2022年1月15日 · Considering the excellent broadband absorption and excellent photoelectric of reduced graphene oxide (rGO), we combined graphene oxide (GO) with two monomers of a desired COF to synthesize rGO-based covalent organic framework (named rGO-TTF-BN) through solvothermal reaction, and an amidoxime modified rGO-TTF-BN (named rGO-TTF-BN-AO) was ...

2023年9月10日 · The composites rGO@COF exhibit low-enough resistance to be measured as chemiresistors, demonstrating enhanced gas sensing performance than pristine rGO. In particular, rGO@COF sensors achieve 2.7 times higher sensitivity toward NO 2 and a dramatically reduced response time from 234 to 32 s compared to rGO, which can be attributed to …

2022年3月1日 · Covalent organic frameworks (COFs) are a new type of visible-light-driven photocatalysts, while effectively improving the separation and transfer of light-induced charges is of the key point to further enhance their activity.

2023年5月15日 · A covalent organic framework/reduced graphene oxide composite (COF/rGO) was fabricated by facile ultrasonic self-assembly strategy and further coated onto stainless-steel wire by physically adhesion for headspace solid-phase microextraction (HS-SPME) of polycyclic aromatic hydrocarbons (PAHs) prior to their determination by gas chromatography ...

2020年9月18日 · In this study, COF/rGO composites are prepared by a hydrothermal approach, which yield 3D, hierarchically porous, ultralight, and monolithic structures. These composite materials are further...

2023年12月15日 · By integrating BP and rGO into the TpPa-1-COF, we propose a strategy to construct the high-low heterojunction with electron acceptor to improve the photocatalytic activity and provide a two-step photogenerated electron transfer mechanism.

2022年5月31日 · An ultrathin anionic covalent organic framework (COF) was constructed homogeneously on the surface of a graphene template via a facile hydrothermal method. Compared with bulk COF powder, the anionic ultrathin COF exhibited the ability to remove cationic organic dyes of different sizes with higher efficiency.

2020年9月28日 · 基于以上问题，来自 德国柏林工业大学Arne Thomas教授团队 通过水热法合成的COF/还原氧化石墨烯（rGO）气凝胶。 COF/rGO气凝胶显示出优异的吸收能力，对于有机溶剂吸附能力大于200 g/g，可用于从水中去除各种有机液体。 此外，该气凝胶还可以作为超级电容器装置的活性材料，在0.5 A g-1时可提供269 F g-1的高电容， 并在5000次循环中具有良好的循环稳定性。 相关成果以“Ultralight covalent organic framework/grapheme aerogels with hierarchical …

Covalent organic frameworks (COFs), crystalline materials constructed from organic molecules connected by covalent bonds, offer a promising solution due to their high porosity, stability, and customizable properties.

共价有机骨架 (COFs)是一种新型的可见光驱动光催化剂，而有效地改善光生电荷的分离和传输是进一步提高其活性的关键。 图1. WO3@TpPa-1-COF/rGO复合材料的制备。 文章要点1：在本文中，通过原位腐蚀将大块WO3变成超细纳米结构，作者制备出一种新型的 COF基核壳Z型异质结WO3@TpPa-1-COF；随后通过对含有WO3@TpPa-1-COF的GO溶液进行简单的一锅光还原策略，制备出 一种WO3@TpPa-1-COF/rGO三元复合材料。