CAJ | 학술논문

用不同晶型的纳米TiO2制备出了纳米级SO4^2-/TiO2固体超强酸．用BET（Brunauer，Emmett and Teller）法测定了在不同H2SO4溶液浓度、不同焙烧温度、不同浸泡时间及不同浸渍液时．比表面积的变化情况．结果表明用锐钛型纳米TiO2，以H2SO4溶液浸泡，在350℃焙烧所制备的固体超强酸的比表面积最大，为211．0m^2／g．
용불동정형적납미TiO2제비출료납미급SO4^2-/TiO2고체초강산．용BET（Brunauer，Emmett and Teller）법측정료재불동H2SO4용액농도、불동배소온도、불동침포시간급불동침지액시．비표면적적변화정황．결과표명용예태형납미TiO2，이H2SO4용액침포，재350℃배소소제비적고체초강산적비표면적최대，위211．0m^2／g．
The nanograde SO4^2-/TiO2 solid super acid was prepared by nano-fitania of different crystal type.The specific surface area was studied by using BET in different concentration of H2SO4, different calcining temperature and different impregnating time as well as different impregnating solution. Thus, soaking anatase nano-titania power in H2SO4 and baking at 350℃ , the nanograde SO4^2- /TiO2 solid super acid prepared had the bigest specific surface area, 211.0 m^2/g.