Adsorptive removal of cadmium(II) ions from liquid phase using acid modified carbon-based adsorbents

Ihsanullah, Ihsanullah; Al-Khaldi, Fahad Abdulaziz; Abusharkh, Basil; Khaled, Mazen; Atieh, Muataz Ali; Nasser, Mustafa S.; Laoui, Tahar; Saleh, Tawfik A.; Agarwal, Shilpi; Tyagi, Inderjeet; Gupta, Vinod Kumar

doi:10.1016/j.molliq.2015.01.033

Cited by 231 publications

(42 citation statements)

References 79 publications

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“…As can be seen in the Table 4, the coefficient (R 2 ) of Langmuir model is higher than those of Freundlich model, which indicated that the adsorption of Cd(II) and Cu(II) onto adsorbents (CC and CC-Fe) were mainly driven by the Langmuir surface adsorption mechanisms. These results were consistent with the previous studied adsorption mechanisms of Cd(II) and Cu(II) by chemical adsorption on MNPs-EDTA and M-CNTs Ihsanullah et al 2015). And the Q m of Cd(II) and Cu(II) sorption onto CC (108.70 mg g -1 and 141.18 mg g -1 , respectively) was a little bit higher than CC-Fe (105.26 mg g -1 and 131.19 mg g -1 , respectively).…”

Section: Sorption Isothermssupporting

confidence: 93%

Effective Removal of Copper (II) and Cadmium (II) by Adsorbent Prepared from Chitosan-modified Magnetic Biochar

Song¹,

Yang²,

Cao³

2016

JRST

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A novel chitosan-modified magnetic biochar composite (CC-Fe) was synthesized by embedding Fe 2 O 3 and assembling chitosan in two-step. The properties of CC-Fe were characterized systematically by elemental analysis, Brunauer-Emmett-Teller (BET) surface area, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and batch sorption processes. The prepared adsorbent composite was comprised of magnetic particulates of Fe 2 O 3 and multifunctional group, and thus exhibited high sorption capability to remove copper (II) or cadmium (II) from waste water. For both copper (II) and cadmium (II), CC-Fe demonstrated a higher sorption capability (98% and 97%) than the non-chitosan magnetic biochar (11% and 7%). The sorption experimental results showed that the composite is a potential sorbent to remove copper (II) and cadmium (II). Due to its excellent magnetic characteristic, the heavy metal-laden CC-Fe could be isolated again from treated solution and reused after the desorption treatment. The functional groups of CC-Fe made efforts to the removal of heavy metals.

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Section: Sorption Isothermssupporting

confidence: 93%

Effective Removal of Copper (II) and Cadmium (II) by Adsorbent Prepared from Chitosan-modified Magnetic Biochar

Song¹,

Yang²,

Cao³

2016

JRST

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“…Cd 2? is the predominant species at low pH range (3.5-5), but at higher pH values (pH [ 7) Cd(II) ions have a tendency to precipitate Cd(OH) 2 (Ihsanullah et al 2015). On the other hand, nickel is predominantly present in the pH range 2-3 as Ni 2?…”

Section: Effect Of Ph and Temperature For Single-metal Systemsmentioning

confidence: 99%

Removal of heavy metal ions from drinking water by alginate-immobilised Chlorella sorokiniana

Petrović

Simonič

2016

Int. J. Environ. Sci. Technol.

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“…SWCNTs have only a single layer of graphene, while MWCNTs are made up of multiple rolled layers of graphene. CNTs can be treated by acid, such as nitric acid and sulfuric acid, and potassium permanganate, to form oxidized CNTs [75][76][77][78]. Compared to CNTs, oxidized CNTs become polar and easy to disperse in water.…”

Section: Carbon Nanotube-based Nanoadsorbentsmentioning

confidence: 99%

Carbon nanotubes, graphene, and their derivatives for heavy metal removal

Guo

et al. 2017

Adv Compos Hybrid Mater

171

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Carbon nanoadsorbents have attracted tremendous interest for metal ion removal from wastewater due to their extraordinary aspect ratios, surface areas, porosities, and reactivities. However, challenges still exist as they suffer from subpar dispersion and recovery, tending to aggregate, and so on. Thus, significant research efforts focus on modification of these carbon nanomaterials to increase the dispersions and recoveries, while maintaining or even enhancing the desirable properties. This review aims to give an in-depth look at recent and impactful advances in metal ion adsorption applications involving these modified carbon nanostructures. Here, the advanced design and testing of modified carbon nanostructures for metal ion removal are emphasized with comprehensive examples, and various adsorption behaviors and mechanisms are discussed, which are hoped to help the development of more effective adsorbents for water treatment.

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Adsorptive removal of cadmium(II) ions from liquid phase using acid modified carbon-based adsorbents

Cited by 231 publications

References 79 publications

Effective Removal of Copper (II) and Cadmium (II) by Adsorbent Prepared from Chitosan-modified Magnetic Biochar

Effective Removal of Copper (II) and Cadmium (II) by Adsorbent Prepared from Chitosan-modified Magnetic Biochar

Removal of heavy metal ions from drinking water by alginate-immobilised Chlorella sorokiniana

Carbon nanotubes, graphene, and their derivatives for heavy metal removal

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