Facile fabrication of freestanding all-carbon activated carbon membranes for high-performance and universal pollutant management,Journal of Materials Chemistry A

当前位置： X-MOL 学术 › J. Mater. Chem. A › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Facile fabrication of freestanding all-carbon activated carbon membranes for high-performance and universal pollutant management
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2017-08-31 00:00:00 , DOI: 10.1039/c7ta02854g
Kaijie Yang _{1,

2,

3,

4,

5} , Xiaoying Zhu _{1,

2,

3,

4,

5} , Baoliang Chen _{1,

2,

3,

4,

5}

Affiliation

Freestanding all-carbon activated carbon membranes (ACMs) were fabricated for the first time in an environmentally friendly manner using reduced graphene oxide (rGO) as a coupling agent for activated carbon particles. Due to the tunable noncovalent π–π interactions between the AC particles and rGO nanosheets, the ACMs not only displayed unique chemical and thermal stabilities but also had controllable pore sizes over a wide range, from microns to nanometers, and could be applied to pollutant management in both water and organic solvents. The powerful adsorption capability of activated carbon was well preserved in the ACMs. The ACMs can exclude micrometer and nanometer particles (such as bacteria, silica nanoparticles and silver nanoparticles) with 100% removal efficiency; adsorb dissolved pollutants with an excellent saturation capacity of 7.7 mg g⁻¹ for Ag⁺, 235.2 mg g⁻¹ for methylene blue, and higher than 410 mg g⁻¹ for phenanthrene; and simultaneously remove multiple pollutants from both water and organic solvents through a one-step filtration process while maintaining high water flux. The ACM surfaces possess high surface energy and exhibit superhydrophilic properties. Thus, the novel ACMs, with combined sieving and adsorption properties, have great potential for universal pollutant management and industrial chemical separation.

中文翻译：

轻松制造用于高性能和通用污染物管理的独立式全碳活性炭膜

使用还原性氧化石墨烯（rGO）作为活性炭颗粒的偶联剂，以环保的方式首次制造了独立式全碳活性炭膜（ACM）。由于AC颗粒和rGO纳米片之间存在可调的非共价π–π相互作用，因此ACM不仅显示出独特的化学和热稳定性，而且在从微米到纳米的宽范围内都具有可控制的孔径，并且可以应用于污染物管理在水和有机溶剂中。活性炭的强大吸附能力在ACM中得到了很好的保留。ACM可排除100％去除效率的微米级和纳米级颗粒（例如细菌，二氧化硅纳米颗粒和银纳米颗粒）；吸附溶解的污染物，其出色的饱和容量为7.7 mg g^-1用于银⁺，235.2毫克克^-1亚甲基蓝，和高于410毫克克^-1为菲; 同时通过一步过滤过程同时从水和有机溶剂中去除多种污染物，同时保持高水通量。ACM表面具有高表面能并表现出超亲水性。因此，具有筛分和吸附特性的新型ACM具有广泛的污染物管理和工业化学分离潜力。

更新日期：2017-09-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11