Single and binary adsorption of heavy metal ions from aqueous solutions using sugarcane cellulose-based adsorbent

Wang, Futao; Pan, Yuanfeng; Cai, Pingxiong; Guo, Tianxiang; Xiao, Huining

doi:10.1016/j.biortech.2017.05.162

Cited by 289 publications

(90 citation statements)

References 35 publications

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“…For example, exposure and intake of Cd 2+ initiates serious damage to bones and kidneys, causing diseases including "itai-itai disease," anemia, osteoporosis, and hypertension. According to the World Health Organization (WHO), the maximum allowable concentrations of Cu 2+ and Cd 2+ , two of the most common heavy metal ions in drinking water, are 1.5 mg/L and 0.005 mg/L, respectively (Wang et al 2017a). Effective removal of toxic heavy metal ions from aqua sources is important for the environment and public health protection (Aziz et al 2014;Hu et al 2017).…”

Section: Introductionmentioning

confidence: 99%

A Spherical Zwitterionic Cellulose Acetate/ Graphene Oxide Composite Adsorbent for Efficient Removal of Cu2+ and Cd2+ from Aqueous Solution

Huang

Shen

et al. 2018

BioResources

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A novel composite adsorbent was prepared by using cellulose acetate modified with zwitterion, for zwitterionic cellulose acetate (ZCA), then blended with graphene oxide (GO). The adsorbent was prepared by solgel method and used to remove Cu 2+ and Cd 2+ from aqueous solution. The morphologies, surface chemical structures, and crystallinity of the obtained adsorbents were characterized by field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), and X-ray diffractometer (XRD), respectively. N2 adsorptiondesorption measurements revealed that the surface area and pore volume were 45.3 m 2 g -1 and 0.249 cm 3 g -1 . For adsorption, effect of time, and pH, adsorbate concentration was investigated; different adsorption models were also evaluated. The results showed that the maximum adsorption capacity was 32.0 mg/g for Cu 2+ and 27.6 mg/g for Cd 2+ , observed at pH 5.5 and 298 K. Simultaneously, the adsorption isotherms were well-fitted to the Langmuir model, and kinetics study showed that the adsorption process was fitted well by the pseudo-second-order model. Further regeneration experiments revealed that the adsorption of ZCA/GO was about 90% of the initial saturation adsorption capacity after repeated use 5 times, indicating that they are promising absorbents for practical application in industry.

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Section: Introductionmentioning

confidence: 99%

A Spherical Zwitterionic Cellulose Acetate/ Graphene Oxide Composite Adsorbent for Efficient Removal of Cu2+ and Cd2+ from Aqueous Solution

Huang

Shen

et al. 2018

BioResources

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“…For studying the diffusion mechanism of metal adsorption, the intraparticle diffusion model eq. was also introduced:

q_{t} = k_{i} t^{1 / 2} + c

where k i (mg/g min 0.5 ) is the rate constant for intraparticle diffusion model and c is the intercept which represents the boundary layer resistance. The plots of q t versus t 0.5 can give a linear relationship, from which the parameters k i and c can be obtained.…”

Section: Resultsmentioning

confidence: 99%

Removal of copper ions from aqueous solutions by adsorption onto wheat straw cellulose‐based polymeric composites

Kong

et al. 2018

J of Applied Polymer Sci

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The wheat straw cellulose‐based hydrogels were synthesized by graft copolymerization followed by semi‐interpenetrating network technology. The prepared hydrogels were characterized through various methods including Fourier transform infrared spectra, scanning electron microscope, thermogravimetric analysis, and X‐ray photoelectron spectroscopy. Batch adsorption experiments were carried out to investigate the adsorption performances of hydrogels toward Cu(II) ions. The results suggested that the introduction of semi‐interpenetrating network polymers, sodium alginate and poly(vinyl alcohol), could greatly enhance the adsorption property of hydrogels. And the wheat straw cellulose‐g‐poly(potassium acrylate)/sodium alginate hydrogel showed a highest Cu(II) ions adsorption capacity of 130 mg/g. The equilibrium isotherm and adsorption kinetics were also studied. Besides, the mass transfer coefficients and the thermodynamics of Cu(II) ions adsorption were also probed. Finally, the X‐ray photoelectron spectroscopy analysis further demonstrated that the Cu(II) ions adsorption was mainly via complexation reaction of NH2 and O‐containing groups in hydrogels. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46680.

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“…Which indicate that the metal ions adsorption on the adsorbent affected the chemical bonds in biosorbent. The result suggested that the sorption behavior of the bioadsorbent was affected by ion-exchange and mainly governed by chemical adsorption 24 . …”

Section: Functional Characteristicsmentioning

confidence: 86%

“…The absorption band of -C-O was decreased due to the formation of complex between atom oxygen and Cu(II) 27 . Obvious changes in the FTIR spectra were found at the wave numbers of 3810, 3742 and 3280 which appeared after Cu(II) adsorption 24 . Which indicate that the metal ions adsorption on the adsorbent affected the chemical bonds in biosorbent.…”

Section: Functional Characteristicsmentioning

confidence: 95%

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Adsorption of Cu(II) Ion onto Activated Eupatorium Adenophorum and Acer Oblongum: Thermodynamic, Kinetic and Equilibrium Studies

2018

Chem Sci Trans

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Abstract:The performance of activated Eupatorium adenophorum (AEA) and activated Acer oblongum (AAO) biomass for removal of Cu(II) ion from aqueous solution was investigated. Adsorption was carried out by batch operation and different parameters applied were pH, contact time, temperature, adsorbent dose and initial metal ion concentration. The maximum adsorption for Cu(II) ions was found at pH 5.0. The equilibrium adsorption data were analyzed using Langmuir, Freundlich and Temkin isotherm models. The equilibrium data fitted well the Langmuir isotherm. The affinity of AEA is greater than AAO biomass. Kinetic studies were performed to understand the mechanistic steps of adsorption process. The rate kinetics for the adsorption of metal ions was best fitted with the pseudo-second-order kinetic model. The thermodynamic analysis indicated that the adsorption of Cu(II) metal ions onto AEA and AAO biomass was an exothermic process (∆H 0 <0) and results in higher adsorption capacities at lower temperatures. The adsorption of Cu(II) metal ions onto AEA was more exothermic and spontaneous than AAO biosorbent. The negative value of ∆G 0 revealed that the adsorption was spontaneous. The feasibility of the process is evident from the positive value of ∆S 0 .

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Single and binary adsorption of heavy metal ions from aqueous solutions using sugarcane cellulose-based adsorbent

Cited by 289 publications

References 35 publications

A Spherical Zwitterionic Cellulose Acetate/ Graphene Oxide Composite Adsorbent for Efficient Removal of Cu2+ and Cd2+ from Aqueous Solution

A Spherical Zwitterionic Cellulose Acetate/ Graphene Oxide Composite Adsorbent for Efficient Removal of Cu2+ and Cd2+ from Aqueous Solution

Removal of copper ions from aqueous solutions by adsorption onto wheat straw cellulose‐based polymeric composites

Adsorption of Cu(II) Ion onto Activated Eupatorium Adenophorum and Acer Oblongum: Thermodynamic, Kinetic and Equilibrium Studies

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