Controllable and scalable synthesis of ordered mesoporous silica nanosheets by using acidified g-C3N4 as a lamellar surfactant | |
Department | OSSO国家重点实验室 |
Du XR(杜晓蕊); Zou GJ(邹国军); Wang XL(王晓来); Zou GJ(邹国军) | |
2017 | |
Source Publication | Nanotechnology |
ISSN | 0957-4484 |
Volume | 28Issue:29Pages:1-10 |
Abstract | Two-dimensional (2D) mesoporous nanomaterials are required in catalysis, separation, adsorption, and energy storage fields due to their outstanding mass transfer performance. However, their fabrication via the 'bottom up' strategy has been rarely reported and is limited by the difficulties in obtaining a versatile and accessible structure-directing agent. Here, ultrathin mesoporous silica nanosheets (MSN) were successfully synthesized by employing acidified g-C3N4 as a structural directing agent owing to its natural layered structure, stoichiometric solubility, and amphiphilicity. The thickness of MSN is readily adjustable by tuning the dosage of acidified g-C3N4 during the fabrication process, and when the mass ratio of silica/acidified-g-CzN4 is 10, the thickness of the MSN is 6–9 nm. TEM, SAXRD, and BET analysis demonstrated the mesoporous characteristics of MSN with a long-range ordered hexagonal arrangement symmetry, a uniform pore size distribution around 2.9 nm, and high BET surface areas of 1000–1150 m2 g−1. The superior mass-transfer performance of MSN in catalysis applications, which was derived from its special structure, was confirmed by the outstanding methane combustion activity of MSN supported Co3O4 catalysts. This work provides a controllable and scalable 'bottom up' fabrication method for 2D porous material, and also opens up an alternative application for g-C3N4. |
Keyword | Ordered Mesoporous Silica 2d Nanomaterial Acidified G-c3n4 Structure-directing Agent 'bottom Up' Strategy |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1088/1361-6528/aa76c2 |
Indexed By | SCI |
If | 3.440 |
Language | 英语 |
Funding Project | 多相催化-2研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22047 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Zou GJ(邹国军) |
Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Du XR,Zou GJ,Wang XL,et al. Controllable and scalable synthesis of ordered mesoporous silica nanosheets by using acidified g-C3N4 as a lamellar surfactant[J]. Nanotechnology,2017,28(29):1-10. |
APA | Du XR,Zou GJ,Wang XL,&邹国军.(2017).Controllable and scalable synthesis of ordered mesoporous silica nanosheets by using acidified g-C3N4 as a lamellar surfactant.Nanotechnology,28(29),1-10. |
MLA | Du XR,et al."Controllable and scalable synthesis of ordered mesoporous silica nanosheets by using acidified g-C3N4 as a lamellar surfactant".Nanotechnology 28.29(2017):1-10. |
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Du_2017_Nanotechnolo(2472KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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