Mechanical Improvement of Biochar-Alginate Composite by Using Melamine Sponge as Support and Application to Cu(II) Removal

Youngsang Chun, Kyung Rae Kim, Hyeong Ryeol Kim, Soo Kweon Lee, Ju Hun Lee, Ja Hyun Lee, Chulhwan Park, Hah Young Yoo, Seung Wook Kim

Research output: Contribution to journalArticlepeer-review

Abstract

The development of biosorbents using carbon–neutral materials is expected to contribute to a sustainable environment in water purification. In this study, the biochar-alginate composite was selected as the core material of biosorbent and Cu(II) was set as the adsorption experimental model. In particular, in order to improve the insufficient mechanical strength of alginate, a melamine sponge (MS) was applied as a support to the biochar-alginate composite. As a result, the tensile strength was significantly improved about 4.3-fold compared to the alginate foam (without MS), and it can be manufactured in the shape required in the process. The Cu(II) adsorption capacity of the biosorbent was analyzed based on the adsorption equilibrium and kinetics. As a result, the pseudo-second-order model and the Langmuir isotherm model were most suitable, and the maximum adsorption capacity of Cu(II) was estimated to be 126.58 mg/g. In conclusion, the biochar-alginate composite on melamine sponge was an excellent material as a biosorbent for removing Cu(II) from wastewater.

Original languageEnglish
JournalJournal of Polymers and the Environment
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Alginate-based adsorbent
  • Biochar entrapment
  • Cu(II) removal
  • Melamine sponge

ASJC Scopus subject areas

  • Environmental Engineering
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Mechanical Improvement of Biochar-Alginate Composite by Using Melamine Sponge as Support and Application to Cu(II) Removal'. Together they form a unique fingerprint.

Cite this