功能材料
功能材料
공능재료
Journal of Functional Materials
2015年
19期
19140-19143
,共4页
TiO2%介孔%纳米粒子%光催化
TiO2%介孔%納米粒子%光催化
TiO2%개공%납미입자%광최화
TiO2%mesoporous materials%nanoparticles%photocatalysis
以 TiCl4和(NH 4)6 Mo7 O 24.4H 2 O 为原料,先通过水解、静电自组装和焙烧得到 TiO 2/MoO 3,再用 NaOH 溶液溶解得到介孔 TiO 2.用 X 射线粉末衍射(XRD)、透射电镜(TEM)、X 射线能量色散仪(EDX)、紫外-可见漫反射光谱(UV-DRS)和比表面及孔隙度分析仪(ASAP)对该材料进行表征,合成的介孔 TiO 2 BET 比表面积为241 m2/g,平均孔直径为3．5 nm.通过光催化降解甲基橙实验,发现介孔 TiO 2具有较高光催化活性.
以 TiCl4和(NH 4)6 Mo7 O 24.4H 2 O 為原料,先通過水解、靜電自組裝和焙燒得到 TiO 2/MoO 3,再用 NaOH 溶液溶解得到介孔 TiO 2.用 X 射線粉末衍射(XRD)、透射電鏡(TEM)、X 射線能量色散儀(EDX)、紫外-可見漫反射光譜(UV-DRS)和比錶麵及孔隙度分析儀(ASAP)對該材料進行錶徵,閤成的介孔 TiO 2 BET 比錶麵積為241 m2/g,平均孔直徑為3．5 nm.通過光催化降解甲基橙實驗,髮現介孔 TiO 2具有較高光催化活性.
이 TiCl4화(NH 4)6 Mo7 O 24.4H 2 O 위원료,선통과수해、정전자조장화배소득도 TiO 2/MoO 3,재용 NaOH 용액용해득도개공 TiO 2.용 X 사선분말연사(XRD)、투사전경(TEM)、X 사선능량색산의(EDX)、자외-가견만반사광보(UV-DRS)화비표면급공극도분석의(ASAP)대해재료진행표정,합성적개공 TiO 2 BET 비표면적위241 m2/g,평균공직경위3．5 nm.통과광최화강해갑기등실험,발현개공 TiO 2구유교고광최화활성.
Mesoporous TiO 2 was prepared with the assistance of Mo7 O 6 -24 as templating agent at room tempera-ture.X-ray diffraction (XRD),transmission electron microscopy (TEM),energy-dispersive X-ray spectroscopy (EDX),surface area and porosity analyzer (ASAP)and ultraviolet-visible diffuse reflection spectrum (UV-DRS)were used for characteration of mesoporous titanium dioxide.It has a moderately high surface area of 241 m2/g and a mesoporous structure with an average pore diameter of 3.5 nm.Its photocatalytic activities were evaluated by the degradation of methyl orange (MO)in aqueous solution under UV light irradiation.
