Ordered mesoporous materials have shown great potential in the fields of catalysis [1], adsorption, separation, energy conversion and storage [2], environmental processing [3], sensing, information, electronic devices [4], biomedicine [5] and other fields. application prospects. It has excellent properties such as large pore diameter (2-50 nm), high specific surface area, large pore volume, adjustable pore structure and morphology, diverse skeleton composition, and easy-to-modify surface. In addition, mesoporous materials can also be used as nanoscale microreactors, providing an important basis for people to study the nanoconfinement effect and the small size effect, surface effect and quantum effect of nanomaterials from a microscopic perspective.
Mesoporous titanium dioxide is used in optoelectronic devices[4]
Bailingwei exclusively sells a series of new functional mesoporous materials developed by Academician Zhao Dongyuan of Fudan University. Its advantages are as follows:
There are as many as 10 types, covering inorganic, organic and even metal oxides, such as silica, carbon, titanium dioxide, enriching the types of mesoporous materials;
The mesoscopic structure is highly ordered, with high specific surface area, large pore volume, and narrow pore size distribution, which makes it show great application prospects in many fields;
The surface is easy to be organically functionalized and can be modified with sulfhydryl, amino, epoxide, imidazole and other groups;
The particles have good dispersion and are not easy to agglomerate and settle, which facilitates further research on catalysis, adsorption, and separation of mesoporous materials in the future.
mesoporous silica
Application areas: catalyst carriers (such as precious metals, metal oxides, etc.); pollutant adsorbents and detectors (such as H2S, formaldehyde, algae toxins, etc.); nanomedicine carriers (such as cytochrome C, serum protein, etc.)
average particle size：500-2000 nm
Two-dimensional hexagonal structure（p6mm）
Specific surface area：700-1100 m2g-1
Aperture：6-11 nm
Pore volume：0.6-1.3 cm3g-1
Good dispersion in water and ethanol
Surface-modifiable groups: thiol, amino, epoxide, imidazole, etc.
literature：Science, 1998, 279, 548
average particle size：> 1000 nm
Body-centered cubic structure
Specific surface area：600-960 m2g-1
Aperture：5-12 nm
Pore volume：0.50-0.95 cm3g-1
Good dispersion in water and ethanol
Surface-modifiable groups: thiol, amino, epoxide, imidazole, etc.
literature：J. Am. Chem. Soc., 1998, 120, 6024
average particle size：60-250 nm
Three-dimensional dendritic mesoporous channels
Specific surface area：410-680 m2g-1
Aperture：2.8-13.3 nm
Pore volume：0.57-1.66 cm3g-1
Good dispersion in water and ethanol
Surface-modifiable groups: thiol, amino, epoxide, imidazole, etc.
literature：Nano Lett., 2014, 14, 923
average particle size：120-250 nm
There are hollow tubes on the spherical surface, forming a sea urchin-like shape
Specific surface area：200-450 m2g-1
Aperture：2.0-3.0 nm
Pore volume：0.35-0.56 cm3g-1
Good dispersion in water and ethanol
Surface-modifiable groups: thiol, amino, epoxide, imidazole, etc.
literature：ACS Cent. Sci., 2017, 3, 839
average particle size：200-800 nm
The outer shell is mesoporous silica, and the inner shell is hollow structure.
Specific surface area：350-800 m2g-1
Aperture：2-4 nm
Pore volume：0.6-1.4 cm3g-1
Surface-modifiable groups: thiol, amino, epoxide, imidazole, etc.
Good dispersion in water and ethanol
mesoporous carbon
Application areas: oil-water separators; electrode materials (such as batteries and supercapacitors); catalyst carriers (such as precious metals, metal oxides, etc.); organic pollutant adsorbents (such as acetone, benzene, rhodamine B, etc.); nanofilters ( Such as inorganic nanoparticles, biomolecules)
average particle size：> 1000 nm
Two-dimensional hexagonal structure（p6mm）
Specific surface area：540-1500 m2g-1
Aperture：3.5-8.0 nm
Pore volume：0.4-1.31 cm3g-1
Good dispersion in organic solvents
Surface-modifiable groups: carboxyl, phenolic hydroxyl, acid anhydride and other oxygen-containing groups
literature：Angew. Chem. Int. Ed., 2005, 44, 7053
average particle size：> 1000 nm
Body-centered cubic structure
Specific surface area：510-900 m2g-1
Aperture：3.7-6.8 nm
Pore volume：0.4-0.85 cm3g-1
Good dispersion in organic solvents
Surface-modifiable groups: carboxyl, phenolic hydroxyl, acid anhydride and other oxygen-containing groups
literature：Angew. Chem. Int. Ed., 2005, 44, 7053
average particle size：> 1000 nm
Two-dimensional hexagonal structure（p6mm）
Specific surface area：800-1130 m2g-1
Aperture：2.0-4.0 nm
Pore volume：0.8-1.52 cm3g-1
Good dispersion in organic solvents
literature：J. Am. Chem. Soc., 2006, 128, 11652
Mesoporous carbon-silicon composites
Application fields: Unique "reinforced concrete" structural inorganic-organic composite materials can be used as catalyst carriers (such as precious metals, metal oxides, etc.); inorganic/organic pollutant adsorbents and detectors (such as acetone, benzene, rhodamine B wait)
average particle size：> 1000 nm
Two-dimensional hexagonal structure（p6mm）
Specific surface area：280-600 m2g-1
Aperture：2.2-6.8 nm
Pore volume：0.21-0.58 cm3g-1
Good dispersion in organic solvents
Surface-modifiable groups: thiol, amino, imidazole and some oxygen-containing groups
literature：J. Am. Chem. Soc., 2006, 128, 11652
mesoporous titanium dioxide
Application areas: electrode materials (such as dye-sensitized solar cells); photocatalysts (such as photocatalytic hydrogen production, photocatalytic degradation of organic pollutants, etc.)
average particle size：600-2500 nm
Two-dimensional hexagonal structure (p6mm), radial mesoporous channels
Specific surface area：80-157 m2g-1
Aperture：5.0-12 nm
Pore volume：0.2-0.56 cm3g-1
Good dispersion in water and ethanol
literature：Sci. Adv., 2015 ,1(4), e1500166.
References
- Dengke Shen, Lei Chen, Jianping Yang, Renyuan Zhang, Yong Wei, Xiaomin Li, Wei Li, Zhenkun Sun, Hongwei Zhu, Aboubakr M. Abdullah, Abdullah Al-Enizi, Ahmed A. Elzatahry, Fan Zhang, Dongyuan Zhao. ACS Appl. Mater. Interfaces. 2015, 7, 17450-17459.
- Zhenhui Liu, Doudou Guan, Qiang Yu, Lin Xu, Zechao Zhuang, Ting Zhu, Dongyuan Zhao, Liang Zhou, Liqiang Mai. Energy Storage Mater. 2018, 13, 112-118.
- Wei Teng, Zhangxiong Wu, Dan Feng, Jianwei Fan, Jinxiu Wang, Hao Wei, Mingjuan Song, Dongyuan Zhao. Environ. Sci. Technol., 2013,47, 8633-8641.
- Yong Liu, Renchao Che, Gang Chen, Jianwei Fan, Zhenkun Sun, Zhangxiong Wu, Minghong Wang, Bin Li, Jing Wei, Yong Wei, Geng Wang, Guozhen Guan, Ahmed A. Elzatahry, Abdulaziz A. Bagabas, Abdullah M. Al-Enizi, Yonghui Deng, Huisheng Peng, Dongyuan Zhao. Sci. Adv. 2015 ,1, e1500166.
- Xiaomin Li, Lei Zhou, Yong Wei, Ahmed Mohamed El-Toni, Fan Zhang, Dongyuan Zhao. J. Am. Chem. Soc. 2014, 136, 15086-15092.
向阳 翟
