简介:BMIL-53(Fe)/MWCNTshybridmaterialwaspreparedviathesolvethermalsynthesismethod.TheresultingsampleswerecharacterizedbyX-raydiffraction,FT-IRspectroscopy,scanningelectronmicroscopy,UV-Visabsorptionspectroscopy,theBrunauer-Emmet-Tellermethod,andphotoluminescencespectroscopy.TheresultshowedthattheintroductionofmultiwalledcarbonnanotubestotheMIL-53(Fe)canincreasethesurfaceareaofthecomposites,suppresstherecombinationofphotogeneratedelectron-holepairsandpromotetheelectrontransferprocess.ThehybridmaterialshowedoptimalphotocatalyticperformanceinthedegradationofRhodamineBundertheirradiationofultravioletandnaturallight.
简介:Byusingthebimodalmesoporoussilica(BMMS)asthecarrierandbutyltitanateasthetitaniumsource,theTiO2/BMMScatalystwasprepared.ThesampleswerecharacterizedbyXRD,XRF,N2adsorptionanddesorption,FTIR,UVvis,SEM,EDS,andTEMtechniques.ThetestresultsshowedthatTiO2wasamorphous,theTiO2/BMMScatalysthadanorderedbimodalmesoporousstructure,andthechemicalinteractionexistedbetweenBMMSandTiO2.SincetheTiO2/BMMShadalowerbandgap,itsphotocatalyticactivitywasbetterthanTiO2.UnderUVirradiationaone-potPODSsystemwassetup,usingTiO2/BMMSasthecatalyst,H2O2astheoxidant,andmethanolasthesolvent.TheTiO2/BMMScatalystshowedbetterphotocatalyticactivitythanthemono-modalmesoporousTiO2/SBA-15catalyst,andthedesulfurizationrateofdibenzothiophene(DBT)overTiO2/BMMScatalystcouldreach99.2%.TheTiO2/BMMScatalystalsohadsogoodstabilitythatthedesulfurizationrateofDBTdidnotdropapparentlyafter8cyclesofreusing,andcouldstillbecloseto90%.
简介:为了探讨鄂尔多斯盆地永宁油田任山区块延长组长2油藏的富集规律,利用岩心分析测试、测井曲线以及试油等资料,对长2油层组的沉积微相、储层特征进行了系统分析。长2油层组发育曲流河沉积体系,由河道砂坝、天然堤及泛滥平原微相构成,其中河道砂坝微相由灰白色长石砂岩及岩屑长石砂岩组成。河道砂坝微相砂岩以长213小层物性最好,平均孔隙度为11.6%,渗透率变化较大,发育残余粒间孔隙和溶蚀孔隙。较为强烈的成岩作用有绿泥石薄膜胶结,自生高岭石胶结及长石、岩屑颗粒的溶解作用,自生伊利石结晶度为0.57~0.88,表明砂岩整体处于中成岩阶段A期。长2油藏的分布受局部构造和供烃条件的控制,充足的油源供应是长2油气成藏的最关键因素,本区西南部靠近长2—长7暗色泥岩发育区,是长2油气最有利富集区。