Synthesis of carbon dots based on corn cobs as heavy metal ion sensors using the microwave method

Riski Intan Prasasti, Rihlatul Jannah, Annisa Nur Buana Wati, Kusumandari Kusumandari, Isnaeni Isnaeni

Abstract

Carbon dots (CDots) are nanomaterials that can be applied as a heavy metal ion sensor. CDotss ware synthesized from corncobs which are abundant and underutilized. This study aims to determine the effect of variations in the concentration of corncobs on optical properties of CDots and their application as  Fe3+ ion sensors. CDots were synthesized with variations of corncobs’ mass 5, 10, 15, and 20 g and variations in metal ion concentrations 10-7, 10-6, 10-5, 10-4, and 10-3 M. The success of CDots synthesis was indicated by luminescence green when exposed to UV light. UV-Vis characterization showed that the greater the concentration of CDots could cause a shift in the absorbance peak towards longer wavelengths and peaks at wavelengths of 290, 291, 295, 298, and 323 nm, respectively. Photoluminescence (PL) characterization showed CDots emission peaks at 511, 504, 503, and 495 nm. The greater the concentration of CDots can cause a shift in the emission peak towards a shorter wavelength and increase the intensity. The PL characterization can identify the presence of Fe3+ metal ions with a wavelength shift that indicates a change in the CDots structure. The synthesis of CDots from corncobs have great potential to be applied as sensors.

Keywords

CDots, corn cobs, metal, microwave.

Full Text:

PDF

References

Alighiri, D., Aryani, N.P., Ratnasari, F.D., Drastisianti, A. & Masturi, M., (2018). Produksi Biobriket dari Limbah Pertanian Jagung di Desa Sumberejo Demak. SNKPPM, 1(1), 399-404. Alimah, F.U. (2017). Sintesis nanopartikel karbon (C-Dot) dari air kelapa sebagai sensor fluoresens ion Fe3+. Skripsi. Fakultas MIPA Institut Pertanian Bogor, Bogor. Amri, K. & Marpongahtun, M. (2021). Analisa morfologi carbon dots (C-Dots) dari air tebu. Jurnal Kimia Saintek dan Pendidikan. 5 (1), 6-10. Aziz, R., Suswati, S. & Indrawati, A., (2015). Briket Limbah Jagung sebagai Sumber Energi Alternatif Ramah Lingkungan di Desa Simolap Kecamatan Tigabinanga Kabupaten Tanah Karo. Jurnal Abdimas, 19(2). Boobalan, T., Sethupathi, M., Sengottuvelan, N., Kumar, P., Balaji, P., Gulyás, B., Padmanabhan, P., Selvan, S.T., & Arun, A. (2020). Mushroom-derived carbon dots for toxic metal ion detection and as antibacterial and anticancer agents. ACS Applied Nano Materials. 3 (6), 5910-5919. Chen, B.B., Liu, M.L., Li, C.M., & Huang, C.Z. (2019). Fluorescent carbon Dot functionalization. Advances in Colloid and Interface Science. 270, 165-190. Fatimah, S., Isnaeni, I., & Tahir, D. (2017). Sintesis dan karakterisasi fotoluminisens carbon dots berbahan dasar organik dan limbah organik. POSITRON. 7 (2), 37-41. Feng, T., Zeng, Q., Lu, S., Yan, X., Liu, J., Tao, S., Yang, M., & Yang, B. (2018). Color-tunable carbon dots possessing solid-state emission for full-color light-emitting diodes applications. Acs Photonics. 5 (2), 502-510. Ghifari, A.D.A., Putra, W.P., & Isnaeni, I. (2017). Analisis fotoluminesensi karbon dot dari daun teh dan daun pepaya dengan teknik microwave. Prosiding Seminar Nasional Fisika. 30, Oktober 2017, Jakarta, Indonesia 1-8. Isnaeni, Herbani, Y.,& Suliyanti, M.M. (2018). Concentration effect on optical properties of carbon dots at room temperature. Journal of Luminescence. 198, 215-219. Ng, H.M., Lim, G.K., & Leo, C.P. (2021). Comparison between hydrothermal and microwave-assisted synthesis of carbon dots from biowaste and chemical for heavy metal detection: A review. Microchemical Journal. 165, 1-13. Nurfathiya, N. (2018). Sintesis Karbon Dot Berbahan Dasar Limbah Organik Sebagai Sensor Pendeteksi Ion Logam Berat. Skripsi. Fakultas Teknologi Industri. Institut Sepuluh Nopember, Surabaya. Prasetya, H.A. (2012). Pengaruh ukuran partikel arang ampas tebu terhadap karakteristik vulkanisasi kompon ban luar kendaraan bermotor roda dua. Jurnal Dinamika Penelitian Industri. 23 (2), 77-84. Putro, P. A. & Maddu, A. (2019). Sifat optik Carbon Dot (C-Dot) dari daun bambu hasil sintesis hijau berbantukan gelombang mikro. Wahana Fisika. 4 (1), 47-55. Putro, P.A., Roza, L., & Isnaeni. (2018). Karakterisasi sifat optik C-Dots dari kulit luar singkong menggunakan teknik microwave. Jurnal Teknologi Technoscientia. 11 (2), 128-136. Rahmayanti, H. D. (2015). Sintesis carbon nanodots sulfur (C-Dots sulfur) dengan metode microwave. Skripsi. Fakultas MIPA Universitas Negeri Semarang, Semarang. Salamba, W. A. (2018). Sintesis Carbon Dots (C-Dots) dari Bahan Gula Pasir dengan Teknik Microwave untuk Mendeteksi Logam Berat Besi (Fe3+). Skripsi. Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin, Makassar. Sjahriza, A., Herlambang, S., & Wati, I.F. (2018). modifikasi karakteristik kuat tarik pada komposit film poli (vinil pirolidon) dan karagenan melalui pembentukan komposit karbon nano dot. al-Kimiya: Jurnal Ilmu Kimia dan Terapan. 5 (2), 52-56. Soni, S. (2016). Luminescent carbon dots: Characteristics and applications. Top Master Nanoscience. 14, Februari 2016, Groningen, Belanda. 1-20. Utami, R.A., Astuti, A., & Muldarisnur, M. (2018). Pengaruh stabilisator terhadap ukuran, morfologi, dan fotoluminesensi nanopartikel seng oksida yang disintesis dengan metode sol-gel. Jurnal Fisika Unand. 7 (1), 39-44. Widodo, T.W., Asari, A., Ana, N., & Elita, R. (2007). Bio energi berbasis jagung dan pemanfaatan limbahnya. Balai Besar Pengembangan Mekanisasi Pertanian Serpong Badan Litbang Pertanian. 1, 1-13. Wungkana, I. (2013). Aktivitas antioksidan dan tabir surya fraksi fenolik dari limbah tongkol jagung (Zea mays L.). Pharmacon. 2 (4), 149-155. Zhang, L., Wang, Y., Liu, W., Ni, Y., & Hou, Q. (2019). Corncob residues as carbon quantum dots sources and their application in detection of metal ions. Industrial Crops and Products. 133, 18-25. Zhao, Y., Ouyang, H., Feng, S., Luo, Y., Shi, Q., Zhu, C., Chang, Y.C., Li, L., Du, D. & Yang, H., (2019). Rapid and selective detection of Fe (III) by using a smartphone-based device as a portable detector and hydroxyl functionalized metal-organic frameworks as the fluorescence probe. Analytica chimica acta, 1077, 160-166. Zhu, C., Zhai, J. & Dong, S., (2012). Bifunctional fluorescent carbon nanodots: green synthesis via soy milk and application as metal-free electrocatalysts for oxygen reduction. Chemical communications, 48(75), 9367-9369.

DOI: https://doi.org/10.20961/jphystheor-appl.v6i2.59347

Refbacks

  • There are currently no refbacks.