化学世界
化學世界
화학세계
CHEMICAL WORLD
2010年
2期
110-112
,共3页
α-甲基苯乙烯%光催化合成%插层化合物%苯乙酮
α-甲基苯乙烯%光催化閤成%插層化閤物%苯乙酮
α-갑기분을희%광최화합성%삽층화합물%분을동
Key words:α-methylstyrene%photocatalytic synthesis%intercalation compounds%acetophenone
以α-甲基苯乙烯为原料,五氧化二钒/烷基紫精插层化合物为光催化剂,对影响光催化合成苯乙酮的实验条件如:溶剂的影响、催化荆的用量、O_2流速等进行了研究.实验结果表明:当催化剂浓度为0.20 g/L,O_2流速25 mL/min,反应6 h,α-甲基苯乙烯的转化率可达32%,苯乙酮的选择性为98%,产率为31%.
以α-甲基苯乙烯為原料,五氧化二釩/烷基紫精插層化閤物為光催化劑,對影響光催化閤成苯乙酮的實驗條件如:溶劑的影響、催化荊的用量、O_2流速等進行瞭研究.實驗結果錶明:噹催化劑濃度為0.20 g/L,O_2流速25 mL/min,反應6 h,α-甲基苯乙烯的轉化率可達32%,苯乙酮的選擇性為98%,產率為31%.
이α-갑기분을희위원료,오양화이범/완기자정삽층화합물위광최화제,대영향광최화합성분을동적실험조건여:용제적영향、최화형적용량、O_2류속등진행료연구.실험결과표명:당최화제농도위0.20 g/L,O_2류속25 mL/min,반응6 h,α-갑기분을희적전화솔가체32%,분을동적선택성위98%,산솔위31%.
Using α-methyl styrene as raw material and vanadium pentoxide/alkyl viologen intercalation compounds as photo-catalyst,the effect of experimental conditions on acetophenone photocatalytic synthesis,such as the solvent,catalyst usage,O_2 flow rate,etc.was studied.The experimental results showed that when the catalyst concentration was 0.20 g/L,the O_2 flow rate was 25 mL/min and the reaction time was 6 h,α-methyl styrene conversion was close to 32%,and the selectivity and yield of acetophenone was 9 8%and 31%,respectively.
