Article
Engineering, Environmental
Chen Wang, Hans Christian Bruun Hansen, Mogens Larsen Andersen, Bjarne W. Strobel, Hui Ma, Nadia Dodge, Poul Erik Jensen, Changyong Lu, Peter E. Holm
Summary: This study investigates the oxidation of the antibiotic norfloxacin (NOR) using cyanobacterial nitrogen rich biochars (CBs) as catalysts for peroxydisulfate (PDS). The results show that CB950, pyrolyzed at 950 degrees C, is highly effective in degrading NOR, with a faster degradation rate compared to low pyrolysis temperature (PT) CBs. The high pyrolysis temperature CBs also exhibit full reactivity after repeated uses and high defluorination and mineralization rates. The study suggests that high pyrolysis temperature biochars from algal bloom biomass can be used as catalysts for organic contaminant oxidation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Jibran Iqbal, Noor S. Shah, Murtaza Sayed, Sajid Rauf, Zia Ul Haq Khan, Nabeel Khan Niazi, Kyriaki Polychronopoulou, Fares Howari, Faiza Rehman
Summary: Norfloxacin (NOR), an important antibiotic used for the treatment of various infections, is known to cause significant water pollution and environmental issues. In this study, a composite of biochar from Phoenix dactylifera roots biomass (PB) and mesoporous nano-zerovalent cerium (nZVCe) was used successfully to remove NOR from solutions. The composite showed improved catalytic efficiency and physiological characteristics compared to individual PB. The use of peroxydisulfate (PDS) further enhanced the removal of NOR, and scavengers inhibited NOR degradation. The study demonstrates the potential practical applications of the composite in treating NOR-contaminated water.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Jing Tong, Lu Chen, Jiao Cao, Zhaohui Yang, Weiping Xiong, Meiying Jia, Yinping Xiang, Haihao Peng
Summary: The study successfully improved the dispersibility and stability of catalysts by loading biochar onto MIL-53(Fe) derivatives, and showed high catalytic activity in degrading antibiotic wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zhihuang Fang, Shirong Zhao, Gang Xue, Xiaonuan Wang, Peizhe Sun, Yang Yu, Zilin Zhou, Qi Wang, Yajie Qian
Summary: N-modified sludge-derived biochar (N-SDBC) was prepared and used for the activation of peroxydisulfate (PDS) to degrade fluoroquinolone antibiotics (FQs). Seven commonly used FQs were effectively degraded by N-SDBC/PDS, and the dominant reactive species were identified as O-1(2), while SO4 center dot- and (OH)-O-center dot played minor roles. Graphite-N and Fe-0 on the surface of N-SDBC were identified as the main active sites for PDS activation. The application in surface water and wastewater samples demonstrated the efficiency of N-SDBC/PDS for FQs removal.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Mei-Ling Liu, Xiao-Jing He, Yi Li, Mei-Ling Zhao, Ying Zhuo
Summary: As a label-free and amplified electrochemiluminescence (ECL) sensing platform, this study developed a convenient method to detect multiple targets of hemin, glucose and thrombin (TB) using peroxydisulfate (S2O82-) solution. The target-induced bi-enzyme cascade catalysis reaction was employed to enhance the ECL response strongly, leading to the nanomolar, micromolar and femtomolar detection of hemin, glucose and TB, respectively.
Article
Chemistry, Analytical
Zhen Luo, Weiqing Xu, Zhichao Wu, Lei Jiao, Xin Luo, Mengzhen Xi, Rina Su, Liuyong Hu, Wenling Gu, Chengzhou Zhu
Summary: The Ru(bpy)(3)(2+)-tripropylamine ECL system is widely used in commercial bioanalysis, but the presence of amines in the biological environment causes unwanted anodic interference signals. To overcome this, a cathodic Ru(bpy)(3)(2+) ECL system is proposed, which utilizes the iron-nitrogen-carbon catalyst to activate the ECL signal. This innovative system shows great potential for practical applications, demonstrated by the successful development of an ECL biosensor for detecting alkaline phosphatase activity.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Ying Jing, Meiying Jia, Zhengyong Xu, Weiping Xiong, Zhaohui Yang, Haihao Peng, Jiao Cao, Yinping Xiang, Caijian Zhang
Summary: A three-dimensional porous aerogel catalyst with high degradation efficiency and stability was successfully synthesized for the degradation of organic pollutants in water, providing a new perspective for the design and development of PDS activation catalysts and three-dimensional functional materials.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Chunlu Ding, Zhen Liu, Shuying Pan, Chao Zhao, Zhiwei Wang, Baoyu Gao, Qian Li
Summary: Fe, S co-doped carbon-based catalysts (Fe@SCNs) were prepared by calcination of kappa-carrageenan hydrogel cross-linked by Fe3+. Fe@SCNs showed excellent performance for activation of peroxymonosulfate (PMS), allowing complete degradation of norfloxacin (NOR) within 40 min. The doping of S elements enhanced the electron transfer capability and generated more active sites, leading to the continuous formation of more reactive oxygen species (ROS).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Ping Yang, Jia-Bao Luo, Zi-Zhou Wang, Li-Lei Zhang, Jin Feng, Xiao-Bao Xie, Qing-Shan Shi, Xin-Guo Zhang
Summary: A series of 1,2,4-triazole-norfloxacin hybrids were designed, synthesized, and evaluated for their in vitro antibacterial activity against common pathogens. The newly synthesized compounds showed superior antibacterial activity to norfloxacin, with high toxicity towards bacterial cells but good biocompatibility. Molecular docking analysis suggested strong affinity of the compounds for bacterial topoisomerase IV.
BIOORGANIC CHEMISTRY
(2021)
Article
Electrochemistry
Ping Zhou, Wenxuan Fu, Lurong Ding, Yajuan Yan, Weiliang Guo, Bin Su
Summary: This study investigated the mechanism of cathodic electrochemiluminescence (ECL) generation by tris(2,2'-bipyridyl)ruthenium (Ru(bpy)(3)(2+)) and S2O82-. The use of bismuth microwire electrode and ECL microscopy allowed for a better understanding of the reaction. Results showed that the thickness of the ECL layer varied slightly with increasing S2O82- concentration, possibly due to the instability of Ru(bpy)(3)(+) in aqueous solutions.
ELECTROCHIMICA ACTA
(2023)
Article
Biochemistry & Molecular Biology
Saima Hanif, Zhiyong Dong, Peter John, Abubakar Abdussalam, Pan Hui, Dmytro Snizhko, Mohamed Ibrahim Halawa, Guobao Xu, Shaojun Dong
Summary: A regenerable electrochemiluminescence (ECL) sensor was constructed using Tris(4,7'-diphenyl-1,10-phenanthroline) ruthenium (II) dichloride [Ru(dpp)32+]. The sensor showed unique features compared to Ru(bpy)32+-modified electrodes and exhibited high sensitivity for the detection of S2O82- and oxalate.
BIOELECTROCHEMISTRY
(2023)
Article
Chemistry, Analytical
Alexander Kosov, Olga Grishenkova, Olga L. Semerikova, Vladimir A. Isaev, Yurii P. Zaikov
Summary: This study analyzed the regularities of formation and dissolution of independent new-phase nuclei on an indifferent electrode during a cyclic potential sweep, deriving equations for cyclic voltammograms and nuclei sizes for cases of simultaneous or progressive nucleation, diffusion-controlled growth, or kinetically controlled growth. Numerical simulation results showed that current extrema can be proportional to the scan rate raised to different powers, depending on the nucleation type and limiting growth stage. The experimental cyclic voltammograms for the electrodeposition/electrodissolution of silver nuclei on iridium in a KNO3-NaNO3-AgNO3 melt verified criteria for identification of phase formation mechanism.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Haidong Li, Han Zhou, Tian Zhang, Zhicheng Zhang, Guangyue Zhao, Chengyin Wang
Summary: In this study, a new ECL biosensor with high anti-interference capacity was developed using carbonized polydopamine nanotubes (C-DPANTs). The C-PDANTs enhanced both cathodic and anodic luminol ECL and significantly reduced interference caused by reactive oxygen species (ROS). By integrating cholesterol oxidase (ChOx) with C-PDANTs, the ECL biosensor demonstrated sensitive and selective detection of cholesterol.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Environmental
Wei Liu, Yingbo Dong, Dongsheng Yang, Conghui Zhang, Liping Zhang, Yanrong Lu, Qi Jin, Zhirui Liu, Junfei Liu, Hai Lin
Summary: A novel Mo2C-Fe3C nanomaterial was developed for efficient removal of norfloxacin (NOR) pollutant using peroxydisulfate (PDS) activation. The Mo/Fe-KFA-PDS system achieved over 99% removal of NOR within 5 minutes in a wide pH range of 3-11, with a long catalyst lifetime.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Energy & Fuels
Madan R. Biradar, Sidhanath Bhosale, Pranay P. Morajakar, Sheshanath Bhosale
Summary: This review focuses on the design, synthesis, and progress of rylene diimide dyes in electrochemical energy storage, along with their potential and impact in different types of batteries and supercapacitors.
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)