CAJ | 학술논문

采用浸渍-提拉法和溶胶-凝胶法制备TiO2/ACF复合光催化材料，用BET、XRD和SEM等进行表征。结果表明，溶胶-凝胶法制备的复合材料由于负载了大量TiO2，其比表面积明显低于浸渍法；浸渍法制备的复合材料随着粘结剂添加量的增加，比表面积呈减小趋势。溶胶-凝胶法制备的复合材料的表面TiO2锐钛晶型较明显，浸渍-提拉法无明显的锐钛晶型。采用浸渍-提拉法制备的TiO2/ACF复合材料，TiO2以粒状负载于ACF表面；溶胶-凝胶法中TiO2在ACF表面形成一层薄膜，由于焙烧，薄膜产生裂隙，暴露出ACF，有利于吸附和催化作用的同时进行。
채용침지-제랍법화용효-응효법제비TiO2/ACF복합광최화재료，용BET、XRD화SEM등진행표정。결과표명，용효-응효법제비적복합재료유우부재료대량TiO2，기비표면적명현저우침지법；침지법제비적복합재료수착점결제첨가량적증가，비표면적정감소추세。용효-응효법제비적복합재료적표면TiO2예태정형교명현，침지-제랍법무명현적예태정형。채용침지-제랍법제비적TiO2/ACF복합재료，TiO2이립상부재우ACF표면；용효-응효법중TiO2재ACF표면형성일층박막，유우배소，박막산생렬극，폭로출ACF，유리우흡부화최화작용적동시진행。
TiO2/ACF Photoeatalytie eomposites were prepared by dipping-eoating method and sol-gel method and they were eharaeterized by means of BET,XRD and SEM. The results show that the speeifie surfaee area of eomposite materials prepared by sol-gel method was obviously lower than that of made by the impregnation,while with the addition of the binder in the preparation of eomposite material by the im-pregnation,the speeifie surfaee area of the eomposite materials prepared deereased. XRD maps showed that the surfaee TiO2 anatase erystal of the eomposite materials prepared by the sol-gel method was more elear than that of prepared by the impregnation. SEM results show that TiO2 was loaded in the form of par-tieles when the eomposite materials were prepared by the impregnation. When using the sol-gel method, TiO2 forms a thin film in the surfaee of ACF and the interiorACF was exposed,beeause the film eraeks af-ter roasting,whieh is benefieial to the simultaneity of adsorption and photoeatalysis.