@article{scholars15723, volume = {21}, journal = {ASEAN Journal of Chemical Engineering}, title = {The effect of amino-functionalization on photoluminescence properties of sugarcane bagasse-derived carbon quantum dots}, pages = {62--72}, doi = {10.22146/ajche.61234}, year = {2021}, note = {cited By 2}, number = {1}, publisher = {Gadjah Mada University}, issn = {16554418}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109846928&doi=10.22146\%2fajche.61234&partnerID=40&md5=0e4343eff999917ed0ad5699925a1a8d}, 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, was 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 from 4.197{\^A}{$\pm$}1.058 nm to 9.704{\^A}{$\pm$}1.428 nm. Which is, the N-CQDs produced exhibit highly tunable photoluminescence and particle size, which are potentially applicable in diverse applications. {\^A}{\copyright} 2021, Gadjah Mada University. All rights reserved.}, author = {Nugraha, M. W. and Sambudi, N. S. and Kasmiarno, L. D. and Kamal, N. A.} }