简介:
简介:在polymetallic小瘤和海底山合作富人外壳的深海的矿物质是不仅由矿化作用而且由包含微生物(biomineralization)的生物学上驾驶的过程形成了。在polymetallic小瘤以内,免费生活并且形成biofilm细菌为锰免职提供矩阵,并且在海底山合作富人外壳中,coccolithophores代表为起始的锰免职充当简历种子的主导的有机体。这些(简历)矿物质是经济地重要的:锰是一个重要alloying部件和除了被使用的特殊的钢的钴形式部分,与另外的稀罕金属一起,在血浆屏幕,硬盘磁铁和混合汽车马达。在我们在这些金属的丰富的器官的矩阵的参予的理解的最近的进步可能为biotechnological应用的可行性研究提供基础。
简介:Bismuth-basedSillen-Aurivilliuscompoundsarebeingexploredasefficientphotocatalystmaterialsforthedegradationoforganicpollutantsduetotheiruniquelayeredstructurethatfavourseffectiveseparationofelectron-holepairs.Inthiswork,wesynthesizedSillen-Aurivillius-relatedBi2YO4CIwiththebandgapof2.5eVbyasimplesolid-statereactionandsensitizedwithrhodiumnickel(RhNi)nanoparticles(NPs)toformtheRhNi/Bi2YO4CIheterostructure.PhotocatalyticactivitiesofBiOCI,Bi2YO4CIandtheRhNi/Bi2YO4CIheterostructurewereexaminedforthedegradationofrhodamine-6Gundervisible-lightillumination.ResultsdemonstratedthatthephotocatalyticdyedegradationefficiencyofRhNi/Bi2YO4CIheterostructuresishigherthanthoseofBiOCIandBi2YO4CI,attributedtothesynergisticmolecular-scalealloyingeffectofbimetallicRhNiNPs.Theplausiblemechanismforthedegradationofrhodamine-6Gandtheeffectiveelectron-holepairutilizationmechanismwerediscussed.