A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability

doi:10.1039/c7nj01914a

QIBEBT-IR > 多相催化转化研究组

	A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability
	Lin, Sen 1; Liu, Ruiyun 1; Li, Niping 2; Guo, Peng3 ; Shi, Lei 2,4
	2017-08-07
发表期刊	NEW JOURNAL OF CHEMISTRY
卷号	41 期号:15 页码:7634-7642
摘要	The effect of an alkaline treatment on the mesoporous material Al-SBA-15 was investigated using powder X-ray diffraction (XRD), inductively coupled plasma (ICP) analysis, mid-infrared spectroscopy (IR), N-2 sorption isotherm measurements, transmission electron microscopy (TEM), scanning electron microscopy (SEM), solid state Al-27 MAS NMR analysis, and structural replicating technology. It was observed that elemental Si could be readily extracted from wall structures, and the Al-rich surface that was consequently exposed protected the uniform hexagonal arrays. The extracted substances rapidly accumulate inside the Al-SBA-15 mesopores and continuously dissolve and migrate into the alkaline solution upon a prolonged treatment time. Therefore, alkaline-treated Al-SBA-15 exhibits a larger pore size and a thinner wall than that before treatment. Due to its Al-rich surface and highly-open mesostructure, alkaline-treated Al-SBA-15 exhibits excellent catalytic performance in a low density polyethylene (LDPE) catalytic degradation reaction. The temperature corresponding to the maximum degradation rate was measured to be similar to 10 K lower than that in raw Al-SBA-15. More importantly, the secondary-scale mesopores inside the Al-SBA-15 walls were remarkably expanded, allowing efficient penetration of the carbon precursor. Its structural replica, CMK-3, has a highly ordered mesostructure, which is attributed to the formation of enhanced carbon sticks that connect the primary carbon rods. For the same reason, CMK-3 templated from alkaline-treated Al-SBA-15 exhibits a strong pressure resistant capability. The reduction in the surface area and pore volume after high-pressure treatment were calculated to be as low as 4.5% and 3.0%, respectively.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c7nj01914a
关键词[WOS]	MFI ZEOLITES ; ZSM-5 ZEOLITES ; CATALYTIC-PROPERTIES ; PORE STRUCTURE ; DESILICATION ; CRACKING ; POSTTREATMENT ; SILICA ; DEALUMINATION ; PYROLYSIS
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
项目资助者	National Natural Science Foundation of China(51472256)
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000406192800082
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9611
专题	多相催化转化研究组
作者单位	1.Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China 2.Qilu Univ Technol, Sch Chem & Pharmaceut Engn, Daxue Rd 3501, Jinan 250353, Shandong, Peoples R China 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, 189 Songling Rd, Qingdao 266101, Peoples R China 4.Qilu Univ Technol, Shandong Prov Key Lab Fine Chem, Daxue Rd 3501, Jinan 250353, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Lin, Sen,Liu, Ruiyun,Li, Niping,et al. A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability[J]. NEW JOURNAL OF CHEMISTRY,2017,41(15):7634-7642.
APA	Lin, Sen,Liu, Ruiyun,Li, Niping,Guo, Peng,&Shi, Lei.(2017).A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability.NEW JOURNAL OF CHEMISTRY,41(15),7634-7642.
MLA	Lin, Sen,et al."A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability".NEW JOURNAL OF CHEMISTRY 41.15(2017):7634-7642.