Cu–Organic framework-derived V-doped carbon nanostructures for organic dye removal

Abstract

In this study, a novel MOF has been constructed as a precursor for the preparation of carbon nanostructures. Moreover, we have used V metal as a doping agent to boost the adsorption and photodegradation activity of the MOF-derived carbon nanostructures.

Fabrication of two 2D Cu-based coordination polymers via a secondary ligand adjustment and a derived Cu/Cu2O heterojunction for an enhanced dye removal capacity

“…9 The photocatalytic degradation rates of MB, RhB, MO and CR at different time points during exposure to Cu-CP-1 (a), Cu@C-1 (b), Cu@N-1 (c), Cu@S-1 (d), Cu-CP-2 (e), Cu@C-2 (f), Cu@N-2 (g) and Cu@S-2 (h). in a Cu-CP-derived carbon nanostructure (C-V-1) which showed photocatalytic degradation rates of 88.14% for MB, 79.80% for RhB, 71.31% for MO, and 71.19% for CR after 4 h. 43 Comparing the above with this work, Cu@N-2 has a better photocatalytic activity and selectivity for dye removal from water than the that of C-V-1. Therefore, heteroatom doping, especially the formation of graphite-type carbon sheets, has become one of the most effective ways to further improve the photodegradation activity of Cu-based materials.…”

“…42 Comparing with the above with this work, Cu@N-2 has a better adsorption performance for dye removal from water than that of C-Mo-1 . Meanwhile, we had designed a facile method to synthesize a V-doped mixture of Cu 2 O and Cu nanoparticles encapsulated in a Cu-CP-derived carbon nanostructure ( C-V-1 ) which showed photocatalytic degradation rates of 88.14% for MB, 79.80% for RhB, 71.31% for MO, and 71.19% for CR after 4 h. 43 Comparing the above with this work, Cu@N-2 has a better photocatalytic activity and selectivity for dye removal from water than the that of C-V-1 . Therefore, heteroatom doping, especially the formation of graphite-type carbon sheets, has become one of the most effective ways to further improve the photodegradation activity of Cu-based materials.…”

Influence of anions on the synthesis of Cu(i)-based coordination polymers along with a series of derived materials for selective photocatalytic properties

“…50 A sharp diffraction peak can also be observed at about 26.00°for Cu-C-1/2 and Cu-N-1/2, which corresponds to crystalline carbon with (002) planes. 46 An XPS survey scan (Fig. 7a-e) confirms that the CPderived and CP-doping-derived materials contain Cu, C, N, O and the corresponding doping element from the heteroatomdoping processes.…”

“…45 Our group had also used Cl − and NO 3 − as two counter anions, which led to the Cu( ii ) ion displaying different coordination modes to construct two distinct Cu CP structures. 46 Furthermore, in the initial recipes, we were going to employ Cu–3-bpah to coordinate to other monovalent anions (such as CH 3 COO − , SCN − and ClO 4 − ). A rational approach to the design and synthesis of CPs is critical.…”

Ligand-induced synthesis of two Cu-based coordination polymers and derivation of carbon-coated metal oxide heterojunctions for enhanced photocatalytic degradation

“…In our previous work, we designed a facile method to synthesize a V-doped mixture of Cu 2 O and Cu nanoparticles encapsulated in a Cu-CP-derived carbon nanostructure ( C–V-1 ) which showed photocatalytic degradation rates of 88.14% for MB, 79.80% for RhB, 71.31% for MO, and 71.19% for CR after 4 h. 41 By comparing the above with this work, Cu@Mo-2 has better photocatalytic activity for dye removal from water than C–V-1 . Therefore, heteroatom doping, particularly the formation of metallic Cu and Mo 2 C, has become one of the most effective ways to further improve the photodegradation activity of carbon-based materials.…”