采用传统焙烧和微波辐射制备了不同活性炭(AC)负载Ru催化剂,并用于催化臭氧氧化降解邻苯二甲酸二甲酯(DMP)反应中,探讨了催化剂的构效关系.结果表明,所有AC和催化剂均能提高臭氧氧化DMP过程中TOC(总有机碳)去除率,其活性顺序为Ru/coal-AC＞ nutshell-AC＞ Ru/nutshell-AC＞ Ru/coconut-AC≈coal-AC＞ coconut-AC.负载的Ru颗粒扩散到AC大孔中,增加了反应的传质阻力,使得反应物与AC内表面的活性位和金属Ru的接触机会减少,这是Ru/nutshell-AC和Ru/coconut-AC活性低于Ru/coal-AC的一个原因;催化剂表面Ru分散度也是导致其活性差别的原因之一.微波加热引起nutshell-AC表面活性官能团发生变化,从而导致其负载的Ru催化活性降低.相对于传统焙烧,微波辐射热处理能够提高coal-AC表面Ru的分散度,从而提高催化剂活性.
参考文献
| [1] | Kasprzyk-Hordern B;Ziolek M;Nawrocki J .[J].Appl Caral B,2003,46:639. |
| [2] | Lü A H;Hu Ch;Nie Y L;Qu J H .[J].Applied Catalysis B:Environmental,2010,100:62. |
| [3] | Dong Y M;Yang H X;He K;Song Sh Q Zhang A M .[J].Applied Catalysis B:Environmental,2009,85:155. |
| [4] | Kasprzyk-Hordern B;Raczyk-Stanislawiak U;Swietlik J;Nawrocki J .[J].Applied Catalysis B:Environmental,2006,62:345. |
| [5] | Orge C A;Orfao J J M;Pereira M F R;de Farias A M D Neto R C R Fraga M A .[J].Applied Catalysis B:Environmental,2011,103:190. |
| [6] | 黄燕,李可心,颜流水,戴玉华,黄智敏,薛昆鹏,郭会琴,熊晶晶.二维六方p6mm有序介孔 WO3-TiO2复合材料的制备及其可见光光催化性能[J].催化学报,2012(02):308-316. |
| [7] | Yang H W;Yang Sh X;Wu L;Liu W J .[J].CATALYSIS COMMUNICATIONS,2001,15:99. |
| [8] | 赵江红,刘振宇.吸附于Cu/AC和Fe/AC催化-吸附剂上的苯酚的催化氧化[J].催化学报,2005(02):143-147. |
| [9] | Dong Y M;Jiang P P;Zhang A M .[J].Chinese Journal of Inorganic Chemistry,2009,25:1595. |
| [10] | Yalfani M S;Contreras S;Llorca J;Medina F .[J].Applied Catalysis B:Environmental,2011,107:9. |
| [11] | Wang J B;Zhou Y R;Zhu W P;He X W .[J].Journal of Hazardous Materials,2009,166:502. |
| [12] | Huang R H;Yah H H;Li L;Sh,Deng D Y,Shu Y H,Zhang Q Y .[J].Applied Catalysis B:Environmental,2011,106:264. |
| [13] | 龙丽萍,赵建国,杨利娴,付名利,吴军良,黄碧纯,叶代启.常温下 MnO2/Al2O3催化剂催化臭氧氧化甲苯反应[J].催化学报,2011(06):904-916. |
| [14] | Zhou, YR;Zhu, WP;Liu, FD;Wang, JB;Yang, SX .Catalytic activity of Ru/Al2O3 for ozonation of dimethyl phthalate in aqueous solution[J].Chemosphere,2007(2):145-150. |
| [15] | Faria P C C;Orfao J J M;Pereira M F R .[J].CATALYSIS COMMUNICATIONS,2008,9:2121. |
| [16] | Liu Zh Q Ma J;Cui Y H;Zhang B P .[J].Applied Catalysis B:Environmental,2009,92:301. |
| [17] | Dong Y M;Yang H X;He K;Wu X Zhang A M .[J].Applied Catalysis B:Environmental,2008,82:163. |
| [18] | Pines D S;Reckhow D A .[J].Ozone:Sci Eng,2003,25:25. |
| [19] | Faria P CC;Orfao J J M;Pereira M F M .[J].Applied Catalysis B:Environmental,2008,79:237. |
| [20] | Zhang T;Li Ch J;Ma J;Tian H Qiang Zh M .[J].Applied Catalysis B:Environmental,2008,82:131. |
| [21] | Boehm H P .[J].ADVANCES IN CATALYSIS,1966,16:179. |
| [22] | Salame I I;Bandosz T J .[J].Journal of Colloid and Interface Science,2001,240:252. |
| [23] | Bader H;Hoigne J .[J].Water Research,1981,15:449. |
| [24] | Hosokawa S;Kanai H;Utani K;Taniguchi Y-i Saito Y Imamura S .[J].Applied Catalysis B:Environmental,2003,45:181. |
| [25] | Barbier J Jr;Delano(e) F;Jabouille F;Duprez D Blanchard G Isnard P .[J].Journal of Catalysis,1998,177:378. |
| [26] | Berry F J;Smart L E;Prasad P S S;Lingaiah N Rao P K .[J].Applied Catalysis A:General,2000,204:191. |
| [27] | Rivera-Utrilla J.;Sanchez-Polo M. .Ozonation of 1,3,6-naphthalenetrisulphonic acid catalysed by activated carbon in aqueous phase[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2002(4):319-329. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%