A novel PVDF-TiO2@g-C3N4 composite electrospun fiber for efficient photocatalytic degradation of tetracycline under visible light irradiation

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

“…Previous studies have been recorded on the development of various heterojunction photocatalysts for tetracycline photodegradation under light illumination (Guo et al 2019a ; Yan et al 2019 ; Zheng et al 2021 ). Therefore, it is necessary to assess their practical performance to validate their efficiency in removing tetracycline.…”

“…Antibiotics are one of the most emergent pollutants in natural aqueous environments worldwide due to the increased antibiotic abuse, resulting from the increased demand of the pharmaceuticals and the rapid development of the drug and medical industry (Akhil et al 2021 ; Kumar et al 2021 ; Madhura et al 2018 ; Shi et al 2019 ; Wei et al 2020 ; Yang et al 2021b ). Tetracycline, one of the highly effective broad-spectrum prescribed antibiotics, is extensively used in the therapeutic treatment, and livestock and poultry industry (Daghrir and Drogui 2013 ; Peng et al 2021 ; Zheng et al 2021 ). Nevertheless, tetracycline gets into the environment through urine and feces since it is incompletely absorbed in the body and has poor metabolic transformation (Barhoumi et al 2017 ; Guo et al 2019a ).…”

A visible light active, carbon–nitrogen–sulfur co-doped TiO2/g-C3N4 Z-scheme heterojunction as an effective photocatalyst to remove dye pollutants

“…The photocurrent density is closely related to the lifetime of charge carriers under illumination. 49 The hole–electron pairs have higher separation efficiency indicating an enhanced lifetime of charge carriers in the CNS-TiO 2 /g-C 3 N 4 -2, which implies that the CNS-TiO 2 /g-C 3 N 4 -2 heterojunction could suppress the recombination of photogenerated holes and electrons. The same result could be found in EIS spectra, as shown in Fig.…”

On the Versatile Role of Electrospun Polymer Nanofibers as Photocatalytic Hybrid Materials Applied to Contaminated Water Remediation: A Brief Review

“…Zheng and coworkers reported the same blend of PVDF/PVP to prepare a novel composite material with high photocatalytic activity starting with the nanofibers of the blend with the immobilized nanoparticles of the core–shell structure of the photocatalyst TiO 2 @g-C 3 N 4 (TCN) [ 44 ]. For the preparation of the nanofibers, PVDF and PVP were dissolved in a DMAC/acetone solvent mixture (v:v = 1:1) in the ratio PVDF (wt.%):PVP (wt.%) = 8%:2%.…”

“…With different magnification. (Reprinted from the work of Zheng et al [ 44 ]. Copyright 2021, with permission from Elsevier).…”