Dissertation > Excellent graduate degree dissertation topics show

Synthesis and Biomolecular Adsorption of Mesoporous Silica Materials

Author: ZhangHe
Tutor: BaoXinHe
School: Dalian Institute of Chemical Physics
Course: Physical and chemical
Keywords: Mesoporous materials alkane morphology pore length protein adsorption
CLC: O647.31
Type: PhD thesis
Year: 2007
Downloads: 904
Quote: 1
Read: Download Dissertation


Due to the uniform pore structure and high surface areas, ordered mesoporous materials (e.g., MCM-41, SBA-15 etc.) have been studied extensively in the fields of catalysis, separation, adsorption, etc. Methods to tune the morphology, pore size and particle size of the mesoporous materials, as well as how to incorporate heterogeneous atoms (e.g., Al, Ti, etc.) into the framework have become a hot issue for the purpose of their practical applications. Particularly, mesoporous materials with short & open channels have been extensively investigated because they are more favorable to the mass transfer.Current work mainly focused on the construction and application of functional mesoporous materials, especially in the bio-related fields. The details are as follows: (1) Tailoring pore size of MCM-41 was investigated by using different alkali source, and organic amines were found to be more effective in expanding pore size than inorganic ammonia. At the same time, by using different approaches, aluminum containing MCM-41 mesoporous materials were obtained, and their structure transformations during the high-temperature hydrothermal treatment were also studied. (2) Alkanes with different chain length (C6-C12) have been used as cosolvents to tune the morphology, structure, pore length of highly ordered SBA-15. As a result, short-pore mesoporous materials with diverse morphologies, such as columns, bunches, films, hierarchical hollow spheres, etc. have been constructed successfully. (3) An improved“pH-adjusting”method wasfound to be effective in the incorporation of aluminum into the frameworks of mesoporous silicas. 27Al MAS NMR and 27Al MQ MAS NMR have been used to monitor the evolution of aluminum microenviroments during the whole incorporation process. Short-pore SBA-15 with highly symmtric tetrahedral-coordinate aluminum has been constructed. (4) Adsorption behavior of different proteins (Lysozyme, BSA, trypsin, etc.) has been investigated over the functional materials with different pore sizes, morphologies and structures, many interesting results have been observed.

Related Dissertations

  1. Tongue Feature Extraction and Research of Fusion Classification,TP391.41
  2. The Properties of Laser Speckle Based on the Mathematical Morphology,O29
  3. Road extraction algorithm based on region segmentation of remote sensing image,TP751
  4. Research of Anomaly Detection Algorithms of Hyperspectral Imagery Based on Kernel Method,TP751
  5. Effects of Nitrogen Fertilizer on Morphological Development of Alfalfa Root,S541.9
  6. Studies on Leaf Epidermal and Pollen Micro-morphology and Geographical Distribution of the Genus Euonymus of Henan,Q944
  7. Sagitta Morephology, Distribution, Biology and Stock Assessment of Four Prlagic Species in the Mouth of Beibu Gulf,S932.4
  8. Technology of Blood Vessel Diameter Measurement Automatic Based on Digital Image Processing,R310
  9. The Evolvement of Quartzs and Phytoliths in Basalt-Derived Chronosequence Soils in Tropics Area of China,S153
  10. Study on the Morphology, Physiology and QTLS Mapping of a Dwarf Mutant Ari1327 from Cotton (Gossypium Hirsutum L.),S562
  11. Radiation Transfer Characteristics and Radiation Use Efficiency of Rice,S511
  12. Physiological Functional Identification of Rice Phosphate Transporter OsPT4,S511
  13. Studies on Aphid Resistance Identification, Resistance Related Mechanisms and LLA Gene Transformation of Cut Chrysanthemum,S682.11
  14. The Application of Ant Colony Algorithm in Meteorological Satellite Cloud Pictures Segmentation,TP391.41
  15. Effects of Mannose-oligosaccharide on Intestinal Morphology and Bacterial Community in Gastrointestinal Tract of Broiler Chickens,S831.5
  16. A Study of the Relationship between Ultrasound Images of Masicatory Muscle and Caraniofical Morphlogy of Young Males with Nomal Occlusion,R783.5
  17. Genotypic Variation for Root Morpha and Potassium Accumulation in Maize Inbred Lines under Potassium Stress Condition,S513
  18. Cationic Microemulsion-mediated Synthesis of MFI Zeolite,TQ424.25
  19. Influence of Various PH and the Treating Time on Mechanical Property and Surface Structure of Ni-ti Orthodontic Wire,R783.5
  20. Implanted in mouse endometrium during early morphological and Galectin-3, expression of integrin α4,R321
  21. New aza- carbene complexes immobilized palladium and catalytic chlorinated aromatic Suzuki coupling reaction,O643.32

CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > The physical chemistry of surface phenomena > Adsorption > Adsorption theory
© 2012 www.DissertationTopic.Net  Mobile