N-Doped porous graphitic carbon with multi-flaky shell hollow structure prepared using a green and ‘useful’ template of CaCO₃ for VOC fast adsorption and small peptide enrichment

Abstract

High N-doped porous graphitic carbons (S-NPGCs) with multi-flaky shell hollow structure were prepared by using CaCO as a green/useful template. S-NPGCs exhibit very fast adsorption for toluene (31 times that of HKUST-1) and effectively selective enrichment of small peptides with high inhibitory activity of angiotensin converting enzymes.

Green synthesis of nitrogen-doped multiporous carbons for oxygen reduction reaction using water-caltrop shells and eggshell waste

“…16 However, most existing methods for preparing nitrogen-doped carbon materials, e.g., the thermal decomposition of nitrogen-containing precursors over metals such as Fe, Co and Ni, lead to the presence of residual metal species or impurities in the synthesized carbons, which seriously degrade the ORR performance. [17][18][19][20] Several recent studies have shown that nitrogen-doped carbons can be prepared as an electrocatalyst material for ORR without any metal precursors. 21,22 Thus, metal-free materials, including nitrogen-doped carbons, have attracted growing interest as a catalyst material in recent years on account of their excellent ORR electrochemical properties, low cost, low side-reaction effects and good stability.…”

Synthesis and characterization of calcium carbonate whisker from yellow phosphorus slag

“…Because of its unique physical and chemical properties, precipitated calcium carbonate is widely used in chemical [1][2][3], food [4], and pharmaceutical industries [5] and in other fields [6,7]. The properties of materials are determined by their structure, and the crystal type and the morphology are the important factors of materials' structure.…”

Ultrafast Screening of a Novel, Moderately Hydrophilic Angiotensin-Converting-Enzyme-Inhibitory Peptide, RYL, from Silkworm Pupa Using an Fe-Doped-Silkworm-Excrement-Derived Biocarbon: Waste Conversion by Waste

“…Adsorption and separation strategies using porous materials, such as affinity separation, magnetic separation, and porous adsorption, facilitate the rapid screening of peptides with specific activity from protein hydrolysates. , Porous materials, as the core of the adsorption approach, can efficiently capture peptides with specific properties by their surface and pore physical properties. Jiang and co-workers prepared Fe 3 O 4 @SiO 2 @graphene microspheres to enrich bioactive peptides at low concentrations with high efficiency.…”