Biosensors-Basel
·
2025
·Vol. 15
·期 11
·719
·
IF 5.6
Min-Fu Wu,Jing-Min Li,Sha Li,Min-Hua Wu,Ri-Sheng Chen,Yan-Can Liu,Jian-Nan Liu,Zhen-Lin Xu,Yi-Chao Yang,Jia-Dong Li,Qing-Yi Lei,Si-Min Zhan,Lin Luo
In this study, a colorimetric–photothermal dual-mode immunosensor based on Fe(Ⅲ)–gallic acid composite Prussian blue nanozyme (FGAN@PB NPs) was developed for the highly sensitive detection of malachite green (MG) in aquatic products. This strategy addresses the stability limitations associated with conventional horseradish peroxidase (HRP). In the colorimetric mode, the immunosensor exhibited an IC50of 7.56 ng/mL with a linear detection range of 2.21–25.84 ng/mL. In the photothermal mode, the linear range was 0.262–25.6 ng/mL, with a detection limit (LOD) of 0.31 ng/mL. The results from the two detection modes were mutually corroborative. Moreover, the detection of the proposed immunosensor was strongly correlated with the LC-MS/MS, offering a promising approach for the rapid on-site screening of MG and improving its applicability in complex sample matrices.
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PubMed
高影响因子
MATERIALS LETTERS
·
2026
·
IF 2.6
Yi Xu,Jian Zhou,Xiaozhi Wang,Chenchen He,Zemin Yu,Jiayi Du,Xiaoyong Wei,Yujun Feng,Zhuo Xu,Ran Xu
The phase transition behavior of Pb(Hf 1- x Ti x )O 3 (PHT) ceramics with low Ti content (x = 0.02–0.06) was systematically investigated. Results reveal that increasing Ti content induces the transition from the antiferroelectric (AFE) to the ferroelectric (FE) phase, with the phase boundary located near x = 0.05 (95/5 composition). For PHT 98/2, a dielectric anomaly at 125 °C corresponds to an AFE I → AFE II transition. In PHT 96/4, a high-temperature ferroelectric phase was identified, with a sequential phase evolution of AFE → FE → PE upon heating. PHT 95/5 exhibits clear ferroelectric behavior but retains a partial AFE component, resulting in a non-monotonic temperature dependence of remnant polarization ( P r ). These findings suggest that the AFE/FE phase boundary in the PHT system lies near 95/5 and that its phase transition characteristics closely resemble those observed in Pb(Zr 1- x Ti x )O 3 (PZT)-based materials.
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JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Dazhong Yang,Wanwan Deng,Ao Tan,Zheting Chu,Wenfei Wei,Renji Zheng,Yangzi Shangguan,Atsushi Sasaki,Masatoshi Endo,Hong Chen
The hazardous red mud (RM) with high As/F mobility and heavy metal contaminated soil have constituted severe environmental threats. This work demonstrates a “waste to eco-material” strategy through a reliable and low-cost protonation approach to eliminate the As/F leaching risk of RM, and then recycle it as heavy metal passivators for Pb/As polluted soil remediation . The As/F anions have been immobilized by the protonated Fe/Al (hydr)oxides within RM via the formation of stable As/F compounds during the protonation process, which satisfies the requirement by the World Health Organization (As leaching <0.01 mg/L; F leaching <0.8 mg/L). Moreover, in the oilseed rape pot experiments, by adding 30 g/kg stabilized RM into Pb/As polluted soils (100 ~ 300 ppm), benefited from its large adsorption capacity, approximately 40.9 ~ 49.7% Pb and 40.8 ~ 54.8% As concentrations in the plant are reduced without adverse effects. The whole process for RM treatment and soil remediation is cost-effective, straightforward and eco-friendly without secondary pollution or soil degradation . This research provides a green chemical strategy to address both RM recycling and heavy metal contaminated soil remediation problems, which shows high economic feasibility and ecological benefits.
研究领域:
环境科学
·
土壤修复
·
废弃物管理
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Nanoscale Research Letters
·
2012
·Vol. 7
·期 1
·1-7
·
IF 2.726
Li Wei,Xu Yaohui,Zhou Yang,Ma Wenhui,Wang Shixing,Dai Yongnian
Silica nanoparticles have been functionalized by click chemistry and atom transfer radical polymerization (ATRP) simultaneously. First, the silanized silica nanoparticles were modified with bromine end group, and then the azide group was grafted onto the surface via covalent coupling. 3-Bromopropyl propiolate was synthesized, and then the synthesized materials were used to react with azide-modified silica nanoparticles via copper-mediated click chemistry and bromine surface-initiated ATRP. Transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis were performed to characterize the functionalized silica nanoparticles. We investigated the enrichment efficiency of bare silica and poly(ethylene glycol) methacrylate (PEGMA)-functionalized silica nanoparticles in Pb(II) aqueous solution. The results demonstrated that PEGMA-functionalized silica nanoparticles can enrich Pb(II) more quickly than pristine silica nanoparticles within 1 h.
研究领域:
材料科学
·
环境化学
·
纳米技术
·
分析化学
·
污染治理
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高影响因子
International Journal of Applied Glass Science
·
2015
·Vol. 7
·期 3
·337-344
·
IF 2.611
Guang Yang,Fang Xia,Xiaoyan He,Jianfeng Wen,Guorong Chen
Effects of Pb on thermal stability and crystallization kinetics of chalcogenide glasses (1− x )(0.85GeS 2 −0.15Sb 2 S 3 )− x PbS ( x = 0–0.4) have been carried out by a detailed calorimetric study and structural analysis. The glass stability was assessed based on three criteria, while the activation energies of crystallization were calculated under nonisothermal crystallization conditions by the Kissinger method, the Augis/Bennett method, the Mahadevan method, and the modified Ozawa method, respectively. Both stability criteria and activation energies of crystallization suggest that the glasses possess excellent thermal stability. The thermal stability decreases with addition of PbS but is insensitive to the content of PbS in the range from x = 0.1 to 0.4. Raman, XRD, and molar volume structural characterization suggested that the excellent thermal stability of these glasses is due to the glass former role of PbS. The calculated Avrami exponent pointing to a 3-dimensional crystallization mechanism which explains the reason for the previously reported successful preparation of infrared transmitting chalcogenide glass-ceramics.
研究领域:
材料科学
·
玻璃物理
·
热分析
·
固态化学
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高影响因子
RSC Advances
·
2019
·Vol. 9
·期 46
·26718-26728
·
IF 3.049
Wei Han,Wenlong Li,Jiazhuang Chen,Mei Li,Zhuyao Li,Yongchang Dong,Milin Zhang
Cyclic voltammetry, square wave voltammetry, linear polarization, chronopotentiometry and chronoamperometry were performed to investigate the electrochemical properties of Y(III) on W and Pb electrodes in LiCl–KCl eutectic melts. The diffusion coefficient of Y(III) measured by various techniques was in the order of 10−5. The nucleation of Y on W electrode was found to comply with the instantaneous nucleation mechanism. With increasing temperature, the exchange current densities increased and the charge-transfer resistances decreased, and exchange current densities are distinctly larger on liquid Pb electrode compared with W electrode. In addition, the co-deposition mechanism of Y(III) and Pb(II) on W electrode was also studied and four Pb–Y intermetallics could be detected. The feasibility of extraction metallic Y from the melts was explored by co-deposition on W electrode and under-potential deposition on liquid Pb electrode and the extracted products consisted of Pb3Y and Pb phases.
研究领域:
材料科学
·
电化学
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高影响因子
Journal of Environmental Chemical Engineering
·
2022
·
IF 7.968
Shenyi Jiang,Shuang Li,Pingbo Zhang,Hongyan Miao,Pingping Jiang,Yan Leng
Melamine sponge (MS) with open three-dimensional porous structure is regarded to be an ideal substrate to prepare monolithic adsorbents for heavy metal ions removal. However, most of the existing surface modification strategies of MS are still difficult to achieve a satisfactory adsorption ability for Pb(II). In this study, tannic acid (TA) and polyethyleneimine (PEI) were alternatively deposited on the framework of MS via layer-by-layer covalent assembly between polyphenols of TA and amine groups of PEI. The morphology, molecular structure, and overall properties of the obtained multilayer-decorated MS materials (PEI-TA) n -MS were characterized using SEM, XPS, FT-IR, and TGA . (PEI-TA) 2 -MS was demonstrated to be extremely stable and exhibited excellent adsorption behavior for Pb(II). The maximum Pb(II) adsorption capacity reached 257.4 mg/g at pH value of 5.0 and initial Pb(II) concentration of 200 mg/L. It is better than those of previous reported PEI-based adsorbents under similar conditions. The kinetic and isotherm data revealed that such process is exothermic, and well fits the Langmuir isotherm and the pseudo-second-order kinetic models. The present PEI-TA-based layer-by-layer assembly strategy may offer new prospects for the versatile design of other monolithic adsorbent materials.
研究领域:
环境科学
·
材料科学
·
化学工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Gan Huang,Xin-Yi Cai,Hu Li,Jin-Rui Cai,Ying-Sen Xia,Zhi-Ping Huang,Li-Mei Lin,Fu-Bao Gong,Shui-Yuan Chen,Gui-Lin Chen
Antimony sulfide (Sb 2 S 3 ) has emerged as a promising absorber material for thin-film solar cells due to its excellent light absorption properties. However, its inherent quasi-one-dimensional crystal structure and complex defect landscape severely limit device V OC and J SC . In this study, lead-doped Sb 2 S 3 was achieved through an ion exchange method, and Sb 2 S 3 :Pb thin films were subsequently prepared via vapor transport deposition(VTD). The incorporation of Pb doping promoted preferential [hk1] orientation growth, facilitating vertical carrier transport channels across the substrate. Concurrently, it significantly reduced the Urbach energy, enhanced carrier concentration, and effectively suppressed non-radiative recombination through the formation of shallow-level Pb Sb defects alongside reduced defect density of deep-levlel Sb i . The optimized device achieved V OC of 709 mV, J SC of 12.99 mA/cm 2 , and a power conversion efficiency of 5.22%, establishing a new record efficiency for Sb 2 S 3 solar cells fabricated by VTD. This work provides an effective strategy for improving Sb 2 S 3 thin-film quality through cation doping and advances its development in photovoltaic applications.
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高影响因子
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
·
2022
·
IF 2.06
Qiang Ling,Hanwen Liang,Rong Wu,Zhihao Wang,Lei Zhao,Qingping Ke,Xiangchun Liu,Ping Cui
Fluorine-doped graphene supported PbO (F-rGO/PbO) composite was prepared through a facile water bath method to study an improvement strategy for its catalytic performance in thermal decomposition of ammonium perchlorate (AP). The characterization results showed that the PbO with the size of 20 ∼ 30 nm are highly dispersed on the surface of F-doped graphene (F-rGO). Compared with other samples, the F-rGO/PbO exhibited superior catalytic performance, as 3 wt% of catalyst added in AP, the peak temperature for HTD reduced by 124°C, and the peak temperature for LTD increased by 8°C. The released apparent specific heat of the thermal decomposition of AP catalyzed by F-rGO/PbO (3603.7 J/g) is five times of that of pure AP (603.5 J/g). The doping of F atoms in graphene increased BET surface areas of the F-rGO carrier and enhanced the content of hydroxyl groups on the surface of graphene, which improved the thermal decomposition rate of AP. While the highly dispersed PbO NPs further increased BET surface areas of F-rGO/PbO to provide more active sites during the thermal decomposition of AP.
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高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2014
·Vol. 161
·期 12
·H730
·
IF 2.859
Lina Xu,Ruizhuo Ouyang,Shuang Zhou,Haifeng Wen,Xin Zhang,Yang Yang,Ning Guo,Weiwei Li,Xin Hu,Zhuoyuang Yang,Lei Ouyang,Yuqing Miao
Novel Sn-Pb hybrid nanoparticle decorated mesoporous carbon (MPC) was successfully prepared on a glassy carbon electrode (GCE) and used for the anodic stripping measurements of Cd(II) via square wave Voltammetry. In the presence of MPC, the properties of Sn-Pb were dramatically improved including the ability of electron transfer, particle size and hydrophilicity, which played a significant role in achieving more preferable analytical performances of Cd(II) with Sn-Pb based sensor. After all the experimental parameters involved were carefully optimized, the proposed Sn-Pb/MPC based sensor was applied to the stripping determination of Cd(II), showing the best electrochemical behaviors by comparison with Sn, Pb and Sn-Pb modified electrodes. The synergic effect between Sn-Pb and MPC was believed to be the major factor leading to such improved electrochemical properties of Sn-Pb/MPC based sensor for Cd(II) analysis. In the concentration range of 0–140 μg L−1, the linear analytical curve for Cd(II) was achieved with correlation coefficient and detection limit calculated to be 0.9996 and 0.36 μg L−1 (S/N = 3), respectively. By using the standard addition method, Cd(II) ion in river samples was successfully determined with satisfactory recoveries higher than 100%. These results suggest that the proposed method can be applied as a simple, efficient alternative to monitor the heavy metals in water samples, compared with ICP based techniques.
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高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 15
·118583
·
IF 6.3
Qinghu Guo,Ting Wang,Jinglong Fan,Yimang Zhao,Xiangyu Meng,Xiaoyi Gao,Zhonghua Yao,Weiping Gong,Hanxing Liu,Hua Hao,Shujun Zhang
Electrostrictive ceramics are crucial for high-precision actuators due to their low hysteresis, fast response, and low heat dissipation. In this work, Nd 3+ was strategically employed to optimize the electrostrictive properties of x Nd-doped Pb(Ni 1/3 Nb 2/3 )O 3 -PbZrO 3 -PbTiO 3 (PNN-PZ-PT) ceramics. A phase transition from the morphotropic phase boundary to a cubic structure, accompanied by enhanced dielectric relaxor behavior was observed with increasing Nd content, which can be attributed to the disruption of long-range ordered ferroelectric domains caused by aliovalent Nd doping-induced local structural heterogeneities—thereby reducing strain hysteresis and enabling improved electrostrictive response. Notably, outstanding electrostrictive strain of 0.105% and high electrostrictive coefficient M 33 = 10.5 × 10 −16 m 2 /V 2 were obtained under a 10 kV/cm for the 3%Nd-doped PNN-PZ-PT ceramic, superior to other relaxor ferroelectric ceramics. Additionally, this composition exhibits outstanding cycling reliability with only 5% strain degradation over 10 6 electrical cycles, positioning it as a promising candidate for precision micro-actuators applications requiring ultra-stable, high-efficiency electromechanical responses.
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高影响因子
Journal of Hazardous Materials Advances
·
2025
·
IF 7.7
Zhirong Chen,Jinfeng Tang,Nana Wang,Jianqiao Wang,Tangfu Xiao,Minqi Fan,Yu Chen,Runshen He,Mengyang You
Lead (Pb) bioaccumulation in aquatic ecosystems poses significant threats to environmental health and human safety. To address the urgent need for efficient and operationally simple adsorbents for aqueous Pb(II) removal, this study presents the development of novel biomass adsorbents, specifically xanthate-modified Auricularia auricula (XAAS), Pleurotus ostreatus (XPOS) and Flammulina velutipes (XFVS), for the rapid and selective removal of Pb(II) ions from aqueous solutions. These materials were synthesized via a straightforward xanthate modification followed by lyophilization, optimizing conditions to balance cost-effectiveness and adsorption performance. Structural characterization revealed a three-dimensional macroporous architecture in all adsorbents, enabling rapid solid-liquid separation through simple filtration. Kinetic studies revealed that Pb(II) removal by XAAS, XPOS and XFVS was predominantly chemisorption-driven, reaching equilibrium within 15 min. Langmuir isotherm modeling determined maximum adsorption capacities of 190.48, 161.03 and 170.94 mg/g, respectively, showing minimal temperature dependence. Competitive adsorption experiments established Pb(II) selectivity following the inhibition sequence: Cr(III) > Cu(II) > Cd(II) > Tl(I). Mechanistic studies identified ion exchange, surface complexation and microprecipitation as primary removal pathways. Notably, xanthate hydrolysis within the adsorbent matrices facilitated the formation of PbS and Pb 3 (CO 3 ) 2 (OH) 2 nanoparticles. In simulated Pb(II)-contaminated Pearl River water, the adsorbents achieved >86% removal at 34.11 mg/L Pb(II) and complete elimination (100%) at trace levels (0.41 mg/L). These fungal-derived adsorbents exhibited comparable structural properties and Pb(II) removal performance. Their combination of high adsorption capacity, rapid kinetics, selectivity and simple synthesis underscores strong potential for practical remediation of heavy-metal-polluted surface waters.
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