The Effect of Amino-functionalization on Photoluminescence Properties of Sugarcane Bagasse-derived Carbon Quantum Dots

  • Muhammad Wahyu Nugraha Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
  • Nonni Soraya Sambudi Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
  • Laksmi Dewi Kasmiarno Department of Chemical Engineering, Universitas Pertamina, Simprug, Jakarta Selatan, 12220, Indonesia
  • Norashikin Ahmad Kamal Department of Civil Engineering, Universiti Teknologi MARA (UiTM) Shah Alam, Selangor, 40450, Malaysia
Keywords: Amino-functionalization, Carbon quantum dots, Quantum yield, Sugarcane bagasse, tunable

Abstract

In the present study, amino-functionalized carbon quantum dots (N-CQDs) were prepared from sugarcane bagasse using a simple one-pot hydrothermal method. Both ethylenedinitrilotetraacetic (EDTA) & ethylenediamine (EDA) were used as carbon and amino sources, respectively. The emerging utilization of natural carbon precursors is critically essential considering its low cost, eco-friendly, and unexploited by-products (e.g., sugarcane bagasse), which may have sustainable economic and strategic benefits. The as-prepared N-CQDs were characterized using High-Resolution Transmission Electron Microscope (HRTEM), Fourier Transform Infrared Spectroscopy (FTIR), UV-vis absorption spectroscopy, and photoluminescence spectroscopy. The influences of amine groups were investigated. The as-prepared N-CQDs photoluminescence intensity increased and quenched significantly with EDTA and EDA amino-functionalization, respectively, with the highest quantum yield at 21.21%, 2.4 times higher than non-functionalized CQDs. Furthermore, the amino-functional groups can alter the CQDs structure and particle size ranging from 4.197±1.058 nm to 9.704±1.428 nm. Hence, the N-CQDs produced exhibit highly tunable photoluminescence and particle size potentially applicable in diverse applications.

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Published
2021-06-30
How to Cite
Nugraha, M. W., Sambudi, N. S., Kasmiarno, L. D., & Kamal, N. A. (2021). The Effect of Amino-functionalization on Photoluminescence Properties of Sugarcane Bagasse-derived Carbon Quantum Dots. ASEAN Journal of Chemical Engineering, 21(1), 62-72. Retrieved from https://jurnal.ugm.ac.id/v3/AJChE/article/view/9153
Section
Articles