Bead-type polystyrene/nano-CaCO3(PS/nCaCO3) composite: a high-performance adsorbent for the removal of interleukin-6

This research deals with a highly efficient, selective, low-cost, and recyclable adsorbent for the fast removal of lead (Pb)(II) ions from aqueous solutions, and an investigation of the related adsorption mechanisms. Three types of materials were prepared from pea peels waste using simple, energy-efficient and environmentally friendly treatment. Obtained adsorbents were characterized by elemental analysis, infrared spectroscopy, scanning electron microscopy, Boehm titration, and the main parameters were determined. The highest adsorption capacity was observed for the biochar prepared by heating of pea peels at 600°C for 30 minutes. The uptake of Pb(II) ions on pea peels-derived samples was examined as a function of pH, contact time, and initial Pb2+ concentration. Obtained results from adsorption experiments of Pb(II) ions on the biochar surface indicate high adsorption capacity, and the possibility of its preconcentration and selective removal in the presence of zinc(II) and cadmium(II) ions. This confirms a potential application of such materials in water remediation.

Download Full-text

Merging of memory effect and anion intercalation: MnOx-decorated MgAl-LDO as a high-performance nano-adsorbent for the removal of methyl orange

Dalton Transactions ◽

10.1039/c6dt00335d ◽

2016 ◽

Vol 45 (26) ◽

pp. 10530-10538 ◽

Cited By ~ 25

Author(s):

Hui Hua Peng ◽

Jie Chen ◽

De Yi Jiang ◽

Xiao Long Guo ◽

Hao Chen ◽

...

Keyword(s):

Methyl Orange ◽

Adsorption Capacity ◽

Memory Effect ◽

High Performance ◽

High Adsorption ◽

Double Oxide ◽

Prepared Material ◽

High Adsorption Capacity ◽

Nano Adsorbent

MnOx-decorated MgAl layered double oxide was fabricated via merging of memory effect and anion intercalation. The as-prepared material exhibited high adsorption capacity for methyl orange with outstanding recycling performance.

Download Full-text

Mercury Removal from Wastewater by Steamed Hoof Powder

Water Science & Technology ◽

10.2166/wst.1999.0340 ◽

1999 ◽

Vol 40 (7) ◽

pp. 109-116 ◽

Cited By ~ 4

Author(s):

M. H. Ansari ◽

A. M. Deshkar ◽

P. S. Kelkar ◽

D. M. Dharmadhikari ◽

M. Z. Hasan ◽

...

Keyword(s):

Heavy Metals ◽

Adsorption Capacity ◽

Adsorption Process ◽

Adsorption Equilibrium ◽

Light Metal ◽

Mercury Removal ◽

High Adsorption ◽

Surface Sites ◽

Ph Values ◽

High Adsorption Capacity

Steamed Hoof Powder (SHP), size < 53μ, was observed to have high adsorption capacity for Hg(II) with >95% removal from a solution containing 100 mg/L of Hg(II) with only 0.1% (W/V) concentration of SHP. The SHP has good settling properties and gives clear and odour free effluent. Studies indicate that pH values between 2 and 10 have no effect on the adsorption of Hg(II) on SHP. Light metal ions like Na+, K+, Ca2+ and Mg2+ up to concentrations of 500 mg/L and heavy metals like Cu2+, Zn2+, Cd2+, Co2+, Pb2+, Ni2+, Mn2+, Cr3+, Cr6+, Fe2+ and Fe3+ up to concentrations of 100 mg/L do not interfere with the adsorption process. Anions like sulphate, acetate and phosphate up to concentrations of 200 mg/L do not interfere. Chloride interferes in the adsorption process when Hg(II) concentration is above 9.7 mg/L. The adsorption equilibrium was established within two hours. Studies indicate that adsorption occurs on the surface sites of the adsorbent.

Download Full-text

Bimetallic Metal‐Organic Framework with High Adsorption Capacity toward Lithium Polysulfides for Lithium‐sulfur Batteries

Energy & Environmental Materials ◽

10.1002/eem2.12196 ◽

2021 ◽

Author(s):

Pengbiao Geng ◽

Meng Du ◽

Xiaotian Guo ◽

Huan Pang ◽

Ziqi Tian ◽

...

Keyword(s):

Adsorption Capacity ◽

Metal Organic Framework ◽

High Adsorption ◽

Lithium Sulfur Batteries ◽

Metal Organic ◽

High Adsorption Capacity ◽

Lithium Sulfur ◽

Organic Framework

Download Full-text

One-pot synthesis of hematite-alumina hollow sphere composite by ultrasonic spray pyrolysis technique with high adsorption capacity toward PAHs

Advanced Powder Technology ◽

10.1016/j.apt.2021.02.015 ◽

2021 ◽

Vol 32 (4) ◽

pp. 1060-1069

Author(s):

Hossein Vojoudi ◽

Jahan B. Ghasemi ◽

Ahmadreza Hajihosseinloo ◽

Bahareh Bastan ◽

Alireza Badiei

Keyword(s):

Spray Pyrolysis ◽

Adsorption Capacity ◽

Hollow Sphere ◽

Spray Pyrolysis Technique ◽

Ultrasonic Spray Pyrolysis ◽

High Adsorption ◽

One Pot ◽

Ultrasonic Spray Pyrolysis Technique ◽

Ultrasonic Spray ◽

High Adsorption Capacity

Download Full-text

Effective Poly (Cyclotriphosphazene-Co-4,4′-Sulfonyldiphenol)@rGO Sheets for Tetracycline Adsorption: Fabrication, Characterization, Adsorption Kinetics and Thermodynamics

Nanomaterials ◽

10.3390/nano11061540 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1540

Author(s):

Muhammad Ahmad ◽

Tehseen Nawaz ◽

Mohammad Mujahid Alam ◽

Yasir Abbas ◽

Shafqat Ali ◽

...

Keyword(s):

Adsorption Capacity ◽

Surface Area ◽

High Surface ◽

High Surface Area ◽

High Adsorption ◽

Clean Environment ◽

Equilibrium Data ◽

Langmuir Isotherm Model ◽

High Adsorption Capacity ◽

Adsorption Equilibrium Data

The development of excellent drug adsorbents and clarifying the interaction mechanisms between adsorbents and adsorbates are greatly desired for a clean environment. Herein, we report that a reduced graphene oxide modified sheeted polyphosphazene (rGO/poly (cyclotriphosphazene-co-4,4′-sulfonyldiphenol)) defined as PZS on rGO was used to remove the tetracycline (TC) drug from an aqueous solution. Compared to PZS microspheres, the adsorption capacity of sheeted PZS@rGO exhibited a high adsorption capacity of 496 mg/g. The adsorption equilibrium data well obeyed the Langmuir isotherm model, and the kinetics isotherm was fitted to the pseudo-second-order model. Thermodynamic analysis showed that the adsorption of TC was an exothermic, spontaneous process. Furthermore, we highlighted the importance of the surface modification of PZS by the introduction of rGO, which tremendously increased the surface area necessary for high adsorption. Along with high surface area, electrostatic attractions, H-bonding, π-π stacking and Lewis acid-base interactions were involved in the high adsorption capacity of PZS@rGO. Furthermore, we also proposed the mechanism of TC adsorption via PZS@rGO.

Download Full-text