Fast and low-temperature elimination of organic templates from SBA-15 using dielectric barrier discharge plasma

被引：0

作者：

王林 ^{[1
,2
,3
]}

姚军康 ^{[2
]}

王政 ^{[2
]}

焦洪桥 ^{[3
]}

齐静 ^{[3
]}

雍晓静 ^{[3
]}

刘殿华 ^{[1
]}

机构：

[1] State Key Laboratory of Chemical Engineering, East China University of Science and Technology

[2] State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University

[3] Coal to Liquids Chemical Research and Development Center,Shenhua Ningxia Coal Industry

来源：

Plasma Science and Technology | 2018年 / 10期

关键词：

D O I：

暂无

中图分类号：

TB383.4 [];

学科分类号：

摘要：

Organic templates P-123 of mesoporous SBA-15 can be effectively removed in a few minutes（4 min） by using the dielectric-barrier discharge（DBD） plasma technique at ambient pressure and low gas temperature（around 130 ℃）. The mesoporous SBA-15 was characterized by FT-IR,29Si solid sate NMR, TEM, XRD, TGA and N2 adsorption/desorption isotherms. The as-made SBA-15 treated with DBD plasma exhibited a larger surface area of 790 m2?·?g-1 with larger pores and microspore volume than samples prepared by using the conventional thermal calcination method(550℃ and 5 h, 660 m2?·?g-1). In addition to less shrinkage of the silica framework, the DBD-prepared SBA-15 showed significantly increased weight loss of 8.3%about 200 °C as compared with that of conventional calcination（5.5%）, which is attributed mainly to the dehydroxylation by condensation of silanol groups.

引用

页码：5 / 9

页数：5

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