Microwave-assisted synthesis of UIO-66 and its adsorption performance towards dyes

作者：Li Yafeng^*; Liu Yan; Gao Wenyuan; Zhang Limei; Liu Wei; Lu Jingjing; Wang Zhen; Deng Yun Jiao

来源：CrystEngComm, 2014, 16(30): 7037-7042.

DOI：10.1039/c4ce00526k

In this paper, a microwave-assisted method in the presence of an additive has been employed to quickly and prepare UIO-66 (MWHAc-UIO-66) in high yield. The microwave/additive method gives rise to a full octahedral morphology of similar to 250 nm particles and a highest surface area 1533.53 m(2) g(-1), which is confirmed by the surface area of MWBA-UIO-66 (1661.01 m(2) g(-1)), prepared with benzoic acid as the additive. The adsorption results for a low-concentration of acid chrome blue K show that MW-UIO-66 and MWHAc-UIO-66 have excellent adsorption abilities (similar to 98%), while HHAc-UIO-66 is also satisfactory (similar to 85%), which are far better than activated carbon. Moreover, the saturated adsorption amount of acid chrome blue K for MWHAc-UIO-66 can be up to similar to 15%. The adsorption of different dyes shows that MWHAc-UIO-66 is attractive to charged dyes. Reusability experiments indicate that sulfuric acid can facilitate dye desorption from MWHAc-UIO-66 instead of a base or salt.

• 出版日期2014
• 单位长春工业大学