CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Xiangyu Zhang,Chao Zhang,Yongqiang Yang,Hongyu zhang,Xiaobo Huang,Ruiqiang Hang,Xiaohong Yao
Bacterial infection is one of the serious problems during wound healing. Antibiotics and traditional antibacterial treatment can produce side effects, such as bacterial resistance, cell toxicity, during the long-term interaction with bacteria. Therefore, developing new antibacterial materials and methods for rapid and safe disinfection in wound healing is important. This work fabricated a hybrid hydrogel incorporated with Ag 3 PO 4 /MoS 2 composites for rapid sterilization during wound healing. This hydrogel exhibited a superior antibacterial activity within 5 min by co-irradiation of 660 nm visible light (VL) and 808 nm near infrared (NIR) light due to the synergistic effects of both photodynamic antibacterial and photothermal antibacterial treatments. In addition, the antibacterial hydrogel could promote the wound healing compared with the pure hydrogel and medical gauze (MG) and cause no noticeable organ abnormalities in rats during the wound healing process.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2019
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IF 6.361
Yali Zhai,Youzhi Dai,Jing Guo,Lulu Zhou,Minxing Chen,Hantong Yang,Liangping Peng
In the study, a series of novel Z-scheme biochar@CoFe 2 O 4 /Ag 3 PO 4 photocatalysts were synthesized and employed to degrade bisphenol A under visible light irradiation (λ ≥ 420 nm). The structural morphology, optical properties and physicochemical properties of composites were characterized by means of TEM , XRD , FT-IR, XPS , UV–Vis, BET, EIS and VSM analysis. The photocatalytic performances of the photocatalysts were evaluated systematically. The MBA-3 photocatalyst exhibited the highest photocatalytic and mineralization ability within 60 min among all photocatalysts, 91.12% and 80.23%, respectively. After four cycles, the degradation of BPA still kept the photocatalytic activity of 73.94%, and the removal rate of TOC remained 58.96%. Moreover, the active species in the photocatalytic process were evaluated, and we proposed the Z-scheme photocatalytic mechanism for highly efficient degradation of BPA. According to the GC-MS results, the photodegradation pathway of BPA is also suggested. The present study has provided a valuable way of using the magnetic biochar in the design of new and efficient system for the degradation of organic pollutions in waste water .
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PubMed
高影响因子
CERAMICS INTERNATIONAL
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2015
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IF 2.605
Chao Wang,Miaomiao Wu,Ming Yan,Hongqiang Shen,Fanpeng Cai,Bo Hu,Weidong Shi
Highly efficient visible-light-driven Ag 3 PO 4 /WO 3 photocatalysts with different mole fractions of Ag 3 PO 4 nanocrystals have been synthesized via an in situ precipitation method. Characterization results showed the in situ growth of finely distributed Ag 3 PO 4 nanocrystals on the surface of the WO 3 nanosheets . Under visible light irradiation, the Ag 3 PO 4 /WO 3 photocatalysts exhibited enhanced photocatalytic activity compared with bare Ag 3 PO 4 or WO 3 for the degradation of methyl blue, and the highest activity was reached by the Ag 3 PO 4 /WO 3 hybrid photocatalyst with 20 at% of Ag 3 PO 4 . The observed improvement in photocatalytic activity is associated with the extended absorption in the visible light region resulting from the attached Ag 3 PO 4 nanocrystals, and the effective separation of photo-induced carriers at the Ag 3 PO 4 /WO 3 interfaces. In addition, on the basis of the quenching effects of different scavengers and estimated energy band positions, the mechanism of enhanced photocatalytic activity is proposed.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2016
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IF 3.014
Gao-yu Zhao,Lun-jiang Liu,Jun-rong Li,Qin Liu
Novel NiFe 2 O 4 /Ag 3 PO 4 composites were prepared by a simple ion-exchange deposition method. The samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and UV–visible diffuse reflectance spectroscopy (UV–vis DRS). It is worth to note that these NiFe 2 O 4 /Ag 3 PO 4 composites could act as both adsorbents and photocatalysts for the removal of methylene blue (MB). The as-prepared 5%-NiFe 2 O 4 /Ag 3 PO 4 composite exhibited much higher adsorptive and photocatalytic activity than the pure Ag 3 PO 4 . Through the combined action of adsorption and photodegradation, MB could be removed more efficiently. The photocatalytic mechanism of NiFe 2 O 4 /Ag 3 PO 4 composites is also proposed.
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MATERIALS & DESIGN
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2017
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IF 4.364
Xiao Du,Jun Wan,Jia Jia,Chao Pan,Xiaoyun Hu,Jun Fan,Enzhou Liu
Ag 3 PO 4 -Bi 2 MoO 6 heterojunctions with visible-light photocatalytic activity were successfully fabricated via a deposition-precipitation method. The investigation shows that Ag 3 PO 4 -Bi 2 MoO 6 composites exhibit enhanced visible light harvesting ability and better degradation efficiency for RhB compared with Bi 2 MoO 6 and Ag 3 PO 4 under visible light irradiation (λ > 420 nm). What's more, we found that the activity and the stability of Ag 3 PO 4 -Bi 2 MoO 6 heterojunction could be further improved by adding of H 2 O 2 in the RhB reaction solution. The enhanced photocatalytic performance and structure stability are primarily attributed to the efficient charge carrier separation of the heterojunction formed by Ag 3 PO 4 and Bi 2 MoO 6 , and the electron capturing property of H 2 O 2 on the surface of Ag 3 PO 4 -Bi 2 MoO 6 composites, leading to a highly efficient removal of RhB using the Ag 3 PO 4 -Bi 2 MoO 6 -H 2 O 2 system. In addition, the active species trapping experiments indicate that h + and •O 2 – play important roles during the photocatalytic degradation process . This work suggests that the H 2 O 2 assisted Ag 3 PO 4 -Bi 2 MoO 6 heterojunction system could be a potential promising photocatalyst for environmental remediation.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Yang Tao,Gongduan Fan,Xin Lin,Chenjian Cai,Xingfeng Cao,Zhimin He,Jing Luo,Kai-Qin Xu
To mitigate the profound impact of Microcystis aeruginosa algal bloom outbreaks on aquatic ecosystems and human health, a piezoelectric T-BaTiO 3 /Ag 3 PO 4 -PVDF composite photocatalyst (T-BTO/AP-PVDF) was successfully synthesized in this study. The catalyst inactivated 97.12% of Microcystis aeruginosa within 4 h by the combined effect of ultrasound and sunlight, and the inactivation rate remained above 88% after five cycles of reuse, which exhibits excellent inactivation effectiveness and stability. Under the conditions of piezo-photocatalytic, the analysis of the physiological properties of algal cells showed that T-BTO/AP-PVDF produced a large amount of •OH, which were active species that could effectively inactivate the algal cells and promote the degradation of organic matter, thus preventing the occurrence of secondary pollution. The composite photocatalysts were characterized using XRD, SEM, XPS, FTIR, PFM, and WCA. Combined with the results of quenching experiments, possible mechanisms for the inactivation of Microcystis aeruginosa by T-BTO/AP-PVDF were proposed. The application results in actual water bodies further proved that T-BTO/AP-PVDF is a new method for effectively inhibiting cyanobacterial bloom outbreaks and shows promising potential for application.
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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
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IF 4.6
Mengmeng Zhang,Yi Huang,Biao Deng,Rongxiang Zhu
To increase active sites, mitigate photo corrosion, expedite electron transfer and suppress the recombination of photogenerated charge carriers, we synthesized a WO 3 @PDA/Ag 3 PO 4 ternary composites using a straightforward method, where PDA served as adhesion interface and electronic transfer bridge. The photocatalytic activity of WO 3 @PDA/Ag 3 PO 4 was assessed by degrading organic pollutants under visible light. The results demonstrated that 0.5 g/L WO 3 @PDA/Ag 3 PO 4 could eliminate 30 mg/L of methyl orange (MO) within 60 min and achieve an 80.7 % degradation rate for moxifloxacin (Mox) within 180 min. After five adsorption-photocatalytic cycles, the WO 3 @PDA/Ag 3 PO 4 maintained a removal efficiency of 95.88 % for MO and 75.56 % for Mox, showcasing its cycling stability. The photocatalytic mechanism of WO 3 @PDA/Ag 3 PO 4 was elucidated through a series of characterizations, which indicated that the Z-type heterojunction formed between WO 3 and Ag 3 PO 4 , along with PDA's electron-conducting ability, provided a strong driving force for the photocatalytic reaction. This study introduces an idea for enhancing the construction of Z-type heterojunctions with PDA as the electron-conducting interface, thereby improving photocatalytic performance.
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ChemistrySelect
·
2024
·Vol. 9
·期 35
·e202402568
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IF 1.9
Rui Zhu,Xinglong Li
Graphical A photocatalytic selective oxidation strategy for preparing DFF from HMF is developed, using Ag/Ag 3 PO 4 as the photocatalyst and O 2 as the oxidizing agent. In contrast to previous photocatalytic oxidation strategies for HMF transformation, this catalytic system could efficiently generate 1 O 2 without other ROS under visible light irradiation. DFF would be obtained with 88 % selectivity with the optimal reaction conditions. The synthesis of 2,5-diformylfuran (DFF) through photocatalytic oxidation of 5-hydroxymethylfurfural (HMF) is an attractive approach. In this manuscript, a photocatalytic selective oxidation strategy for HMF was developed, using Ag/Ag 3 PO 4 as the photocatalyst and O 2 as the oxidizing agent. The prepared catalyst was characterized systematically by SEM, XRD, XPS, UV-Vis, PL spectra, and so on. In contrast to previous photocatalytic oxidation strategies for HMF conversion, this catalytic system could efficiently generate 1 O 2 without other reactive oxygen species (ROS) under visible light irradiation. DFF would be obtained with about 90 % selectivity. Moreover, the exclusive formation of 1 O 2 was linked to the more positive conduction band potential (+0.90 eV) of Ag/Ag 3 PO 4 , confirmed by an array of characterization techniques. Additionally, the stability of the catalyst was assessed through cyclic testing and analyses including XRD, and XPS. Nonetheless, this catalytic system could potentially serve as a robust platform for various selective oxidation reactions in the future, due to its exclusive presence of 1 O 2 without the involvement of other ROS.
研究领域:
化学
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环境科学
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材料科学
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Yaxin Liu,Dongzhi Yang,Ting Xu,Yongzheng Shi,Linna Song,Zhong-Zhen Yu
Although silver phosphate (Ag 3 PO 4 ) exhibits high quantum efficiency and intriguing photocatalytic ability, its poor light stability limits its wide application. Herein, structurally stable and porous Ag/Ag 3 PO 4 /reduced graphene oxide microspheres are fabricated with electrostatic spraying, freezing, lyophilizing and crosslinking and used for the first time to remove toxic Cr(VI) ions with high efficiency and durability. Polydopamine serves as both moderate reductant and effective linker for Ag/Ag 3 PO 4 components to distribute well on reduced graphene oxide (rGO) sheets with controlled Ag/Ag 3 PO 4 ratios, endowing the porous microspheres with fast transfer of electrons and enhanced structural stability. Both the heterogeneous junctions of Ag/Ag 3 PO 4 and the conductive rGO sheets accelerate the electron transfer from Ag 3 PO 4 to Ag and rGO, decrease the recombination of electrons and holes and enhance the light stability of Ag 3 PO 4 . In addition, both the photogenerated electrons of Ag 3 PO 4 and the π electrons on rGO sheets reduce Cr(VI). The resulting porous microspheres deliver an excellent visible light photocatalytic efficiency of 0.62 mg min −1 g −1 (quantum yield of 2.37%) for reduction of Cr(VI) under the light intensity of 800 mW cm −2 , and a high removal efficiency of more than 90% of Cr(VI) over 30 h under a continuous photocatalytic removal system. These outstanding performances make the structurally stable and porous microspheres promising for continuous removal of Cr(VI) ions.
研究领域:
环境科学
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材料科学
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Materials Today Chemistry
·
2025
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IF 6.7
Bing Wang,XiangBo Feng,Yao Liu,YuZhen Zhao,Teng Du,EnZhou Liu,Zongcheng Miao,Zhuo Li
A supramolecular breakthrough in photocatalytic heterojunction design is achieved through hydrogen-bond-driven assembly of an organic–inorganic S-scheme system. Axial hydroxyl-functionalized subphthalocyanine (SubPc-5) spontaneously self-assembles into a hydrogen-bonded organic framework (HOF) via intermolecular O–H⋯O/N interactions while simultaneously anchoring onto Ag 3 PO 4 surfaces through interfacial carboxyl-oxygen hydrogen bonds, forming a structurally coherent heterojunction. Advanced characterizations combining density functional theory (DFT), synchrotron irradiation XPS (SI-XPS), and Kelvin probe force microscopy (KPFM) demonstrate this dual-level hydrogen bonding strategy creates a built-in electric field that drives directional charge separation while suppressing recombination. The resulting SubPc-5/Ag 3 PO 4 system exhibits extended visible-light absorption, prolonged carrier lifetimes and exceptional stability. These synergistic effects enable ultrahigh photocatalytic degradation efficiencies of 99.0 % for chlortetracycline and 98.5 % for ciprofloxacin within 30 min, with kinetics 4-fold faster than pristine Ag 3 PO 4 . Molecular dynamics simulations further reveal strong π-π interactions between SubPc-5 and pollutant molecules, facilitating adsorption and degradation. This work not only achieves record-performance antibiotic degradation but also establishes hydrogen-bonding as a universal strategy for constructing organic-inorganic heterostructures with precisely controlled charge-flow pathways, opening new avenues for supramolecular photocatalyst design.
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MOLECULES
·
2023
·Vol. 28
·期 6
·2647
·
IF 4.6
Peng Wang,Xu Han,Xianhong Zheng,Zongqian Wang,Changlong Li,Zhiqi Zhao
In order to improve the photocatalytic performance of g-C3N4, the g-C3N4/Ti3C2/Ag3PO4S-type heterojunction catalyst was prepared by electrostatic assembly method, and then the g-C3N4/Ti3C2/Ag3PO4/PAN composite nanofiber membrane was prepared by electrospinning technology. The morphology and chemical properties of the nanofiber membrane were characterized by SEM, FTIR, and XRD, and the photocatalytic degradation of tetracycline hydrochloride (TC) in water by the nanofiber membrane was investigated. The results showed that g-C3N4/Ti3C2/Ag3PO4could be successfully loaded on PAN and uniformly distributed on the surface of composite nanofiber membrane by electrospinning technology. Increasing the amount of loading and catalyst, lowering the pH value and TC concentration of the system were conducive to the oxidation and degradation of TC. The nano-fiber catalytic membrane had been recycled five times and found to have excellent photocatalytic stability and reusability. The study of catalytic mechanism showed that h+, •OH and •O2−were produced and participated in the oxidation degradation reaction of TC, and •O2−plays a major role in catalysis. Therefore, this work provides a new insight into the construction of high-performance and high-stability photocatalytic system by electrospinning technology.Keywords:photocatalytic;PAN nanofiber membrane;degradation;tetracycline;heterojunction
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PubMed
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MICROCHEMICAL JOURNAL
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2023
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IF 4.8
Chang Su,Chunping Dong,Ding Jiang,Xueling Shan,Zhidong Chen
Acetamiprid is a kind of broad-spectrum pesticides that has been largely applied in agriculture and household pest control. In this paper, a simple, novel and highly sensitive electrochemiluminescence aptamer sensor (ECL aptasensor) based on Ag 3 PO 4 -NH 2 -SnO 2 was proposed. The ECL signal was greatly amplified with the synergistic effect of Ag 3 PO 4 and NH 2 -SnO 2 (Ag 3 PO 4 -NH 2 -SnO 2 ) which was dropped on a glass carbon electrode (GCE) and used as working electrode. We designed an “on–off” ECL sensing strategy for the sensitive and specific detection of acetamiprid. Under the optimal conditions, the linear range of the sensor for acetamiprid detection was 1.0 × 10 −11 ∼ 1.0 × 10 −5 M, with a detection limit of 2.5 × 10 −12 M (S/N = 3). The method showed simple and fast operation, high sensitivity and selectivity, strong anti-interference ability and good stability. More importantly, the developed aptasensor exhibited excellent recognition ability towards residual acetamiprid in actual water samples, which might open promising avenues to develop new ECL systems for biological analysis and environmental water monitoring.
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