Article
Chemistry, Analytical
Xilin Liao, Ting-Ting Li, Hai-Tao Ren, Zhiyong Mao, Xuefei Zhang, Jia-Horng Lin, Ching-Wen Lou
Summary: In this study, a simple and effective visible-light driven photoelectrochemical (PEC) aptasensor was designed using BiFeO3@TiO2 nanocomposites for accurate and rapid detection of microcystin-LR (MC-LR). The constructed PEC aptasensor showed promising potential application for its precise selective and ultrasensitive detection of MC-LR in practical analysis.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Liang Fan, Jinhui Jeanne Huang, Jianjun Liao
Summary: The competitive smartphone-based portable electrochemical aptamer sensing system offers portability, low cost, and fast response, meeting the demand for on-site detection of MC-LR.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Environmental Sciences
Mingming Zhan, Yu Hong, Zhi Fang, Daping Qiu
Summary: Developing heterostructure photocatalysts for removing Microcystin-LR (MC-LR) under visible light was significant for water quality and risk control. Bi2WO6/Reduced graphene oxide (RGO) nanocomposites were prepared and achieved high removal efficiency and stability in degrading MC-LR. The degradation of MC-LR involved active species such as holes, hydroxide radicals, and superoxide radicals, and the introduction of RGO prevented the recombination of photoelectrons and holes.
Article
Chemistry, Analytical
Jing Zhang, Zi Yang, Bingzhi Chai, Lu Gao, Jie Zhao, Xiaojian Xu
Summary: An ultrasensitive electrochemical aptasensor for microcystin-LR detection was developed using core-satellite gold nanopaticle/silver nanocluster nanoassemblies as electrochemical labels. The aptasensor showed a low detection limit and a wide linear range, with excellent selectivity, reproducibility, and stability.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Environmental
Tianxiang Wei, Yinghao Zhang, Huafeng Wang, Huiming Li, Ting Fang, Zhaoyin Wang, Zhihui Dai
Summary: In order to meet the high demand for accurate and sensitive analysis of microcystin-LR (MC-LR) in complex environmental water, a self-assembled electroactive MOF-magnetic dispersible aptasensor has been developed for ultrasensitive MC-LR detection. The aptasensor utilizes the analyte-induced unwinding of a hairpin DNA on the surface of a Zr-MOF electrochemical tag, allowing easy detection by dispersible magnetic nanoparticles. A highly sensitive self-assembled dispersible aptasensor for MC-LR determination in environmental water samples without preconcentration was constructed, capable of detecting MC-LR from 0.005 to 100 ng mL-1. The aptasensor was successfully used for MC-LR quantification in water samples from Lake Taihu, demonstrating its great potential for pollutant monitoring.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agriculture, Multidisciplinary
Gu Shi, Chong Yan, Junhua Chen
Summary: Researchers developed an ultrasensitive aptasensor for the detection of microcystin-LR based on the assembly of Y-shaped hairpins. The cyclic assembly reactions resulted in a high fluorescence signal, enabling the detection of microcystin-LR with a low limit of 0.2 pM.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Biophysics
Yuan Wang, Yuye Li, Chang Liu, Na Dong, Dong Liu, Tianyan You
Summary: A laser-induced graphene (LIG)-based electrochemical aptasensor was developed for sensitive on-site detection of microcystin-LR (MC-LR). The LIG electrode, prepared via thermal transfer, acted as a quasireference electrode and provided a large surface area for signal amplification. The aptasensor showed high analytical performance for MC-LR detection with a linear range of 1 x 10-2 - 1 x 105 pM and a detection limit of 3 x 10-3 pM, making it suitable for water sample analysis with comparable reliability and accuracy to the standard method. Additionally, a portable detection platform was constructed for on-site detection of MC-LR.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Analytical
Ruishuang Yuan, Lijun Ding, Fuheng You, Zuorui Wen, Qian Liu, Kun Wang
Summary: A novel MC-LR aptasensor based on BNG/ZnO was developed, showing sensitive and selective detection of microcystin-LR, with satisfactory results in actual water sample analysis.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Liang Fan, Rong Wu, Jinhui Jeanne Huang, P. Ravi Selvaganapathy
Summary: To ensure the safety of the natural ecosystem, it is critical to develop portable, easy-to-operate and environmentally friendly quantitative analytical electrodes for the determination of microcystin-LR (MC-LR) in environmental water. A simple, mask-free, and one-step method based on laser-induced graphene (LIG) technology is designed for the fabrication of (3D) graphene electrodes integrated with gold nanoparticles (AuNPs). The developed MC-LR aptasensor has a detection limit of 0.053 pM and a linear range from 0.1 pM to 10 nM, showing great promise as a low-cost, simple and portable approach for label-free detection MC-LR in environmental samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Environmental
Xia Wang, Shilin Yang, Peng Jin, Anzhong Peng, Xia Zhao, Kai Yang, Jieli He
Summary: This study developed a highly efficient method for degrading cyanotoxin MC-LR by constructing a Z-scheme ZnO-g-C3N4 heterojunction. The photocatalyst successfully removed 97% of MC-LR under visible light, showing higher degradation rate constants compared to other systems. This prospective method prevents harmful algal blooms effectively.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Lijun Ding, Jie Wei, Yu Qiu, Yuan Wang, Zuorui Wen, Jing Qian, Nan Hao, Caifeng Ding, Yaqi Li, Kun Wang
Summary: The MoTe2 NPs/RGO heterostructures demonstrate excellent photoelectric performance and show promise as visible light-responsive materials for PEC biosensors. The label-free PEC aptasensor based on this material has a wide linear range and relatively low detection limit, showcasing its potential in the field of photoelectric sensing.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Ceramics
Arshid Mir, Khushboo Iqbal, S. Rubab, M. A. Shah
Summary: This paper describes a novel one-step anodization synthesis of Fe-doped TiO2 nanotubes and analyzes the effect of doping concentration on the morphology, structure, and composition of the prepared samples. The results showed the formation of anatase phase with Fe incorporation in the TiO2 lattice. The absorption spectra showed a red shift and the photocurrent density of Fe-doped samples was significantly higher than that of the pristine TiO2 sample, with the best results obtained from a sample doped at a level of 0.5%.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Afshin Ebrahimi, Negar Jafari, Karim Ebrahimpour, Mahbobe Karimi, Sadegh Rostamnia, Ali Behnami, Reza Ghanbari, Amir Mohammadi, Behzad Rahimi, Ali Abdolahnejad
Summary: The novel B/T/N-Z nanocomposite effectively removed MC-LR from water, with contact time, catalyst dosage, and pH significantly impacting the removal efficiency. Increasing contact time, catalyst dosage, and acidic pH had positive effects on MC-LR removal.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Food Science & Technology
Majdi Benamara, Elvira Gomez, Ramzi Dhahri, Albert Serra
Summary: The study demonstrated that Al-doped ZnO nanoparticles, particularly those with 5 at.% Al content (A5ZO), showed enhanced degradation kinetics of microcystin-LR (MC-LR) and anatoxin-A. The photocatalyst concentrations between 0.5 and 1.0 g L-1 improved the photocatalytic degradation kinetics of both cyanotoxins. Additionally, the pH study revealed the importance of the chemical state of species in facilitating the interaction between cyanotoxins and photocatalysts.
Article
Chemistry, Physical
Mei-Hong Tong, Tian-Ming Wang, Shi-Wei Lin, Rui Chen, Xia Jiang, Yan-Xin Chen, Can-Zhong Lu
Summary: TiO2 is widely used as a photocatalyst for water splitting due to its high activity, low cost, abundance, safety, and stability. However, its further utilization is limited by its wide band gap and rapid recombination speed. In this study, ultra-thin carbon-doped TiO2 nanotube arrays were fabricated, which exhibited high photoelectrochemical activity and significantly narrowed band gaps and decreased charge resistance. The results suggest that ultra-thin carbon doping in TiO2 nanotube arrays can optimize photocatalysts for PEC water splitting.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)