Metal organic frameworks(MOFs)is a research hotspot in the solar fuel production and photo-degradation of pollutants field due to high surface area,rich metal/organic species,large pore volume,and adjustability of str...Metal organic frameworks(MOFs)is a research hotspot in the solar fuel production and photo-degradation of pollutants field due to high surface area,rich metal/organic species,large pore volume,and adjustability of structures and compositions.Therefore,in this review,we first summarized the design factors of photocatalytic materials based on MOF from the perspective of"star"MOF.The modification strategies of MOFs-based photocatalysts were discussed to improve its photocatalytic activity and specific applications were summarized as well,including photocatalytic CO_(2)reduction,photocatalytic water splitting and photo-degradation of pollutants.Finally,the advantages and disadvantages of MOFs-based photocatalysts were discussed,the current challenges were highlighted,and suggestions for future research directions were proposed.展开更多
Novel large-sized mesoporous nanofilm-constructed macroporous SiO2(LMNCMS)with two sets of well-defined 3D continuous pass-through macropores(pore size of 0.5-1.0 um,wall thickness of 40-50 nm)was prepared through a d...Novel large-sized mesoporous nanofilm-constructed macroporous SiO2(LMNCMS)with two sets of well-defined 3D continuous pass-through macropores(pore size of 0.5-1.0 um,wall thickness of 40-50 nm)was prepared through a dual-templating approach,and used as an advanced support for TiO2 nanocrystalline photocatalyst.The structural and optical properties of the as-prepared materials were investigated by various characterization techniques in order to explore the connections between catalysts'features and catalytic performance.The photocatalytic activities were evaluated by degradations of methylene blue(MB)and phenol under the simulated sunlight irradiation.To gain insight into the impact of preparation and operation conditions on photocatalytic degradation processes,experiments were conducted at wide ranges of the TiO2 loading content,calcination temperature,solution pH,and photocatalyst dosage.Nano-TiO2/LMNCMS exhibited high photocatalytic activity and stability.Rapid matter transport,good access ibility of pollutants to TiO2 and high light harvesting could mainly account for the superior photocatalytic performance.The trapping experiments were performed to identify the main reactive species in the catalytic reactions.展开更多
文摘Metal organic frameworks(MOFs)is a research hotspot in the solar fuel production and photo-degradation of pollutants field due to high surface area,rich metal/organic species,large pore volume,and adjustability of structures and compositions.Therefore,in this review,we first summarized the design factors of photocatalytic materials based on MOF from the perspective of"star"MOF.The modification strategies of MOFs-based photocatalysts were discussed to improve its photocatalytic activity and specific applications were summarized as well,including photocatalytic CO_(2)reduction,photocatalytic water splitting and photo-degradation of pollutants.Finally,the advantages and disadvantages of MOFs-based photocatalysts were discussed,the current challenges were highlighted,and suggestions for future research directions were proposed.
基金This work was financially supported by the Science and Technology Benefiting Projects of Ningbo(Grant No.2017C50033),the Public Projects of Zhejiang Province(Grant No.LGG19E020002),and the KC Wong Happiness Fund in Ningbo University.
文摘Novel large-sized mesoporous nanofilm-constructed macroporous SiO2(LMNCMS)with two sets of well-defined 3D continuous pass-through macropores(pore size of 0.5-1.0 um,wall thickness of 40-50 nm)was prepared through a dual-templating approach,and used as an advanced support for TiO2 nanocrystalline photocatalyst.The structural and optical properties of the as-prepared materials were investigated by various characterization techniques in order to explore the connections between catalysts'features and catalytic performance.The photocatalytic activities were evaluated by degradations of methylene blue(MB)and phenol under the simulated sunlight irradiation.To gain insight into the impact of preparation and operation conditions on photocatalytic degradation processes,experiments were conducted at wide ranges of the TiO2 loading content,calcination temperature,solution pH,and photocatalyst dosage.Nano-TiO2/LMNCMS exhibited high photocatalytic activity and stability.Rapid matter transport,good access ibility of pollutants to TiO2 and high light harvesting could mainly account for the superior photocatalytic performance.The trapping experiments were performed to identify the main reactive species in the catalytic reactions.
