MATERIALS TECHNOLOGY
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2018
·
IF 1.232
Jie Yang,Hairong Chu,Mingxin Zhu,Haiqin Zhou,Yanhua Xu
In order to solve the disadvantages of most of the photocatalyst, ZnFe2O4 is chosen as the magnetic material and prepared ZnFe2O4/Ag3PO4 composite photocatalysts. ZnFe2O4 is prepared by hydrothermal method, the ZnFe2O4/Ag3PO4 is prepared by precipitation method, which supported Ag3PO4 on the surface of ZnFe2O4. The synthesis method of ZnFe2O4/Ag3PO4 not only simplifies the preparation process, but also improves the photocatalytic activity by suppressing the electron-hole recombination. These methods have important significance for the function alization and stability of photocatalytic materials. Moreover, the ZnFe2O4/Ag3PO4 is characterised by a series of testing means, such as SEM, XRD and EDS, etc. At the same time, this work realizes the effective control of environmental pollutants and lay the foundation for the research of organic pollution remove.
研究领域:
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
Nano Research
·
2014
·Vol. 8
·期 1
·106-116
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IF 6.963
Pang Fei,Liu Xueteng,He Mingyuan,Ge Jianping
Cluster-like Ag 3 PO 4 nanostructures including nanoparticles, trisoctahedrons, tetrahedrons and tetrapods have been prepared by the synergetic reaction of Ag nanocrystals, phosphate anions and hydrogen peroxide. The acidity and alkalinity of the reaction solution are tuned to adjust the oxidizing ability of H 2 O 2 , and thus control the final morphology. Ag nanocrystals function as a sacrificial precursor, leading to the generation of cluster-like nanostructures. Through a kinetic study, the formation of Ag 3 PO 4 nanocrystal clusters can be understood as the conversion from Ag to Ag 3 PO 4 nanocrystals assisted by H 2 O 2 , followed by the oriented attachment of nanocrystals into cluster-like colloids with specific shapes. The as-prepared Ag 3 PO 4 nanostructures have higher photocatalytic activity than commercial TiO 2 and some reported Ag 3 PO 4 microcrystals in the degradation of dyes. The catalytic activity decreases in the order nanoparticles > trisoctahedrons > tetrahedrons > tetrapods, while the stability increases in the order nanoparticles < tetrahedrons < trisoctahedrons < tetrapods, which can be explained by the extent of absorption of visible light and structural factors, including size and exposed crystal facets.
研究领域:
材料科学
·
化学
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产品关联
DOI
高影响因子
Materials
·
2025
·Vol. 18
·期 11
·2544
·
IF 3.2
Qingyang Zhou,Zhuluni Fang,Junyi Wang,Wenbo Zhang,Yihan Liu,Miao Yu,Zhuo Ma,Yunfeng Qiu,Shaoqin Liu
Food spoilage caused by microbial contamination remains a global challenge, driving demand for sustainable antibacterial packaging. Conventional photocatalytic materials suffer from limited spectral response, rapid charge recombination, and insufficient reactive oxygen species (ROS) generation under visible light. Here, a Z-scheme heterojunction was constructed by coupling zeolitic imidazolate framework-8 (ZIF-8) with Ag 3 PO 4 , achieving dual-spectral absorption and spatial charge separation. The directional electron transfer from Ag 3 PO 4 ’s conduction band to ZIF-8 effectively suppresses electron-hole recombination, prolonging carrier lifetimes and amplifying ROS production (·O 2 − /·OH). Synergy with Ag + release further enhances bactericidal efficacy. Incorporated into a cellulose acetate matrix (CAM), the ZIF-8/Ag 3 PO 4 /CAM film demonstrates 99.06% antibacterial efficiency against meat surface microbiota under simulated sunlight, alongside high transparency. This study proposes a Z-scheme heterojunction strategy to maximize ROS generation efficiency and demonstrates a scalable fabrication approach for active food packaging materials, effectively targeting microbial contamination control and shelf-life prolongation.
研究领域:
材料科学
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食品科学
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微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NANO
·
2019
·
IF 1.293
Fei Li,Guang Zhang,Yinghua Song
A simple hydrothermal conversion method for the preparation of Ag 3 PO 4 /SnO 2 composite photocatalyst has been developed. The morphological properties of the nanocomposites are studied using transmission electron microscopy (TEM), energy dispersive spectrometer (EDS), X-ray powder diffraction (XRD) and other methods. Different properties of catalysts are prepared by adjusting the temperature of hydrothermal reaction and the volume ratio. The prepared photocatalyst is tested by degradation of tetracycline solution under visible light show that the degradation rate of tetracycline can reach 74% when the initial [Ag 3 PO 4 ]/[SnO 2 ] molar ratio is 15 and the temperature is 140 ∘ C. Moreover, by constructing Ag 3 PO 4 /SnO 2 composite structure, the impedance and photocurrent of material are enhanced significantly according to the electrochemical characterization.
研究领域:
环境科学
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2022
·Vol. 33
·期 20
·16077-16098
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IF 2.779
Chen Keke,Feng Hange,Li Lingwei,Luo Menghao,Xue Shaolin,Sang Jingxin
The excellent photoresponse of semiconductors enables them as a promising photocatalyst for photocatalytic degradation of organic pollutants and antibiotics, but their practical applications are limited by photogenerated carrier recombination, instability, and fixed energy band positions. Herein, we designed and synthesized a dual Z-scheme flower-like spherical Ag 3 PO 4 /MoS 2 /g-C 3 N 4 (AMN) photocatalyst loaded with different mass of g-C 3 N 4 (3, 5 and 7 mg). Under visible light irradiation, MoS 2 enhanced the light absorption range of AMN composite. The holes concentrated in the valence band of Ag 3 PO 4 provide strong oxidation capacity, and the electrons retained in conduction band of g-C 3 N 4 provide strong reduction ability in the photocatalytic system. It is helpful to improve the separation efficiency of photogenerated carriers and enhance the photocatalytic activity of AMN composite. The AMN photocatalyst loaded with 5 mg g-C 3 N 4 (AMN-5) has the optimal photocatalytic activity. The photocatalytic degradation efficiency of the photocatalyst for methylene blue (MB) within 24 min is 3.98, 1.85, and 1.17 times that of g-C 3 N 4 , Ag 3 PO 4 , and Ag 3 PO 4 /MoS 2 , respectively. After three cycles, the degradation efficiency of AMN-5 for MB decreased from 99.44% to 90%, about 3.79 times of Ag 3 PO 4 (23.77%). In addition, the optimal AMN-5 photocatalyst also has excellent photocatalytic degradation efficiency for Rhodamine B (RhB) and tetracycline (TC). This design and concept provide a promising insight for the photocatalytic degradation of pollutants.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2017
·
IF 2.059
Chunyan Chi,Jiaqi Pan,Mingzhu You,Zongjun Dong,Weijie Zhao,Changsheng Song,Yingying Zheng,Chaorong Li
The porous TiO 2 nanotubes/Ag 3 PO 4 heterojunction are synthesized via simple electrospining and chemical co-deposition method. The results of SEM, XRD , TEM and XPS imply that the Ag 3 PO 4 nanoparticles have been introduced on to the surface of TiO 2 nanotubes successfully. Compared with the unmodified samples, the photocatalytic activity of the as-prepared porous TiO 2 nanotubes/Ag 3 PO 4 heterojunction exhibit a remarkable enhancement by the degradation of methylene blue (MB) under the sunlight. Further, the Z-Scheme structure of the samples and the porous-tubular structure of the TiO 2 are considered as the main reasons for the enhancement.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2015
·
IF 4.529
Yaling Li,Hangyu Zhou,Genxing Zhu,Changyu Shao,Haihua Pan,Xurong Xu,Ruikang Tang
Organic, inorganic, and biological pollutants are typical water contaminants and they seriously affect water quality. In this study, we suggested that a novel multifunctional Ag 3 PO 4 loaded hydroxyapatite (HAP) material can remove the typical pollutants from water. The Ag 3 PO 4 /HAP composites were synthesized facilely via in-situ precipitation of Ag 3 PO 4 on the pre-existing HAP nanowires. By optimizing the composition of Ag 3 PO 4 and HAP, the material could achieve an optimal photocatalytic activity to decompose rhodamine B (RhB), methyl orange (MO) and methylene blue (MB) under visible light irradiations with enhanced pH stability. Besides, the adsorption of Pb(II) on the Ag 3 PO 4 /HAP reached a maximum capacity of 250 mg/g and this value was approximately three times as that of pure HAP. Furthermore, the composite material exhibited excellent antibacterial activities towards gram-negative bacterium ( Escherichia coli ) and gram-positive bacterium ( Stphylococcus aureus ). The results highlighted the cooperative effect between Ag 3 PO 4 and hydroxyapatite (HAP). The simultaneous removals of dyes, toxic metal ions, and bacteria with a high efficiency followed an easy approach for the purification of contaminated water via the rationally designed material, in which the Ag 3 PO 4 /HAP composite might be developed as a general water treatment material with multiple functions.
研究领域:
环境科学
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材料科学
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
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2015
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IF 3
Xia Cui,Yi Fan Zheng,Huan Zhou,Hao Yong Yin,Xu Chun Song
In this study, the Ag 3 PO 4 microcrystal was successfully prepared at different temperatures using precipitation and hydrothermal methods. The as-prepared products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), UV–vis diffuse reflectance spectroscopy (UV–vis DRS) and so on. It was found that the synthesized temperature had some effects on the morphologies and photocurrent of Ag 3 PO 4 . As the synthesized temperature increased from 20 °C to 120 °C, the ratio of exposed (110) facets increased, which are the active photocatalysis facets in Ag 3 PO 4 crystals, along with a higher photocatalytic efficiency over RhB under visible light irradiation. And the Ag 3 PO 4 microcrystals synthesized at 120 °C exhibited the highest photocatalytic activities with the degradation ratio of RhB rising up to 97.83% in 6 min due to the high separation efficiency of electron and hole pairs. In addition, the main active species and their roles were investigated by adding scavengers (isopropyl alcohol and EDTA) during the photocatalytic degradation of RhB and a possible mechanism was discussed.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2017
·Vol. 28
·期 22
·16696-16703
·
IF 2.019
Yan Qishe,Xie Xin,Lin Cuiping,Zhao Yalei,Wang Shenbo,Liu Yonggang
The nano-scale Ag 3 PO 4 was successfully synthesized by the silver ammonia complexing precipitation method at room temperature. And the Graphene oxide (GO)/Ag 3 PO 4 nanocomposites with different contents of GO were successfully synthesized using the electrostatic driving method. The as-prepared GO/Ag 3 PO 4 nanocomposites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV–visible diffuse reflectance spectroscopy (UV–Vis DRS), confirming that Ag 3 PO 4 were highly dispersed to GO sheet. The photocatalytic properties of GO/Ag 3 PO 4 were evaluated by the degradation of Methyl Orange (MO) under visible light irradiation and solar irradiation respectively. The results showed that the photocatalytic efficiencies of GO/Ag 3 PO 4 nanocomposites had enhanced largely and the kinetics reaction models were followed first-order. Furthermore, 5% GO/Ag 3 PO 4 exhibited the highest photocatalytic activity on degradation of MO under visible-light irradiation. The improved photocatalytic performances of the GO/Ag 3 PO 4 nanocomposites mainly attributed to the introducing of GO, which benefit for electron transfer and inhibit the recombination of electron–hole pairs, promoting the practical application of Ag 3 PO 4 in water purification.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2016
·
IF 8.328
Yang Li,Peifu Wang,Cunping Huang,Weifeng Yao,Qiang Wu,Qunjie Xu
Despite high activity for photocatalytic degradation of organic dyes from water, nanoscale Ag 3 PO 4 photocatalyst particles are difficult to synthesize. As reported in literature, Ag 3 PO 4 particle sizes for photocatalytic degradation of water pollutants are normally larger than 100 nm. This research reports a facile and reproducible method for the synthesis of the ultrafine and uniform Ag 3 PO 4 nanoparticles loaded on the oxygen vacated TiO 2 (TiO 2 -OV) with average particle size as small as 2.6 nm. All obtained Ag 3 PO 4 particles can be completely loaded onto TiO 2 -OV support to form Ag 3 PO 4 /TiO 2 -OV composite photocatalysts. The prepared Ag 3 PO 4 /TiO 2 -OV photocatalyst exhibits much higher visible light photocatalytic activity than those of pure Ag 3 PO 4 or Ag 3 PO 4 /TiO 2 photocatalysts for the degradation of rhodamine b (Rh B) and phenol in water. After depositing thin layers of AgI on Ag 3 PO 4 ultrafine Ag 3 PO 4 nanoparticles, the new AgI-Ag 3 PO 4 /TiO 2 -OV composite photocatalysts not only show much higher photocatalytic activity, but they are also more stable than pure Ag 3 PO 4 catalyst. This new synthesis method will provide guidelines for the preparation of ultrafine nanoparticles and highly active photocatalysts for treatment of water pollution or production of hydrogen from water splitting/reducing.
研究领域:
环境科学
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材料科学
·
化学工程
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS RESEARCH
·
2023
·
IF 2.7
Liu Junli,Liu Jin,Cheng Wenxia,Yi Yunxiao,Shen Jiahao,Zhang Hua,Li Junqi,Liu Hui,Bao Yan,Hui Aiping
Bacterial contamination has bloomed into a vitality-threatening problem that plagues people. In this work, a fast and remarkable bactericidal material is developed from cerium-doped molybdenum disulfide (Ce-MoS 2 ) and silver phosphate (Ag 3 PO 4 ). The minimum inhibitory concentration (MIC) of Ce-MoS 2 /Ag 3 PO 4 nanocomposites against S. aureus was 1.12 mg mL −1 , and the antibacterial rate reached to 95.3%, in comparison with 35% of pure MoS 2 . The excellent antibacterial activities of Ce-MoS 2 /Ag 3 PO 4 could be attributed to the doping of Ce and the generation of heterojunction assisted by Ce 3+ /Ce 4+ redox mediators between MoS 2 and Ag 3 PO 4 which boost the separation efficiency of electron–hole pairs and the formation of hydroxyl radical (·OH), superoxide anion (·O 2 − ). Furthermore, TMB colorimetric assay showed that the Ce-MoS 2 /Ag 3 PO 4 possesses enhanced POD-like catalytic activity, which could constantly catalyze the production of ·OH from H 2 O 2 to kill bacteria. The outcomes of the current study emphasize the importance of the Ce-MoS 2 /Ag 3 PO 4 as a novel antimicrobial material. Graphical abstract
研究领域:
材料科学
·
微生物学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL PHYSICS LETTERS
·
2020
·
IF 2.029
Ruihao Jin,Zhixuan Qiu,Wen Cheng,Xinglong Jin
Aniline is recalcitrant pollutant and its efficient and cost-effective removal is greatly needed. According to the existing methods in the laboratory, Fe 3 O 4 @SiO 2 @BiO 1.8 ·0.04H 2 O/Ag 3 PO 4 (FSBAP) magnetic nanocomposites were prepared and the photocatalytic properties were also evaluated with aniline as model pollutant. The experimental data suggested that the nanocomposites FSBAP could effectively degrade organic pollutants under visible light. The degradation rate of 250 mL aniline solution (10 mg/L) with 1.20 g/L FSBAP catalyst was 88.06% under visible light for 150 min. FSBAP nanocomposites showed good reusability and recyclability after five runs. In addition, scavengers trapping experiments proved that photogenerated holes (h + ) played an important role in photocatalytic reaction. The possible mechanism was also proposed. The results revealed that FSBAP exhibited high reusability and stability in degrading aniline.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
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