Journal ArticleDOI
Sensitive and interference-free electrochemical determination of Pb(II) in wastewater using porous Ce-Zr oxide nanospheres
Pei-Hua Li,Pei-Hua Li,Yi-Xiang Li,Yi-Xiang Li,Shi-Hua Chen,Shi-Hua Chen,Shan-Shan Li,Shan-Shan Li,Min Jiang,Min Jiang,Zheng Guo,Jinhuai Liu,Xing-Jiu Huang,Xing-Jiu Huang,Meng Yang,Meng Yang +15 more
TLDR
In this paper, a novel sensor interface was designed by using porous Ce-Zr oxide nanospheres modified glassy carbon electrode (Ce Zr oxide/GCE), which has successfully realized high sensitivity and anti-interference detection of Pb(II).Abstract:
Herein, combined the synergetic effects and excellent adsorption of binary oxides, a novel sensor interface was designed by using porous Ce-Zr oxide nanospheres modified glassy carbon electrode (Ce-Zr oxide/GCE), which has successfully realized high sensitivity and anti-interference detection of Pb(II). The electrochemical determination of Pb(II) has been investigated by square wave anodic stripping voltammetry (SWASV) range from 0.02 to 0.5 μM, and a high sensitivity per unit area of 1666.02 μA μM−1 cm−2 was obtained with a limit of detection of 0.006 μM (3σ method). The enhancement of Pb(II) stripping signal is attributed to the excellent adsorption performance of porous Ce-Zr oxide nanospheres, which has been confirmed with X-ray photoelectron spectroscopy (XPS). Importantly, Ce-Zr oxide/GCE possesses highly anti-interference ability against the influence of Hg(II), Cd(II), Cu(II), and Zn(II) in the determination of Pb(II). Meanwhile, the remarkable stability and reproducibility were obtained. Finally, the accurate analysis of Pb(II) in wastewater collected from Wangtang sewage disposal plant was achieved. These results indicate that porous Ce-Zr oxide nanospheres are identified as promising modifier for the reliable and accurate determination of Pb(II).read more
Citations
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Recent Advances of Porous Graphene: Synthesis, Functionalization, and Electrochemical Applications.
TL;DR: Recent progress and achievements in synthesis and functionalization of various 2D holey graphene and 3D porous graphene are reviewed and electrochemical applications of porous graphene and its hybrids in the fields of electrochemical sensing, electrocatalysis, and Electrochemical energy storage are highlighted.
Journal ArticleDOI
Electrochemical spectral methods for trace detection of heavy metals: A review
Shi-Hua Chen,Shi-Hua Chen,Yi-Xiang Li,Yi-Xiang Li,Pei-Hua Li,Pei-Hua Li,Xiang-Yu Xiao,Xiang-Yu Xiao,Min Jiang,Min Jiang,Shan-Shan Li,Shan-Shan Li,Wen-Yi Zhou,Meng Yang,Xing-Jiu Huang,Xing-Jiu Huang,Wenqing Liu +16 more
TL;DR: In this article, a review of the recent advances of representative electrochemical spectral methods and their applications is presented, including electrochemical atomic absorption spectrometry (EC-AAS), electrochemical total reflection X-ray fluorescence, and electrochemical laser-induced breakdown spectroscopy (ECLIBS).
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Nanoremediation technologies for sustainable remediation of contaminated environments: Recent advances and challenges.
Adil Shafi Ganie,Sayfa Bano,Nishat Khan,Saima Sultana,Zubair Rehman,Mohammed M. Rahman,Suhail Sabir,Frederic Coulon,Mohammad Zain Khan +8 more
TL;DR: In this article, a comprehensive review article provides a critical outlook on the recent advances and future perspectives of nanoremediation technologies such as photocatalysis, nano-sensing etc., applied for environmental decontamination.
Journal ArticleDOI
Seignette salt induced defects in Zr-MOFs for boosted Pb(Ⅱ) adsorption: universal strategy and mechanism insight
TL;DR: In this paper , a defect engineering approach was introduced to modulate NH 2 -UiO-66, which presented a general strategy to fabricate defective Zr-MOFs for the boosted adsorption performance toward pollutants removal from wastewater.
Journal ArticleDOI
Sensitive and anti-interference stripping voltammetry analysis of Pb(II) in water using flower-like MoS2/rGO composite with ultra-thin nanosheets.
Yufeng Sun,Jian-Hua Sun,Jian Wang,Zong-Xin Pi,Lian-Chao Wang,Meng Yang,Xing-Jiu Huang,Xing-Jiu Huang +7 more
TL;DR: A sensitive and anti-interference electrochemical sensing interface for the analysis of Pb(II) was constructed by using MoS2/rGO nanocomposite modified glassy carbon electrode (MoS2 /rGO-GCE), and experiments indicated that the proposed method has good stability and reproducibility.
References
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Journal Article
Formation of hollow nanocrystals through the nanoscale kirkendall effect
Yadong Yin,Robert M. Rioux,Can K. Erdonmez,Steven Hughes,Gabor A. Somorjai,A. Paul Alivisatos +5 more
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Preparation and evaluation of a novel Fe-Mn binary oxide adsorbent for effective arsenite removal
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Arsenate adsorption on an Fe-Ce bimetal oxide adsorbent: Role of surface properties
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