A three-in-one strategy for facile fabrication of hierarchically porous n-doped carbons: enhanced CO 2 capture and tetra
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A three‑in‑one strategy for facile fabrication of hierarchically porous n‑doped carbons: enhanced CO2 capture and tetracycline removal Jie Yang1 · Jiangdong Dai2 · Jinsong He2 · Lulu Wang2 · Atian Xie2 · Yongsheng Yan2
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract The formation of high-quality hierarchically porous N-doped carbons with multi-scale pores, high specific surface area and large pore volume generally suffers from multistep complicated procedures. It still remains a great challenge to develop facile and effective approaches. Here, a novel three-in-one strategy (synergistic self-templating, self-activation and in-situ N-doping) was designed to fabricate hierarchically porous N-doped carbons (HPNCs) directly, via a one-pot carbonization using ethylenediaminetetraacetic acid tripotassium salt dehydrate (EDTA-3K) as the sole starting material. The as-obtained HPNCs exhibited 3D porous architecture, very high BET surface areas (e.g., 2787 m2 g−1), rich porosity and good nitrogen doping amounts, resulting in good C O2 capture capacity (e.g., 5.80 mmol g−1, at 273 K and 1.0 bar), and tetracycline adsorp−1 tion ability (e.g., 1092 mg g ). This discovery can provide a new concept for simply fabricating well-defined and unique functional porous carbons for various applications, such as sensor, energy storage and conversion, adsorption, separation, catalysis, bio-medicine, environmental protection. Keywords Self-templating · Self-activation · Hierarchically porous N-doped carbon · Tetracycline adsorption · CO2 capture
1 Introduction Carbonaceous materials, as a class of innovative multifunctional material, mainly including fullerene, graphene, carbon nanotube, carbon dot and porous carbons, have been utilized directly or as the multifunctional matrix in the multiple application fields, such as gas storage [1, 2], catalysis [3, 4], sensor [5–7], supercapacitor [8–10], battery [11, 12] and environmental remediation [13–16]. Due to their high BET surface area, large pore volume, electrical conductivity, and good chemical/physical stability, porous carbons have arouse widespread and increasing research upsurge. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10934-020-00946-5) contains supplementary material, which is available to authorized users. * Jiangdong Dai [email protected] 1
College of Civil Engineering and Architecture, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
2
Because microstructure generally plays an important role in the application performance of porous carbons, a series of novel ordered- or disordered- structured carbons were developed in the past decades, such as macroporous carbons [17], hollow carbons [18], mesoporous carbons [19], microporous carbons [20] and hierarchically porous carbons (HPCs) [21, 22]. Amongst
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