Adsorptive removal of dye in wastewater by metal ferrite-enabled graphene oxide nanocomposites
| Autor: | Mark Daniel G. de Luna, Cheng-Di Dong, Ralf Ruffel M. Abarca, Allen Rhay B. Bayantong, Dennis C. Ong, Yu Jen Shih |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Materials science Health Toxicology and Mutagenesis 0208 environmental biotechnology Oxide 02 engineering and technology 010501 environmental sciences Wastewater 01 natural sciences Ferric Compounds Nanocomposites Metal chemistry.chemical_compound symbols.namesake Adsorption Specific surface area Environmental Chemistry Coloring Agents 0105 earth and related environmental sciences Aqueous solution Nanocomposite Public Health Environmental and Occupational Health Langmuir adsorption model General Medicine General Chemistry Pollution 020801 environmental engineering Methylene Blue Kinetics chemistry Chemical engineering visual_art symbols visual_art.visual_art_medium Graphite Methylene blue Water Pollutants Chemical |
| Zdroj: | Chemosphere. 274 |
| ISSN: | 1879-1298 |
| Popis: | Dyes are hazardous compounds commonly found in industrial wastewaters. Efficient and inexpensive removal of dye molecules from the water matrix has been demonstrated by adsorption processes. Magnetic nano-adsorbents, such as metal ferrites, can be efficiently recovered from the reaction mixture after treating the pollutant. Herein, MFe2O4@GO (M = Cu, Co or Ni) was synthesized via solution combustion method for the removal of dye molecules from aqueous solutions. The characteristics of the MFe2O4@GO, including surface area and pore diameter, surface functional groups, and elemental composition, were examined. Methylene blue was used as representative dye pollutant. Batch adsorption results conformed to the Langmuir isotherm. Maximum adsorption capacities of the MFe2O4@GO (M = Cu, Co or Ni) were 25.81, 50.15 and 76.34 mg g−1, respectively. Kinetics of methylene blue adsorption fitted the pseudo-second-order model. Overall, NiFe2O4@GO exhibited the highest adsorbent performance among the graphene-metal ferrites investigated, primarily because of its high specific surface area and presence of mesopores. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect