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Ag-TiO2復合納米顆粒的自組裝法制備及其光催化性
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國家自然科學基金（20974045）；江蘇省自然科學基金（BK2009385）；巢湖學院自然科學基金（XLZ-200902）


Fabrication of Ag-TiO2 Composite Nanoparticles
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    摘要:

    采用空氣-水界面自組裝法制備TiO2納米粒子，將其放入AgNO3溶液中浸泡，后在較低溫度下進行熱處理 (400 ℃)，獲得Ag-TiO2復合納米顆粒。利用X射線衍射 (XRD) 儀、掃描電鏡 (SEM)、透射電鏡 (TEM)、紫外可見光譜 (UV-Vis)等分析測試手段進行表征。結果表明：復合粒子可以顯著提高TiO2顆粒光催化活性。以甲基橙為模擬污染物，經(jīng)過光催化試驗，證實復合納米粒子具有較好的光催化活性，降解率達到96.25%。

    Abstract:

    Self-assembled TiO2-based air-water interfacial particles with nano structure were soaked into silver nitrate (AgNO3) aqueous solution and Ag-TiO2 composite nanoparticles were obtained by the heat-treatment at 400 oC. The composite nanoparticles were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and ultraviolet visible spectrum (UV-Vis). The results show that the Ag-TiO2 particles at 400 oC could significantly enhance the photocatalytic activity of the TiO2 particles. Methyl orange was used as the degradable agent in photocatalytic experiment. The results indicate that methyl orange could be degraded 96.25% by Ag-TiO2 nanoparticles under the optimal conditions. It is concluded that the Ag-TiO2 composite nanoparticles posses good photocatalysis activity.

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王 新,劉孝恒,汪 信,彭 貞,薛建躍. Ag-TiO2復合納米顆粒的自組裝法制備及其光催化性[J].稀有金屬材料與工程,2012,41(9):1661~1665.[Wang Xin, Liu Xiaoheng, Wang Xin, Peng Zhen, Xue Jianyue. Fabrication of Ag-TiO2 Composite Nanoparticles[J]. Rare Metal Materials and Engineering,2012,41(9):1661~1665.]
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  • 收稿日期:2011-09-15
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