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Cooperative coupling of photocatalytic production of H_(2)O_(2) and oxidation of organic pollutants over gadolinium ion doped WO_(3) nanocomposite 被引量:4
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作者 Jiaying Wang Jiejie Wang +3 位作者 sijin zuo Jianchuan Pei Weiping Liu Juan Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2023年第9期258-263,共6页
This work reported the lanthanide ion(Gd^(3+))doped tungsten trioxide(Gd-WO_(3))nanocrystal for remarkable promoted photocatalytic degradation of organic pollutants and simultaneous in-situ H_(2)O_(2)production.With d... This work reported the lanthanide ion(Gd^(3+))doped tungsten trioxide(Gd-WO_(3))nanocrystal for remarkable promoted photocatalytic degradation of organic pollutants and simultaneous in-situ H_(2)O_(2)production.With doped lanthanide ion(Gd^(3+)),Gd-WO_(3)showed a much broad and enhanced solar light absorption,which not only promoted the photocatalytic degradation efficiency of organic compounds,but also provided a suitable bandgap for direct reduction of oxygen to H_(2)O_(2).Additionally,the isolated Gd^(3+)on WO_(3)surface can efficiently weaken the*OOH binding energy,increasing the activity and selectivity of direct reduction of oxygen to H_(2)O_(2),with a rate of 0.58 mmol L^(-1)g^(-1)h^(-1).The in-situ generated H_(2)O_(2)can be subsequently converted to·OH based on Fenton reaction,further contributed to the overall removal of organic pollutants.Our results demonstrate a cascade photocatalytic oxidation-Fenton reaction which can efficiently utilize photo-generated electrons and holes for organic pollutants treatment. 展开更多
关键词 Lanthanide ion Photocatalytic oxidation Photocatalytic generation of H_(2)O_(2)in situ Cascade reaction
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