Abstract
In this study, an insoluble nanosponge biopolymer composite was synthesized, using a combined process of amidation reaction, cross-linking polymerization, and sol-gel method to obtain a phosphorylated multiwalled carbon nanotube-cyclodextrin/silver-doped titania (pMWCNT-βCD/TiO2-Ag). This work mainly emphasized on the removal of lead (Pb2+) and cobalt (Co2+) metal ions from synthetic and real wastewater samples using the synthesized pMWCNT-βCD/TiO2-Ag as a biosorbent. The new material was characterized by Fourier transform infrared (FTIR) spectroscopy, zeta potential, Brunauer-Emmett-Teller (BET) method, and scanning electron microscopy (SEM). Adsorption studies for the model pollutants were performed in batch mode. The effect of the solution pH, adsorbent dosage and the presence of competiting ions were investigated. The isotherm, kinetic, thermodynamic, and regeneration studies were also undertaken. The ability of the new material to effectively remove Pb2+ and Co2+ from synthetic wastewater and mine effluent samples was tested. The maximum removal capacities achieved for the removal of Pb2+ and Co2+ from mine effluent sample were 35.86 and 7.812 mg/g, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 21752-21767 |
| Number of pages | 16 |
| Journal | Environmental Science and Pollution Research |
| Volume | 25 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 1 Aug 2018 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation
Keywords
- Adsorption isotherm
- Biopolymer
- Biosorbent
- Kinetic models
- Nanosponge composite
- Thermodynamic
ASJC Scopus subject areas
- Environmental Chemistry
- Pollution
- Health, Toxicology and Mutagenesis
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