SOLID STATE SCIENCES
·
2017
·
IF 1.811
Zhongqi Zhu,Ke Zhang,Heyun Zhao,Jing Zhu
Hexagonal CePO 4 nanorods were synthesized via a simple hydrothermal method without the presence of surfactants and then characterized by powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible (UV–vis) absorption and photoluminescence (PL) spectroscopy. UV-light driven photocatalytic activities of hexagonal CePO 4 nanorods were detailedly demonstrated via degrading different organic dyes such as congo red (CR), organic rhodamine B (RB), methyl orange (MO) and methylene blue (MB) since these nanorods exhibit strong UV absorption with the cutoff edge of about 420 nm.
研究领域:
材料科学
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环境科学
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化学
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DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2021
·Vol. 25
·期 7
·1937-1947
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IF 2.647
Xu Jiawei,Yang Ke,Zhang Xuezhong,Lei Yunfeng,Meng Xiangyu,Wang Zhifei
The detection of glucose plays an important role in monitoring and controlling diabetes as well as its complications caused by high blood glucose levels. There have been a lot of research on glucose sensors and integrated flexible sensing platforms; however, the detection in oxygen-restrictive environments is few reported. Herein, we described the use of a novel system made up of TiO 2 and ceria-cerium phosphate (CeO 2 -CePO 4 ) composite nanostructures synthesized by a simple procedure to address the oxygen dependence problem confronted in the first-generation amperometric glucose biosensors. The enzymatic activity of sensors was tested in both oxygen-rich and restrictive environments. Our results showed that the resulting composites present good electro-catalytic activity towards glucose oxidation. The electrodes decorated by TiO 2 /CeO 2 -CePO 4 showed a wide linear range from 0.1 to 1.7 mM with a low detection limit of 17.1 μM while the CeO 2 -CePO 4 showed the linear range of 0.1–2.5 mM with limit of detection of 58.0 μM in oxygen-rich environment. Two types of decorated electrodes both responded to glucose well under the oxygen-restrictive environment but former showed better response performance. The as-fabricated electrodes also owned the good anti-interference, stability, and reproducibility. This strategy promises for increasing the sensitivity of glucose biosensors and provides more opportunities for operation in oxygen-restrictive conditions. Graphical abstract
研究领域:
生物传感器
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材料科学
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电化学
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分析化学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Xutao Ning,Yongwei Zhong,Bin Zeng,Xiaohai Deng,Linfang Li
Solar-light-driven photocatalysis is a promising solution to remove various pollution and antibiotic. However, its performance is greatly limited by the fast recombination of photogenerated charge carriers. Here, we prepared carbon-encapsulated cerium phosphate nanocomposites (CePO 4 @C) by an in situ one-step hydrothermal synthesis strategy. The carbon layer not only receives electrons from CePO 4 facilitated by an internal electric field over Mott-Schottky heterostructures but also promotes further electron diffusion along a conductive carbon layer, resulting in fast charge transfer and a low charge recombination rate of photogenerated charge carriers. Due to its suitable characteristics, the nanocomposites demonstrated high photocatalytic efficiency (98.8 % for methyl orange and 81.2 % for tetracycline hydrochloride within 40 min). This work provides an in situ one-step synthesis approach for carbon-encapsulated semiconducting oxide nanocomposites that are promising for use as highly efficient photocatalysts in future applications.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Boda Ouyang,Fei Li,Zhiyong Zhang,Xiaoyi Xie,Lei Chen,Wenjie Sun,Ming-Lai Fu,Baoling Yuan
Excessive phosphate levels in water bodies can lead to eutrophication, one of persistent environmental pollution problems. Metal-organic frameworks (MOFs) have garnered significant attention as a promising material for phosphorus removal due to their high capacity. However, there are challenges with solid-liquid separation necessitating magnetic modification solutions. The low adsorption capacity of magnetite (Fe 3 O 4 ) for phosphates has a potential negative impact on magnetic composites. To explore solutions that enable magnetic modification without reducing the adsorption capacity, Ce-MOFs@Fe 3 O 4 were successfully prepared. Experimental results showed an increase in adsorption capacity and removal rate post magnetic modification, with the phosphorus saturation adsorption capacity reaching 156.01 mg·g −1 . Further investigations involving the adsorbent dosing, co-existence of ions, and stability tests were conducted to explore the practical applications. The results indicated that Ce-MOFs@Fe 3 O 4 performed well across a wide pH range from 4 to 10 and exhibited excellent selectivity in the presence of SO 4 2- , Cl - , and NO 3 - . Zeta potential, FT-IR, and XPS analysis revealed electrostatic attraction and ligand exchange as the main adsorption mechanisms. Ce (III) species played a crucial role in phosphate binding by forming insoluble CePO 4 . On the contrary, Ce (IV) is not helpful for phosphate removal due to insufficient coordination number. In this study, adding Fe 3 O 4 during synthesis facilitated a substantial increase in Ce (III) content, which enhanced the phosphate adsorption capacity and imparted magnetic properties. Hence, the proposed preparation method could serve as a general magnetic strategy for Ce-based adsorbents, enhancing the phosphorus adsorption capacity.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Lixia Wang,Jiasui Huang,Bowen Yao,Zhiyang Huang,Aling Zhou,Haoran Yin,Tayirjan Taylor Isimjan,Bao Wang,Xiulin Yang
Tailoring the electronic structure via charge redistribution is a promising strategy for constructing oxygen reduction reaction (ORR) catalysts to accelerate reaction kinetics for metal-air batteries. Herein, an approximately 3.9 nm thin-layer of Mn 5.64 P 3 /CePO 4 heterostructure stabilized on mesoporous carbon spheres (Mn 5.64 P 3 /CePO 4 @Cs) was synthesized via mild hydrothermal and high-temperature phosphating approaches. The resultant Mn 5.64 P 3 /CePO 4 @Cs demonstrates superior ORR performance in 0.1 M KOH with a kinetic current density of 5.2 mA cm −2 at 0.8 V, increasing 2.4- and 5.8-fold compared to CePO 4 @Cs and Mn 5.64 P 3 @Cs, respectively. Moreover, the zinc-air battery (ZAB) incorporating Mn 5.64 P 3 /CePO 4 @Cs showcases a peak power density of 168 mW cm −2 and robust durability of 400 h, surpassing the advanced Pt/C. Experiments and density functional theory (DFT) calculations indicate that the built-in electric field (BEF)-induced charge asymmetry regulates the d -band center of Mn 5.64 P 3 /CePO 4 @Cs and reduces the energy barrier of oxygen intermediates, thereby improving ORR catalytic performance. This work provides a promising avenue to rationally manipulate the electronic structure of ORR catalysts by constructing heterostructure driven BEF strategy.
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DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Yiqing Zeng,Guangyu Zhou,Jiangxiao Qiao,Yunqi Shi,Jicheng Han,Xiangsen Xu,Junwei Wu,Zhaoxiang Zhong,Weihong Xing
Catalytic membranes are promising multifunctional materials for integrated pollutant control. However, conventional impregnation-based catalyst loading strategies often allow catalytic particles to infiltrate the separation layer, resulting in severe pore blockage and reduced permeance. Herein, we develop a rapid and low-cost asymmetric support-side deposition approach to fabricate tubular CePO 4 /SiC–S catalytic membranes, which effectively prevents catalyst penetration into the separation layer, minimizes pore blockage, and thereby enhances the permeance. The results indicate that CePO 4 catalysts are mainly anchored within the pores of the SiC support, rather than in the separation-layer pores, thereby preserving efficient gas transport pathways and avoiding direct contact between particulate matter (PM) and catalytic sites. Compared with conventional vacuum impregnation, the proposed method achieves comparable ammonia selective catalytic reduction (NH 3 -SCR) activity while reducing permeance loss from 35.44% to only 20.09%. The membrane demonstrated exceptional stability during a 240 h continuous operation at 350 °C, maintaining a dust rejection rate of >99.99% and NO conversion >90%. Notably, dust cake formation was found to further enhance catalytic efficiency, particularly under low filtration velocities (0.5 m min −1 ). Computational fluid dynamics (CFD) simulations revealed that moderate cake deposition promotes uniform flow distribution and extends residence time, thereby improving catalyst utilization. This work provides a scalable fabrication strategy for high-permeance catalytic membranes, offering a practical pathway for synergistic control of multiple pollutants at high temperatures.
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高影响因子
Journal of Hazardous Materials Advances
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2026
·
IF 9.1
Jiawei Li,Gaiyuan Chen,Min Chen,Zhengxin Wu,Yong Liu
Uranium (U) tailings, generated as byproducts of U mining and milling, pose significant disposal challenges owing to their large volume, radiotoxicity, and chemically heterogeneous mineral composition. Herein, we report a microwave–assisted route for preparing (1– x )Sr 0.5 Zr 2 (PO 4 ) 3 – x CePO 4 ( x = 0, 0.2, 0.4, 0.6, 0.8, 1) [strontium zirconium phosphate(SZP)–cerium phosphate(CP)] composite ceramics while incorporating real U tailings as a Si/Al–rich secondary waste component. The raw–batch U–tailing loading was 39.7–47.0 wt% for the designed compositions and 45.4 wt% for the optimized SZP–CP–0.8 batch. Compared with reagent–derived SZP–CP systems, the present work focuses on the practical utilization and stabilization of actual U tailings during ceramic waste−form preparation. The phase assemblage, microstructure, density, Vickers hardness, Ce surface valence, and 42–day PCT chemical durability were evaluated. The optimized SZP–CP–0.8 ceramic exhibited a density of 4.32 g ·cm –3 , a porosity of 0.12%, and low normalized leaching rates after 42 days, with Sr, P, and Si of approximately 10 −4 g ·m −2 ·d −1 , Ce of approximately 10 –7 g ·m –2 ·d –1 , and Zr of approximately 10 –8 g ·m –2 ·d –1 , supporting the feasibility of microwave–sintered SZP−CP composites for treatment and disposal of U tailings and simulated divalent/tetravalent radionuclides. Quantitative phase refinement, statistically representative grain–size analysis, replicate–vessel leaching uncertainty, and radionuclide–specific leaching of native trace elements from tailings are identified as future work rather than over interpreted from the present dataset.
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DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Q. Li,J. Shang
Al 2 O 3 /MoS 2 /CePO 4 composite ceramic layer was in-situ prepared on aluminum alloy by micro-arc oxidation. The results show that the content of (CH 3 CO 3 ) 3 Ce·xH 2 O has a great influence on the microstructure of the ceramic layer. When the addition amount is 7.5 g/L, the surface hardness of the ceramic layer is 961.97 HV 1 , which is 1.8 times that of the unadded and 8.36 times that of the matrix. Tribological tests show that the moderate addition of (CH 3 CO 3 ) 3 Ce·xH 2 O also significantly improves the wear resistance of the ceramic layer. Composite layer research can be developed and applied to other alloys to improve their friction properties.
研究领域:
材料科学
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表面工程
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DOI
高影响因子
ANALYST
·
2010
·Vol. 135
·期 8
·2139-2143
·
IF 3.272
Lun Wang,Cai-Ling Zhou,Hong-Qi Chen,Jing-Guo Chen,Jie Fu,Bo Ling
An efficient fluorescence energy transfer (FET) system between CePO4:Tb3+ nanocrystals as donor and 6-mercapto-5-triazole[4,3-b]-S-tetrazine as acceptor was built. CePO4:Tb3+ nanocrystals were synthesized in aqueous solutions, and characterized by transmission electron microscopy, electron diffraction pattern spectroscopy and spectrofluorometry. Under alkaline conditions, 6-mercapto-5-triazole[4,3-b]-S-tetrazine was generated by redox reaction of formaldehyde (HCHO) with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole (AHMT) at room temperature. The degree of the overlap was effective for FET between the emission spectrum of CePO4:Tb3+ and the absorption spectrum of 6-mercapto-5-triazole[4,3-b]-S-tetrazine. Based on this system, a simple and sensitive fluorescence method for the selective determination of formaldehyde in aqueous solutions was developed. Under optimal conditions, the quenched fluorescence intensity increased linearly with the concentration of HCHO ranging from 1.03 × 10−9 to 1.03 × 10−5 mg mL−1 with a correlation coefficient of 0.9976. The limit of detection was 1.65 × 10−10 mg mL−1. Compared with several methods, the proposed method had a wider linear range, higher selectivity and sensitivity. Moreover, analytical application of the method was demonstrated by water samples.
研究领域:
分析化学
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环境监测
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纳米材料
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生物传感
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分子探针
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Yiqing Zeng,Yanan Wang,Shule Zhang,Qin Zhong,Weilong Rong,Xiaohai Li
In this work, novel (CeO 2 ) x -(CePO 4 ) 1−x (defined as Ce x P 1−x ) nanorod composites were prepared by a simple co-precipitation method, and the influence of CeO 2 on the catalytic performance of CePO 4 for selective catalytic reduction of NO by NH 3 (NH 3 -SCR of NO) was investigated. The catalytic performance evaluation revealed that the Ce x P 1−x catalysts, especially Ce 0.2 P 0.8 exhibited a much better catalytic activity and H 2 O + SO 2 resistance than CePO 4 . Structure characterizations via high-resolution transmission electron microscope (HRTEM) and Brunauer-Emmett-Teller (BET) revealed that the introduction of CeO 2 had a little effect on the shape of CePO 4 nanorods and it could promote the formation of new mesoporous then significantly enhance the surface area of catalyst. The analysis results of active sites suggested that phosphorus was the main adsorption site for NH 3 and the redox sites were controlled by CeO 2 on Ce x P 1−x catalysts. Finally, reaction process study demonstrated that the NH 3 -SCR over Ce x P 1−x was processed via Langmuir-Hinshelwood (L-H) mechanism. Combining the results of active sites and reaction mechanism analysis, it was drawn that the superior low temperature activity of Ce x P 1−x could be attributed to its excellent redox properties, which promoted the oxidation of NO then facilitated the process of NH 3 -SCR via “fast SCR”.
研究领域:
材料科学
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催化化学
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产品关联
DOI
PubMed
高影响因子
Advanced Healthcare Materials
·
2023
·
IF 10
Jimin Huang,Yi Zheng,Huicong Niu,Jinzhou Huang,XinXin Zhang,Jiajie Chen,Bing Ma,Chengtie Wu,Yi Cao,Yufang Zhu
Diabetic wound is one of the chronic wounds that is difficult to heal, and effective treatment of it still confronts a great challenge. Monitoring the variation of diabetic wound microenvironment (such as hydrogen peroxide (H 2 O 2 )) can understand the wound state and guide the wound management. Herein, we developed a multifunctional hydrogel with the abilities of monitoring the H 2 O 2 concentration, alleviating oxidative stress and promoting wound healing, which was prepared by encapsulating manganese-containing bioactive glass (MnBG) and CePO 4 :Tb in biocompatible Gelatin methacryloyl (GelMA) hydrogel (CPT-MnBG-Gel). On the one hand, the H 2 O 2 -dependent fluorescence quenching effect of the CePO 4 :Tb contributed to visible monitoring of the H 2 O 2 concentration of wounds via smartphone imaging, and the CPT-MnBG-Gel hydrogel could effectively monitor the H 2 O 2 level of 10.35-200 μmol L −1 . On the other hand, MnBG could alleviate oxidative stress and promote the proliferation, migration and differentiation of fibroblasts and endothelial cells in vitro owing to the bioactive Mn and Si ions, and in vivo evaluation also demonstrated that the CPT-MnBG-Gel hydrogels could effectively accelerate wound healing. Hence, such multifunctional hydrogel is promising for diabetic wound management and accelerating wound healing. This article is protected by copyright. All rights reserved
研究领域:
材料科学
·
生物医学工程
·
伤口愈合
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生物材料
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荧光成像
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产品关联
DOI
PubMed
高影响因子
PROGRESS IN NUCLEAR ENERGY
·
2016
·
IF 1.184
Cheng Meng,Xingeng Ding,Junchuan Zhao,Wenqi Li,Chunrong Ren,Hui Yang
Monazites are of considerable interest for immobilization of minor actinides . In this work, the Gd 1-x Ce x PO 4 (0 ≤ x ≤ 1) series is synthesized via conventional solid–state reaction using Ce as the surrogate for minor actinide americium (Am), with microstructure/phase structure characterized by XRD , HRTEM, μ-Raman, and SEM as well. The optimized temperature for preparation of monazite-type Gd 0.4 Ce 0.6 PO 4 solid solution is more than 1300 °C. At 1400 °C, the GdPO 4 ceramic is essentially monazite with little metastable xenotime phase. The metastable xenotime (GdPO 4 ) to monazite transformation occurs during the immobilizing phase of Ce element. The formation of monazite-type Gd 1-x Ce x PO 4 solid solutions in the range 0.1 ≤ x ≤ 1 is confirmed by the Rietveld refinement and Raman spectra . The change of Ce content has no significant influence on the morphology of the monazite-type Gd 1-x Ce x PO 4 compounds.
研究领域:
材料科学
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核废料管理
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陶瓷
·
固体化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）