Sintesis dan Karakterisasi Fotoluminisens Carbon Dots Berbahan Dasar Organik dan Limbah Organik

Siti Fatimah, Isnaeni Isnaeni, Dahlang Tahir

Abstract


Bahan dan limbah organik dapat disintesis menjadi CDs dengan metode green synthesis berbasis microwave assisted. Bahan organik yang digunakan adalah sawi, kentang, biji jagung dan limbah jagung (kulit dan tongkol jagung). Karakterisasi fotoluminisens (PL) digunakan untuk menunjukkan sifat optik CDs. Hasil karakterisasi PL dari CDs berbahan dasar bahan dan limbah organik menunjukkan panjang gelombang yang relatif sama yaitu 500 nm. Perbedaan CDs bahan dan limbah organik yaitu pada intensitas pendaran CDs. CDs biji jagung memiliki intensitas pendaran yang tinggi dibandingkan CDs yang berasal dari bahan organik lainya yaitu 42 a.u.. Sedangkan untuk limbah jagung memiliki panjang gelombang dan intensitas yang relatif sama. Besarnya energi gap yang dihasilkan dari CDs dari bahan organik berada disekitaran 2,46 eV, dimana berada pada rentang energi gap CDs. Hal ini menunjukkan bahwa bahan dan limbah organik dapat disintesis menjadi CDs dengan efektif, efisien, ekonomis dan ramah lingkungan.


Keywords


Carbon dots, fotoluminisens, panjang gelombang, intensitas, energi gap.

Full Text:

PDF

References


Ben N. G. Giepmans, Stephen R. Adams, Mark H. Ellisman, and Roger Y. Tsien., The Fluorescent Toolbox for Assesing Protein Location and Function, Science, 312 (5771), 217-224, 2006.

Cao L, Wang X, Meziani MJ, Lu F, Wang H, Luo PG, Lin Y, Harruff BA, Veca LM, Murray D, Xie SY, Sun YP., Carbon Dots for Multiphoton Bioimaging, J. Am. Chem. Soc., 129 (37), 11318-11319, 2007.

Qi Wang, Xing Liu, Lichun Zhang, and Yi Li., Microwave-Assisted Synthesis of Carbon Nanodots through an Eggshell Membrane and Their Fluorescence Application, Analyst, 137, 5392-5397, 2012.

Gfroerer, Timothy H., Photoluminescence in Analysis of Surface and Interfaces, Encyclopedia of Analytical Chemistry, R. A Meyers, John Wiley & Sons Ltd, pp. 9209-9231, 2000.

X.M. Fan, J.S. Lian, Z.X. Guo, H.J. Lu., Microstructure and Photoluminescence Properties of ZnO Thin Flims Grown by PLD on Si (1 1 1) Substrates, Appl. Surf. Scie., 239, 176-181, 2005.

Sheila N. Baker, and Gary A. Baker., Luminescent Carbon Nanodots: Emergent Nanolights, Angew. Chem. Int. Ed, 49, 6726 – 6744, 2010.

Swagatika Sahu, Birendra Behera, Tapas K. Maiti, and Sasmita Mohapatra., Simple One-Step Synthesis of Highly Luminescent Carbon Dots Juice: Application as Excellent Bio-Imaging Agents, Chem. Commun., 48, 8835-8837, 2012.

Xiaoyun Qin, Wenbo Lu, Abdullah M. Asiri, Abdulrahman O. Al-Youbi, and Xuping Sun., Microwave-Assisted Rapid Green Synthesis of Photoluminescent Carbon Nanodots from Flour and Their Applications for Sensitive and Selective Detection of Mercury (II) Ions, Sensors and Actuators B: Chemical, 184, 156-162, 2013.

Fengyi Du, Miaomiao Zhang, Xiaofeng Li, Jianan Li, Xinyi Jiang, Zhang Li, Ye Hua, Genbao Shao, Jie Jin, Qixing Shao, Ming Zhou, Aihua Gong., Economical and Green Synthesis of Bagasse Derived Fluorescent Carbon Dots for Biomedical Applications, Nanotechnology, 25, 315702, 2014.

Changjun Liu, Peng Zhang, Feng Tian, Wenchen Li, Fan Li, and Wenguang Liu., One-Step Synthesis of Surface Passivated Carbon Nanodots by Microwave Assisted Pyrolysis for Enhanced Multicolor Photoluminescence and Bioimaging, J. Mater. Chem., 21, 13163-13167, 2011.

Haitao Li, Zhenhui Kang, Yang Liu, and Shuit-Tong Lee., Carbon Nanodots: Synthesis, Properties and Applications, J. Mater. Chem., 22, 24230-24253, 2012.




DOI: http://dx.doi.org/10.26418/positron.v7i2.22660

Refbacks

  • There are currently no refbacks.


Publisher:
Physics Department
Faculty of Mathematics and Natural Sciences
Universitas Tanjungpura

 
                                                                                

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.