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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Bolan, Nanthi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Material-based generation, storage, and utilisation of hydrogencitations
- 2023nZVI-Based Nanomaterials Used for Phosphate Removal from Aquatic Systemscitations
- 2023Silver contamination and its toxicity and risk management in terrestrial and aquatic ecosystemscitations
- 2022Biochar compositescitations
- 2022Nanoporous materials for pesticide formulation and delivery in the agricultural sectorcitations
- 2021Efficient and selective removal of SeVI and AsV mixed contaminants from aqueous media by montmorillonite-nanoscale zero valent iron nanocompositecitations
- 2019New Extracellular Polymeric Substance Producing Enteric Bacterium from Earthworm, Metaphire posthumacitations
- 2018Trace element dynamics of biosolids-derived microbeadscitations
- 2016Sulfur crosslinks from thermal degradation of chitosan dithiocarbamate derivatives and thermodynamic study for sorption of copper and cadmium from aqueous systemcitations
- 2015Peningkatan jerapan Zn(II) dan Pb(II) daripada sisa air dengan manik kitosan tertiol
- 2014Remediation of heavy metal(loid)s contaminated soils - To mobilize or to immobilize?citations
Places of action
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article
Peningkatan jerapan Zn(II) dan Pb(II) daripada sisa air dengan manik kitosan tertiol
Abstract
<p>Chitosan beads (E) was first prepared by phase inversion of chitosan acetate solutions. Thiolated chitosan beads (ETB) was synthesised by soaking E in a mixture of ethanol and carbon disulfide for 7 days and then rinsed thoroughly with water and ethanol. Sulfur content of ETB is 7.88 %. The thiolation process has increased the Brunauer-Emmett-Teller (BET) surface area of E beads from 39.5 m<sup>2</sup>/g to 46.3 m<sup>2</sup> /g. ETB is categorised as macroporous material (pore aperture: 182 nm) with multiple and uniform porous layers. A new shoulder at 1594 cm <sup>-1</sup> was found in Fourier Transform infrared spectroscopy (FTIR) spectra of ETB, is assigned to thiourea moiety and was confirmed by X-ray photoelectron spectroscopy (XPS) spectra. The Pb(II) sorption capacity by ETB was higher than E beads at all sorbent dosage (except 5.0 g/L). At sorbent dosage of 5.0 g/L, sorption capacity of Zn(II) by ETB was enhanced by 3.2 times as compared to E beads. Sorption data fitted well to linearised Freundlich isotherm model and Ho’s pseudo second order kinetic model. The higher K<sub>F</sub> value of ETB than E indicated greater sorption capacity. The increase in Zn(II) and Pb(II) sorption capacities were attributed to enhanced chemisorption with thiol group in ETB beads.</p>