β-Bi2O3 reduction by laser irradiation in a liquid environment

被引：12

作者：

D'Angelo, D. ^{[1
]}

Filice, S. ^{[1
,2
]}

Miritello, M. ^{[3
]}

Bongiorno, C. ^{[1
]}

Fazio, E. ^{[4
]}

Neri, F. ^{[4
]}

Compagnini, G. ^{[2
]}

Scalese, S. ^{[1
]}

机构：

[1] CNR, IMM, Zona Ind Str 8 5, I-95121 Catania, Italy

[2] Univ Catania, Dipartimento Sci Chim, Viale A Doria 6, I-95125 Catania, Italy

[3] CNR, IMM, Via Santa Sofia 64, I-95123 Catania, Italy

[4] Univ Messina, Dipartimento Sci Matemat & Informat Sci Fis & Sci, Viale F Stagno dAlcontres 31, I-98166 Messina, Italy

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2018年 / 20卷 / 15期

关键词：

IN-SITU; BISMUTH OXIDE; PHOTOCATALYTIC DEGRADATION; HYDROTHERMAL SYNTHESIS; HYDROGEN GENERATION; SPHERICAL-PARTICLES; GROWTH-MECHANISM; NANOPARTICLES; BI2O3; HETEROJUNCTION;

D O I：

10.1039/c8cp00146d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study reports the structural and stoichiometric modifications of bismuth oxide nanoparticles in the phase (beta-Bi2O3) by UV pulsed laser irradiation in water or ethanol solutions. Scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis diffuse reflectance and high-resolution transmission electron microscopy were used to characterize the synthesized nanomaterials. The various analyses demonstrate that the laser irradiation of beta-Bi2O3 nanospheres is a green, fast and effective method to produce Bi2O2CO3 nanosheets or metallic Bi nanoparticles depending on the liquid environment used. Bi subcarbonate is obtained by laser irradiation in water, whereas metallic Bi is produced by laser irradiation in ethanol, and in particular the relative amount of metallic Bi is found to depend on the laser fluence. These typologies of materials find application in several fields, such as photocatalytic processes, light filters and environmental sensors.

引用

页码：10292 / 10301

页数：10

共 60 条

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