TiO2/rGO: Synthesis and application to cadmium and lead simultaneous determination by stripping voltammetry
Vol. 131 No. 1C (2022), Original Article
Vol. 131 No. 1C (2022)

TiO2/rGO: Synthesis and application to cadmium and lead simultaneous determination by stripping voltammetry

Original Article
https://doi.org/10.26459/hueunijns.v131i1C.6882
Published 2022-09-30
Vu Ngoc Hoang
Tan Hiep High School, QL 80, Tan Hiep, Kien Giang, Vietnam
Vu Thien
Tan Hiep High School, QL 80, Tan Hiep, Kien Giang, Vietnam
Huynh Ngoc Thiet
Department of Education and Training Gia Lai, 56 Tran Hung Dao St., Pleiku, Gia Lai, Vietnam
Nguyen Mau Thanh*
Quang Binh University, 312 Ly Thuong Kiet St., Dong Hoi, Quang Binh, Vietnam
PDF (Vietnamese)

Keywords

reduced graphene oxide
titanium dioxide
cadmium
lead
stripping voltammetry graphen oxit dạng khử
titan dioxit
cadimi
chì
von-ampe hòa tan

How to Cite

1.
Vũ NH, Vũ T, Huỳnh NT, Nguyễn MT. TiO2/rGO: Synthesis and application to cadmium and lead simultaneous determination by stripping voltammetry. hueuni-jns [Internet]. 2022Sep.30 [cited 2024Dec.22];131(1C):139-46. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6882
ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver

Download Citation

Endnote/Zotero/Mendeley (RIS) BibTeX
Crossref
Scopus
Google Scholar
Europe PMC

Abstract

In this paper, graphite powder was used to produce graphene oxide (GO), which was then reduced by ascorbic acid to gain reduced graphene oxide (rGO) with the Hummer method. Nano titanium dioxide (TiO2) is physically and chemically stable and used in numerous environmental applications. Reduced graphene oxide was modified with TiO2. The obtained TiO2/rGO was characterized by using X-ray diffraction, scanning electron microscopy and nitrogen adsorption/desorption isotherms. The synthesized material was applied to modify a glassy carbon electrode for the simultaneous determination of cadmium and lead with differential pulse anodic stripping voltammetry (DP-ASV). The method yielded a high sensitivity (0.329 ± 0.005 and 0.346 ± 0.004 μA/ppb for CdII and PbII), low detection limit (3.17 ppb and 2.42 ppb for CdII and PbII) and a good linear correlation between Ip and the metal concentration in the range of 6–80 ppb for both metals (R2 ≥ 0.998).

https://doi.org/10.26459/hueunijns.v131i1C.6882
PDF (Vietnamese)

References

  1. Dixit R, Malaviya D, Pandiyan K, Singh UB, Sahu A, Shukla R, et al. Bioremediation of heavy metals from soil and aquatic environment: an overview of principles and criteria of fundamental processes. Sustainability. 2015;7(2):2189-2212.
  2. Cunningham PA. The use of bivalve molluscs in heavy metal pollution research. Marine pollution: functional responses. 1979:183-221.
  3. Akyıldırım O. A sensitive voltammetric sensor based on silver nanoparticles/carbon nitride nanotubes@ graphene quantum dots/a novel organic liquid: determination of triclosan in wastewater. Bulletin of Materials Science. 2020;43 (1):1-8.
  4. Thanh NM, Van Hop N, Luyen ND, Phong NH, Tam Toan TT. Simultaneous Determination of Zn(II), Cd(II), Pb(II), and Cu(II) Using Differential Pulse Anodic Stripping Voltammetry at a Bismuth Film-Modified Electrode. Advances in Materials Science and Engineering. 2019;2019:1826148.
  5. Evtushenko YM, Romashkin S, Davydov V. Synthesis and properties of TiO2-based nanomaterials. Theoretical Foundations of Chemical Engineering. 2011;45(5):731-748.
  6. Soldano C, Mahmood A, Dujardin E. Production, properties and potential of graphene. Carbon. 2010;48(8):2127-2150.
  7. Feng J, Ye Y, Xiao M, Wu G, Ke Y. Synthetic routes of the reduced graphene oxide. Chemical Papers. 2020;74(11):3767-3783.
  8. Rocha DP, Dornellas RM, Cardoso RM, Narciso LC, Silva MN, Nossol E, et al. Chemically versus electrochemically reduced graphene oxide: improved amperometric and voltammetric sensors of phenolic compounds on higher roughness surfaces. Sensors Actuators B: Chemical. 2018; 254:701-718.
  9. Gupta SM, Tripathi M. A review of TiO2 nanoparticles. Chinese science bulletin. 2011;56(16):1639-1657.
  10. Al-Qahtani KM, Ali MH, Al-Afify AG. Synthesis and use of TiO2@rGO nanocomposites in photocatalytic removal of chromium and lead ions from wastewater. Journal of Elementology. 2020;25(1): 315-322.
  11. Rouquerol J, Avnir D, Fairbridge C, Everett D, Haynes J, Pernicone N, et al. Recommendations for the characterization of porous solids (Technical Report). Pure applied chemistry. 1994;66(8):1739-1758.
  12. Štengl V, Králová D. Photoactivity of brookite–rutile TiO2 nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite. Materials Chemistry Physics. 2011;129(3):794-801.
  13. Hummers Jr WS, Offeman RE. Preparation of graphitic oxide. Journal of the american chemical society. 1958;80(6):1339.
  14. Wang P, Wang J, Wang X, Yu H, Yu J, Lei M, et al. One-step synthesis of easy-recycling TiO2-rGO nanocomposite photocatalysts with enhanced photocatalytic activity. Applied Catalysis B: Environmental. 2013;132:452-469,.
  15. Ma Y, Wang Y, Xie D, Gu Y, Zhu X, Zhang H, et al. Hierarchical MgFe-layered double hydroxide microsphere/graphene composite for simultaneous electrochemical determination of trace Pb (II) and Cd (II). Chemical Engineering Journal. 2018;347:953-962.
Creative Commons License

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

Copyright (c) 2022 Array