evaluated. Based on the CDD, 2FI and quadratic models were developed for the two responses. Analysis of Variance (ANOVA) was utilized to determine the significant factors and factor interactions for each response. All process variables except impregnation ratio were observed to significantly influence the quality of RPSAC. The optimal synthesis conditions for RPSAC were; 523.68 °C, 76.91%, and 103.83 min for temperature, concentration, and time respectively which provided a specific surface area and yield of 1762.92 m 2 /g and 77.98 % respectively. The Scanning Electron Microscopy (SEM) with Energy Dispersive X-Ray (EDX) analyses proved that RPSAC had a meso-micro-porous morphology with high carbon and oxygen contents. Fourier-transform infrared spectroscopy (FTIR) revealed the abundance of hydroxyl, carbonyl and carboxylic groups on RPSAC. X-ray Powder Diffraction (XRD) analysis showed that RPSAC composed mainly of amorphous and disordered microcrystalline phases ascribed to the high quartz content of the precursor. The Brunauer–Emmett–Teller (BET) surface area, average pore diameter, total pore volume, and pH pzc of RPSAC were obtained as 456.10 m 2 /g, 0.25 cm 3 /g, 2.13 nm and 2.10 correspondingly. Thus, RSM was found to be an excellent and desirable tool for optimal synthesis of RPSAC that possess high surface area and porosity suitable for application in the adsorption of both large and small molecular sized pollutants such as dyes and fluoride in real and aqueous solution.

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Adsorptive removal of methylene blue by chemically treated cellulosic waste banana (Musa sapientum) peels

Cited by 101 publications

References 58 publications

Studies of the potential of a native natural biosorbent for the elimination of an anionic textile dye Cibacron Blue in aqueous solution

Studies of the potential of a native natural biosorbent for the elimination of an anionic textile dye Cibacron Blue in aqueous solution

Adsorption of Acid Blue 25 on Agricultural Wastes: Efficiency, Kinetics, Mechanism, and Regeneration

Meso-microporous activated carbon derived from Raffia palm shells: optimization of synthesis conditions using response surface methodology

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