JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2021
·Vol. 32
·期 18
·23189-23205
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IF 2.478
Chen Piao,Zhang Zhi,Yang Shuijin,Yang Yun,Sun Yong
In this study, a novel oxygen vacancy-rich BiOCl/ZnMoO 4 composites were successfully prepared by a simple two-step method. Experimental results indicated that the content of BiOCl with oxygen vacancies played an important role in photocatalytic performance of OBZM heterostructures. OBZM-5 exhibited a highly enhanced photocatalytic activity under visible light irradiation compared to pure BiOCl, Ov-BiOCl, ZnMoO 4 and other OBZM composites, which can be attributed to the efficient separation and transfer of photogenerated charge carrier. The photocatalytic degradation efficiency of rhodamine B (RhB) can reach 99% within 40 min and almost all of norfloxacin (NOR) can be degradated after 100 min by OBZM-5. In addition, OBZM-5 displayed a good stability during the photocatalytic process, which favored a long-term use. Moreover, a possible photocatalytic mechanism was proposed based on the active species trapping experiments and electron spin resonance (ESR) tests, verifying that the photogenerated holes (h + ) and · O 2 − radicals were the dominating active species.
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
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2018
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IF 2.88
Yichen Jin,Tao Pang
Upconversion luminescence and optical temperature sensing properties of Yb 3+ /Er 3+ /Li + tri-doped ZnMoO 4 phosphors were investigated. It has been demonstrated that Li + doping affected not only the local symmetry of Yb 3+ and Er 3+ but also the distribution of them in the host lattice. As a result, the significantly improved green upconversion luminescence was obtained when excited at 980 nm. The pumping power dependent photo-thermal behavior was used to evaluate the reliability of upconversion temperature sensing. An accurate temperature scale was established by eliminating the impact of thermal effect, and the sensing ability was evaluated via a comparison with the results reported in literatures.
研究领域:
材料科学
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光学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2019
·Vol. 30
·期 20
·19069-19076
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IF 2.195
Yan Qishe,Wang Peiying,Guo Yuan,Chen Yongyang,Si Yushan,Zhang Menghan
The series of novel visible-light-driven ZnMoO 4 /BiOI heterojunctions were successfully fabricated via in situ solvothermal directly growth of BiOI on the surface of ZnMoO 4 plate-like, and the ratio of composite was optimized by increasing of ZnMoO 4 loading. The phase, morphology and optical characteristics of obtained ZnMoO 4 /BiOI heterojunctions were systematically characterized using several analytical measures. The photocatalytic performance was assessed by degrading tetracycline (TC) under visible light irradiation. The results showed that the 30 wt% ZnMoO 4 /BiOI (ZB-30) composite exhibited highest photocatalytic performance than others. The enhanced photocatalytic efficiency could be attributed to the appropriate band gap of composites, strong visible light response, the formation of heterojunctions with close interface contact and generation and separation of photoinduced carriers. The trapping experiments indicated that · O 2 − , h + and · OH radicals played distinct parts in the photodegradation process, and · O 2 − radicals was the dominant specie. In addition, a probable photocatalytic mechanism of the fabricated composites was also put forward.
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
CRYSTENGCOMM
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2024
·Vol. 26
·期 39
·5591-5598
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IF 2.6
Piyu Gong,Mengwen Hu,Yihao Zheng,Shuo Tao,Haibo Li,Suyuan Zeng,Lei Wang
Owing to the synergistic effect between two metals and a high oxidation state, β-ZnMoO4 shows a high theoretical specific capacity and acts as one active material for the design and construction of lithium-ion batteries. In this paper, β-ZnMoO4 structures were formed by one hydrothermal process and characterized with XRD, SEM, Raman and XPS. The electrochemical performance tests demonstrate their excellent lithium storage capacity and cycling stability. At a current density of 2.0 A g−1, the reversible capacities of two formed β-ZnMoO4 microstructures were maintained at 665.5 and 704.6 mA h g−1 after 500 cycles. These characteristics prove that β-ZnMoO4 structures show interesting application prospects in portable energy storage devices.
研究领域:
材料科学
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电化学
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能源存储
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产品关联
DOI
高影响因子
RSC Advances
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2019
·Vol. 9
·期 60
·35189-35196
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IF 3.049
Yi-Wei Cui,Hai-Huan Zhang,Shi-Yong Yu
Efficient C–ZnS/ZnMoO4@MoS2 and C–ZnS/MoS2 nanocomposite photocatalysts, using ZIF-8 derived C–ZnO as a precursor were successfully synthesized using a simple one-pot procedure. This is the first application that involves transforming ZIF-8 into C–ZnMoO4 for photocatalysis. The C–ZnS/ZnMoO4@MoS2 and C–ZnS/MoS2 heterostructures were characterized by X-ray diffraction, UV-vis, X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy, photocurrent measurements, scanning electron microscopy and transmission electron microscopy. The ZM2 sample of C–ZnS/ZnMoO4@MoS2 exhibited enhanced photocatalytic activity of about 2.9 times as high as that of ZIF-8 derived C–ZnO in the reduction of tetracycline hydrochloride, and also showed obvious photocatalytic activity 1.81 and 3.33 times as high as that of a ZM3 sample of C–ZnS/MoS2 and ZIF-8 derived C–ZnO in the degradation of RhB, respectively. The improved photodegradation activity is a result of the heterogenous structure and the tighter contact between C–ZnS and C–ZnMoO4 compared with the physical contact of general heterogenous photocatalysts. The C–ZnS/ZnMoO4@MoS2 heterostructure photocatalyst is expected to be a new type of nanomaterial for the degradation of pollutants from wastewater.
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
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2022
·
IF 9.221
Li Chen,Liu-Xin Cai,Jing Geng,Chen-Chen Liu,Yue Wang,Zheng Guo
One-dimensional (1D) semiconductor composite nanofibers (NFs) with large specific surface areas , high length-to-diameter ratios, and abundant interfacial active sites have received widespread attention. In this work, a rationally designed 1D composite NFs architecture for detecting acetone is synthesized via a two-step process based on electrospinning followed by a thermal oxidation method. Utilizing the polyoxometalate (POM) as a molecular platform with high negative charges to combine transition metal ions precursors, highly dispersed ZnMoO 4 can be in situ grown on the ZnO. By adjusting the content of POM (H 3 PMo 12 O 40 , denoted as PMo 12 ) in the precursor solution , we can obtain a series of ZnMoO 4 decorated ZnO NFs (ZnMoO 4 -ZnO NFs). Compared with the pristine ZnO NFs, the ZnMoO 4 -ZnO NFs sensor exhibited excellent sensing characteristics over a wide range of acetone concentrations (50 ppb-50 ppm), such as high sensitivity , relatively low detection concentration, and high selectivity . The primary mechanism for the improved acetone gas sensing properties of the ZnMoO 4 -ZnO NFs could be ascribed to the available charge transfer and unique structure within ZnMoO 4 -ZnO NFs.
研究领域:
材料科学
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纳米科技
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传感器技术
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半导体物理
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环境监测
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2026
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IF 2.5
Yu Wang,Rong Zhong,Chirstopher Bassanyin,Jiake Li,Hedong Jiang,Xin Liu,Ziyi Chen,Pingchun Guo,Hua Zhu,Yanxiang Wang
In this study, a photorechargeable supercapacitor was prepared with ZnMoO4, Zn(CF3SO3)2 and reduced graphene oxide hydrogel (rGH) as the photoanode, electrolyte and cathode, respectively. The microstructure, phase composition, light absorbance, specific surface area and chemical structure of products and the photoelectrochemical performance of supercapacitors were characterized using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), ultraviolet-visible (UV-vis) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and electrochemical workstation. The ZnMoO4//rGH supercapacitor exhibited a high specific capacity of 156.09 F g−1 under photoelectric synergistic charging (namely, a light intensity of 95 mW cm−2 and a current density of 0.5 A g−1), which increased by 35.66% relative to that of only electric charging. Meanwhile, the capacity retention and coulombic efficiency rates of the device are 137% and 100%, respectively, under photoelectric synergistic charging and discharging for 10 000 cycles. This suggests that the ZnMoO4//rGH photorechargeable supercapacitor exhibits excellent stability and shows applications in the wearable electronic industry.
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DOI
高影响因子
ACS Applied Nano Materials
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2024
·
IF 5.3
Yuan Ma,Tong Li,Si-Rui Zhao,Zhou-Tao Feng,Jin-Ku Liu
This study enhanced the corrosion protection of zinc molybdate (ZnMoO4) in epoxy coatings by integrating ZIF-8 to form a Z-type nano heterojunction. The heterojunction leveraged the light absorption properties of organic ligands within ZIF-8 to significantly promote the excitation and separation efficiency of photogenerated carriers, thereby enhancing the photocathodic protection capability of the coating. It also utilized a cocrosslinking curing process between the epoxy functional groups and the organic functional groups of ZIF-8, resulting in a notable improvement in coating density. Furthermore, the metal–organic framework (MOF) effectively anchored the coating, preventing the recurrence of defects due to molybdate dissolution, thus enhancing durability. In synergy with the molybdate passivation film, it effectively hindered the corrosive attack of ions adsorbed on the metal substrate surface, thereby contributing to the suppression of chemical corrosion. Meanwhile, the compositing of MOF significantly enhanced the hydrophobicity of the material. Experimental data demonstrated that the impedance of the ZIF-8/ZnMoO4 composite coating achieved a remarkable increase to 226.0 and 208.3% compared to pure epoxy and ZnMoO4 coatings, which provided insights into expanding the compatibility and synergistic protective performance of molybdate-based corrosion-resistant materials by constructing heterojunctions between organic and inorganic materials.
研究领域:
材料科学
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腐蚀防护
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表面工程
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2024
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IF 8
Weining Liu,Hairong Li,Dandan Huang,Xi Tan,Mingyang Zhao,Qionglin Cheng,Ming Yi,Qi Ding,Yaqian Ren,Guohan Liu
Triethylamine (TEA) poses severe safety hazards to industrial production and human health. To accurately detect TEA concentrations and rapidly warn of leakage, a simple reflux condensation method was deployed to successfully incorporate Zn 2+ in situ into Mo-MOFs precursor in a green, safe, and time-efficient synthesis condition. Subsequently, through calcination, MoO 3 /ZnMoO 4 -X (MMZ-X) were prepared, which exhibited an increased number of defects and enriched porosity, facilitating the access and interaction of TEA with adsorption sites. Simultaneously, rationally built in situ MoO 3 /ZnMoO 4 heterostructures accelerated carrier migration and induced a drastic resistive change. MMZ-2 demonstrated outstanding TEA sensing performance, exhibiting extremely high sensitivity ( R = 572.3, 100 ppm), along with superior selectivity, repeatability and stability, rapid response and recovery times, and a low detection limit. Moreover, the key intrinsic parameters of the heterostructure on the atomic scale were determined by density functional theory (DFT) calculations, providing a detailed elucidation of the sensing enhancement mechanism of the MoO 3 /ZnMoO 4 heterostructure. The simple and efficient synthesis method and the related mechanistic analysis pave a new path for designing high-performance TEA gas sensors with practical applications.
研究领域:
材料科学
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化学传感器
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环境监测
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产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2022
·Vol. 25
·期 3
·1056-1066
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IF 11.034
Fengan Han,Yanting Liu,Guangyi Li,Lin Yuan,Aiqin Wang,Feng Wang,Tao Zhang,Ning Li
Selective hydrodeoxygenation (HDO) of lignocellulose-derived ketones to olefins is a promising method for upgrading lignocellulosic biomass-derived molecules. Herein, zinc molybdate (ZnMoO4–E) with a disordered layered stacking structure was first prepared using a facile and environmentally friendly evaporation method and it exhibited outstanding catalytic performance for the selective HDO of lignocellulose-derived ketones to olefins. Using it, 4-heptanone, a representative of lignocellulose-derived ketones, was totally converted, and a high carbon yield of heptene (90%) was achieved at 673 K. On the basis of the characterization results, the outstanding catalytic performance of ZnMoO4–E was attributed to its porous structure, higher oxygen vacancy (or the Mo5+ species) concentration and higher acidity. Analogously, ZnMoO4–E also exhibited good catalytic performances for the selective HDO of other lignocellulose-derived ketones (such as acetone, butanone, 2-pentanone, 3-pentanone, cyclohexanone, acetophenone and 5-nonanone) to their corresponding olefins.
研究领域:
催化
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化学工程
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材料科学
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）