Citation: CHEN Fan-Yun, ZHANG Meng-Di, MA Xiao-Shai, LI Jia-De, YU Chang-Lin. Influence of Pt Deposition on Physicochemical Property and Photocatalytic Performance of Ag₂CO₃ Crystals[J]. Chinese Journal of Inorganic Chemistry, ;2019, 35(6): 1034-1040. doi: 10.11862/CJIC.2019.115 shu

Influence of Pt Deposition on Physicochemical Property and Photocatalytic Performance of Ag₂CO₃ Crystals

1.
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
2.
Faculty of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China

Corresponding author: YU Chang-Lin, yuchanglinjx@163.com
Received Date: 11 January 2019
Revised Date: 21 March 2019

Figures(10)

A series of Pt-Ag₂CO₃ composite photocatalysts were synthesized via NaBH₄ reduction method. Pt deposition effects on photocatalytic performance of Ag₂CO₃ were evaluated by photocatalytic degradation of methyl orange under visible light irradiation. The influence of Pt deposition on the physicochemical properties of Ag₂CO₃ crystal were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), Fourier translation infrared spectroscopy (FT-IR), photoluminescence (PL) emission spectroscopy, and UV-Vis diffuse reflectance spectra (UV-Vis DRS), photocurrent (PC), and N₂ physical adsorption. The results show that deposition of 0.1%~0.5% (w/w) concentration of Pt brought about 3 times photocatalytic activity of the Ag₂CO₃ and the stability was largely promoted. The presence of Pt brings about the strong visible light absorption and the increase of surface area and amount of -OH groups. Besides, the presence of Pt deposited on Ag₂CO₃ can retard fast charge-pair recombination by serving as an electron sink to facilitate the separation of photogenerated electrons (e^-) and holes (h⁺). Therefore, more e^- and h⁺ are available for production more radicals to decompose the organic dyes. The fast transfer rate of electrons can also reduce the photoreduction (Ag⁺+e → Ag) and increase the ability of Ag₂CO₃ to resist the photocorrosion.
- Pt deposition,
- Ag₂CO₃,
- photocatalytic activity,
- stability,
- photocorrosion
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Influence of Pt Deposition on Physicochemical Property and Photocatalytic Performance of Ag2CO3 Crystals

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通讯作者: 陈斌, bchen63@163.com

Influence of Pt Deposition on Physicochemical Property and Photocatalytic Performance of Ag₂CO₃ Crystals