• Effect of a pH-controlled co-precipitation process on rhodamine B adsorption of MnFe2O4 nanoparticles

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Metadata

Document Title

Effect of a pH-controlled co-precipitation process on rhodamine B adsorption of MnFe2O4 nanoparticles

Author

Lamdab U., Wetchakun K., Kangwansupamonkon W., Wetchakun N.

Name from Authors Collection

Lamdab U.

Scopus Author ID

56662216300

ORCID ID

NULL

|

Wetchakun K.

Scopus Author ID

26422716800

ORCID ID

NULL

|

Kangwansupamonkon W.

Scopus Author ID

10938922200

ORCID ID

0000-0002-3719-1301

|

Wetchakun N.

Scopus Author ID

15726502500

ORCID ID

NULL

Affiliations

Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Program of Physics, Faculty of Science, Ubon Ratchathani Rajabhat University, Ubon Ratchathani, 34000, Thailand; National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Paholyothin Road, Khlong Luang, Pathumthani, 12120, Thailand; AFRST, Royal Society of Thailand Sanam Sueapa, Dusit, Bangkok, 10300, Thailand; Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand

Type

Article

Source Title

RSC Advances

ISSN

20462069

Year

2018

Volume

8

Issue

12

Page

6709-6718

Open Access

Gold

Publisher

Royal Society of Chemistry

DOI

10.1039/c7ra13570j

Abstract

We investigated the effect of a pH-controlled co-precipitation process on the adsorption behavior of manganese ferrite (MnFe2O4) nanoparticles as well as their structural and magnetic properties. The pH of prepared MnFe2O4 nanoparticles is typically an important factor affecting the adsorption capacity of an adsorbent. In this study, MnFe2O4 nanoparticles were prepared using a co-precipitation method at four different pH values of 9.0, 9.5, 10.0, and 10.5. The adsorption behaviors on rhodamine B (RhB) by MnFe2O4 nanoparticles prepared at different pH values were investigated. It was found that, via a pH-controlled process, MnFe2O4 nanoparticles prepared at pH 10.5 showed the highest RhB removal efficiency. The results indicated that the large pore size and surface charge of MnFe2O4 nanoparticles improved the adsorption capacities for RhB. Kinetic data were fitted to a pseudo-second order kinetic model and revealed that equilibrium was reached within 60 min. The isotherm data showed that the Langmuir maximum adsorption capacity of the MnFe2O4 nanoparticles prepared at pH 10.5 for RhB was 9.30 mg g-1. © The Royal Society of Chemistry 2018.

Funding Sponsor

National Science and Technology Development Agency; Faculty of Science, Chiang Mai University

License

CC BY-NC

Rights

Author

Publication Source

Scopus

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