Periodic mesoporous titanium phosphonate (PMTP-1) materials were synthesized and used as an adsorbent for the removal of a cationic dye, methylene blue (MB), from aqueous solutions. The PMTP-1 powder has a uniform mesopore size of 2.9 nm with high surface area of 606 m 2 /g. The batchdye adsorption experiments were performed under various conditions including contact time, adsorbent dose, initial MB concentration, solution pH and temperature. The adsorption equilibrium was achieved after 30 minutes of contact time, and the adsorption of MB on PMTP-1 was best fitted to the Langmuir isotherm model with the maximum monolayer adsorption capacity of 617.28 mg/g. Thermodynamic parameters such as ∆G, ∆H and ∆S were calculated. Results of kinetic studies indicated that the adsorption process followed the pseudo-second-order model, which suggests that the process might be a chemisorption. The study results indicate that the PMTP-1 powder could be used as an efficient adsorbent for the removal of textile dyes from effluents.

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The adsorption of fibrinogen can be used as a quick indicator of surface haemocompatibility because of its prominent role in coagulation and platelet adhesion. In this work the molecular interaction between fibrinogen and a modified titanium oxide surface/platelet has been studied by quartz crystal microbalance with dissipation (QCM-D) in situ. In order to further characterize the conformation of adsorbed fibrinogen, αC and γ-chain antibody were used to check the orientation and denaturation of fibrinogen on solid surface. QCM-D investigations revealed the fibrinogen have the trend to adsorb on hydrophilic surface in a side-on orientation by positively charged αC domains, which would reduce the exposure of platelet bonding site on γ chain and enable less platelet adhesion and be activated. These observations suggest that certain conformations of adsorbed fibrinogen are less platelet adhesive than others, which opens a possibility for creating a non-platelet adhesive substrates.

A microimpinging stream reactor (MISR) at the size of 1 mm was built with a commercial T-junction and steel capillaries for the preparation of CuO/ZnO/Al 2 O 3 catalysts. The coprecipitation of catalyst precursors in MISR was conducted under precisely controlled concentration, pH and volumetric flow rate (V A ), followed by the conventional postprecipitation steps. TEM images showed that the coprecipitation in MISR would generate mostly round catalyst particles with a mean size of 8−10 nm; whereas slightly larger and irregular particles were produced in conventional batch route. In addition, the CuO/ZnO/Al 2 O 3 catalysts prepared in MISR possessed larger BET surface area (S BET ), specific copper surface area (S Cu ) and pore volume as well as better Cu/Zn dispersion when compared to those produced in batch route. It was also found that during the preparation of CuO/ZnO/Al 2 O 3 catalysts in MISR, the reactant concentration (C mn ) and volumetric flow rates (V A ) had great influences on the structures and properties of the precursors and the final catalysts. The catalytic performance evaluation by CO hydrogenation to methanol showed that both the catalytic activity and selectivity of CuO/ZnO/Al 2 O 3 catalysts prepared in MISR were superior to those produced in batch route.