Home

Citation: Dong Song-Tao, Li Xuan-Wen, Li Da-Dong, Shi Ya-Hua, Nie Hong, Kang Xiao-Hong. Study on the Formation of Mesopore during Hydrothermal Dealumination of Y Zeolite[J]. Acta Physico-Chimica Sinica, ;2002, 18(03): 201-206. doi: 10.3866/PKU.WHXB20020303 shu

Study on the Formation of Mesopore during Hydrothermal Dealumination of Y Zeolite

1.
Research Institute of Petroleum Processing,SinoPec,Beijing　100083;College of Chemistry and Molecular Engineering,Peking University,Beijing　100871

Received Date: 3 August 2001
Available Online: 15 March 2002

Mesopore formation of Y zeolite in hydrothermal dealuminated process was studied over NH4NaY with different Na2O content.A “pseudosteady state" (PSS)was observed by merely raising temperature to 650 ℃,IR characteristic absorbency maintained and few dealumination occurred in this stage,therefore BET surface area,pore volume leveled down substantially.However,they could increase by introducing steam,even could be larger than that of the original NaY in 1 h,and could decrease by further treatment.It was pronounced that protons with high electron affinity formed in temperatureraising stage interacted strongly with frame oxygen,and brought about twist,relaxation and split of zeolite frame.However,sodalite cages with a certain amount of Na＋ kept relatively stable.Then structure could be rearranged based on the stabilized sodalites under the high temperature,hydrothermal condition,but it couldn't heal over due to the existance of extraframe alumina and amorphous silica coming from framework dealumination,only sharp faujasite with damage (defects) in sodalite could be formed.This probably is the mechanism of mesopore formation.
- Hydrothermal treatment;Mesopore;Mechanism;Pseudosteady state;　Diameter distribution
1. [1]
  Kun Xu , Xinxin Song , Zhilei Yin , Jian Yang , Qisheng Song . Comprehensive Experimental Design of Preferential Orientation of Zinc Metal by Heat Treatment for Enhanced Electrochemical Performance. University Chemistry, 2024, 39(4): 192-197. doi: 10.3866/PKU.DXHX202309050
2. [2]
  Tianlong Zhang , Rongling Zhang , Hongsheng Tang , Yan Li , Hua Li . Online Monitoring and Mechanistic Analysis of 3,5-diamino-1,2,4-triazole (DAT) Synthesis via Raman Spectroscopy: A Recommendation for a Comprehensive Instrumental Analysis Experiment. University Chemistry, 2024, 39(6): 303-311. doi: 10.3866/PKU.DXHX202312006
3. [3]
  Bing LIU , Huang ZHANG , Hongliang HAN , Changwen HU , Yinglei ZHANG . Visible light degradation of methylene blue from water by triangle Au@TiO₂ mesoporous catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 941-952. doi: 10.11862/CJIC.20230398
4. [4]
  Yuanpei ZHANG , Jiahong WANG , Jinming HUANG , Zhi HU . Preparation of magnetic mesoporous carbon loaded nano zero-valent iron for removal of Cr(Ⅲ) organic complexes from high-salt wastewater. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1731-1742. doi: 10.11862/CJIC.20240077
5. [5]
  Xiaosong PU , Hangkai WU , Taohong LI , Huijuan LI , Shouqing LIU , Yuanbo HUANG , Xuemei LI . Adsorption performance and removal mechanism of Cd(Ⅱ) in water by magnesium modified carbon foam. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1537-1548. doi: 10.11862/CJIC.20240030
6. [6]
  Heng Zhang . Determination of All Rate Constants in the Enzyme Catalyzed Reactions Based on Michaelis-Menten Mechanism. University Chemistry, 2024, 39(4): 395-400. doi: 10.3866/PKU.DXHX202310047
7. [7]
  Yuejiao An , Wenxuan Liu , Yanfeng Zhang , Jianjun Zhang , Zhansheng Lu . Revealing Photoinduced Charge Transfer Mechanism of SnO₂/BiOBr S-Scheme Heterostructure for CO₂ Photoreduction. Acta Physico-Chimica Sinica, 2024, 40(12): 2407021-. doi: 10.3866/PKU.WHXB202407021
8. [8]
  Yingchun ZHANG , Yiwei SHI , Ruijie YANG , Xin WANG , Zhiguo SONG , Min WANG . Dual ligands manganese complexes based on benzene sulfonic acid and 2, 2′-bipyridine: Structure and catalytic properties and mechanism in Mannich reaction. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1501-1510. doi: 10.11862/CJIC.20240078
9. [9]
  Ronghao Zhao , Yifan Liang , Mengyao Shi , Rongxiu Zhu , Dongju Zhang . Investigation into the Mechanism and Migratory Aptitude of Typical Pinacol Rearrangement Reactions: A Research-Oriented Computational Chemistry Experiment. University Chemistry, 2024, 39(4): 305-313. doi: 10.3866/PKU.DXHX202309101
10. [10]
  Zhen Yao , Bing Lin , Youping Tian , Tao Li , Wenhui Zhang , Xiongwei Liu , Wude Yang . Visible-Light-Mediated One-Pot Synthesis of Secondary Amines and Mechanistic Exploration. University Chemistry, 2024, 39(5): 201-208. doi: 10.3866/PKU.DXHX202311033
11. [11]
  Jiaxin Su , Jiaqi Zhang , Shuming Chai , Yankun Wang , Sibo Wang , Yuanxing Fang . Optimizing Poly(heptazine imide) Photoanodes Using Binary Molten Salt Synthesis for Water Oxidation Reaction. Acta Physico-Chimica Sinica, 2024, 40(12): 2408012-. doi: 10.3866/PKU.WHXB202408012
12. [12]
  Yuena Yang , Xufang Hu , Yushan Liu , Yaya Kuang , Jian Ling , Qiue Cao , Chuanhua Zhou . The Realm of Smart Hydrogels. University Chemistry, 2024, 39(5): 172-183. doi: 10.3866/PKU.DXHX202310125
13. [13]
  Jing Wang , Pingping Li , Yuehui Wang , Yifan Xiu , Bingqian Zhang , Shuwen Wang , Hongtao Gao . Treatment and Discharge Evaluation of Phosphorus-Containing Wastewater. University Chemistry, 2024, 39(5): 52-62. doi: 10.3866/PKU.DXHX202309097
14. [14]
  Zhaohu Li , Weidong Wang , Yuhao Liu , Mingzhe Han , Lingling Wei , Huan Jiao . Research on the Safety Management and Disposal of Chemical Laboratory Waste. University Chemistry, 2024, 39(10): 128-136. doi: 10.3866/PKU.DXHX202312090
15. [15]
  Yingying Chen , Di Xu , Congmin Wang . Exploration and Practice of the “Four-Level, Three-Linkage” General Chemistry Course System. University Chemistry, 2024, 39(8): 119-125. doi: 10.3866/PKU.DXHX202401057
16. [16]
  Lisen Sun , Yongmei Hao , Zhen Huang , Yongmei Liu . Experimental Teaching Design for Viscosity Measurement Serves the Optimization of Operating Conditions for Kitchen Waste Treatment Equipment. University Chemistry, 2024, 39(2): 52-56. doi: 10.3866/PKU.DXHX202307063
17. [17]
  Kai CHEN , Fengshun WU , Shun XIAO , Jinbao ZHANG , Lihua ZHU . PtRu/nitrogen-doped carbon for electrocatalytic methanol oxidation and hydrogen evolution by water electrolysis. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1357-1367. doi: 10.11862/CJIC.20230350
18. [18]
  Tengjiao Wang , Tian Cheng , Rongjun Liu , Zeyi Wang , Yuxuan Qiao , An Wang , Peng Li . Conductive Hydrogel-based Flexible Electronic System: Innovative Experimental Design in Flexible Electronics. University Chemistry, 2024, 39(4): 286-295. doi: 10.3866/PKU.DXHX202309094
19. [19]
  Shule Liu . Application of SPC/E Water Model in Molecular Dynamics Teaching Experiments. University Chemistry, 2024, 39(4): 338-342. doi: 10.3866/PKU.DXHX202310029
20. [20]
  Qiang Zhou , Pingping Zhu , Wei Shao , Wanqun Hu , Xuan Lei , Haiyang Yang . Innovative Experimental Teaching Design for 3D Printing High-Strength Hydrogel Experiments. University Chemistry, 2024, 39(6): 264-270. doi: 10.3866/PKU.DXHX202310064

Get Citation

PDF

XML

Metrics

PDF Downloads(2612)
Abstract views(3634)
HTML views(45)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return