负载型SrTiO3/HZSM-5光催化材料制备与性能研究

采用溶胶-凝胶法制备HZSM-5负载SrTiO3,对其进行XRD,SEM,BET,BJH和FT-IR表征,研究SrTiO3/HZSM-5光催化降解活性艳红X-3B的活性。结果表明：SrTiO3材料的主要成分为钙钛矿结构SrTiO3,并含有少量SrCO3相。在负载型χSrTiO3/HZSM-5样品中,SrTiO3包覆在HZSM-5的外表面。负载型催化剂的比表面积主要由分子筛提供,材料中的孔径主要分布在2-20nm范围内。负载后SrTiO3的光催化活性明显提高,30%SrTiO3/HZSM-5具有最强的光催化活性。经90min光照后,93.8%的活性艳红X-3B在30%SrTiO3/HZSM-5上...

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Bibliographic Details
Published in材料工程 Vol. 44; no. 12; pp. 22 - 27
Main Author 刘春玲 毕菲非 张文杰 何红波
Format Journal Article
LanguageChinese
Published 沈阳理工大学环境与化学工程学院,沈阳,110159%中国科学院沈阳应用生态研究所,沈阳,110016 2016
Subjects
HZSM-5
光催化
溶胶-凝胶
钛酸锶
strontium titanate
光催化
钛酸锶
HZSM-5
photocatalysis
溶胶-凝胶
sol-gel
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ISSN1001-4381
1001-4381
DOI10.11868/j.issn.1001-4381.2016.12.004

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Summary:采用溶胶-凝胶法制备HZSM-5负载SrTiO3,对其进行XRD,SEM,BET,BJH和FT-IR表征,研究SrTiO3/HZSM-5光催化降解活性艳红X-3B的活性。结果表明：SrTiO3材料的主要成分为钙钛矿结构SrTiO3,并含有少量SrCO3相。在负载型χSrTiO3/HZSM-5样品中,SrTiO3包覆在HZSM-5的外表面。负载型催化剂的比表面积主要由分子筛提供,材料中的孔径主要分布在2-20nm范围内。负载后SrTiO3的光催化活性明显提高,30%SrTiO3/HZSM-5具有最强的光催化活性。经90min光照后,93.8%的活性艳红X-3B在30%SrTiO3/HZSM-5上降解,而在纯SrTiO3上只能降解23.9%。
Bibliography:11-1800/TB
strontium titanate; photocatalysis; HZSM-5; sol-gel
HZSM-5 supported SrTiO3 was prepared using sol-gel method.The materials were characterized by XRD,SEM,BET,BJH and FT-IR measurements.The activity of photocatalytic degradation of reactive brilliant red X-3Bwas studied on SrTiO3/HZSM-5.The results show that SrTiO3 material is mainly composed of perovskite SrTiO3,as well as a small amount of SrCO3 phase.SrTiO3is coated on the external surface of HZSM-5in theχSrTiO3/HZSM-5.The specific surface area of the supported materials is mainly provided by the zeolite,while pore size in the materials is mainly in the range between 2-20 nm.Photocatalytic activity of SrTiO3 is obviously enhanced after being supported,and the 30%SrTiO3/HZSM-5has the maximum activity.93.8% of reactive brilliant red X-3B can be degraded on 30%SrTiO3/HZSM-5after 90 minites irradiation,while only 23.9%of the dye can be degraded on pure SrTiO3.
LIU Chun-ling1,BI Fei-fei1,ZHANG Wen-jie1,HE Hong-bo2 （1 School of Environmental and Chemical
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2016.12.004