One-stage preparation of palm petiole-derived biochar: Characterization and application for adsorption of crystal violet dye in water

Chahinez, Hadj-Otmane; Ouakouak, Abdelkader; Youcef, Leïla; Tran, Hai Nguyen

doi:10.1016/j.eti.2020.100872

Cited by 110 publications

(47 citation statements)

References 36 publications

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“…However, the specific surface areas of the biochars obtained in this research were lower than those exhibited by the other studies. Chahinez et al reported that biochar derived from palm petiole exhibited specific surface area of 640 m 2 .g -1 by the pyrolysis at 700℃ [41]. Lawal et al described that biochar synthesized via steam pyrolysis of oil palm frond at 500℃ followed by the pulverization process resulted in the specific surface area of 406.6 m 2 .g -1 [42].…”

Section: Brunauer-emmett-teller (Bet)mentioning

confidence: 99%

Methylene Blue Removal Using Coconut Shell Biochar Synthesized Through Microwave-Assisted Pyrolysis

et al. 2020

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Indonesia is the world’s second largest producer of coconut. This at the same time resulted in huge generation of coconut shell waste that need to be properly managed to prevent environmental contamination such as water, air and soil pollution. Current techniques of physical and thermal processing are time and energy consuming. This study reports on the conversion of coconut shell biomass into biochar using microwave-assisted pyrolysis (MAP). The MAP processes were carried out at different microwave power (550-650W) and residence time (15-25 minutes). Two of the highest biochar yields were obtained at 550W with the residence times of 15 minutes (91.31 wt%, termed as S1) and 20 minutes (83.88 wt%, termed as S2), respectively. Both values were higher than biochar yield obtained using conventional pyrolysis process i.e. 30.10 wt%. Both S1 and S2 showed considerable capacity to remove 0.6875 mg.g-1 and 0.5165 mg.g-1 methylene blue which had the initial concentration of 25 mg.L-1. The adsorption efficiencies of S1 and S2 biochars were 55.00% and 41.32%, respectively. Results obtained from the FTIR, FESEM and BET analysis also supported the methylene blue removal properties of both S1 and S2, respectively. As a conclusion, coconut shell showed potential as a useful raw material to produce biochar that can be used for methylene blue removal from solution. Nevertheless, more investigation need to be carried out prior to commercialization venture of the coconut-shell based biochar.

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Section: Brunauer-emmett-teller (Bet)mentioning

confidence: 99%

Methylene Blue Removal Using Coconut Shell Biochar Synthesized Through Microwave-Assisted Pyrolysis

et al. 2020

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“…Crystal violet (CV) is a triphenylmethane cationic dye commonly used in the textile, paper and medical industries [ 8 , 9 ]. CV is considered a biohazardous substance due to its highly genotoxic, toxic, mutagenic and carcinogenic nature [ 10 , 11 , 12 ]. In addition, CV has a very intense color, and its presence in the aquatic environment, even at low concentrations (for example, 1 mg/L), increases water turbidity, making photosynthesis by aquatic plants impossible [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Behavior of Crystal Violet and Congo Red Dyes on Heat-Treated Brazilian Palygorskite: Kinetic, Isothermal and Thermodynamic Studies

et al. 2021

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The effect of heat treatment on the adsorptive capacity of a Brazilian palygorskite to remove the dyes crystal violet (CV) and congo red (CR) was investigated. The natural palygorskite was calcined at different temperatures (300, 500 and 700 °C) for 4 h. Changes in the palygorskite structure were evaluated using X-ray diffraction, X-ray fluorescence, thermogravimetric and differential thermal analysis, N2 adsorption/desorption and Fourier transform infrared spectroscopy. The adsorption efficiency of CV and CR was investigated through the effect of initial concentration, contact time, temperature, pH and dosage of adsorbent. The calcination increased the adsorption capacity of palygorskite, and the greatest adsorption capacity of CV and CR dyes occurred in the sample calcined at 700 °C (Pal-700T). The natural and calcined samples at 300 and 500 °C followed the Freundlich isothermal model, while the Pal-700T followed the Langmuir isothermal model. Adsorption kinetics results were well described by the Elovich model. Pal-700T showed better adsorption performance at basic pH, with removal greater than 98%, for both dyes. Pal-700T proved to be a great candidate for removing cationic and anionic dyes present in water.

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“…Crystal violet is a cationic dye used as a textile colorant, paper dye, biological stain, and as veterinary animal drug. It has high toxicity and can cause digestive tract irritation, kidney failure, and cancer [ 1 , 2 , 3 , 4 , 5 ]. Its presence in the aquatic environment, even in low concentrations, leads to plants photosynthesis process disorder.…”

Section: Introductionmentioning

confidence: 99%

“…It has high chemical stability, high solubility, and low biodegradability. It is therefore necessary to remove this stain from residual effluents [ 1 , 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Bathurst Burr (Xanthium spinosum) Powder—A New Natural Effective Adsorbent for Crystal Violet Dye Removal from Synthetic Wastewaters

et al. 2021

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A new natural adsorbent material, Bathurst burr powder, was used to remove crystal violet dye from synthetic wastewaters. Particle size distribution and SEM and FTIR analyses were performed to characterize it. The effect of the operational adsorption process parameters (pH, ionic strength, initial dye concentration, adsorbent dose, contact time, temperature) onto the adsorption process was evaluated in a batch system. Equilibrium, kinetic, and thermodynamic studies were performed in order to understand the adsorption process. Taguchi method and ANOVA test were used to optimize the dye adsorption conditions and to establish the percentage contribution of each factor, respectively. The accuracy of the Taguchi prediction method was analyzed by correlating the predicted dye removal efficiency with the experimentally determined one. The particle size distribution analysis showed that 82.15% of the adsorbent particles have an average size below 0.5 mm. The adsorption process followed the Langmuir isotherm and pseudo-second order kinetic model. Maximum adsorption capacity value (164.10 mg·g−1) was higher compared to many similar adsorbents. The process was endothermic, spontaneous, and favorably involving a physisorption mechanism. The Taguchi method showed that the most influential controllable factor was pH (65% contribution in adsorption efficiency) and the data analysis indicates a very good accuracy of the experimental design (R2 = 0.994). The obtained results demonstrated that Bathurst burr powder can be used as a cheap and efficient adsorbent for crystal violet dye removal from aqueous solution.

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One-stage preparation of palm petiole-derived biochar: Characterization and application for adsorption of crystal violet dye in water

Cited by 110 publications

References 36 publications

Methylene Blue Removal Using Coconut Shell Biochar Synthesized Through Microwave-Assisted Pyrolysis

Methylene Blue Removal Using Coconut Shell Biochar Synthesized Through Microwave-Assisted Pyrolysis

Adsorption Behavior of Crystal Violet and Congo Red Dyes on Heat-Treated Brazilian Palygorskite: Kinetic, Isothermal and Thermodynamic Studies

Bathurst Burr (Xanthium spinosum) Powder—A New Natural Effective Adsorbent for Crystal Violet Dye Removal from Synthetic Wastewaters

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