以胶原纤维为模板制备介孔型KZr_2(PO_4)_3

Preparation of Mesopore Structured KZr_2(PO_4)_3 Using Collagen Fiber as Template

以胶原纤维作为模板,首先将Zr(Ⅳ)负载在胶原纤维上,然后吸附磷,最后经高温煅烧除去胶原纤维模板制备了介孔型磷酸锆钾(KZr2(PO4)3,KZP)。利用电感耦合等离子发散光谱仪(ICP)、热重分析仪(TG)、X射线衍射仪(XRD)、场发射扫描电镜(FESEM)、场发射透射电镜(FETEM)、X射线光电子能谱(XPS)、红外光谱(IR)、N2吸附/脱附分析等对KZP进行了表征。结果表明:胶原纤维模板在800℃时即可完全去除,当以磷酸二氢钾(KH2PO4)作为磷源,Zr/P摩尔比为0.62时,经800℃煅烧后得到了具有介孔结构的KZP。

Mesoporous KZr_2（PO_4）_3（KZP） was prepared using collagen fiber as template.Zr（Ⅳ） was firstly loaded on collagen fiber and then the phosphate was adsorbed. This precursor was heat treated and the mesoporous KZP was obtained.Inductive coupled plasma（ICP） emission spectrometry,thermogravimetric analysis（TGA）,X-ray diffractometry（XRD）,field emission scanning electron microscopy（FESEM）, field emission transmission electron microscopy（FETEM）,X-ray photoelectron spectroscopy（XPS）,Infrared spectrometry（IR） and N_2 adsorption/desorption techniques were used to characterize the as-synthesized mesoporous KZP.Experimental results indicated that the collagen fiber template can be completely removed at 800℃.It was found that the mesoporous structured KZP was obtained when KH_2PO_4 was used as phosphate source and the molar ratio of Zr/P was 0.62.