TY - JOUR
T1 - Ultrasensitive and Simultaneous Electrochemical Determination of Pb2+ and Cd2+ Based on Biomass Derived Lotus Root-Like Hierarchical Porous Carbon/Bismuth Composite
AU - Zhu, Xiaolei
AU - Liu, Bingchuan
AU - Chen, Sijing
AU - Wu, Longsheng
AU - Yang, Jiakuan
AU - Liang, Sha
AU - Xiao, Keke
AU - Hu, Jingping
AU - Hou, Huijie
N1 - Publisher Copyright:
© 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.
PY - 2020/1/5
Y1 - 2020/1/5
N2 - A green and effective strategy to prepare a novel lotus root-like three-dimensional (3D) bismuth/biomass derived activated carbon (Bi@BAC) composite was developed for simultaneous electrochemical sensing of Pb2+ and Cd2+. The BAC supports herein were prepared from naturally-abundant Platanus seeds chemically activation by KOH, with dense and uniform bismuth micro/nano-sized particles successfully anchored on the carbon substrate through microwave-assisted hydrothermal treatment and subsequent carbothermal reduction process. Simultaneous electrochemical detection of Pb2+ and Cd2+ using square wave anodic stripping voltammetry (SWASV) was performed with the novel composite modified carbon paste electrode (CPE). Under optimized experimental conditions, the Bi@BAC/CPE demonstrated good linear response for both two target metal ions in the concentration range of 0.5 to 50 μg L-1, with limits of detection (LOD, S/N = 3) of 0.13 and 0.08 μg L-1 for Pb2+ and Cd2+, respectively. Moreover, the modified electrode displayed high resistance to interference, long-term stability and good reproducibility. The Bi@BAC/CPE also demonstrated satisfactory recovery level for the detection of target metal ions in real water samples.
AB - A green and effective strategy to prepare a novel lotus root-like three-dimensional (3D) bismuth/biomass derived activated carbon (Bi@BAC) composite was developed for simultaneous electrochemical sensing of Pb2+ and Cd2+. The BAC supports herein were prepared from naturally-abundant Platanus seeds chemically activation by KOH, with dense and uniform bismuth micro/nano-sized particles successfully anchored on the carbon substrate through microwave-assisted hydrothermal treatment and subsequent carbothermal reduction process. Simultaneous electrochemical detection of Pb2+ and Cd2+ using square wave anodic stripping voltammetry (SWASV) was performed with the novel composite modified carbon paste electrode (CPE). Under optimized experimental conditions, the Bi@BAC/CPE demonstrated good linear response for both two target metal ions in the concentration range of 0.5 to 50 μg L-1, with limits of detection (LOD, S/N = 3) of 0.13 and 0.08 μg L-1 for Pb2+ and Cd2+, respectively. Moreover, the modified electrode displayed high resistance to interference, long-term stability and good reproducibility. The Bi@BAC/CPE also demonstrated satisfactory recovery level for the detection of target metal ions in real water samples.
UR - http://www.scopus.com/inward/record.url?scp=85084751625&partnerID=8YFLogxK
U2 - 10.1149/1945-7111/ab82f7
DO - 10.1149/1945-7111/ab82f7
M3 - 文章
AN - SCOPUS:85084751625
SN - 0013-4651
VL - 167
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 8
M1 - 087505
ER -
