Photodegradation of naproxen using CuZnAl-layered double hydroxides as photocatalysts

Abstract

Naproxen (NPX) as a typical pharmaceutical and personal care products (PPCPs) is frequently detected in waters and difficult to remove effectively by conventional methods. Layered double hydroxides as highly Efficient...

Layered Double Hydroxide-Based Photocatalysts for the Removal of Emerging Contaminants: Progress in Past Ten Years

“…The best degradation efficiency for diclofenac acid achieved was 93% after 120 min [67]. CuZnAl−LDHs with different Zn/Cu/Al ratios was manufactured by the co-precipitation method and were successfully applied for the photodegradation of naproxen (NPX) [68]. Compared to ZnAlTi−LDHs and CuZnAl−LDHs, ZnNiFe−LDHs exhibited greater light adsorption capabilities, lower band gaps, and good surface dispersion, producing remarkable photocatalytic performance without any pre-processing or calcination [44].…”

Bi-doped ZnAl-layered double hydroxides with enhanced photocatalytic activity for ciprofloxacin degradation: the synergistic effect of Bi doping and oxygen vacancies

“…The energy band gap was reduced by 2.2 eV, and the ultrasonically catalyzed degradation of the pesticide imidacloprid was increased from 16% to 73%. 28 The doping of Cu d+ increased the oxygen vacancies in ultrathin ZnAl-LDH nanosheets, effectively promoting the adsorption and charge separation and transfer of N 2 molecules for the effective reduction of N 2 . 29,30 Rao et al found that the doping of unbalanced ions in the lattice led to the formation of oxygen vacancies (OVs) in the tissue nanoparticles, resulting in a highly stable removal effect.…”