BiVO_4/SBA-15的制备及其光催化氧化性能
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摘要
为提高BiVO_4催化活性,以SBA-15为载体,通过后合成法制备了BiVO_4/SBA-15介孔分子筛,通过X射线衍射、扫描电子显微镜、能量色散谱、N_2吸附-脱附等方法对制备的样品进行了表征。结果表明:样品具有介孔孔道结构,BiVO_4均匀分散于SBA-15分子筛表面。以苯乙烯制备苯甲醛为探针反应考察了制备条件对其活性的影响。结果表明:BiVO_4水热时间为18 h,BiVO_4负载量为15%,530℃焙烧2 h时,所制备的BiVO_4/SBA-15在光催化氧化反应中具有较高的光催化活性,苯乙烯转化率达到82.86%,苯甲醛选择性达到59.62%。
BiVO_4/SBA-15 catalyst was prepared by a post-synthetic method with SBA-15 as a carrier. The catalysts were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, N_2 adsorption-desorption. The results show that the samples have a mesoporous structure, and BiVO_4 is evenly dispersed on the surface of SBA-15 molecular sieve.The preparation of formaldehyde as a probe reaction with styrene was carried out to investigate the effect of preparation condition on the activity. It is indicated that the catalyst hydrothermally treated for 18 h at 15% BiVO_4 and roasted at 530 ℃ for 2 h has a high catalytic activity, and the styrene conversion rate and selectivity to benzaldehyde are 82.86% and 59.62%, respectively.
BiVO_4/SBA-15 catalyst was prepared by a post-synthetic method with SBA-15 as a carrier. The catalysts were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, N_2 adsorption-desorption. The results show that the samples have a mesoporous structure, and BiVO_4 is evenly dispersed on the surface of SBA-15 molecular sieve.The preparation of formaldehyde as a probe reaction with styrene was carried out to investigate the effect of preparation condition on the activity. It is indicated that the catalyst hydrothermally treated for 18 h at 15% BiVO_4 and roasted at 530 ℃ for 2 h has a high catalytic activity, and the styrene conversion rate and selectivity to benzaldehyde are 82.86% and 59.62%, respectively.
引文
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[26]ERDEM B,ERDEM S,CITAK A,et al.Preparation Characterization and catalytic properties of SBA-15-SO3H supported tungstophosphoric acid for esterification reaction[J].Acta Phys Pol,A,2017,132(3):1041?1044.
[27]张书翠,姜东,唐涛,等.高分散TiO2/SBA-15的制备及光催化性能[J].物理化学学报,2010,26(5):1330?1336.ZHANG Shucui,JIANG Dong,TANG Tao,et al.Acta Phys-Chim Sin(in Chinese),2010,26(5):1330?1336.
[28]许杰,郝晨春,王文忠.晶相、形貌和尺寸可控制的BiVO4微球控制合成[J].化工新型材料,2016,44(4):137?139.XU Jie,HAO Chenchun,WANG Wenzhong.New Chem Mater(in Chinese),2016,44(4):137?139.
[29]苑丽质.可见光催化剂BiVO4的制备及性能研究[J].应用化工,2016,45(1):89?96.YUAN Lizhi.Appl Chem Ind(in Chinese),2016,45(1):89?96.
[30]杨静,明阳,孙宇,等.Cu-β/SBA-15的制备及其吸附脱硫性能[J].石油学报(石油加工),2017,33(5):919?926.YANG Jing,MING Yang,SUN Yu,et al.Acta Petrol Sin(Petrol Proc Sec)(in Chinese),2017,33(5):919?926.
[2]PATEL A.Industrial and engineering chemistry research[M].Washington:American Chemical Society,2012:732?740.
[3]WANG S S,ZHANG J,ZHOU C L,et al.An ionic compound containing Ru(Ⅲ)-complex cation and phosphotungstate anion as the efficient and recyclable catalyst for clean aerobic oxidation of alcohols[J].Catal Commun,2012,28:152?154.
[4]TANG Q H,WANG J,HUANG X N.Preparation of benzaldehyde by oxidating benzyl alcohol with Mn K/Al2O3 catalyst in liquid-phase[J].J Chem Eng Chin Univ,2014,28(6):1360?1365.
[5]CANG,LU B,LI X,et al.Iron-chloride ionic liquid immobilized on SBA-15 for solvent-free oxidation of benzyl alcohol to benzaldehyde with H2O2[J].Chem Eng Sci,2015,137:268?275.
[6]王子豪.基于苯乙烯氧化制苯甲醛的新型Co3O4@HZSM-5催化剂研究[D].扬州:扬州大学,2018.WANG Zihao.Study on a novel Co3O4@HZSM-5 catalyst based on benzene oxidation to benzaldehyde(in Chinese,dissertation).Yangzhou:Yangzhou University,2018.
[7]ZHU X C,SHEN R W,ZHANG L X.Catalytic oxidation of styrene to benzaldehyde over a copper Schiff-base/SBA-15 catalyst[J].Chin JCatal,2014,35(10):1716?1726.
[8]TANG Q H,PEI X Y,WEIi Z W.Liquid-phase oxidation of benzyl alcohol to benzaldehyde over Ce-OMS-2 catalysts[J].J Chin Soc Rare Earths,2013,31(2):191?196.
[9]YU J Q,ZHANG Y,KUDO A.Synthesis and photocatalytic performances of BiVO4 by ammonia co-precipitation process[J].JState Chem,2009,l82(2):223?228.
[10]刘剑.BiVO4粉体水热合成及光催化性能研究[J].硅酸盐通报,2015,34(11):3394?3404.LIU Jian.Bull Chin Ceramic Soc(in Chinese),2015,34(11):3394?3404.
[11]张妍,于建强,工藤昭彦,等.BiVO4-MCM-41复合催化剂的制备及其对亚甲基蓝降解的光催化活性[J].催化学报,2008,29(7):624?628.ZHANG Yan,YU Jianqiang,GONGTENG Zhaoyan,et al.Chin JCatal(in Chinese),2008,29(7):624?628.
[12]詹望成,卢冠忠,王艳芹.介孔分子筛的功能化制备及催化性能研究进展[J].化工进展,2006,25(1):1?7.ZHAN Wangcheng,LU Guanzhong,WANG Yanqin.Chem Ind Eng Prog(in Chinese),2006,25(1):1?7.
[13]吴淑杰,黄家辉,吴通好,等.Al-SBA-15介孔分子筛的合成、表征及其在苯酚叔丁基化反应中的催化性能[J].催化学报,2006,27(1):9?14.WU Shujie,HUANG Jiahui,WU Tonghao,et al.Chin J Catal(in Chinese),2006,27(1):9?14.
[14]张璐璐,孙悦,王喆,等.Ti O2/SBA-15的制备及光催化氧化脱硫性能[J].硅酸盐学报,2016,44(1):56?62.ZHANG Lulu,SUN Yue,WANG Zhe,et al.J Chin Ceram Soc,2016,44(1):56?62.
[15]高晓明,付峰,张理平,等.Ag-BiVO4催化剂的制备及其用于光催化氧化噻吩[J].石油化工,2012,41(1):41?45.GAO Xiaoming,FU Feng,ZHANG Liping,et al.Petrochem Technol(in Chinese),2012,41(1):41?45.
[16]杨丽娜,亓玉台,袁兴东,等.磷钨酸改性介孔分子筛SBA-15催化剂的酸性及水热稳定性的研究[J].石油化工,2005,34(3):222?225.YANG Lina,QI Yutai,YUAN Xingdong,et al.Petrochem Technol(in Chinese),2005,34(3):222?225.
[17]李春晶,沈健,张亮,等.介孔分子筛Nb2O5/SBA-15催化合成油酸甲酯[J].辽宁石油化工大学学报,2008,28(4):9?15.LI Chunjing,SHEN Jian,ZHANG Liang,et al.J Liaoning Univ Petrol Chem Technol(in Chinese),2008,28(4):9?15.
[18]詹金友,张璐璐,孙尧,等.Sr-ZSM-5/SBA-15复合分子筛的制备[J].石油学报(石油加工),2016,32(5):898?905.ZHAN Jinyou,ZHANG Lulu,SUN Yao,et al.Acta Petrol Sin(Petrol Proc Sec)(in Chinese),2016,32(5):898?905.
[19]闫春燕,路迢,刘斐,等.钒酸铋/氧化石墨烯复合催化剂的制备和性能[J].广州化工,2017,45(19):33?36.YAN Chunyan,LU Tiao,LIU Fei,et al.Guangzhou Chem Ind(in Chinese),2017,45(19):33?36.
[20]王俊丰,沈健,任铁强.Ce-SBA-15的制备及其苯酚甲醇烷基化性能[J].分子催化,2016,30(6):523?531.WANG Junfeng,SHEN Jian,REN Tieqiang.J Mol Catal(in Chinese),2016,30(6):523?531.
[21]张璐璐,詹金友,孙尧,等.WO3-TiO2/SBA-15的制备及其光催化氧化脱硫性能[J].燃料化学学报,2016,44(6):754?762.ZHANG Lulu,ZHAN Jinyou,SUN Yao,et al.J Fuel Chem Technol(in Chinese),2016,44(6):754?762.
[22]陈杨英,韩秀文,包信和.W-SBA-15介孔分子筛的直接合成及其对环己烯环氧化反应的催化性能[J].催化学报,2005,26(5):412?416.CHEN Yangying,HAN Xiuwen,BAO Xinhe.Chin J Catal(in Chinese),2005,26(5):412?416.
[23]陈颖,李慧,赵连成,等.水热合成纳米BiVO4的制备及表征[J].材料导报B:研究篇,2011,25(9):23?26.CHEN Ying,LI Hui,ZHAO Liancheng,et al.Mater Rev B:Res(in Chinese),2011,25(9):23?26.
[24]高晓明,付峰,武玉飞,等.Co-BiVO4光催化剂的制备及其用于光催化氧化噻吩[J].无机材料学报,2012,27(10):1073?1078.GAO Xiaoming,FU Feng,WU Yufei,et al.J Inorg Mater(in Chinese),2012,27(10):1073?1078.
[25]刘仁月,吴榛,白羽,等.Ag2CO3/BiVO4复合微米片光催化剂的制备、表征及光催化机理[J].无机化学学报,2017,33(3):519?527.LIU Renyue,WU Zhen,BAI Yu,et al.Chin J Inorg Chem(in Chinese),2017,33(3):519?527.
[26]ERDEM B,ERDEM S,CITAK A,et al.Preparation Characterization and catalytic properties of SBA-15-SO3H supported tungstophosphoric acid for esterification reaction[J].Acta Phys Pol,A,2017,132(3):1041?1044.
[27]张书翠,姜东,唐涛,等.高分散TiO2/SBA-15的制备及光催化性能[J].物理化学学报,2010,26(5):1330?1336.ZHANG Shucui,JIANG Dong,TANG Tao,et al.Acta Phys-Chim Sin(in Chinese),2010,26(5):1330?1336.
[28]许杰,郝晨春,王文忠.晶相、形貌和尺寸可控制的BiVO4微球控制合成[J].化工新型材料,2016,44(4):137?139.XU Jie,HAO Chenchun,WANG Wenzhong.New Chem Mater(in Chinese),2016,44(4):137?139.
[29]苑丽质.可见光催化剂BiVO4的制备及性能研究[J].应用化工,2016,45(1):89?96.YUAN Lizhi.Appl Chem Ind(in Chinese),2016,45(1):89?96.
[30]杨静,明阳,孙宇,等.Cu-β/SBA-15的制备及其吸附脱硫性能[J].石油学报(石油加工),2017,33(5):919?926.YANG Jing,MING Yang,SUN Yu,et al.Acta Petrol Sin(Petrol Proc Sec)(in Chinese),2017,33(5):919?926.