Mechanistic investigation of photocatalytic degradation of organic dyes by a novel zinc coordination polymer

Abstract

Mechanistic presentation of the photocatalytic degradation of organic dye molecules by absorbing UV-vis light energy that spans the florescent compound TIPA's HOMO to LUMO band gap.

Synthesis and characterization of a mononuclear zinc(ii) Schiff base complex: on the importance of C–H⋯π interactions

“…[7][8][9][10] Many zinc(II) complexes are shown to have the ability to degrade organic dyes in aqueous solution. [11][12][13] To show strong uorescence is a typical behaviour of any zinc(II) complex, and the uorescence intensity usually decreases in presence of different nitroaromatic compounds. [14][15][16][17] So, many zinc(II) complexes have been used for the detection of nitroaromatic explosives by turn off uorescence response.…”

Multifaceted properties of an engineered three-dimensional Zn(ii)–metal–organic coordination polymer: synthesis, crystal structure, efficient photocatalytic degradation of an organic dye and selective luminescent sensing

“…This ZnCP was combined with a solution containing 1.8 mM concentrations of various scavengers, namely benzoic acid (BA), a scavenger for OH radicals, potassium iodide (KI) for e À , benzoquinone (BQ) for O 2 À radicals, and ammonium oxalate (AO) for hole (h + ). 44,45 The outcomes presented in Fig. 6(a) revealed that the most significant reduction in the photocatalytic rate was achieved by using BQ (67%) followed by KI (86.57%) compared to the 99.52% degradation observed in the blank (absence of scavenger).…”

Is degradation of dyes even possible without using photocatalysts? – a detailed comparative study

“…Diffusion of cOH* species away from the surfaces allows the formation of free cOH radicals, which are important components in the removal of organic pollutants. 40,41 In the mechanism, e − and h + have a major role to play. The involvement of radicals (ROS) is also supported by the scavenging experiment (Section 3.5).…”