在低温下用超声波法快速合成了X型分子筛,用XRD、TEM、BET、IR、TG-DSC等对合成产物进行了表征.结果表明,在n(Na2O):n(SiO2):n(Al2O3):n(H2O)＝5.85:3.30:1.00:105.0,60℃下短时间超声波晶化60min就能合成纳米X型分子筛,其BET、外比表面与微孔面积分别为472.4m2/g、185.5n12/g与287.9m2/g,颗粒均匀,平均粒径约为10nm.研究了超声波晶化时间和陈化时间对合成纳米X分子筛的影响.相对于常规水热法,超声波法降低了晶化温度,缩短了晶化时间,而且样品具有相当的热稳定性.
参考文献
| [1] | Pinard L;Magnoux P;Ayrault P et al.Oxidation of chlorinated hydrocarbons over zeolite catalysts 2.Comparative study of dichloromethane transformation[J].Journal of Catalysis,2004,221(02):662. |
| [2] | Rosa ILV.;Serra OA.;Iamamoto Y.;Manso CMCP. .Biomimetical catalytic activity of iron(III) porphyrins encapsulated in the zeolite X[J].Journal of molecular catalysis, A. Chemical,2000(2):199-208. |
| [3] | Li Jingping;Zhao Ruihua;Xue Jianwei et al.Progress in hydrogen storage with zeolites[J].Journal of Chemical Industry and Engineering(China),2004,55(z1):122. |
| [4] | Christele Beauvais;Anne Boutin;Alain H.Fuchs .Adsorption of water in zeolite sodium-faujasite A molecular simulation study[J].Comptes Rendus Chimie,2005(3/4):485-490. |
| [5] | 马正月,陈皓侃,李文,李保庆.烟气中多环芳烃吸附脱除的研究[J].燃料化学学报,2004(05):526-530. |
| [6] | 李德伏,曾海,张艳,王金渠.分子筛吸附分离乙烯和氮气性能研究[J].低温与特气,2000(06):22-24,31. |
| [7] | Jens Weitkamp;Stefan Ernst;Bernd Günzel et al.Separation of gaseous water/ethanol mixtures by adsorption on hydrophobic zeolites[J].Zeolites,1991,11(04):314. |
| [8] | 陈卫平.13X分子筛处理电镀废水[J].材料保护,2001(02):45-46. |
| [9] | 施平平,刘金泉,王银叶,毕飞.纳米X-型沸石制备及其对含铅废水处理试验[J].化学工业与工程,2005(03):182-186. |
| [10] | 陶红,马鸿文.钾长石合成13X分子筛的实验研究[J].无机材料学报,2001(01):63-68. |
| [11] | Wang Yangdong;Liu Yang;Dong Jialu et al.Synthesis of fine crystal zeolite A and its crystal shape[J].Chinese Journal of Catalysis,1998,19(06):610. |
| [12] | Park S E;Kim D S;Chang J S et al.Synthesis of MCM-41 using microwave heating with ethylene glyeol[J].Catalysis Today,1998,44(1-4):301. |
| [13] | Kim D S;Chang J S;Kim W Y et al.Beneficial role of ethylene glvcol in the synthesis of MCM-41 material under microwave irradiation[J].Bulletin of the Korean Chemical Society,1999,20(04):408. |
| [14] | 赵杉林;张扬健;孙桂大 等.ZSM-5沸石分子筛的微波辐射法合成与表征[J].石油学报,1999,15(03):89. |
| [15] | Claus Madsen;Claus J. H. Jacobsen .Nanosized zeolite crystals-convenient control of crystal size distribution by confined space synthesis[J].Chemical communications,1999(8):673-674. |
| [16] | Bo WANG,Hong Zhu MA,Qi Zhen SHI.Synthesis of Nanosized NaY Zeolite by Confined Space Method[J].中国化学快报(英文版),2002(04):385-388. |
| [17] | Günter H Kühl .Crystalization of low-solica faujasite(SiO2/Al2O3～2.0)[J].Zeolites,1987,7(05):451. |
| [18] | Xu Xiaochun;Bao Yun;Song Chunshan et al.Microwave-assisted hydrotherrnal synthesis of hydroxy-sodalite zeolite membrane[J].Microporous and Mesoporous Materials,2004,75(03):173. |
| [19] | Decio Coutinho;Kenneth J.Balkus,Jr. .Preparation and characterization of zeolite X membranes via pulsed-laser deposition[J].Microporous and Mesoporous Materials,2002(2):79-91. |
| [20] | 邬建辉,张传福,湛菁,吴琳琳.超声波在粉体材料制备中的应用[J].有色金属,2001(03):81-83. |
| [21] | Run Mingtao;Wu Sizhu;Wu Gang .Ultrasonic synthesis of mesoporous molecular sieve[J].Microporous and Mesoporous Materials,2004,74(01):37. |
| [22] | 钟声亮,张迈生,苏锵.超细4A分子筛的超声波低温快速合成[J].高等学校化学学报,2005(09):1603-1606. |
| [23] | 王保玉,吴建梅,李牛,袁忠勇,项寿鹤.超声作用下MCM-36分子筛的快速合成[J].催化学报,2007(05):398-400. |
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%