Cationic cellulose nanocrystals assisted synthesis of mesoporous Silicalite-1 zeolites with fewer silanol defects

doi:10.1016/j.micromeso.2024.113448

IMR OpenIR

	Cationic cellulose nanocrystals assisted synthesis of mesoporous Silicalite-1 zeolites with fewer silanol defects
	Zou, Run 1,2; Lyu, Li 3; Chansai, Sarayute 1; Hurd, Joseph 1; Xin, Ruojia 1; Wong, Jared An Cheang 1; Lee, Daniel 1; Hardacre, Christopher 1; Jiao, Yilai 2; Fan, Xiaolei 1,3; Ou, Xiaoxia 3,4
通讯作者	Jiao, Yilai() ; Fan, Xiaolei() ; Ou, Xiaoxia(xiaoxia.ou@nottingham.edu.cn)
	2025-02-15
发表期刊	MICROPOROUS AND MESOPOROUS MATERIALS
ISSN	1387-1811
卷号	384 页码:12
摘要	Cellulose nanocrystals (CNCs) are biomass-derived materials with tunable surface properties, which can be used as additives for facilitating mesoporous zeolite synthesis. Herein, cationic cellulose nanocrystals (quaternary ammonium-modified, CNC-N) and unmodified cellulose nanocrystals (hydroxyl-terminated, CNC-OH) were employed to assist the synthesis of mesoporous silicalite-1 (S-1) zeolites with the reduced usage of tetrapropylammonium (TPA, TPA/SiO2 = 0.04). Parametric studies were conducted to obtain the well-crystallised mesoporous S-1 zeolites. Results showed that the CNC-N could more effectively produce hydrophobic S-1 zeolites with fewer internal silanol defects and higher mesoporosity (e.g., mesoporosity, fmeso, was 31, 20 and 22 % for S-1 templated by CNC-N, CNC-OH and without CNCs, respectively), which was expected to favour the adsorption of non-polar volatile organic compounds (VOCs). According to the characterisation data of the materials at different stages of the synthesis, the CNC-N could induce strong interaction with the anionic silicate species (via electrostatic force), resulting in 'deposition' of silicate and TPA on CNC-N, which exhibited slow non-classical crystallisation behaviour that led to the formation of intergrown S-1 (explaining the improved mesoporosity) with fewer internal silanol defects (due to the slow crystallisation). The obtained mesoporous S-1 showed improved performance in toluene adsorption compared to other reference zeolites under investigation. Findings of the work demonstrated the potential of cationic CNCs as the additives for pore/silanol defects engineering of zeolitic materials.
关键词	Silicalite-1 (S-1) zeolite Cellulose nanocrystals (CNCs) Mesoporosity Silanol defects Mechanism Toluene
资助者	European Union ; China Scholarship Council (CSC) ; University of Manchester ; National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation ; State Key Laboratory of Materials-Oriented Chemical Engineering ; Young Talent Sub-project of Ningbo Yongjiang Talent Introduction Programme
DOI	10.1016/j.micromeso.2024.113448
收录类别	SCI
语种	英语
资助项目	European Union[872102] ; China Scholarship Council (CSC)[201906740020] ; University of Manchester ; National Natural Science Foundation of China[22378407] ; National Natural Science Foundation of China[W2431016] ; Zhejiang Provincial Natural Science Foundation[LQ23B060005] ; State Key Laboratory of Materials-Oriented Chemical Engineering[SKL-MCE-23B11] ; Young Talent Sub-project of Ningbo Yongjiang Talent Introduction Programme[2023A-142-G]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001388525600001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/181067
专题	中国科学院金属研究所
通讯作者	Jiao, Yilai; Fan, Xiaolei; Ou, Xiaoxia
作者单位	1.Univ Manchester, Sch Engn, Dept Chem Engn, Oxford Rd, Manchester M13 9PL, England 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Nottingham Ningbo China, Nottingham Ningbo China Beacons Excellence Res & I, Ningbo 315100, Peoples R China 4.Univ Nottingham Ningbo China, Fac Sci & Engn, Ningbo 315100, Peoples R China
推荐引用方式 GB/T 7714	Zou, Run,Lyu, Li,Chansai, Sarayute,et al. Cationic cellulose nanocrystals assisted synthesis of mesoporous Silicalite-1 zeolites with fewer silanol defects[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2025,384:12.
APA	Zou, Run.,Lyu, Li.,Chansai, Sarayute.,Hurd, Joseph.,Xin, Ruojia.,...&Ou, Xiaoxia.(2025).Cationic cellulose nanocrystals assisted synthesis of mesoporous Silicalite-1 zeolites with fewer silanol defects.MICROPOROUS AND MESOPOROUS MATERIALS,384,12.
MLA	Zou, Run,et al."Cationic cellulose nanocrystals assisted synthesis of mesoporous Silicalite-1 zeolites with fewer silanol defects".MICROPOROUS AND MESOPOROUS MATERIALS 384(2025):12.