Removal of cobalt(II), copper(II), and nickel(II) ions from aqueous solutions using phthalate-functionalized sugarcane bagasse: Mono- and multicomponent adsorption in batch mode

Multicomponent adsorption of benzene, toluene, ethylbenzene, and xylene (BTEX) was assessed in aqueous solutions by montmorillonite modified with tetradecyl trimethyl ammonium bromide (TTAB-Mt). Batch experiments were conducted to determine the influences of parameters including loading rates of surfactant, contact time, pH, adsorbate concentration, and temperature on the adsorption efficiency. Scanning electron microscope (SEM) and X-ray diffractometer (XRD) were used to determine the adsorbent properties. Results showed that the modification of the adsorbent via the surfactant causes structural changes of the adsorbent. It was found that the optimum adsorption condition achieves with the surfactant loading rate of 200% of the cation exchange capacity (CEC) of the adsorbent for a period of 24 h. The sorption of BTEX by TTAB-Mt was in the order ofB<T<E<X. The experimental data were fitted by many kinetic and isotherm models. The results also showed that the pseudo-second-order kinetic model and Freundlich isotherm model could, respectively, be fitted to the experimental data better than other available kinetic and isotherm models. The thermodynamic study indicated that the sorption of BTEX with TTAB-Mt was achieved spontaneously and the adsorption process was endothermic as well as physical in nature. The regeneration results of the adsorbent also showed that the adsorption capacity of adsorbent after one use was 51% to 70% of original TTAB-Mt.

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Adsorption studies of cationic dye on raw and modified sugarcane bagasse from aqueous solutions: Kinetic and Isotherm aspects

Egyptian Journal of Chemistry ◽

10.21608/ejchem.2020.41762.2846 ◽

2020 ◽

Vol 0 (0) ◽

pp. 0-0

Author(s):

Sara Abd Elhafez ◽

Nahla Taha ◽

Azza El-Maghraby

Keyword(s):

Aqueous Solutions ◽

Sugarcane Bagasse ◽

Cationic Dye ◽

Adsorption Studies

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Adsorption Study of Cu2+ Ions from Aqueous Solutions by Bael Flowers (Aegle marmelos)

Biointerface Research in Applied Chemistry ◽

10.33263/briac114.1189111904 ◽

2020 ◽

Vol 11 (4) ◽

pp. 11891-11904

Keyword(s):

Aqueous Solutions ◽

Adsorption Capacity ◽

Metal Ion ◽

Low Cost ◽

Sem Analysis ◽

Ion Concentration ◽

Maximum Adsorption Capacity ◽

Aegle Marmelos ◽

Batch Mode ◽

Initial Ph

In the present study, batch mode adsorption was carried out to investigate the adsorption capacity of dried bael flowers (Aegle marmelos) for the adsorptive removal of Cu(II) ions from aqueous solutions by varying agitation time, initial metal concentration, the dose of adsorbent, temperature, and initial pH of the Cu(II) ion solution. The percentage removal of 98.7% was observed at 50 ppm initial metal ion concentration, 0.5 g/100.00 cm3 adsorbent dosage, within the contact time of 120 minutes at 30 ºC in the pH range of 4 – 7. The sorption processes of Cu(II) ions was best described by pseudo-second-order kinetics. Langmuir isotherm had a good fit with the experimental data with 0.97 of correlation coefficient (R2), and the maximum adsorption capacity obtained was 23.14 mg g-1 at 30 ºC. The results obtained from sorption thermodynamic studies suggested that the adsorption process is exothermic and spontaneous. SEM analysis showed tubular voids on the adsorbent. FTIR studies indicated the presence of functional groups like hydroxyl, –C-O, –C=O, and amide groups in the adsorbent, which can probably involve in metal ion adsorption. Therefore, dried bael flowers can be considered an effective low-cost adsorbent for treating Cu(II) ions.

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Preparation of activated carbon dots from sugarcane bagasse for naphthalene removal from aqueous solutions

Separation Science and Technology ◽

10.1080/01496395.2018.1462832 ◽

2018 ◽

Vol 53 (16) ◽

pp. 2536-2549 ◽

Cited By ~ 8

Author(s):

Azadeh Eslami ◽

Seyed Mehdi Borghei ◽

Alimorad Rashidi ◽

Afshin Takdastan

Keyword(s):

Activated Carbon ◽

Aqueous Solutions ◽

Sugarcane Bagasse ◽

Carbon Dots

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Adsorptive Remediation of Congo Red Dye in Aqueous Solutions Using Acid Pretreated Sugarcane Bagasse

Journal of Polymers and the Environment ◽

10.1007/s10924-020-01665-3 ◽

2020 ◽

Vol 28 (4) ◽

pp. 1129-1137 ◽

Cited By ~ 4

Author(s):

Abd El-Aziz A. Said ◽

Aref A. M. Aly ◽

Mohamed N. Goda ◽

Mohamed Abd El-Aal ◽

Mohamed Abdelazim

Keyword(s):

Aqueous Solutions ◽

Sugarcane Bagasse ◽

Congo Red ◽

Congo Red Dye ◽

Pretreated Sugarcane Bagasse ◽

Red Dye

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ADSORPTION OF ACID ORANGE 7 BY CETYLPYRIDINIUM BROMIDE MODIFIED SUGARCANE BAGASSE

Jurnal Teknologi ◽

10.11113/jt.v78.7276 ◽

2016 ◽

Vol 78 (1-2) ◽

Author(s):

Nik Ahmad Nizam Nik Malek ◽

Nurain Mat Sihat ◽

Mahmud A. S. Khalifa ◽

Auni Afiqah Kamaru ◽

Nor Suriani Sani

Keyword(s):

Aqueous Solution ◽

Adsorption Capacity ◽

Sugarcane Bagasse ◽

Freundlich Isotherm ◽

Isotherm Models ◽

Acid Orange 7 ◽

Cetylpyridinium Bromide ◽

Batch Mode ◽

Acid Orange ◽

Adsorption Data

In the present study, the adsorption of acid orange 7 (AO7) dye from aqueous solution by sugarcane bagasse (SB) and cetylpyridinium bromide (CPBr) modified sugarcane bagasse (SBC) was examined. SBC was prepared by reacting SB with different concentrations (0.1, 1.0 and 4.0 mM) of cationic surfactant, CPBr. The SB and SBC were characterized using Fourier transform infrared (FTIR) spectroscopy. The adsorption experiments were carried out in a batch mode. The effect of initial AO7 concentrations (5-1000 mg/L), initial CPBr concentrations and pH of AO7 solution (2-9) on the adsorption capacity of SB and SBC were investigated. The experimental adsorption data were analyzed using Langmuir and Freundlich isotherm models. The adsorption of AO7 onto SB and SBC followed Freundlich and Langmuir isotherm models, respectively. The maximum uptake of AO7 was obtained by SBC4.0 (SB treated with 4.0 mMCPBr) with the adsorption capacity of 144.928 mg/g. The highest AO7 removal was found to be at pH 2 and 7 for SB and SBC, respectively. As a conclusion, sugarcane bagasse modified with CPBr can become an alternative adsorbent for the removal of anionic compounds in aqueous solution.

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Removal of nickel (II) ions from aqueous solutions by biosorption on sugarcane bagasse

Journal of the Taiwan Institute of Chemical Engineers ◽

10.1016/j.jtice.2011.10.011 ◽

2012 ◽

Vol 43 (2) ◽

pp. 275-281 ◽

Cited By ~ 106

Author(s):

I. Alomá ◽

M.A. Martín-Lara ◽

I.L. Rodríguez ◽

G. Blázquez ◽

M. Calero

Keyword(s):

Aqueous Solutions ◽

Sugarcane Bagasse

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Evaluation of Chitosan Modified by Sodium Dodecyl Sulfate for Removing Hexavalent Chromium from Aqueous Solutions

Jordan Journal of Chemistry ◽

10.47014/15.1.2 ◽

2020 ◽

pp. 13-22

Keyword(s):

Sodium Dodecyl Sulfate ◽

Aqueous Solutions ◽

Hexavalent Chromium ◽

Sodium Dodecyl ◽

Second Order ◽

Order Kinetic ◽

Batch Mode ◽

Dodecyl Sulfate ◽

Pseudo Second Order ◽

Langmuir And Freundlich Models

Hexavalent chromium (Cr(VI)) has the characteristic of forming anionic species, which are very toxic, very soluble in water and difficult to be removed. In this study, dichromate removal from aqueous solutions by chitosan and chitosan modified by sodium dodecyl sulfate (SDS) was addressed. The effect of various experimental parameters, such as pH (1-9), initial concentration (10-100 mg L-1), adsorbent dose (0.005-0.350 g) and contact time (5-60 min) was investigated. All experiments were conducted in batch mode at room temperature (~21 oC). The obtained equilibrium adsorption isotherms were analyzed using the Langmuir and Freundlich models. Furthermore, the kinetics of dichromate removal was analyzed by pseudo-first order, pseudo-second order and the Elovich models. Optimum conditions for obtaining high removal (~97%) within a relatively short time (60 min) are: 5.0 pH, 0.100 g SDS-chitosan dosage and an initial Cr2O72- concentration of 10 mg L-1. The dichromate adsorption capacity of chitosan is 8.3 mg L-1, while that of SDS-chitosan is 9.7 mg L-1. In addition, the adsorption of dichromate by chitosan and SDS-chitosan is well-fitted by the Langmuir and Freundlich models while the adsorption kinetics is best fitted by the pseudo-second-order kinetic model.

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