氧化石墨烯在萘氧化中的作用  

Role of Graphene Oxides in Naphthalene Oxidation

作　　者：韩文鹏[1,2] 张晔[1] 李学宽[1] 葛晖[1] 吕广强[1] 周立公[1] 杨英[1] 吴明红[2] 

机构地区：[1]中国科学院山西煤炭化学研究所,山西太原030001 [2]上海大学环境与化学工程学院,上海200444

出　　处：《精细化工》2016年第4期425-430,共6页Fine Chemicals

基　　金：国家自然科学基金(21473231);中国科学院战略先导专项(XDA07020400)~~

摘　　要：为了研究氧化石墨烯在萘氧化过程中的作用,构建了萘-叔丁基过氧化氢(TBHP)-氧化石墨烯的催化氧化体系。考察了氧化石墨烯种类、溶剂种类、氧化剂含量、石墨烯用量、反应温度、反应时间对萘氧化反应的影响。结果表明,氧化石墨烯的引入可以提高萘的转化率和1,4-萘醌的收率;当萘用量为100 mg,叔丁基过氧化氢为2.4 m L,氧化石墨烯为20 mg且n(O)/n(C)=0.10,以乙酸为反应溶剂,在100℃反应22 h,萘的转化率达到29.05%,苯酐和1,4-萘醌的选择性之和为92.34%,收率分别为18.48%和8.34%。在此基础上,初步探讨了氧化石墨烯对萘氧化的作用机理。The system of naphthalene-tert-butyl hydroperoxide（TBHP）-graphene oxide was constructed in order to study the effects of graphene oxide（GO） on the oxidation process of naphthalene.The effects of species of graphene oxide,the solvent,the oxidant content,the reaction temperature and reaction time on the oxidation of naphthalene were investigated.The results showed that graphene oxide can improve the conversion of naphthalene and the yield of 1,4-naphthoquinone,and the optimum conditions were below：100 mg of naphthalene,2.4 m L of tert-butyl hydroperoxide,20 mg of graphene oxide in which O / C mole ratio was 10%,the reaction temperature of 100 ℃,reaction time of 22 h.The corresponding results exhibited naphthalene conversion of 29.05%,total selectivity（phthalic anhydride and 1,4-naphthoquinone） of 92.34%,and the yield reached 18.48% and 8.34%,respectively.The mechanism of the oxidation process of naphthalene in the presence of GO was preliminarily explored.

关 键 词：萘 氧化石墨烯 1 4-萘醌 叔丁基过氧化氢 

分 类 号：TQ032[化学工程]