Adsorption behavior of Cu(II) onto titanate nanofibers prepared by alkali treatment

Li, Nian; Zhang, Lide; Chen, Yongzhou; Tian, Yue; Wang, Huimin

doi:10.1016/j.jhazmat.2011.02.031

Cited by 83 publications

(16 citation statements)

References 47 publications

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“…These results indicated that the isotherm shapes of the sorbent were favorable for the sorption of Cd(II) because of the positive values of R L within the range of 0-1. Furthermore, all the values of R L close to zero implied an irreversible sorption [31].…”

Section: Sorption Isothermsmentioning

confidence: 91%

Carboxymethyl cellulose fiber as a fast binding and biodegradable adsorbent of heavy metals

Wei

Kim

Song

et al. 2015

Journal of the Taiwan Institute of Chemical Engineers

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Section: Sorption Isothermsmentioning

confidence: 91%

Carboxymethyl cellulose fiber as a fast binding and biodegradable adsorbent of heavy metals

Wei

Kim

Song

et al. 2015

Journal of the Taiwan Institute of Chemical Engineers

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“…In order to understand the sorption process better, pseudo-first-order kinetic model was tested to predict the sorption data of As on Cal-Alg-Goe beads as a function of time (Gupta and Babu 2009;Li et al 2011) using the data in Fig. 6.…”

Section: Kineticsmentioning

confidence: 99%

Arsenic Removal from Groundwater by Goethite Impregnated Calcium Alginate Beads

Basu

Singhal

Pimple

et al. 2015

Water Air Soil Pollut

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In the present work, goethite (α-FeO(OH)) impregnated calcium alginate (Cal-Alg-Goe) beads were used to sorb the arsenic from groundwater without disturbing its physicochemical characteristics. Beads were formed by dropwise addition of homogenized mixer of goethite and 4 % sodium alginate solution in 0.2 M CaCl 2 solution. Charge, size, and morphology of sorbents were characterized by using various techniques. The results of batch sorption experiments suggest that Cal-Alg-Goe beads are very effective for removal of arsenic in the pH range 3.0 to 7.5, and sorption was more than 95 % in the concentration range of 10-10,000 ng mL −1 . Beads were successfully tested for groundwater samples collected from areas having elevated levels of arsenic. Equilibrium sorption follows Langmuir isotherm model, and the maximum arsenic uptake calculated was 30.44 mg g −1 . The sorption kinetics could be explained by pseudo-first-order model, and the time needed for equilibrium was 24 h.

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“…(2015) [1][2][3][4][5][6][7][8][9][10][11][12][13] www.deswater.com doi: 10.1080/19443994.2015.1072738 widely used methods [3][4][5]. The most common adsorbent materials are activated carbon [6], alumina silica [7], metal hydroxides [8], and biosorption materials [9].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Copper ions removal from aqueous solutions using acid-chitosan functionalized carbon nanotubes sheets

Tofighy

Mohammadi

2016

Desalination and Water Treatment

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A B S T R A C TCopper ions (Cu 2+ ) removal from aqueous solutions using carbon nanotubes (CNTs) sheets was performed. CNTs sheets were synthesized via chemical vapor deposition of cyclohexanol and ferrocene in nitrogen atmosphere at 750˚C, and functionalized with concentrated nitric acid and chitosan. The as-synthesized and functionalized CNTs sheets were used as adsorbents for copper ions removal from water. The results demonstrated that functionalization with concentrated nitric acid and chitosan improves copper ions adsorption capacity of CNTs sheets from 23.32 to 57.34 mg/g at initial copper ions concentration of 800 mg/l. Therefore, the acid-chitosan-functionalized CNTs sheets can be used as an effective adsorbent for copper ions removal from water and have a good potential application in the environmental protection. Langmuir and Freundlich isotherm models were used to describe the adsorption behavior of copper ions by CNTs sheets. Two kinetics models including the pseudo-first-order and the pseudo-second-order equations were applied to fit the experimental data.

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Adsorption behavior of Cu(II) onto titanate nanofibers prepared by alkali treatment

Cited by 83 publications

References 47 publications

Carboxymethyl cellulose fiber as a fast binding and biodegradable adsorbent of heavy metals

Carboxymethyl cellulose fiber as a fast binding and biodegradable adsorbent of heavy metals

Arsenic Removal from Groundwater by Goethite Impregnated Calcium Alginate Beads

Copper ions removal from aqueous solutions using acid-chitosan functionalized carbon nanotubes sheets

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