【摘 要】
：
Nitrogenization is an effective method for improving the capacitive deionization (CDI) per-formance of porous carbon materials.In particular,polymer organic frameworks with het-eroatom doping,containing an ordered pore structure and excellent electrochemi
【机 构】
：
Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control,School of Environment Scie
论文部分内容阅读
Nitrogenization is an effective method for improving the capacitive deionization (CDI) per-formance of porous carbon materials.In particular,polymer organic frameworks with het-eroatom doping,containing an ordered pore structure and excellent electrochemical sta-bility,are ideal precursors for carbon materials for high-performance CDI.In this study,a nitrogen-enriched micro-mesoporous carbon (NMC) electrode was fabricated by carboniz-ing a Schiff base network-1 at 500,600,and 700 ℃.Scanning electron microscopy,Fourier transform infrared spectroscopy,X-ray diffraction,N2 adsorption-desorption,the contact angle of water,cyclic voltammetry,and electrochemical impedance spectroscopy were used to characterize the morphological structure,wettability,Brunauer-Emmett-Teller surface areas,and electrochemical performance of the NMCs.The results showed that the NMC carbonized at 600℃ achieved the best specific capacitance (152.33 F/g),as well as a high electrosorption capacity (25.53 mg/g) because of its chemical composition (15.57％ N) and surface area (312 m2/g).These findings prove that NMC is viable as an electrode material for desalination by high-performance CDI applications.
其他文献
In this study,a graphitic carbon nitride (g-C3N4) based ternary catalyst CuO/CuFe2O4/g-C3N4 (CCCN) is successfully prepared thorough calcination method.After confirming the structure and composition of CCCN,the as-synthesized composites are utilized to ac
This research investigated the effects of ciprofloxacin (CIP) (0.5,5,and 20 mg/L) on SBR sys-tems under different carbon source conditions.Microbial community abundance and struc-ture were determined by quantitative PCR and high-throughput sequencing,resp
Eutrophication and harmful cyanobacterial blooms threaten water resources all over the world.There is a great controversy about controlling only phosphorus or controlling both nitrogen and phosphorus in the management of lake eutrophication.The primary ar
Perfluooroctane sulfonate (PFOS) is a persistent organic pollutant (POP) and emergent con-taminant that are widespread in the environment.Understanding the mechanisms control-ling the distribution of PFOS and its isomers between hydrargillite and the wate
A pilot-scale multistage constructed wetland-pond (MCWP) system with a “pre-ecological oxidation pond,two-stage horizontal subsurface flow constructed wetland (HSCW) and sur-face flow constructed wetland (SFCW) as the core and postsubmerged plant pond” as
Soils and waters are heavily contaminated by antimony in Xikuangshan (XKS) mine area.It is widely accepted that oxidative dissolution of sulfide minerals and aqueous dissolution are the most prevalent geochemical mechanisms for the release of Sb to the en
Marine bacterial community plays a vital role in the formation of the hypoxia zone in coastal oceans.Yet,their dynamics in the seasonal hypoxia zone of the Bohai Sea (BHS) are barely studied.Here,the 16S rRNA gene-based high-throughput sequencing was used
The effects of Ca2+ on membrane fouling and trace organic compounds (TrOCs) removal in an electric field-assisted microfiltration system were investigated in the presence of Na+alone for comparison.In the electric field,negatively charged bovine serum alb
Wastewater reclamation and reuse is an increasing global project,while the reclamation treatment on wastewater does not completely remove all pollutants in water.The residual pollutants in reclaimed water would cause potential risk on human health and eco
Arsenic and sulfur mineralization is a natural phenomenon occurring in hydrothermal sys-tems where parameters like temperature and organic matter (OM) can influence the mo-bilization of the toxic metalloid in marine environments.In the present study we an