Synthesis and Characterization of VPI-5 and MCM-9 Molecular Sieves with Large Pores

Abstract

Abstract: Aluminophosphate-based molecular sieves of VPI-5 and MCM-9 were synthesized by hy-drothermal crystallization by using n- dipropylamine as a structure directing agent. The molecular sievies with large pores contain rings of 18 T-atoms. The synthesis conditions and crystallization were investigated.The structures and properties of the molecular sieves were studied by means of XRD, IRand TG-DTAtechniques. The results show that the VPI-5 is of a pure phase,whereas the MCM-9 is a mixture of VPI-5 and A1PO₄-11.

Key words: Hydrothermal crystallization, Aluminophosphate, Molecular sieve

TrendMD:

Qiu Shilun, Yao Shangqing, Pang Wenqin . Synthesis and Characterization of VPI-5 and MCM-9 Molecular Sieves with Large Pores[J]. Chem. J. Chinese Universities, 1990, 11(3): 300.

[1]	LI Haibo, XIAO Changfa, JIANG Long, HUANG Yun, DAN Yi. Copolymerization of Methyl Acrylate and 1-Octene Catalyzed by the Loaded Aluminum Chloride on MCM-41 Molecular Sieve [J]. Chem. J. Chinese Universities, 2021, 42(9): 2974.
[2]	LI Yichuan, ZHU Guofu, WANG Yu, CHAI Yongming, LIU Chenguang, HE Shengbao. Effects of Substrate Surface Properties and Precursor Chemical Environment on In⁃situ Oriented Construction of Titanium Silicalite Zeolite Membranes [J]. Chem. J. Chinese Universities, 2021, 42(9): 2934.
[3]	WANG Ye, ZHANG Xiaosi, SUN Lijing, LI Bing, LIU Lin, YANG Miao, TIAN Peng, LIU Zhongyi, LIU Zhongmin. Morphology Control of SAPO Molecular Sieves under the Assistance of Organosilane [J]. Chem. J. Chinese Universities, 2021, 42(3): 683.
[4]	WANG Yong, DONG Biao, SUN Jiao, DONG Delu, SUN Liankun. Synthesis and Spectral Properties of Ag/SiO₂-Al₂O₃ Composite Nanomaterial Based on Molecular Sieve Template [J]. Chem. J. Chinese Universities, 2021, 42(10): 3233.
[5]	SONG Hongling, PENG Yuan, YANG Weishen. Two-dimensional Nanosheets for Ultra-permeable Membrane-Based Gas Separation with High Efficiency [J]. Chem. J. Chinese Universities, 2021, 42(1): 248.
[6]	WANG Binyu, LI Li, LI Jing, JIN Keyan, ZHANG Shaoqing, ZHANG Jianan, YAN Wenfu. Recent Progresses on the Synthesis of Zeolites from the Industrial Solid Wastes [J]. Chem. J. Chinese Universities, 2021, 42(1): 40.
[7]	CHEN Xiao, SHEN Boyuan, XIONG Hao, WEI Fei. Atomic Scale Structure of Beam Sensitive Materials [J]. Chem. J. Chinese Universities, 2021, 42(1): 133.
[8]	HE Zhechao, XIA Kun, WANG Jing, ZHOU Dan, LU Xinhuan, XIA Qinghua. Controllable Synthesis of SAPO-5 Molecular Sieves and Exploration of the Crystallization Process ^† [J]. Chem. J. Chinese Universities, 2020, 41(6): 1224.
[9]	YE Xiaodong, QI Guodong, XU Jun, DENG Feng. Glucose Oxidation on Au-supported SBA-15 Molecular Sieve ^† [J]. Chem. J. Chinese Universities, 2020, 41(5): 960.
[10]	PENG Li, WU Zhengqi, WANG Xing, WANG Boxuan, GU Xuehong. Preparation of Sn-doped MFI Molecular Sieve Membrane by CVD Method and Its Separation Performance for Ethanol/water System [J]. Chem. J. Chinese Universities, 2020, 41(12): 2710.
[11]	LUO Dongxia, LI Bing, WANG Quanyi, TIAN Peng, LIU Zhongyi, LIU Zhongmin. Study on Crystallization Process of SAPO-5 Molecular Sieve [J]. Chem. J. Chinese Universities, 2020, 41(11): 2442.
[12]	ZHAO Yun, WEI Jinjing, ZHOU Yu, ZHU Jixiu, WANG Houyong, CHEN Aimin. Ti-MCM-41 Catalysts for the Ring Opening Reaction of Epoxy Compounds with Amines ^† [J]. Chem. J. Chinese Universities, 2019, 40(9): 1937.
[13]	SHAO Guoquan,ZHU Hui,MA Wei,YAN Pan,MA Jilong. Synthesis of High-performance AlPO₄-14 Zeolite Membranes for Gas Separation ^† [J]. Chem. J. Chinese Universities, 2019, 40(11): 2265.
[14]	WANG Shuang,YU Yue,BAI Pu,LIU Jiancong,LI Lin,SONG Xiaowei. Synthesis of Aluminophosphate Molecular Sieves by Ball Milling and Recrystallization^† [J]. Chem. J. Chinese Universities, 2018, 39(9): 1859.
[15]	GUO Junhui,YAN Wenfu,SHI Wei,XU Ruren. Rapid Synthesis of Aluminophosphate Molecular Sieve AlPO₄-5 Under Ambient Pressure and In situ Thermogravimetric-Mass Spectroscopy Investigation of the Crystallization^† [J]. Chem. J. Chinese Universities, 2018, 39(5): 841.

Synthesis and Characterization of VPI-5 and MCM-9 Molecular Sieves with Large Pores

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments