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2026 Vol.58, Issue 1 Preview Page

Original Paper

Fabrication of Carboxymethyl Cellulose/Graphene Oxide Composite Beads and Evaluation of Their Adsorption Behavior for Efficient Removal of Methylene Blue from Aqueous Solutions

수용액 내 메틸렌블루 제거를 위한 카르복시메틸셀룰로오스/그래핀옥사이드 복합 비즈 제조 및 흡착 거동 평가

Jae-Young Kim1
,
Soon Wan Kweon2
,
Dae-Hyun Jang1
,
Hyoung Jin Kim3
,
Jae Ho Ryu4†
,
Tai Ju Lee3‡
김 재영1
,
권 순완2
,
장 대현1
,
김 형진3
,
류 재호4†
,
이 태주3‡
1Department of Forest Products & Biotechnology, College of Science and Technology, Kookmin University
2Department of Forest Products & Biotechnology, College of Science and Technology, Kookmin University
3Department of Forest Products & Biotechnology, College of Science and Technology, Kookmin University
4R&D Center, Greeneple
1국민대학교 과학기술대학 임산생명공학과, 학부생
2국민대학교 과학기술대학 임산생명공학과, 대학원생
3국민대학교 과학기술대학 임산생명공학과, 교수
4그리네플 기업부설연구소, CTO
†Corresponding Author: E-mail: jaeho.ryu@greeneple.com (Address: R&D Center, Greeneple, Naju, 58830, Republic of Korea)
‡Corresponding Author: E-mail: leetj@kookmin.ac.kr (Address: Department of Forest Products & Biotechnology, College of Science and Technology, Kookmin University, Seoul, 02707, Republic of Korea)
28 February 2026. pp. 54-68
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Abstract

Synthetic dyes in industrial effluents are major environmental contaminants due to their high toxicity and resistance to biodegradation, posing serious risks to aquatic ecosystems and human health. In this study, carboxymethyl cellulose (CMC)/graphene oxide (GO) composite beads were fabricated via ionic crosslinking in an Al3+ solution by freeze-drying, and their performance for removing cationic methylene blue (MB) was systematically evaluated. The physicochemical properties of the beads were characterized using rheometry, FT-IR spectroscopy, and thermogravimetric analysis (TGA). The influence of GO content on MB removal performance was assessed through adsorption isotherms and kinetic studies. All samples exhibited adsorption behaviors well described by the Freundlich isotherm (R2 > 0.95), indicating heterogeneous surface adsorption sites and partial multilayer adsorption. Among the composites, the bead containing 20 wt% GO (GO20) showed the highest affinity and adsorption capacity (KF = 18.02). The adsorption kinetics were well fitted by the pseudo-second-order model (R2 > 0.94), with a calculated equilibrium capacity of qe= 71.4 mg/g, confirming that GO20 provides an optimal balance of rheological stability, structural integrity, and adsorption efficiency. These results demonstrate that CMC/GO composite beads are promising and sustainable adsorbents for the purification of dye-contaminated wastewater.

Keywords
Carboxymethyl cellulose
graphene oxide
beads
dye removal
adsorption kinetics
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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 58
  • No :1
  • Pages :54-68
  • Received Date : 2025-12-02
  • Revised Date : 2026-01-28
  • Accepted Date : 2026-01-28
  • DOI :https://doi.org/10.7584/JKTAPPI.2026.2.58.1.54
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