A well-known deep-blue emitting iridium（III） complex was selected for deuterium isotope effect evalua- tion, both on deuterated locations and numbers, through theoretical investigation. It was revealed that the containment of the d site deuteriation of ancillary ligand picolinate enabled the non-radiative deactivation process to be repessed, and thereby improving the quantum efficiency through such a simple and controllable approach.
Using the rigid 3,3-bis（4-hydroxyphenyl）-2-（4-tritylphenyl）isoindolin-l-one with polar functional groups as a building block and formaldehyde dimethyl acetal（FDA） as crossinglinker, a new hyper-crosslinked polymer （HCP） was synthesized via Friedel-Crafts alkylation reaction promoted by anhydrous FeC13. The synthesized HCP is insoluble in boiled water and common organic solvents. Moreover, it shows a good CO2 capture capacity even if its surface area is not very high, and the absolute COz uptake capacity of it is 3.05 mmol/g. This can be attributed to the introduction of polar hydroxyl and lactam groups into the skeleton of the polymer, which provides effective adsorp- tion sites for COz. In addition, the synthesized HCP also exhibits good adsorption capacity for organic dyes in water, especially for crystal violet.
3-Aminopropyltriethoxysilane functionalized worm-like mesoporous silica monolithic（WMSM-NH2） was prepared and used as a new regenerable adsorbent for the removal of Cu2＋ ions. The analysis results show that the WMSM-NH2 monolithic had a high efficiency value of 99.3% for Cu2＋ remediation when the Cu2＋ solution was at an initial concentration of 10.32 mg/L. The regeneration study of the WMSM-NH2 monolithic presented that the adsorp- tion efficiency of 89.0% was remained and a mass of 92.0% was left after seven adsorption-desorption cycles were executed. The monolithic material with high resistance to the acid and good mechanical stability can facilitate the operations of adsorption and regeneration of the adsorbent.
ZHAO Da-zhou JING Shu-bo XU Jia-ning YANG Hong ZHENG Wei SONG Tian-you ZHANG Ping
