Synthesis of Au decorated V2O5 microflowers with enhanced sensing properties towards amines
Yan S., Wang W., Wang C., Xie H., Fu H., An X., Jiang X., Yu A.
Powder Technology
Vol.339, P. 408-418
Опубликовано: 2018
Тип ресурса: Статья
DOI:10.1016/j.powtec.2018.08.024
Аннотация:
This study developed an innovative two-step method to synthesize hybrid gold decorated nanosheet-assembled V2O5 microflowers (Au/V2O5), through in-situ reduction of Au nanoparticles on nanosheet-assembled V2O3 microflowers at room temperature in aqueous solution and further thermal oxidization as V2O5. Various characterization techniques were employed, such as SEM, TEM, XRD, EDX, XPS, and BET, to reveal that Au nanoparticles (diameter of ~10 nm) evenly attached on the surface of nanosheet-assembled V2O5 nanoparticles (diameters of ~1–2 μm). This method shows several advantages in generating such nanocomposites: low cost, highly efficient, room-temperature and easy operation, as well as no need for extra reducing agents and surfactants. The gas sensing properties of the Au/V2O5 composites were investigated toward toxic 1-butylamine, an important marker compound in food and medical industries, showing that the Au modification can effectively enhance the sensing performance: high response
Ключевые слова:
Au nanoparticles; Au-decorated V2O5 microflowers; Gas sensing; Nanosheet assembled microflowers; Organic amine
Amines; Chemical detection; Gas detectors; Ionic liquids; Nanoparticles; Nanosheets; Precious metals; Reducing agents; Solutions; Synthesis (chemical); Vanadium pentoxide; Characterization techniques; Gas sensing; Gas sensing properties; Microflowers; Organic amine; Sensing performance; Thermal oxidization; Working temperatures; Gold nanoparticles; amine; butylamine; gold; gold nanoparticle; metal oxide; nanocomposite; nanosheet; reducing agent; surfactant; unclassified drug; vanadium oxide; analytic method; aqueous solution; Article; Brunauser Emmett Teller; chemical analysis; chemical modification; energy dispersive X ray spectroscopy; food industry; low temperature; particle size; room temperature; scanning electron microscopy; surface area; surface property; synthesis; transmission electron microscopy; X ray diffraction; X ray photoemission spectroscopy
Язык текста: Английский
ISSN: 1873-328X
Yan S. Syaokhun 1984-
Wang W.
Wang C.
Xie H.
Fu H.
An X.
Jiang X.
Yu A.
Ян С. Сяохун 1984-
Wанг W.
Wанг C.
Хие Х.
Фу Х.
Ан Х.
Йианг Х.
А.
Synthesis of Au decorated V2O5 microflowers with enhanced sensing properties towards amines
Текст визуальный непосредственный
Powder Technology
Elsevier Science Publisher B.V.
Vol.339 P. 408-418
2018
Статья
Au nanoparticles Au-decorated V2O5 microflowers Gas sensing Nanosheet assembled microflowers Organic amine
Amines Chemical detection Gas detectors Ionic liquids Nanoparticles Nanosheets Precious metals Reducing agents Solutions Synthesis (chemical) Vanadium pentoxide Characterization techniques Gas sensing Gas sensing properties Microflowers Organic amine Sensing performance Thermal oxidization Working temperatures Gold nanoparticles amine butylamine gold gold nanoparticle metal oxide nanocomposite nanosheet reducing agent surfactant unclassified drug vanadium oxide analytic method aqueous solution Article Brunauser Emmett Teller chemical analysis chemical modification energy dispersive X ray spectroscopy food industry low temperature particle size room temperature scanning electron microscopy surface area surface property synthesis transmission electron microscopy X ray diffraction X ray photoemission spectroscopy
This study developed an innovative two-step method to synthesize hybrid gold decorated nanosheet-assembled V2O5 microflowers (Au/V2O5), through in-situ reduction of Au nanoparticles on nanosheet-assembled V2O3 microflowers at room temperature in aqueous solution and further thermal oxidization as V2O5. Various characterization techniques were employed, such as SEM, TEM, XRD, EDX, XPS, and BET, to reveal that Au nanoparticles (diameter of ~10 nm) evenly attached on the surface of nanosheet-assembled V2O5 nanoparticles (diameters of ~1–2 μm). This method shows several advantages in generating such nanocomposites: low cost, highly efficient, room-temperature and easy operation, as well as no need for extra reducing agents and surfactants. The gas sensing properties of the Au/V2O5 composites were investigated toward toxic 1-butylamine, an important marker compound in food and medical industries, showing that the Au modification can effectively enhance the sensing performance: high response