碳纤维表面的氧化处理对其负载TiO_2的影响  

Effect of surface oxidation of carbon fibers on its TiO_2 support

作　　者：金旭东[1] 傅雅琴[1] 倪庆清[2] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018 [2]日本信州大学

出　　处：《纺织学报》2007年第12期1-4,共4页Journal of Textile Research

基　　金：浙江省自然科学基金资助项目(Y406310);长江学者和创新团队发展计划资助项目(IRT0654)

摘　　要：以聚丙烯腈基碳纤维作为TiO2的载体制备光催化材料,用质量分数为65%-68%的硝酸（115℃）对碳纤维表面进行氧化处理,采用浸渍法对碳纤维进行TiO2负载。研究碳纤维表面的氧化处理对其负载TiO2的影响。利用扫描电子显微镜和超声波清洗仪等对材料的表面形态、TiO2的负载牢度等进行观察和分析。结果表明：随着对碳纤维氧化处理时间的增加,其对TiO2的原始负载率、超声波清洗后的负载率等均有提高的趋势;以对碳纤维进行4 h左右的表面氧化处理后,负载TiO2的效果为好。The photocatalytic materials were synthesized with PAN-based carbon fibers as the support of TiO2. The carbon fibers were oxidized in 65% -68% nitric acid （115℃ ）, and the TiO2 was supported on carbon fibers by the method of immersion. The effect of surface oxidation of carbon fibers on its TiO2 support was studied. The surface of samples was observed by SEM and the bond strength between carbon fibers and TiO2 support was evaluated by ultrasonic vibration. The results suggested： the ratios of TiO2 support both before and after ultrasonic wash increased with oxidation time. For overall consideration of factors in the treatment, it is indicated that when carbon fibers is oxidized for 4 h the better effect of TiO2 support can be obtained.

关 键 词：碳纤维 TIO2 氧化处理 负载 

分 类 号：TQ342.742[化学工程—化纤工业]