Carboxylated Cellulose Silica Hybrid Beads for Efficient Dye Removal

Authors

  • Qianqian Wang State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology; Biofuels Institute, Jiangsu University
  • Simeng Liu Biofuels Institute, Jiangsu University
  • Honglei Chen State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology
  • Jun Liu Biofuels Institute, Jiangsu University
  • Huan Liu Biofuels Institute, Jiangsu University
  • Qianqian Zhu Biofuels Institute, Jiangsu University; State Key Laboratory of Molecular Engineering of Polymers, Fudan University

Keywords:

Cellulose silica hybrid beads, Dye adsorption, Recycling performance, Cellulose

Abstract

Highly efficient and environmentally friendly carboxylated cellulose silica hybrid adsorbents were prepared by combining the advantages of cellulose and silica. The surface property and chemical composition of produced cellulose silica hybrid adsorbents were extensively characterized via different techniques. The results indicated that silica particles were densely deposited on the surface of composite adsorbents. Because of their porous structure and large specific surface area, the carboxylated cellulose silica hybrid adsorbents demonstrated a high capacity of methylene blue (MB) adsorption, exceeding 990 mg·g-1. This adsorption capacity was more than 45% higher than that of carboxylated cellulose adsorbent. The cellulose silica hybrid adsorbents were able to maintain an MB adsorption efficiency of up to 70% even after undergoing five cycles. This study developed cellulose silica hybrid adsorbents for wastewater treatments. High adsorption capacity and stability make them sustainable and cost-effective alternatives to traditional adsorbents.

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Published

2023-04-25 — Updated on 2023-04-25

Issue

Vol. 18 No. 2 (2023)

Section

Research Article or Brief Communication