Details

Autor(en) / Beteiligte

• Tambat, Sneha N.
• Ahirrao, Dinesh J.
• Pandit, Aniruddha B.
• Jha, Neetu
• Sontakke, Sharad M.

Titel

Hydrothermally synthesized N2-UiO-66 for enhanced and selective adsorption of cationic dyes

Ist Teil von

• Environmental technology & innovation, 2020-08, Vol.19, p.101021, Article 101021

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this work, synthesis of UiO-66 and N2-UiO-66 metal–organic frameworks was carried out by using hydrothermal method. The synthesized materials were characterized by X-ray diffractometer, scanning electron microscope and Brunauer–Emmett–Teller (BET) surface area analyser. As an application, the synthesized materials were tested for adsorptive removal of four different dyes, namely, red 2B, basic blue, acid green and methyl orange. From the batch adsorption data, selective adsorption towards anionic dyes was observed with UiO-66. While, using N2-UiO-66, selective adsorption towards cationic dyes was observed. The experimental data was fitted with Langmuir and Freundlich adsorption isotherm models. The kinetics of adsorption was studied using pseudo-first order, pseudo-second order model, Elovich model and intraparticle diffusion model. [Display omitted] •Selective adsorption towards anionic dyes was observed on UiO-66.•Exceptionally high and selective adsorption of cationic dyes was observed on N2-UiO-66.•Batch adsorption data followed pseudo-second order kinetics.•Chemisorption of the dye molecules on the MOF was observed as an underlying mechanism.