| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 236093 | Powder Technology | 2014 | 7 Pages |
•W18O49 nanourchin shows excellent adsorption capacity for organic dyes.•Oxygen vacancies in W18O49 play an important role in the adsorption of organic dyes.•The adsorption kinetics is well described by the pseudo-second-order model.•The adsorption is controlled by both surface adsorption and intraparticle diffusion.
W18O49 nanourchins were synthesized via a solvothermal reaction of WCl6 in triethylene glycol. They possessed high specific surface area of 103.4 m2.g− 1 and exhibited excellent adsorption capacity for the removal of methylene blue and rhodamine B. The equilibrium adsorption capacity toward methylene blue and rhodamine B reached 150.3 and 81.78 mg.g− 1, respectively. Oxygen vacancies in W18O49 played an important role in the adsorption of organic pollutants. The adsorption kinetics of methylene blue and rhodamine B were both well described by the pseudo-second-order model. The adsorption was found to be controlled by both surface adsorption and intraparticle diffusion. Our product is expected to be a promising material for wastewater treatment.
Graphical abstractW18O49 nanourchins show excellent adsorption capacity for the removal of organic dyes.Figure optionsDownload full-size imageDownload as PowerPoint slide
