(中南大學(xué)粉末冶金國(guó)家重點(diǎn)實(shí)驗(yàn)室，長(zhǎng)沙 410083)
摘 要: 基于超聲波輔助，運(yùn)用浸漬-沉淀-光致還原法制備了活性炭負(fù)載納米Ag@AgCl材料。利用XRD、XPS、TEM、SEM及EDS對(duì)材料的結(jié)構(gòu)與形貌進(jìn)行了表征，利用紫外可見(jiàn)漫反射光譜和光催化降解實(shí)驗(yàn)對(duì)材料的光催化特性進(jìn)行了測(cè)試。結(jié)果表明：活性炭負(fù)載納米Ag@AgCl材料的物相由非晶態(tài)碳、氯化銀及金屬銀組成，其中Ag@AgCl的平均粒徑為80 nm；經(jīng)100 min光催化后，活性炭負(fù)載納米Ag@AgCl材料對(duì)MO的光催化降解率為95%，且循環(huán)降解過(guò)程中該材料具有一定的穩(wěn)定性。
關(guān)鍵字: Ag@AgCl材料；活性炭；光催化特性
（State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China）
Abstract:The deposition-precipitation-photoreduction method was used to prepare nano-Ag@AgCl loaded activated carbon material with the assistance of sonication. The structure and morphologies of the material were characterized by XRD, XPS, TEM, SEM and EDS, while the photocatalytic properties were characterized by UV-Vis-DRS and degradation of MO. The results show that the material is composed of amorphous carbon, silver chloride and metallic silver. The average diameter of Ag@AgCl nanoparticles is 80 nm. After photocatalytic for 100 min, the removal efficiency of Ag@AgCl-AC is 95%. And recycling test results show that Ag@AgCl-AC has relative stability.
Key words: Ag@AgCl material; activated carbon; photocatalytic properties
