MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Siqi Zhang,Xiao Li,Yinhui Yi,Zixiang Liao,Yue Ren,Kunqi Fan,Zhiyuan Wang,Pengpeng Yu,Libo Li,Tianyan You
Pt NPs was loaded to enhance the laccase-like activity of Cu-based nanozyme. • Design of a three-channel colorimetric sensing array based on the nanozyme. • The array enabled the simultaneous identification and detection of multiple phenol. • The developed sensor array showed superior analytical ability for phenol detection. Phenolic compounds represent a class of hazardous environmental pollutants characterized by high toxicity, low biodegradability, and a strong tendency to bioaccumulate, leading to considerable risks for ecological safety and human health. In this work, a novel bimetallic nanozyme Pt@GA-Cu was synthesized by loading platinum nanoparticles (Pt NPs) onto a copper-based laccase-like material. The synergistic interaction between Pt and Cu significantly enhanced the electron transfer rate and catalytic efficiency, resulting in better laccase-like performance than that of the individual materials. By this enhanced performance, a time-dependent three-channel colorimetric sensor array was constructed. With the integration of machine learning (ML), specifically linear discriminant analysis (LDA) and hierarchical cluster analysis (HCA), the as-developed sensor successfully not only distinguished four distinct phenolic compounds (2,4-DP, 4-cP, CAT, and 2,6-DMP) with high accuracy, but also exhibited exceptional discriminative capabilities even when deployed within intricate multi-component phenolic solutions. Furthermore, to evaluate the functionality of the sensor in practical condition, real water samples were tested using standard addition methods, and satisfactory recovery rates (93.15–112.5%) and low relative standard deviations (<2.2%) were obtained. This study provides an efficient and reliable strategy to rapidly detect and differentiate among various phenolic pollutants, offering considerable potential for environmental monitoring applications. A Pt-loaded Cu nanozyme-based time-dependent colorimetric array with machine learning simultaneously discriminates and detects four phenolic pollutants. Download: Download high-res image (179KB) Download: Download full-size image
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高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Jing Su,Yubin Kang,Yichen Zhu,Zhi Wen,Mingchun Li,Qiangqiang Zhu,Yue Zhai,Tengfei Wu,Le Wang
Owing to their environmental friendliness and excellent luminescent properties, lead-free copper-based halide perovskites have attracted significant attention for use in next-generation optoelectronic devices. In this work, Ga-doped Cs3Cu2I5 phosphors derived from CsCu2I3 were synthesized using a high-temperature solid-state method. Ga doping effectively modulated the crystal growth behavior and electronic structure, enabling high-performance emission tuning. The optimized material exhibited high-color-purity blue emission centered at ∼446 nm, with a CIE color purity as high as 97.7%. Owing to its exceptional optical properties, a blue LED device was fabricated, exhibiting stable and high-color-purity emission, thereby highlighting its practical potential for high-resolution display technologies and solid-state lighting applications. Furthermore, the material demonstrates remarkable water-induced color-switching behavior, enabling reversible color changes upon exposure to water. This characteristic renders it a promising candidate for applications in anticounterfeiting and information encryption. This study provides new insights and strategic directions for the development of copper-based perovskites aimed at achieving high-color-purity blue emission and multifunctional intelligent material applications.
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PubMed
高影响因子
Functional Materials Letters
·
2025
·
IF 1.1
Jie Zhao,Ming Guan,Can Cui,Saifang Huang
To enhance the room-temperature lithium-ion conductivity and interfacial stability of Li 7 La 3 Zr 2 O 1 2 (LLZO) solid-state electrolytes, a co-doping strategy with Ga 3 + and Nb 5 + was employed. By systematically optimizing the sintering protocol — including heating rate, temperature, and dwell time — highly dense and phase-pure cubic-phase LLZO ceramics were successfully synthesized. The co-doping approach effectively stabilized the cubic garnet structure and regulated the lattice framework to facilitate Li + transport pathways. Under optimized conditions, compared to undoped LLZO (0.31 mS cm − 1 , 0.362 eV), the co-doped ceramic exhibited significantly enhanced total ionic conductivity (0.81 mS cm − 1 ) and reduced activation energy (0.207 eV), confirming the superior transport performance enabled by the co-doping strategy. Furthermore, the electrolyte showed good wettability and interfacial compatibility with metallic lithium, enabling stable cycling performance in symmetric Li∥Ga/Nb-LLZO∥Li cells over short durations. These results confirm the practical potential of the co-doped LLZO electrolyte in all-solid-state lithium batteries. This study provides a viable pathway for the material design and processing of high-performance LLZO-based solid electrolytes.
研究领域:
材料科学
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固体离子学
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储能技术
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陶瓷工艺
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Kang An,Siran Zhang,Hong Wang,Ningyan Li,Ziyang Zhang,Yuan Liu
Direct hydrogenation of CO 2 into ethanol has been considered as an up-and-coming way to achieve CO 2 utilization. Ethanol can be generated by reverse water gas shift as well as CO hydrogenation over Co-based catalysts, where the regulation of Co 0 − Co δ+ is critical. Herein, we designed a supported Co-based catalyst doped with gallium, which was derived from Co-Al-O spinel precursor to facilitate synergistic catalyzing for CO 2 -to-ethanol transformation. The selectivity of ethanol reached 20.1 % in a continuous flow fixed micro-reactor over reduced CoGa 1.0 Al 1.0 O 4 /SiO 2 catalyst at 270 °C and 3.0 MPa. Results of characterization show that the existence of the strong interaction between Ga oxide and cobalt induced the configuration of Co 0 − Co δ+ active pairs, which promotes the process of ethanol synthesis by coupling the dissociation (CH x *)/non-dissociation (CO*) of the intermediates. The strategy by tuning the interaction between cobalt and gallium and/or aluminum oxide brings an avenue to tailor Co 0 − Co δ+ active pairs for the hydrogenation of CO and CO 2 .
研究领域:
催化化学
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能源化学
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材料化学
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环境化学
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工业催化
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DOI
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2017
·Vol. 32
·期 3
·e4177
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IF 2.319
Shaohua Wen,Yongfei Li,Weixing Chen,Yaping Lei,Chunyan Luo,Yonggang Hou
A series of L-lactide (LLA), 1,3-trimethylene carbonate (TMC) and glycolide (GA) terpolymers (LTG) of different monomer molar ratios were synthesized by using ring-opening copolymerization. An effective and low-toxic zirconium (IV) acetylacetonate Zr(Acac) 4 was used as catalyst. The viscosity-average molecular weights ( M η ) of obtained polymers were all above 2.2×10 4 g/mol. The chemical structure and viscosity of terpolymers were confirmed by Fourier transform infrared spectroscopy (FTIR), 1 H nuclear magnetic resonance ( 1 HNMR), 13 C nuclear magnetic resonance ( 13 CNMR) and an Ubbelohde viscometer. The thermal and mechanical properties were investigated by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), X-ray diffraction (XRD) and stress-strain measurements. Results suggested that all terpolymers were amorphous and showed good thermal stability. Also it was found that elongation increased with the decreasing of LLA unit. More importantly, terpolymers displayed shape memory property when deformation temperatures were 14-15 °C above T g .
研究领域:
高分子化学
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材料科学
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Xianwei Meng,Bangdeng Du,Xueqing Chen,Qian Li,Jing Liu
The exceptional electron transport performance and high stability of titanium dioxide (TiO 2 ) make it widely used in the electron transport layer (ETL). However, the presence of numerous surface defects in TiO 2 layer can lead to unnecessary non-radiative recombination, which reduces carrier mobility and affects the photoelectric conversion efficiency (PCE) of perovskite solar cells (PSCs). Therefore, tremendous researches have been focused on reducing surface defects and improving carrier mobility in TiO 2 layer. In this study, we adopted metal gallium (Ga) with high conductivity at room temperature as an optimization strategy to enhance the performance of TiO 2 layer. By incorporating metal Ga into the TiO 2 precursor solution, we successfully fabricated a TiO 2 -Ga layer that exhibits reduced surface defects and optimized energy level structure. This provides an efficient pathway for electron transport in perovskite layer. Experimental results demonstrate that (methyl ammonium lead tribromide) MAPbBr 3 perovskite solar cell devices based on TiO 2 -Ga layer achieve nearly 24% higher PCE compared to those based on pure TiO 2 layer. This successful optimization strategy utilizing metal Ga offers novel insights and approaches for enhancing the performance of PSCs.
研究领域:
材料科学
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能源技术
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
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IF 8.758
Yan Zhao,Quanrong Deng,Ruxin Guo,Zhiheng Wu,Yukun Li,Yanyan Duan,Yonglong Shen,Wei Zhang,Guosheng Shao
The scalability processing of all functional layers in perovskite solar cells (PSCs) is one of the critical challenges in the commercialization of perovskite photovoltaic technology. In response to this issue, a large-area and high-quality gallium-doped tin oxide (Ga-SnOx) thin film is deposited by direct current magnetron sputtering and applied in CsPbBr3 all-inorganic PSCs as an electron transport layer (ETL). It is found that oxygen defects of SnOx can be remarkably offset by regulating oxygen flux and acceptor-like Ga doping level, resulting in higher carrier mobility and suitable energy level alignment, which is beneficial in accelerating electron extraction and suppressing charge recombination at the perovskite/ETL interface. At the optimal O2 flux (12 sccm) and Ga doping level (5%), the device based on sputtered Ga-SnOx ETL without any interface modification shows a power conversion efficiency (PCE) of 8.13%, which is significantly higher than that of undoped SnOx prepared by sputtering or spin coating. Furthermore, a PCE of 5.98% for a device with an active area of 1 cm2 is obtained, demonstrating great potential in fabricating efficient and stable large-area PSCs.
研究领域:
材料科学
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光伏技术
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能源工程
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PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2023
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IF 4.4
Chao Sun,Naiyu Guo,Li Ye,Longxin Miao,Mian Cao,Mingdie Yan,Jianjun Ding
Phenol red (PR) is generally used as an acid-base indicator and a printing and dyeing colorant. When its content exceeds a certain concentration in water, it will cause great damage to the human body. Therefore, it is very important to detect the content of PR in water. The advantage of surface enhanced Raman scattering (SERS) is detecting samples quickly, non-destructive and high sensitivity without sample pre-treatment. SERS has attracted great attention in all fields of detection and analysis. In this paper, the method of attaching silver nanoparticles to metallic single-walled carbon nanotubes form carbon nanotubes/silver nanoparticles (CNTs/AgNPs) structure and then combining it with silica sheet is proposed. SERS substrate with silica/carbon nanotubes/silver nanoparticles (SiO 2 /CNTs/AgNPs) composite structure has extremely high reinforcement effect. In the quantitative analysis of the detected substance, mathematical fitting or machine learning is used to find the relationship between the intensity of Raman signal and the concentration of the detected substance. The BP neural network optimized by genetic algorithm (GA-BP) is designed in this study. The weights of GA-BP to enhance the robustness of BP neural network, the method of adaptive learning rate and the number of hidden nodes is set to solve the problem that GA-BP is easy to fall into local optimum, thus establishing a quantitative analysis model of PR solution concentration. The model can detect different concentrations of PR solutions with high accuracy quickly, simply and sensitively. Finally, compared with other published quantitative models, GA-BP correlation coefficient R 2 determined by the training results of the model is 0.99996, and the root mean square error of the prediction is RMSEP = 0.002510, which is 0.0005 higher than the mathematical fitting method, it shows better performance. A reliable idea for the preparation of SERS substrate and online detection of PR concentration in water proposed in this study.
研究领域:
环境科学
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分析化学
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纳米材料科学
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PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2017
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IF 5.401
Zhichao Zeng,Ruiyue Ma,Chun Liu,Yongqian Xu,Hongjuan Li,Fengyu Liu,Shiguo Sun
The application of Ga-based compounds in medical and industrial fields could induce accumulation of gallium in the human body, and further exert certain Ga-toxic effect on health. So it is very important for gallium detection in biological aspects and different environments. Fluorescent analysis owning various merits surpass other analytic methods and received great attention recently. In this work, a biomimetic crab-like fluorescent probe denoted as NL was designed and successfully synthesized, which can selectively recognize Ga 3+ from other metal ions in acetate buffer/DMSO ( v/v = 1/1, pH = 5. 2), and the limit of detection was 12. 89 nM. Moreover, this probe can detect Ga 3+ in complex environments, such as human serum and urine, pork, rabbit kidney and rabbit liver, and even in simulated pollution water. Besides, the proposed method can provide portable test for Ga 3+ and reach a detection limit to 1. 2 mg/Kg by naked eye under ultraviolet irradiation, which is lower than the toxic concentration (4 mg/Kg) of Ga 3+ permitted in organs. The results indicated that NL can be further applied in clinical examination and environmental detection, and the biomimetic designing can provide reference to the development of other fluorescent sensors.
研究领域:
分析化学
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生物医学
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环境科学
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高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 30
·14930-14938
·
IF 9.931
Y. F. Cui,W. Jiang,S. Liang,L. F. Zhu,Y. W. Yao
A series of In/Ga-based MIL-68s, with batch molar ratios of In(III) to Ga(III) (In/Ga ratio) equaling 5 : 0, 4 : 1, 3 : 2, 1 : 1, 2 : 3, 1 : 4, and 0 : 5, were solvothermally prepared. Calcinating the as-prepared MOFs at 500 °C for 3 h produced a series of mesoporous In/Ga oxides (IGOs) of hexagonal morphology with a characteristic main pore radius of 3 nm to 12 nm, and a specific surface area of up to 60–135 m2 g−1. Studies on the ethanol gas-sensing properties of the as-prepared IGOs revealed that the two IGOs produced from MIL-68 with In/Ga ratios of 3 : 2 and 1 : 1 present high response values of 80–110 towards 300 ppm ethanol and a low detection limit of no more than 2 ppm. However, the response value of In2O3, produced from MIL-68 with an In/Ga ratio of 5 : 0, was 11 towards 300 ppm ethanol. At the same time, the two IGO samples exhibited a high response to ethanol, which was more than 2.6 times higher than response values towards CH3CHO, CH3COCH3, H2, CO, CH4, and NO2, at a concentration of 300 ppm. This gas-sensing performance is suggested to be attributed to their comparatively larger specific surface area, and remarkable oxygen vacancy capabilities.
研究领域:
材料科学
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化学工程
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纳米技术
·
传感器
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高影响因子
JOURNAL OF CATALYSIS
·
2021
·
IF 7.92
Feng Sha,Chizhou Tang,Shan Tang,Qingnan Wang,Zhe Han,Jijie Wang,Can Li
Catalytic conversion of CO 2 into methanol utilizing green hydrogen produced from renewable energy is a promising route to realize carbon neutrality. Although ZnZrO x solid solution catalyst displays excellent catalytic performance, it is still highly desired to make any further improvement. Herein, we found the promoting effect of incorporating Ga into ZnZrO x solid solution catalyst in CO 2 hydrogenation to methanol. Ga promoted ZnZrO x (GaZnZrO x ) solid solution catalyst exhibits CO 2 conversion of 8.8% and methanol space time yield of 630 mg g cat −1 h −1 that are higher than those of ZnZrO x solid solution catalyst (7.7%, 556 mg g cat −1 h −1 ) at 320 °C, while the highly selectivity toward methanol remains unchanged. Chemisorption and H 2 -D 2 exchange results show that GaZnZrO x solid solution catalyst displays higher capacity for the adsorption and activation of H 2 than ZnZrO x solid solution catalyst. Electron paramagnetic resonance result suggests that more oxygen vacancies are derived after incorporating Ga into ZnZrO x solid solution catalyst. In situ diffuse reflectance infrared Fourier transform spectra indicate that the HCOO* and CH 3 O* species are the main intermediate species. The higher IR intensity of intermediate species and lower CH 3 O*/HCOO* ratio on GaZnZrO x solid solution catalyst suggest that the hydrogenation of HCOO* to CH 3 O* is boosted. These results reveal the promoting effect of incorporated Ga into ZnZrO x solid solution catalyst that improves the adsorption and activation of H 2 and CO 2 , thus enhancing catalytic performance of methanol synthesis from CO 2 hydrogenation.
研究领域:
催化化学
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能源科学
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高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2022
·
IF 2.042
Dan Sun,Xiaonian Tang,Xi-ang Tian,Li Liu
Pure and Ga-doped 3 D ordered porous SnO2 (3DOPS) and SnO2 nanoparticles (NPs) were prepared. The 3DOPS/3% Ga-based sensor exhibits an improved response (61/50 ppm) to formaldehyde (HCHO), and the response is 3 times higher than pure 3DOPS (21/50 ppm) at low temperature (220 °C). However, the response of SnO2 NPs/3% Ga (10/50 ppm) is only 1.25 times that of the pure SnO2 NPs (8/50 ppm). Regardless of the SnO2 morphology, doping with Ga can improve its response. However, after the 3 D ordered porous structure of SnO2 doped with Ga element, its response is improved more obviously than that of the particle structure of SnO2. This may be attributed to the combined effect of the construction of the three-dimensional ordered porous structure and the doping elements.
研究领域:
材料科学
·
环境监测
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高影响因子
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