Efficacy of spent black tea for the removal of nitrobenzene from aqueous media

Tariq, Muqaddas; Durrani, Arjumand Iqbal; Farooq, Umar; Tariq, Madiha

doi:10.1016/j.jenvman.2018.06.080

Cited by 15 publications

(10 citation statements)

References 48 publications

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“…The shift in the intensity of these groups after biosorption signifies their role in the binding of Ni(II) ions in the liquid-solid phase. The degree of shifting is related to the active group participation either through precipitation or by developing some electrostatic bonds to sorb the contaminant molecules [47].…”

Section: Biosorbent Characterizationmentioning

confidence: 99%

Adsorptive performance of a mixture of three nonliving algae classes for nickel remediation in synthesized wastewater

Mohammed

Najim

Al-Musawi

et al. 2019

J Environ Health Sci Engineer

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Purpose The present study provided a comprehensive description regarding the application of a mixture of three nonliving classes of algae as a promising and inexpensive biosorbent for removing toxic nickel (Ni(II)) ions from the aqueous medium. Methods The biosorption process was tested by varying several experimental parameters such as pH (2-8), contaminant concentration (20-300 mg/L), biosorbent content (0.2-2 g/100 mL), and temperature (20-40 °C). In addition, the competition effects of the presence of Pb(II), Cu(II), and Zn(II) ions on the Ni(II) removal efficiency was studied by varying their concentrations from 30 to 40 mg/L. ResultsThe microscopic analysis of algae demonstrated that the used biosorbent consisted mainly of Chrysophyta (80%), Chlorophyte (14%), and Cyanophyta (6%). Results demonstrated that these environmental parameters influenced the removal efficiency with a different degree and there was no stable effects rank at conditions under examination. FT-IR and SEM analysis revealed that the biosorbent surface consists of many strong and active groups of negative valences such as hydroxyl and carboxyl groups, thus exhibiting several morphological properties of interest. Further, it was found that the Temkin model best fitted the isotherm biosorption data. The kinetic study showed that the Ni(II) biosorption was rapid within first 20 min of reaction time, thereby following a pseudo-second-order model, which in turn demonstrated a chemisorption process of Ni(II) ions reaction with the biosorbent binding sites. Also, the thermodynamic study suggested that the biosorption process of Ni(II) onto algal biomass was a spontaneous and endothermic in nature. The maximum uptake of Ni(II) was 9.848 mg/g under optimized conditions and neutral environment. Conclusions Thus, this significant finding suggested a favorable and eco-friendly treatment mechanism for removal of Ni(II) ions from aqueous medium via biosorption onto the used mixture of nonliving algal biomass.

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Section: Biosorbent Characterizationmentioning

confidence: 99%

Adsorptive performance of a mixture of three nonliving algae classes for nickel remediation in synthesized wastewater

Mohammed

Najim

Al-Musawi

et al. 2019

J Environ Health Sci Engineer

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“…The peak at 1746 cm −1 in the MOS spectrum shows the carbonyl (C=O) stretching vibration of the carboxyl groups of lignin in the MO [10]. The broad peak in spectra at 3313.1 cm −1 is indicative of strong O-H (Hbonded) stretching [11]. As can be observed from Fig.…”

Section: Batch Adsorption Experimental Proceduresmentioning

confidence: 74%

“…------- (11) From the magnitude of E, the kind of biosorption mechanism can be defined as follows: The magnitude of E between 8 and 16 kJ/mol corresponds to a chemical ion exchange process. The magnitude of E < 8 kJ/mol corresponds to a physical bio-sorption process.…”

Section: Dubinin-radushkevich (D-r) Isothermmentioning

confidence: 99%

THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS

Swelam

Sherif

Ibrahim

2018

Al-Azhar Bulletin of Science

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This work demonstrates the potential of Moringa oleifera seeds powder as an adsorbent for the removal of heavy metals from wastewater. The moringa oleifera seeds powder is characterized as an adsorbent for the removal of heavy metals from wastewater using FTIR, XRD, pH pzc , SEM and BET techniques. Several processing parameters such as; contact time, adsorbent dose, initial lead ion concentrations, pH, and temperature are optimized. The equilibrium data for bio-sorption are analyzed by using Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models to define the best correlation for lead ions. Among the four isotherm models, both Temkin and Freundlich models best describe the experimental data for Pb(II).The adsorption of the metal ions, Pb (II) is well defined by the pseudo-second order model (R 2 > 0.99). The interaction of the cationic species with the MOS powder is predominately via chemisorption rather than physisorption. The thermodynamic parameters such as ΔS, ΔH and ΔG are also determined.

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“…PFO models have been used in investigations on the removal of copper (II) from water and effluent from the copper plating industry by adsorption onto peanut shell carbon, among other things [56], the use of spent black tea for the removal of nitrobenzene from aqueous media [57], carbon beads-Caalginate-activated for the removal of patulin from apple juice [58], adsorption of the reactive red 141 dye using sesame waste [59], adsorption kinetics of Acid Red on activated carbon from acrylic fibrous waste [60] an sorption of basic dyes onto water hyacinth roots [61].…”

Section: Resultsmentioning

confidence: 99%

Kinetic Analysis of the Adsorption of Chromium onto Calcium Alginate Nanoparticles

Dan-Iya¹,

Yahuza²,

Sabó

2021

Bull Environ Sci Sust Manage

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The widespread use of chromium in industrial applications such as leather tanning, metallurgy, electroplating, and refractory materials has resulted in it being one of the most harmful trace elements to be introduced into surface and ground waters. The sorption isotherm of chromium sorption onto calcium alginate nanoparticles were analyzed using three models—pseudo-1st, pseudo-2nd and Elovich, and fitted using non-linear regression. The Elovich model was the poorest in fitting the curve based on visual observation followed by the pseudo-1st order. Statistical analysis based on root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), Bayesian Information Criterion (BIC) and Hannan–Quinn information criterion (HQC) that showed that the pseudo-1ST order model is the best model. Kinetic analysis using the pseudo-1st order model at 400 mg/L 4-BDE gave a value of equilibrium sorption capacity qe of 31.89 mg g-1 (95% confidence interval from 30.37 to 33.42) and a value of the pseudo-1st-order rate constant, k1 of 0.22 (95% confidence interval from 0.019 to 0.025). Further analysis is needed to provide proof for the chemisorption mechanism usually tied to this kinetic.

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Efficacy of spent black tea for the removal of nitrobenzene from aqueous media

Cited by 15 publications

References 48 publications

Adsorptive performance of a mixture of three nonliving algae classes for nickel remediation in synthesized wastewater

Adsorptive performance of a mixture of three nonliving algae classes for nickel remediation in synthesized wastewater

THE ADSORPTION KINETICS AND MODELING FOR Pb(II) REMOVAL FROM SYNTHETIC AND REAL WASTEWATER BY MORINGA OLEIFERA SEEDS

Kinetic Analysis of the Adsorption of Chromium onto Calcium Alginate Nanoparticles

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