Upconversion hollow nanospheres CeF3 co-doped with Yb3+and Tm3+for photocatalytic nitrogen fixation|Minghui Zhong;Zhendong Wang;Da Dai;Baozhu Yang;Shixiang Zuo;Chao Yao;Fengqin Wu;Xiazhang Li|W.M.Keck Center for Advanced Microscopy and Microanalysis,University of Delaware,Newark,DE,19716,USA - 期刊导航|首站-论文投稿智能助手|论文发表|论文智能投稿|期刊自助发表推荐|杂志社快速发表|查同导刊-域田数据官方网站

典型文献

Upconversion hollow nanospheres CeF3 co-doped with Yb3+and Tm3+for photocatalytic nitrogen fixation

文献摘要：

Solar driven nitrogen(N2)fixation to synthesize ammonia is a potential alternative for the traditional Haber-Bosch approach to meeting industrial demand,but is largely hampered by the difficulties in the harvesting of solar energy and activating inert N2.In this work,hollow CeF3 nanospheres co-doped with activator Tm3+and sensitizer Yb3+(Yb3+∶Tm3+∶CeF3)were prepared by microwave hydrothermal method.The product was employed as a catalyst for photo-driven N2 fixation by adjusting the molar ratio of Ce3+∶Yb3+∶Tm3+.Results show that the porous hollow structure enhances the light-harvesting by physical scattering and reflection.In addition,heteroatom doping generates abundant fluorine vacancies(Fv)which provide abundant active sites for adsorption and activation of N2.The sample with molar ratio of CeF3∶Yb3+∶Tm3+at 178∶20∶2 demonstrates the highest utilization of solar energy attributed to the strongest upconversion capability of near-infrared(NIR)light to visible and ultraviolet(UV)light,and the NH4+concentration achieves the highest value of 15.06 μmol/(gcat·h)under simulated sunlight while nearly 6.22 μmol/(gcat·h)under NIR light.Current study offers a promising and sustainable strategy for the fixation of atmospheric N2 using full-spectrum solar energy.

文献关键词：

中图分类号：

[1] 农业科学（S） / 农业工程（S2） / 农田基本建设、农垦（S28）

[2] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）

[3] 农业科学（S） / 农业工程（S2） / 农田水利（S27） / 水利改良土壤措施（S278）

作者姓名：

Minghui Zhong;Zhendong Wang;Da Dai;Baozhu Yang;Shixiang Zuo;Chao Yao;Fengqin Wu;Xiazhang Li

作者机构：

Advanced Catalysis and Green Manufacturing Collaborative Innovation Center,Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Changzhou University,Changzhou 213164,China;W.M.Keck Center for Advanced Microscopy and Microanalysis,University of Delaware,Newark,DE,19716,USA

文献出处：

稀土学报（英文版）

引用格式：

[1]Minghui Zhong;Zhendong Wang;Da Dai;Baozhu Yang;Shixiang Zuo;Chao Yao;Fengqin Wu;Xiazhang Li-.Upconversion hollow nanospheres CeF3 co-doped with Yb3+and Tm3+for photocatalytic nitrogen fixation)[J].稀土学报（英文版）,2022(04):586-594

A类：

Tm3+for,Tm3+and,Tm3+at,NH4+concentration

B类：

Upconversion,hollow,nanospheres,CeF3,doped,Yb3+and,photocatalytic,nitrogen,fixation,Solar,driven,N2,synthesize,ammonia,potential,alternative,traditional,Haber,Bosch,approach,meeting,industrial,demand,largely,hampered,by,difficulties,harvesting,solar,energy,activating,inert,In,this,work,activator,sensitizer,were,prepared,microwave,hydrothermal,method,product,was,employed,catalyst,adjusting,molar,Ce3+,Results,show,that,porous,structure,enhances,physical,scattering,reflection,addition,heteroatom,doping,generates,abundant,fluorine,vacancies,Fv,which,provide,active,sites,adsorption,activation,sample,demonstrates,highest,utilization,attributed,strongest,upconversion,capability,infrared,NIR,visible,ultraviolet,UV,achieves,value,gcat,under,simulated,sunlight,while,nearly,Current,study,offers,promising,sustainable,strategy,atmospheric,using,full,spectrum

AB值：

0.5824

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