COLLOIDS AND SURFACES B-BIOINTERFACES
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2024
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IF 5.4
Xu Chang,Shi Xiaohui,Zhang Zhijia,Zhou Wenjun,Zhang Songsong,Wang Guojun,Wang Qiang,Ma Teng,Wang Lin,Wei Hao,Mu Minhao
The undesirable and inevitable adhesion of marine organisms on submerged surfaces has seriously affect the environment, economy and society, so emerging and promising strategies for antifouling are required. Here, the novel and environmental strategy of the antibacterial and antialgal materials was proposed for the application of the antifouling coating without releasing harmful substances. The environment-friendly antifouling agent , the capsaicin derivative N-(2,5-dihydroxy-4-acrylamide meth-ylbenzyl)acrylamide (PHABA), was modified to the molecular chain of the polyurethane . The best tensile strength was up to 23.5 MPa of PUP-25% and the elongation at break was 415% of PUP-25%. The excellent wear resistance (300 wear cycles) and chemical solution resistance (H 2 SO 4 , NaOH, and NaCl solutions) revealed the applicability of the coating. PHABA would migrate to the surface of the polyurethane coating with time and enhanced the antibacterial and antialgal properties of the coating. PUP-25% prevented more than 90% of bacterial and algal adhesion, indicating the potential application of the antifouling coating.
研究领域:
材料科学
·
海洋生物学
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环境科学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Meng Yang,Hao Guo,Lei Sun,Ning Wu,Mingyue Wang,Fan Yang,Tingting Zhang,Junye Zhang,Zhilan Pan,Wu Yang
In this present work, a carboxylated multi-walled carbon nanotubes (MWCNT-COOH) and covalent triazine framework (CTF-1) co-modified glassy carbon electrode (GCE) is prepared and used for simultaneous electrochemical detection of hydroquinone (HQ) and catechol (CC). Due to the synergistic effect between the high electrocatalytic activity and good conductivity of MWCNT-COOH and large surface area of CTF-1, the prepared modified electrode exhibits good selectivity and high sensitivity for the simultaneous determination of HQ and CC. In the neutral phosphate buffer, HQ and CC produce a pair of well-defined redox peaks on the MWCNT-COOH/CTF-1/GCE. The concentrations of CC and HQ show good linearity in the range of 2–280 μM and the detection limits of HQ and CC are 0.12 μM and 0.17 μM, respectively. The prepared electrochemical sensor can be employed to determine contents of HQ and CC in real samples.
研究领域:
分析化学
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环境科学
·
材料科学
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DOI
高影响因子
Sustainable Energy & Fuels
·
2024
·
IF 5
Yuting Wu,Keru Cao,Jun Yan,Yuheng Zhang,Biao Zhang,Yanan Wang,Yong Yang,Dacheng Zhou,Qi Wang,ChunXia Liu
Electrochemical detection techniques are unable to accurately distinguish isomers with similar structures and properties due to the poor stability and selectivity of some sensors and their susceptibility to environmental interference. Bimetallic synergistically synthesized MOF materials have various types of highly ordered pores and can be used as adsorbent materials and catalyst carriers. Therefore, a composite material was developed to prepare its derivative Cu/Bi@C using a bimetallic organic skeleton (Cu/Bi-MOF) as a precursor, inheriting the large number of active sites on the surface of the MOF and large surface area, while improving the electrochemical response signal. The morphology and structure of the synthesized Cu/Bi@C composites were tested and analyzed by XRD, SEM and other characterization methods, and the electrochemical response of the Cu/Bi@C nanocomposites was analyzed by using an electrochemical workstation. In this study, a simple and highly selective electrochemical method was developed for the simultaneous determination of catechol and catechol quinone. Differential pulse voltammetry (DPV) was used for the simultaneous detection of HQ and CC. The results showed that the Cu/Bi@C electrode was able to efficiently and highly selectively detect both isomers. The Cu/Bi@C electrode could detect HQ and CC in the range of 2–600 μM and 2–800 μM, respectively, under the detection environment of pH = 6.0. The detection limits were 0.08 μM and 0.11 μM (S/N = 3), respectively. The sensor was successfully applied to real samples and showed low detection limits, good recoveries, high selectivity, stability and reproducibility. This provides a new idea for electrochemical detection and is expected to be applied in several fields.
研究领域:
分析化学
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材料科学
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Shuai Liu,Hao Qu,Yu Mao,Lili Yao,Ling Yan,Baolei Dong,Lei Zheng
Tert -butyl hydroquinone (TBHQ) stand as one of the most widely used antioxidants in food and daily chemical products. Rapid and sensitive monitoring of TBHQ holds considerable importance in safeguarding human health due to its potential risks. In this study, we devised an alcogel-based colorimetric sensor enabling the portable and visual detection of TBHQ. The Ce-UiO-66 nanozyme exhibiting remarkable oxidase-like activity, was synthesized and characterized, facilitating the catalysis of TBHQ oxidation to 2- tert -butyl-1,4-benzoquinone (TBBQ). The ensuing chromogenic reaction between TBBQ and ethylenediamine produced a stable and colored product, serving as a reliable indicator for the rapid and specific detection of TBHQ. Building upon this discovery, a portable and low-cost colorimetric sensor was fashioned by integrating the nanozyme into κ -carrageenan alcogel, thereby enabling on-site TBHQ detection via a smartphone-based sensing platform. The colorimetric sensor exhibited a detection limit of 0.8 μg mL –1 , demonstrating robust performance across various matrices such as edible oils, cosmetics, and surface water. Recoveries ranged from 84.9 to 95.5%, with the sensor’s accuracy further validated through gas chromatography-mass spectrometry. Our study presents an effective approach to rapid and convenient monitoring of TBHQ, exhibiting good extensibility and practicability.
研究领域:
分析化学
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食品科学
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环境监测
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产品关联
DOI
PubMed
高影响因子
ANALYST
·
2026
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IF 3.6
Dexian Kong,Jiajin Feng,Shiting Deng,Mingwei Yang,Yuwu Chi
A new electropolymerized methimazole (p-MMI) film-modified glassy carbon electrode was developed for simultaneous detection of hydroquinone (HQ) and catechol (CC). The p-MMI/GCE was fabricated through cyclic voltammetric deposition of methimazole, a sulfur-containing heterocyclic monomer, which formed a catalytically active interface. Electrochemical characterization revealed that the p-MMI film dramatically enhanced electron transfer kinetics: the oxidation peak currents of HQ and CC increased by 4.8-and 5.3-fold compared to bare GCE, respectively, meanwhile achieving a remarkable peak potential separation of 103 mV . Differential pulse voltammetry demonstrated dual linear responses for both isomers across 1.0 -800 μmol L -1 , with detection limits of 0.6 μM (HQ) and 0.2 μM (CC) (S/N=3). The sensor exhibited exceptional anti-interference capability against common coexisting species (e.g., ascorbic acid, Na + /K + ions) and maintained 95.2% initial response after 50 cycles. Practical applicability was validated through river water analyses, yielding recoveries of 86.4 -107.6% with RSD <4.3% (n=5).Mechanistic studies suggested that the synergistic effects of methimazole's thiol groups (enhancing analyte adsorption) and conjugated imidazole rings (facilitating charge transfer) underpinned the superior performance. This work not only establishes p-MMI as a cost-effective sensing material but also provides a paradigm for transforming simple organic molecules into high-performance electrochemical interfaces through rational electropolymerization strategies.
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Qi Lian,Xuefang Zheng,Zhao'an Liu,Lijun Song,Mengze Zhao,Yingjie Du,Guirong Peng
Novel layered cubic MnCo 2 O 4 nanozyme was prepared by the hydrothermal method. • Layered cubic MnCo 2 O 4 has CAT, OXD and POD nanozyme activities. • Catalytic performance, mechanism and kinetics of MnCo 2 O 4 were systematically studied. • A sensitive colorimetric sensor based on MnCo 2 O 4 oxidase-like activity targets hydroquinone detection. • Smartphone-integrated portable dual-mode strategy is developed for on-site hydroquinone detection. Through a feasible hydrothermal method, a novel bimetallic oxide stratiform cube-like MnCo 2 O 4 nano-enzyme composite was synthesized. Notably, the redox couples of both Co 2+ /Co 3+ and Mn 2+ /Mn 3+ provided richer oxidation-reduction reactions, thereby leading to an enhanced catalytic activity. Significantly, MnCo 2 O 4 as an enzyme mimic with triple enzyme-like activities (catalase-like (CAT), peroxidase-like (POD), and oxidase-like (OXD)) could oxidize colorless 3,3′,5,5’-Tetramethylbenzidine (TMB) to blue oxTMB without the exogenous addition of H 2 O 2 . The catalytic performance, mechanism and kinetics of catalytic reaction were systematically investigated. Owing to the high oxidase activity of MnCo 2 O 4 , a sensitive chromogenic sensing platform for the quantitative detecting of hydroquinone (HQ) concentration was constructed. The colorimetric detection method showed excellent linear relationship (1.0 μM–100 μM), a short detection time (5 min), a low limit of detection (0.36 μM) and the recovery rate of 96.70%–99.28%, which reveals the potential of MnCo 2 O 4 nanozymes in biosensing and biocatalytic fields. Furthermore, a smartphone-based portable colorimetric analysis method was also developed. Download: Download high-res image (128KB) Download: Download full-size image
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DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2025
·
IF 7.7
Jiahang Liu,Yingying Chu,Xiaoyang Li,Mengying Qian,Weiming Zhang
The co-catalytic effect of hydroquinone/quinone electron shuttle has received great attention in the area of Fenton-like reaction. However, the crucial roles of phenolic or hydroquinone moieties in the chemical structures of organic pollutants have always been overlooked. In this study, we discovered that the introduction of rifampicin (RIF), a representative of rifamycin antibiotics, could trigger complete degradation of atrazine (ATZ) in the Fe(III)/H 2 O 2 system. By exploring the influences of initial Fe(III), H 2 O 2 , RIF concentrations and pH values on ATZ degradation efficiency, key components affecting metal ion valence transitions in the system were identified. Quenching experiments, probe tests and EPR analysis verified that •OH served as the primary active species, while HO 2 •/O 2 •− was also generated. Through monitoring Fe(II) concentration variations and employing mass spectrometric analyses, the oxidation pathway of RIF was elucidated: When mixed with Fe(III), the naphthohydroquinone moiety of RIF immediately acted as a direct electron donor to reduce Fe(III) to Fe(II), while itself being oxidized to RIF-Q. Upon H 2 O 2 addition, it rapidly triggered the classical Fenton reaction with Fe(II) to generate •OH, enabling ATZ degradation. Simultaneously, RIF-Q underwent further oxidative breakdown, with some degradation products retaining the capacity to continuously donate electrons to Fe(III), thereby promoting its reduction. This study provides new insights for the co-catalytic effect of pollutant-derived electron shuttles on the transition of metal ion valences.
研究领域:
环境化学
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污染物降解
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高级氧化过程
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金属离子价态转化
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有机污染物转化
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产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Xinyue Wang,Li Liu,Binbin Jiang,Weiwei Xie,Qingyang Chong,Song Li,Zhiming Chen
The rapid and sensitive detection of hazardous substances is essential for safeguarding human health. This work presented the synthesis of laccase immobilized on N-doped carbon nanonets (N-doped carbon nanonets-lac) biosensor and its application for the photothermal detection of hydroquinone. The N-doped carbon nanonets-lac biosensor demonstrated rapid response and precise detection of hydroquinone in 5 s, along with excellent sensitivity, good tolerance to metal ions and organic compounds, outstanding selectivity, and storage stability. Thanks to the photothermal effect of N-doped carbon nanonets, the N-doped carbon nanonets-lac biosensor was demonstrated as a photothermal biosensor for hydroquinone detection. The N-doped carbon nanonets-lac biosensor exhibits a highly sensitive current response under illumination, with a detection limit as low as 0.14 μM (S/N = 3) and an extensive response range of 1–1000 μM. Furthermore, the N-doped carbon nanonets-lac biosensor showed reliable performance in photothermal analysis of tap and Yangtze River water samples, highlighting its technical effectiveness in detecting contamination of toxic compounds in real water samples.
研究领域:
环境科学
·
生物化学
·
分析化学
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DOI
高影响因子
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
·
2023
·
IF 2.3
Peng Du,Zhengkun Chu,Jing Zhang,Jieyu Ma,Feng Cao,Jie Liu
Hydroquinone (H2Q) present in water is becoming a growing problem in both daily life and industry, with various harmful effects on human health. Therefore, the detection of H2Q is very important. The Carbon dot-based sensor is considered an effective method to detect H2Q. In this work, Pericarpium citri reticulatae carbon dots (P-CDs) were synthesized by a one-pot hydrothermal method for wide linear sensing of H2Q. An orthogonal test was used to expand the active site and fluorescence properties of P-CDs. Under optimal conditions, the P-CDs exhibit an extremely stable blue fluorescence and a quantum yield (QY) of up to 15.4%. In the range of 5–1000 μM, compared with the currently reported carbon dot-based H2Q sensors, the fluorescence intensity (FL) of P-CDs shows good linearity with the variation of H2Q concentration and a higher linear range. Moreover, the sensor demonstrates a low detection limit of 0.058 μM. The possible detection mechanism is based on the synergistic action of static quenching and IFE. This method has been successfully applied to the determination of H2Q in real samples, and the P-CDs-based sensor has the potential to detect H2Q in various complex scenes.
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2015
·
IF 4.097
Yong Wang,Yingying Xiong,Jianying Qu,Jianhang Qu,Shufang Li
In this work, a highly sensitive and selective electrochemical sensor based on multiwalled carbon nanotubes/polydopamine/gold nanoparticles composites (MWCNTs/PDA/AuNPs) and chitosan (CS) was developed, which was used for simultaneous determination of hydroquinone (HQ) and catechol (CC) derived from a large specific area of MWCNTs and superexcellent electroconductibility of AuNPs. It was found that HQ and CC could be completely separated on the electrode using cyclic voltammetry and differential pulse voltammetry technique under optimal conditions. The proposed sensor based on MWCNTs/PDA/AuNPs exhibited linear responses for HQ and CC from 0.1 to 10 μmol L −1 with detection limits (S/N = 3) of 0.035 μmol L −1 and 0.047 μmol L −1 , respectively. In addition, the modified electrode was successfully implemented in the simultaneous determination of CC and HQ in tap and lake water samples. And compared with other methods, this sensor exhibited good sensitivity, stability and reproducibility.
研究领域:
分析化学
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环境监测
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电化学传感
·
纳米材料
·
水污染检测
✓ 已验证
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Jing Tang,Xiaoqing Ma,Jing Liu,Shengbiao Zheng,Jianfei Wang
In this study, an electrochemical sensor for the simultaneous detection of hydroquinone (HQ) and catechol (CC) was fabricated on glassy carbon electrode (GCE) modified with graphene quantum dots (GQDs). The prepared GQDs were characterized by transmission electron microscope and fourier transform infrared spectroscopy. The GQDs/GCE, which prepared by electrodeposition method, and characterized by electrochemical impedance spectra, exhibited excellent electrochemical catalysis and conductive properties for HQ and CC. Owing to the high electroactive surface area, good electrocatalytic activity and low charge transfer resistance of GQDs, HQ and CC can be easily measured simultaneously for the large separation of oxidation peak potentials (113 mV) and do not interfere with each other. Under the optimal experimental condition, the oxidation peak currents were linear to HQ/CC in the range from 0.5 μM to 100 μM with the same low detection limits of 0.08 μM (S/N=3). Simultaneous determination of HQ and CC with such electrode was conducted in river water samples with reliable recovery between 97.90% and 103.9%.
研究领域:
分析化学
·
电化学
·
环境监测
·
传感技术
·
水污染检测
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DOI
高影响因子
IONICS
·
2023
·Vol. 30
·期 2
·1089-1100
·
IF 2.8
Zhao Jifan,Lu Zhenyong,Wang Yue,Mário Baptista José Laurindo,Wang Shaoyan
Cellulose, which is one of the main components of wood biomass, was carbonized and activated by KOH to prepare a hierarchical porous carbon. This biomass derived carbon was successfully utilized as an effective sensor’s material for simultaneously determine hydroquinone (HQ) and catechol (CC) through cyclic voltammetry and amperometry techniques. The resulting sensor exhibited wide linear ranges for HQ (0.5–3000 μmol/L) and CC (1–3000 μmol/L), with the detection limits of HQ (0.47 μmol/L) and CC (0.4 μmol/L) by amperometry technique, respectively. In addition, the prepared sensor also possesses good performances including specific selectivity, long lifetime and good applicability. The practical application in domestic lake water samples with satisfied recoveries implies the proposed sensor is promising. These results demonstrate that cellulose containing biomass have potential as an effective precursor of porous carbon materials and are applicable on various electrochemical sensors.
研究领域:
电化学
·
材料科学
·
环境监测
·
分析化学
·
传感器技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）