摘要
通过将四氨基钴酞菁(CoTAPc)以共价键方式负载到碳纳米纤维(CNF)上,制备得到了碳纳米纤维负载钴酞菁催化剂(CoTAPc-CNF)。研究了CoTAPc-CNF对H2O2的催化分解性能,考察了不同底物浓度、pH和温度对CoTAPc-CNF催化分解H2O2的影响。结果表明:随着底物浓度的增加,CoTAPc-CNF催化分解H2O2的速率加快;在碱性条件下,CoTAPc-CNF具有较好的催化分解H2O2性能;温度越高,CoTAPc-CNF催化分解H2O2越快,并求得该催化反应的活化能为17.917kJ/mol。
A nanomaterial-based metallophthalocyanine catalyst（CoTAPc-CNF） is prepared by covalently immobilizing cobalt tetraaminophthalocyanine（CoTAPc） on functionalized carbon nanofiber（CNF）.The catalytic performance of CoTAPc-CNF is investigated by the hydrogen peroxide.Besides,this paper investigates the initial concentration of H2O2,pH and temperature of the solution.The results indicate that the decomposed speed of hydrogen peroxide increase with the raising of initial substrate concentration.In the condition of alkalinity,CoTAPc-CNF holds favorable ability for the catalytic decomposition of H2O2 The higher the temperature is,the faster of the catalytic decomposition of H2O2 will be.The catalytic activity is improved.The activation energy of catalytic reaction is 17.917 kJ/mol according to estimation.
出处
《现代纺织技术》
2012年第5期8-11,共4页
Advanced Textile Technology
基金
国家自然科学基金项目(51133006&51103133)
浙江省自然科学基金项目(Y4100094)
浙江省教育厅项目(Y201019108)
关键词
双氧水
催化氧化
钴酞菁
碳纳米纤维
hydrogen peroxide
catalytic oxidation
cobalt phthalocyanine
carbon nanofiber
