Development of carbonaceous material from grapefruit peel with microwave implemented-low temperature hydrothermal carbonization technique for the adsorption of Cu (II)

Semerciöz, Ayşe Selcen; Göğüş, Fahrettin; Çelekli, Abuzer; Bozkurt, Hüseyin

doi:10.1016/j.jclepro.2017.07.159

Cited by 69 publications

(33 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The metal sorption declined as the pH increase further. In a particular pH range, most metal sorption is enhanced with pH, increasing to a certain value followed by a reduction on further pH increase (Guo et al 2008;Pavasant et al 2006;Semerciöz et al 2017).…”

Section: Effect Of Ph Of the Solution On Batch Sorptionmentioning

confidence: 99%

“…A peak at 3424 cm −1 is indicating the presence of hydroxyl (-OH) groups. Strong band at 2921 cm −1 is due to C-H stretching frequency (Semerciöz et al 2017) and peak at 1634 cm −1 is due to C=O stretching mode of the primary and secondary amides (Reddy et al 2010). Weak band at 1462 cm −1 is attributed to aromatic C=C and the strong band at 1041 cm −1 is due to C-O stretching of alcoholic groups (Blazquez et al 2011).…”

Section: Ft-ir Study Of the Shell Dustmentioning

confidence: 99%

See 1 more Smart Citation

Valorization of aquaculture waste in removal of cadmium from aqueous solution: optimization by kinetics and ANN analysis

Aditya

Hossain

2018

Appl Water Sci

View full text Add to dashboard Cite

Cadmium is one of the most hazardous heavy metal concerning human health and aquatic pollution. The removal of cadmium through biosorption is a feasible option for restoration of the ecosystem health of the contaminated freshwater ecosystems. In compliance with this proposition and considering the efficiency of calcium carbonate as biosorbent, the shell dust of the economically important snail Bellamya bengalensis was tested for the removal of cadmium from aqueous medium. Following use of the flesh as a cheap source of protein, the shells of B. bengalensis made up of CaCO 3 are discarded as aquaculture waste. The biosorption was assessed through batch sorption studies along with studies to characterize the morphology and surface structures of waste shell dust. The data on the biosorption were subjected to the artificial neural network (ANN) model for optimization of the process. The biosorption process changed as functions of pH of the solution, concentration of heavy metal, biomass of the adsorbent and time of exposure. The kinetic process was well represented by pseudo second order (R 2 = 0.998), and Langmuir equilibrium (R 2 = 0.995) had better fits in the equilibrium process with 30.33 mg g −1 of maximum sorption capacity. The regression equation (R 2 = 0.948) in the ANN model supports predicted values of Cd removal satisfactorily. The normalized importance analysis in ANN predicts Cd 2+ concentration, and pH has the most influence in removal than biomass dose and time. The SEM and EDX studies show clear peaks for Cd confirming the biosorption process while the FTIR study depicts the main functional groups (-OH, C-H, C=O, C=C) responsible for the biosorption process. The study indicated that the waste shell dust can be used as an efficient, low cost, environment friendly, sustainable adsorbent for the removal of cadmium from aqueous solution.

show abstract

Section: Effect Of Ph Of the Solution On Batch Sorptionmentioning

confidence: 99%

Section: Ft-ir Study Of the Shell Dustmentioning

confidence: 99%

Valorization of aquaculture waste in removal of cadmium from aqueous solution: optimization by kinetics and ANN analysis

Aditya

Hossain

2018

Appl Water Sci

View full text Add to dashboard Cite

show abstract

“…The adsorption process provides a good alternative, since the design and operation of the process is more economical, simple, and flexible; and adsorbent regeneration is easier [13] [26], grapefruit peel [27], and algal biomass [28]. Another affordable candidate adsorbent is charcoal derived from the pyrolysis residue of oil palm shell.…”

Section: Introductionmentioning

confidence: 99%

Removal of Copper Ions From Aqueous Solution Using Palm Shell Charcoal Activated by Naoh

Faisal¹

2018

GEOMATE

View full text Add to dashboard Cite

Charcoal nanoparticles obtained through pyrolysis of palm kernel and activated by NaOH were prepared for adsorption of copper ions (Cu 2+ ) from aqueous solutions. The effect of contact time (30-150 min) and initial adsorbate concentration (30-150 ppm) on adsorption of Cu 2+ ions was investigated using batch adsorption experiments. Adsorption efficiency, suitability of Langmuir and Freundlich adsorption models, and kinetics of adsorption were studied. The results show that efficiency of Cu 2+ ion removal decreased with increasing initial adsorbate concentration. Higher removal efficiencies (99%) were achieved at initial adsorbate concentration of 30 ppm and contact time of 90 min. The adsorption process was well described by the Freundlich isotherm model with an exponent (n) and equilibrium constant (K f ) of 9.59×10 -5 mg/g and 0.182, respectively. .

show abstract

“…After the adsorption process ((figure 1(c)), losing of some peaks or decreasing of transmittance (T %) could be thought as possible interaction of dye molecules and functional groups at these bands [35]. The peak of -COOH stretching at 1642 cm −1 (figure 1(b)) shifts to 1640 cm −1 (figure 1(c)) with decrement of intensity.…”

Section: Characterization Of Adsorbentmentioning

confidence: 99%

“…Cd 2+ [53] and Cu 2+ [54], so the presence of some ions in the solution may reduce the adsorption capacity of pomelo peel for Congo red. In addition to the competitive effect of ions, the ionic strength also affects the electrostatic interaction.…”

Section: Effect Of Other Co-ionsmentioning

confidence: 99%

Biosorbents prepared from pomelo peel by hydrothermal technique and its adsorption properties for congo red

Zheng

Sun

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

A new kind of biosorbent was prepared from pomelo peel by using potassium hydroxide as activating agent and hydrothermal treatment method. The characteristics of materials were analyzed by SEM, BET and FTIR. Increasing the adsorbent dosage (from 2.5 to 17.5 g l −1 ) and contents of congo red in solution (from 20 to 50 mg l −1 ) cause the increment of removal rate of congo red. On the other side, the removal rate is decrement with rising of temperature and pH. The maximum adsorption quantity of biosorbent was 144.93 mg g −1 at 303 K, which calculated by Langmuir model. The pseudo-firstorder kinetic model, pseudo-second-order kinetic model and intra-particle diffusion model were used to explain adsorption process. The value of Gibbs free energy (ΔG) is −7.63 (kJ/mol) at 303 K and the enthalpy change (ΔH) is −31.43 (kJ/mol), meaning that adsorption behavior for congo red is spontaneous.

show abstract

Development of carbonaceous material from grapefruit peel with microwave implemented-low temperature hydrothermal carbonization technique for the adsorption of Cu (II)

Cited by 69 publications

References 46 publications

Valorization of aquaculture waste in removal of cadmium from aqueous solution: optimization by kinetics and ANN analysis

Valorization of aquaculture waste in removal of cadmium from aqueous solution: optimization by kinetics and ANN analysis

Removal of Copper Ions From Aqueous Solution Using Palm Shell Charcoal Activated by Naoh

Biosorbents prepared from pomelo peel by hydrothermal technique and its adsorption properties for congo red

Contact Info

Product

Resources

About