|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Enhanced photocatalytic activity of rGO/TiO2 for the decomposition of formaldehyde under visible light irradiation显示文摘Due to the low concentration of indoor air contaminants,photocatalytic technology shows low efficiency for indoor air purification.The application of TiO_2 for photocatalytic removal of formaldehyde is limited,because TiO_2 can only absorb ultraviolet(UV) light.Immobilization of TiO_2 nanoparticles on the surface of graphene can improve the visible light photocatalytic activity and the adsorption capacity.In this study,rGO(reduced graphene oxide)/TiO_2 was synthesized through a hydrothermal method using titanium tetrabutoxide and graphene oxide as precursors,and was used for the degradation of low concentration formaldehyde in indoor air under visible light illumination.Characterization of the crystalline structure and morphology of rGO/TiO_2 revealed that most GO was reduced to rGO during the hydrothermal treatment,and anatase TiO_2 nanoparticles(with particle size of 15–30 nm) were dispersed well on the surface of the rGO sheets.rGO/TiO_2 exhibited excellent photocatalytic activity for degradation of formaldehyde in indoor air and this can be attributed to the role of rGO,which can act as the electron sink and transporter for separating photo-generated electron–hole pairs through interfacial charge transfer.Furthermore,rGO could adsorb formaldehyde molecules from air to produce a high concentration of formaldehyde on the surface of rGO/TiO_2.Under visible light irradiation for 240 min,the concentration of formaldehyde could be reduced to 58.5 ppbV.rGO/TiO_2 showed excellent moisture-resistance behavior,and after five cycles,r GO/TiO_2 maintained high photocatalytic activity for the removal of formaldehyde(84.6%).This work suggests that the synthesized rGO/TiO_2 is a promising photocatalyst for indoor formaldehyde removal. | Lian Yu Long Wang Xibo Sun Daiqi Ye | 2018 | Journal of Environmental Sciences2018，30，11： | 13 |
| 2 | Abundances and distribution of minerals and elements in high-alumina coal fly ash from the Jungar Power Plant, Inner Mongolia, China显示文摘 | Shifeng Dai Lei Zhao Suping Peng Chen-Lin Chou Xibo Wang Yong Zhang Dan Li Yingying Sun | 2009 | International Journal of Coal Geology2009，，4： | 1 |
| 3 | Abundances and distribution of minerals and elements in high-alumina coal fly ash from the Jungar Power Plant, Inner Mongolia, China显示文摘 | Shifeng Dai Lei Zhao Suping Peng Chen-Lin Chou Xibo Wang Yong Zhang Dan Li Yingying Sun | 2009 | International Journal of Coal Geology2009，，4： | 1 |
| 4 | Mineralogical and geochemical compositions of the coal in the Guanbanwusu Mine, Inner Mongolia, China: Further evidence for the existence of an Al (Ga and REE) ore deposit in the Jungar Coalfield显示文摘 | Shifeng Dai Yaofa Jiang Colin R. Ward Landing Gu Vladimir V. Seredin Huidong Liu Dao Zhou Xibo Wang Yuzhuang Sun Jianhua Zou Deyi Ren | 2012 | International Journal of Coal Geology2012，，： | 1 |
| 5 | Effects of coarse and fine aggregates on long-term mechanical properties of sea sand recycled aggregate concrete显示文摘Typical effects of coarse and fine aggregates on the long-term properties of sea sand recycled aggregate concrete(SSRAC)are analyzed by a series of axial compression tests.Two different types of fine(coarse)aggregates are considered:sea sand and river sand(natural and recycled coarse aggregates).Variations in SSRAC properties at different ages are investigated.A novel test system is developed via axial compression experiments and the digital image correlation method to obtain the deformation field and crack development of concrete.Supportive results show that the compressive strength of SSRAC increase with decreasing recycled coarse aggregate replacement percentage and increasing sea sand chloride ion content.The elastic modulus of SSRAC increases with age.However,the Poisson’s ratio reduces after 2 years.Typical axial stress-strain curves of SSRAC vary with age.Generally,the effect of coarse aggregates on the axial deformation of SSRAC is clear;however,the deformation differences between coarse aggregate and cement mortar reduce by adopting sea sand.The aggregate type changes the crack characteristics and propagation of SSRAC.Finally,an analytical expression is suggested to construct the long-term stress-strain curve of SSRAC. | Jingwei YlNG Yijie HUANG Xu GAO Xibo QI Yuedong SUN | 2021 | Frontiers of Structural and Civil Engineering2021，15，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员