Adsorptive and photocatalytic properties of Ag-loaded BiVO4 on the degradation of 4-n-alkylphenols under visible light irradiation
Adsorptive and photocatalytic properties of Ag-loaded BiVO4 on the degradation of 4-n-alkylphenols under visible light irradiation
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DOI：
10.1016/j.catcom.2004.12.006
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发表时间：
2005-03
影响因子：
3.7
通讯作者：
Shigeru Kohtani;Junpei Hiro;N. Yamamoto;A. Kudo;K. Tokumura;R. Nakagaki
中科院分区：
文献类型：
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作者：
Shigeru Kohtani;Junpei Hiro;N. Yamamoto;A. Kudo;K. Tokumura;R. Nakagaki
采用浸渍法制备的BiVO4光催化剂上负载的银粒子显著提高了对4-正辛基苯酚(OP)和4-正辛基苯酚(NP)等长链烷基酚的吸附和光催化性能。载银BiVO_4粉末对NP和OP有很强的吸附作用，这是由于银氧化物(Ag2O和/或AgO)部分覆盖在银表面所致。当表面氧化银在H_2中被还原时，这种特殊的吸附性质消失。在BiVO4上负载银提高了NP的降解速率和CO2矿化产率。
Silver fine-particles loaded on BiVO4photocatalyst by an impregnation method remarkably improve adsorptive and photocatalytic performance on the degradation of long-chain alkylphenols such as 4-n-nonylphenol (NP) and 4-n-octylphenol (OP). The Ag-loaded BiVO4powders strongly adsorb NP and OP, which is attributable to silver oxides (Ag2O and/or AgO) partly covered on the silver surface. The specific adsorption property disappears when the surface silver oxides are reduced in a H2stream. Degradation rates and CO2mineralization yields for NP are increased by the Ag loading on BiVO4.