Article
Chemistry, Analytical
Hui Li, Jie Zhao, Shifan Zhao, Guofeng Cui
Summary: A novel three-electrode sensor was developed for simultaneous detection of Pb(II), Cd(II), and Zn(II) by depositing a bismuth film on a screen-printed gold working electrode. The sensor showed a wide linear range, low detection limits, good anti-interference ability, and stability. Such sensors are expected to be useful for portable heavy metal detection applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Dionysios Soulis, Varvara Pagkali, Christos Kokkinos, Anastasios Economou
Summary: The fabrication method of ink-drawn fluidic electrochemical paper-based analytical devices (ePADs) for the determination of trace Pb(II) and Cd(II) has been reported. The ePADs are easy to fabricate, cost-effective, and suitable for on-site determination of Pb(II) and Cd(II) in environmental and food samples.
Article
Chemistry, Analytical
Ning Liu, Guo Zhao, Gang Liu
Summary: This study introduces a new method to detect Cd(II) and Pb(II) using feature stripping currents, which shows better anti-interference capability and detection accuracy. Models established using SVR and the partial least square algorithms demonstrate superior detection performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Sandra Enn D. Bahinting, Analiza P. Rollon, Sergi Garcia-Segura, Vince Carlo C. Garcia, Benny Marie B. Ensano, Ralf Ruffel M. Abarca, Jurng-Jae Yee, Mark Daniel G. de Luna
Summary: This study utilized BF-UMEA for the detection of Pb(II) and Cd(II), showing its potential application in trace water quality control.
Article
Chemistry, Multidisciplinary
Minwoo Kim, Joohyung Park, Hyunjun Park, Wonjun Jo, Wonseok Lee, Jinsung Park
Summary: In this study, Nafion-blanketed bismuth nanoplates were developed for the ultrasensitive detection of heavy metals in water. The Nafion-blanketing method selectively adsorbs cadmium and lead ions. The ecofriendly bismuth nanoplates were synthesized using ultrasonic energy and used as electrochemical sensors due to their high affinity toward heavy metal ions. The Nafion-blanketed bismuth nanoplates exhibited outstanding sensing performance in real samples such as tap water and effluent, with detection limits of 0.376 nM for Cd2+ and 0.178 nM for Pb2+.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Analytical
Wen-Juan Wang, Xin-Yang Lu, Fen-Ying Kong, Heng-Ye Li, Zhong-Xia Wang, Wei Wang
Summary: In this study, rGO/Au-Bi nanocomposites were successfully synthesized and used for simultaneous electrochemical determination of Pb2+ and Cd2+. The results showed that under optimized conditions, the proposed electrode exhibited good linearity and low detection limits for Pb2+ and Cd2+. The electrode also demonstrated excellent resistance to interference, high stability, and good repeatability.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Reyhan Dincer, Sukriye Ulubay Karabiberoglu, Zekerya Dursun
Summary: This study proposes a dependable approach for the selective and sensitive identification of zinc, cadmium and lead in different sample matrices using an over-oxidized poly(xylenol blue) film glassy carbon electrode coated with bismuth (Bi/PXBov.ox/GCE). The best conditions for determining these elements were found to be a 0.1 mol L-1 acetate buffer solution as supporting electrolyte (pH 4.5), -1.5 V accumulation potential, and 180 s accumulation duration. Under these conditions, the detection limits of Zn(II), Cd(II) and Pb(II) were 3.20 μg L-1, 0.21 μg L-1 and 1.98 μg L-1, respectively. Moreover, this novel, cheap and easy-to-prepare Bi/PXBov.ox/GCE was successfully used for the analysis of Zn(II), Cd(II) and Pb(II) in lipstick samples, with consistent results compared to inductively coupled plasma mass spectrometry.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Laia L. Fernandez, Julio Bastos-Arrieta, Cristina Palet, Mireia Baeza
Summary: This study describes the implementation of customized graphite electrodes decorated with Hg-NPs for the electrochemical detection of Cd, Pb, and Cu. The results show improved responses towards these analytes compared to bare graphite electrodes. The analytical performance of the sensors was evaluated using square-wave anodic stripping voltammetry and showed good agreement with ICP-MS measurements.
Article
Chemistry, Analytical
Shi-Hua Chen, Zong-Yin Song, Xiang-Yu Xiao, Hong-Qi Huang, Yuan-Fan Yang, Pei-Hua Li, Meng Yang, Xing-Jiu Huang
Summary: Vacancy and doping engineering were used to improve the electrocatalytic ability of nanomaterials for detecting heavy metal ions. The P-doped material showed enhanced sensitivity and selectivity towards As(III), and the vacancies provided abundant electrons to form active centers.
ANALYTICAL CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Danny Valera, Lenys Fernandez, Gema Gonzalez, Hugo Romero, Omar Martinez, Patricio J. Espinoza-Montero
Summary: The study demonstrated that Ag-Hg and Ag-Bi Nys deposits were dispersed and embedded inside the booths of the Nf net, with detection limit slightly higher for the AgBiNysNf-GC electrode compared to the AgHgNysNf-GC modified electrode. Accuracy of measurements was verified through comparison with ICP-OES results, showing very low standard deviation and coefficients of variation.
Article
Environmental Sciences
K. Krishna Kumar, M. Devendiran, P. Senthil Kumar, S. Sriman Narayanan
Summary: The study focused on the development of a mercury-free electrode based on green chemistry synthesis of reduced graphene oxide (Q-rGO) for simultaneous detection of Pb (II) and Cd (II) ions.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Shou-lian Wei, Liang-jie Yan, Xiang-jin Huang, Jian-wen Li, Su Yao, Hua-sheng Zhang, Ai-zhen Xu
Summary: This study developed a simple, effective, and sensitive electrochemical sensor based on a glassy carbon electrode modified with carboxylated carbon nanosheets and poly(glutamic acid) for simultaneous detection of trace amounts of Cd(II) and Pb(II). The sensor showed good performance in terms of sensitivity, selectivity, and could be applied for detection of Cd(II) and Pb(II) in water and rice samples.
Article
Chemistry, Analytical
Ruihua Huang, Ke Zhang, Haowei Sun, Dafeng Zhang, Jian Zhu, Shuxing Zhou, Wenyan Li, Yongtao Li, Chunqiong Wang, Xiuxiu Jia, Thomas Wagberg, Guangzhi Hu
Summary: In this study, cetyltrimethylammonium bromide and zeolitic imidazolate framework-8 (ZIF-8) were assembled via chemical co-precipitation, and high-quality carbon-based metal-free nanomaterials were synthesized using heat treatment. The internal and morphological characteristics of hexagonal Star ZIF-8 were investigated. An electrochemical sensor with a good response to Cd(II) was prepared using Star ZIF-8 nanomaterial-modified electrodes. The sensitivity of the sensor was increased by five orders of magnitude.
ANALYTICA CHIMICA ACTA
(2022)
Article
Engineering, Electrical & Electronic
Nurul Hidayah Ramli, Noorhashimah Mohamad Nor, Nor Dyana Zakaria, Khairunisak Abdul Razak
Summary: In this work, a platinum nanodendrites (PtNDs)-modified indium-tin-oxide (ITO) electrode (PtNDs/ITO) is developed for detecting Pb(II) ions. The PtNDs are drop-cast on the ITO electrode with varying concentrations for optimizing the electrochemical surface area. A Nafion thin layer is coated on top of the PtNDs/ITO-modified electrode to improve stability. The optimized PtNDs concentration of 120 mg/L shows excellent electrochemical performance with high specificity, reproducibility, and repeatability for detecting Pb(II) ions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Analytical
Antonella de las M. Biasi, Eduardo A. Takara, Maria L. Scala-Benuzzi, Agustina M. Valverde, Nidia N. Gomez, German A. Messina
Summary: Currently, there is a demand for fast and sensitive methods to monitor metals in water due to their increasing presence in the environment. This study evaluated different polymeric nanocomposites for the simultaneous electrochemical determination of Cu, Cd, and Zn in water samples. Screen-printed carbon electrodes were modified with nanocomposites containing graphene, graphite oxide, and polymers like polyethyleneimide, gelatin, and chitosan. The modified electrodes showed excellent performance for detecting metal ions in water samples using square-wave anodic stripping voltammetry.
ANALYTICA CHIMICA ACTA
(2023)
Article
Polymer Science
Pengfei Jie, Jiarui Du, Wei Tan, Jiyu Tang, Feng Zhang, Fengyu Qu
Summary: The study investigates the impact of cross-linking degree on proton-conducting properties by preparing different Schiff-based networks with varying cross-linking degrees and incorporating acid carriers into composites for new proton-conducting hybrid membranes. Results show that the cross-linking degree significantly affects proton conductivity, with H2SO4-incorporated SNW-M displaying the highest proton conductivity among the samples.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Engineering, Chemical
Xiuli Li, Shuqi He, Liyuan Sang, Feng Zhang, Yu Song, Bin Zhai, Xiuying Wang
ADVANCED POWDER TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Xiuli Li, Feng Zhang, Bin Zhai, Xiuying Wang, Jun Zhao, Zhongyi Wang
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2020)
Article
Chemistry, Analytical
Cuiyuan Liang, Huiming Lin, Wei Guo, Xing Lu, Dexin Yu, Songjie Fan, Feng Zhang, Fengyu Qu
Summary: A novel ZIF/g-C3N4/RGO nanohybrid was created for the first time as an electrochemical sensor, exhibiting excellent electrocatalytic activity towards hydrazine with a low detection limit and high sensitivity. The detection concentration of hydrazine in actual samples was lower than the WHO limit and showed high reproducibility. The high sensing capability of ZIF/g-C3N4/RGO combines abundant surface-active sites, high conductivity, and 2D interfaces between the nanosheets, providing a promising avenue for improving sensing performance.
Article
Chemistry, Analytical
Ning Li, Feng Zhang, Wenying Sun, Lili Zhang, Xingguang Su
Summary: In this study, a sensitive fluorescence biosensor based on fluorescence resonance energy transfer (FRET) between MoS2 quantum dots (MQDs) and CoOOH nanoflakes was developed for the assay of ascorbic acid oxidase (AAO). Under optimal experimental conditions, the developed fluorescence method exhibited good linear ranges and low detection limits for AAO detection. The proposed biosensor showed high sensitivity and selectivity, and was successfully applied for AAO determination in human serum samples.
Article
Chemistry, Multidisciplinary
Xuan Bai, Feng Zhang, Yibo Wang, Bin Zhai, Yu Song, Xiuying Wang, Jun Zhao
Summary: Ni-based salts play an important role in the preparation of porous carbon materials, influencing their morphology, porous structure, and degree of graphitization; Anions also play a significant role in the formation of carbon materials; The electrochemical performance of porous carbons is affected by factors such as the ratio of mesopores to micropores and electron conductivity.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Analytical
Xing Lu, Songnan Li, Wei Guo, Feng Zhang, Fengyu Qu
Summary: The TiO2/TiCT-NUF heterojunctions exhibit high sensing activity for simultaneous detection of dopamine and uric acid, with good selectivity and reproducibility in urine and serum samples. The proposed heterojunctions show promising potential as an electrochemical sensor for the sole and simultaneous detection of DA and UA.
Article
Chemistry, Physical
Le Zhao, Qingzhu Yang, Wei Guo, Feng Zhang, Kai Yu, Chunyu Yang, Fengyu Qu
Summary: The newly developed Co2.19S4 nanodots utilize starvation therapy to enhance tumor photothermal therapy and chemodynamic therapy in a hypoxic microenvironment by capturing copper ions under near-infrared irradiation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Yuzhu Wang, Le Zhao, Feng Zhang, Kai Yu, Chunyu Yang, Jingjing Jia, Wei Guo, Jingxiang Zhao, Fengyu Qu
Summary: A highly efficient solar-driven water evaporation system was developed using Co-Sn alloy-deposited Teflon film and super-absorbent polymers, achieving high light-to-heat conversion efficiency and improved efficiency through optimized water pump design.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Cuiyuan Liang, Xin Wang, Dexin Yu, Wei Guo, Feng Zhang, Fengyu Qu
Summary: Research on hydrazine detection using the POMOF/CFG structure showed a broad linear range and low detection limit, with good anti-interference capability, stability, and feasibility. Acceptable relative recoveries were obtained in the detection of practical samples.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jinghua Di, Ying Lu, Wenwen Wang, Xiuying Wang, Chunling Yu, Jun Zhao, Feng Zhang, Shiping Gao
Summary: In this study, a g-C3N4 thin film with high photocatalytic performance, good recyclability, and cycle stability was successfully prepared. The presence of cyano groups improved the photocatalytic efficiency, leading to efficient degradation of dyes under visible light irradiation.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Energy & Fuels
Yibo Wang, Xuan Bai, Wenwen Wang, Ying Lu, Feng Zhang, Bin Zhai, Xiuying Wang, Yu Song
Summary: Porous carbons are promising electrode materials for electrical double layer capacitors due to their high surface area and conductivity. A ball milling-assisted method can be used to prepare porous carbons with controlled morphology and graphitization degree, with the amount of FeCl3 center dot 6H(2)O influencing the properties of the porous carbons.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Pengfei Jie, Xin Wang, Feng Zhang, Chen Wen, Lei Feng, Fengyu Qu, Xiaoqiang Liang
Summary: A series of proton-conductive COF membranes were fabricated in this study, showing high proton conductivity at medium and subzero temperatures. The enhancement of proton conductivity was achieved through multifaceted synergistic effects.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Spectroscopy
Haijun Cao, Jian Chen, Xiaohui Fu, Yanqing Xin, Xiaobin Qi, Erbin Shi, Zongcheng Ling
Summary: Petrological and mineralogical analyses of NWA 10720 indicate that this Martian nakhlite has experienced complex magmatic activity before eruption, with two-stage magmatism being evident. The presence of secondary mineral assemblages such as iddingsite-like veins and various Fe-oxide species suggests late-stage alteration dominated by oxidization and dehydration.
JOURNAL OF RAMAN SPECTROSCOPY
(2022)
Article
Geochemistry & Geophysics
Erbin Shi, Alian Wang, Huafang Li, Ryan Ogliore, Zongcheng Ling
Summary: This study characterized the chemical and structural properties of gamma-CaSO4 from the hyperarid regions on Earth and Mars, finding that the abnormally high stability of these minerals was due to chemical impurities filling their tunnels and blocking the entrance of water molecules. The findings suggest that gamma-CaSO4 with impurities may have igneous or evaporative origins.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2022)