Grass-Like Structured Mesoporous Carbon as an Acid Red 119 Dye Adsorbent

Yuni Krisyuningsih Krisnandi, Tania Priantini, Faisal Muhammad, Rika Tri Yunarti, Indah Revita Saragi, Jarnuzi Gunlazuardi

Research output: Contribution to journalArticlepeer-review


Grass-like structured mesoporous carbon was prepared by the soft-template method using triblock copolymer Pluronic F127, affording an organic-organic composite structure between phloroglucinol and formaldehyde. Thermogravimetric analysis revealed that the as-synthesized mesoporous carbon is stable to 900 °C, and X-Ray Diffraction (XRD) analysis confirmed the presence of carbon material structures at 2θ values of 22.020° and 42.420°. A hysteresis loop at relative partial pressures (P/Po) between 0.45 and 0.85 was observed in the N2 adsorption isotherm, indicating that the solid material exhibits mesoporous characteristics, with a homogeneous pore size distribution of 8.863 nm. Scanning Electron Microscope (SEM) images revealed that the bulk carbon surface exhibits a uniform grass-like structure. Furthermore, the as-synthesized mesoporous carbon was investigated for the adsorption of a diazo dye Acid Red 119, and it exhibited an adsorption capacity of 217.7389 mg/g; this capacity is 1.53 times greater than that of commercial activated carbon. Therefore, this mesoporous carbon is a potential adsorbent for the treatment of synthetic coloring waste.

Original languageEnglish
Pages (from-to)179-186
Number of pages8
JournalMakara Journal of Science
Issue number4
Publication statusPublished - Dec 2019


  • adsorbent
  • adsorption
  • diazo dye Acid Red 119
  • grass-like structure
  • mesoporous carbon
  • soft-template method


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