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Recovery of gold nanoparticles from electronic solid waste: An experimental design and mathematical approach | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقاله 53، دوره 13، شماره 2، مهر 2022، صفحه 599-607 اصل مقاله (914.3 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2022.26224.3275 | ||
| نویسندگان | ||
| Alireza Fotovvat1؛ Alireza Feizbakhsh* 1؛ Amir Bagheri Garmarodi2 | ||
| 1Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Tehran, Iran. | ||
| 2Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran. | ||
| تاریخ دریافت: 20 بهمن 1400، تاریخ بازنگری: 04 اسفند 1400، تاریخ پذیرش: 14 اسفند 1400 | ||
| چکیده | ||
| Due to the growing consumption of gold metal and its various applications, gold recovery is very important. The element gold is an electron-bearing particle that can be used in a variety of applications such as medicine, engineering, and biology by changing its surface activity and particle size. The purpose of this study is to recover gold metal in the form of gold nanoparticles from electronic solid waste. For this purpose and to better investigate the effect of factors affecting the extraction of gold nanoparticles, the response method has been used in the experimental design. The innovation is to make gold nanoparticles with the smallest particle size with the help of reducing materials and in a cost-effective way while saving energy and also the highest recovery rate. In order to make gold nanoparticles, there are different methods such as physical, chemical and biological methods. Among these three methods, the use of the chemical method has been selected for this research. The material for extraction was royal acid, and parameters such as pH, the amount of royal acid and the temperature of the solution on the gold extraction efficiency were examined. The final nanoparticles were analyzed using XRD, FESEM, EDX and TEM analyzes. In order to determine the effectiveness of each variable and to determine which of the studied variables has the greatest impact on the gold recovery process, statistical methods were used. The variables of pH, solution temperature and the amount of Soltani acid had the greatest effect on the recovery of gold nanoparticles, respectively. According to the information obtained from Design-Expert software, at a temperature of 60 ° C and a pH of 8 and 200 ml of Soltani acid solution, the recovery rate of gold nanoparticles was 97.3\%. | ||
| کلیدواژه‌ها | ||
| Gold Nanoparticles؛ Recovery؛ Experimental Design؛ Solid Waste | ||
| مراجع | ||
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[1] R. Ahmad, N.K.N. Al-Shorgani, A.A. Hamid, W.M.W. Yusoff and F. Daud, Optimization of medium components using response surface methodology (RSM) for mycelium biomass and exopolysaccharide production by Lentinus squarrosulus, Adv. Biosci. Biotechnol. 2013 (2013). [2] I. Ben-Gal and S. Dror, Taguchi Method for Off-Line Quality Control, Wiley StatsRef, Statistics Reference Online, 2014. [3] R.G. Brereton, A short history of chemometrics: A personal view, J. Chemomet. 28 (2014), no. 10, 749–760. [4] K.M. Carley, N.Y. Kamneva and J. Reminga, Response surface methodology, Carnegie-Mellon Univ Pittsburgh Pa School of Computer Science, 2004. [5] M.A. Charitopoulou, K.G. Kalogiannis, A.A. Lappas and D.S. Achilias, Novel trends in the thermo-chemical recycling of plastics from WEEE containing brominated flame retardants, Envir. Sci. Poll. Res. 28 (2021), no. 42, 59190–59213. [6] H. Elomaa, S. Seisko, T. Junnila, T. Sirvi¨o, B.P. Wilson, J. Aromaa and M. Lundstr¨om, The effect of the redox potential of aqua regia and temperature on the Au, Cu, and Fe dissolution from WPCBs, Recycl. 2 (2017), no. 3, 14. [7] P. Goodman, Current and future uses of gold in electronics, Gold Bull. 35 (2002), no. 1, 21–26. [8] F. Habashi, Gold–An historical introduction, Gold Ore Processing. Elsevier, 2016. 1-20. [9] M. Khalil, E. Ismail and F. El-Magdoub, Biosynthesis of Au nanoparticles using olive leaf extract: 1st nano updates, Arab. J. Chem. 5 (2012), no 4, 431–437. [10] C.J. King, Separation processes, introduction, Ullmann’s Encyclopedia of Industrial Chemistry, 2000. [11] S. Krishnamurthy, A. Esterle, N.C. Sharma and S.V. Sahi, Yucca-derived synthesis of gold nanomaterial and their catalytic potential, Nanoscale Res. Lett. 9 (2014), no. 1, 1–9. [12] G. Oza, S. Pandey, A. Mewada, G. Kalita, M. Sharon, J. Phata, W. Ambernath and M. Sharon, Facile biosynthesis of gold nanoparticles exploiting optimum pH and temperature of fresh water algae Chlorella pyrenoidusa, Adv. Appl. Sci. Res. 3 (2012), no. 3, 1405–1412. [13] E.F. Roberts and K.M. Clarke, The colour characteristics of gold alloys, Gold Bull. 12 (1979), no. 1, 9–19. [14] E. Schoenberger, Why is gold valuable? Nature, social power and the value of things, Cult. Geog. 18 (2011), no. 1, 3–24. [15] S. Suresh and S. Sundaramoorthy, Green chemical engineering, CRC Press, Boca Raton, 2015. [16] A. Zucchiatti, A.C. Font, P.C.G. Neira, A. Perea, P.F. Esquivel, S.R. Llorens, J.L.R. Sil and A. Verde, Nuclear instruments and methods, Phys. Res. Sec. B: Beam Interactions with Materials and Atoms 332 (2014), 160–164. | ||
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