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Colloidal Template Synthesis of Nanomaterials by Using Microporous Organic Nanoparticles: The Case of C@MoS 2 Nanoadsorbents

2019; Wiley; Volume: 14; Issue: 18 Linguagem: Inglês

10.1002/asia.201900885

1861-4728

ShinYoung Kang, Chang Wan Kang, Dong Wook Kim, Yoon Myung, Jaewon Choi, Sang Moon Lee, Hae Jin Kim, Yoon‐Joo Ko, Seung Uk Son,

Advanced Photocatalysis Techniques

The so-called colloidal template synthesis has been applied to the preparation of surface-engineered nanoadsorbents. Colloidal microporous organic network nanotemplates (C-MONs), which showed a high surface area (611 m2 g-1 ) and enhanced microporosity, were prepared through the networking of organic building blocks in the presence of poly(vinylpyrrolidone) (PVP). Owing to entrapment of the PVP in networks, the C-MONs showed good colloidal dispersion in EtOH. MoS2 precursors were incorporated into the C-MONs and heat treatment afforded core-shell-type C@MoS2 nanoparticles with a diameter of 80 nm, a negative zeta potential (-39.5 mV), a high surface area (508 m2 g-1 ), and excellent adsorption performance towards cationic dyes (qmax =343.6 and 421.9 mg g-1 for methylene blue and rhodamine B, respectively).