Issue 13, 2020

NH3/H2O-mediated proton conductivity and photocatalytic behaviour of Fe(ii)-hydroxyphosphonoacetate and M(ii)-substituted derivatives

Abstract

Synthesis redesign and derivatisation of Fe(II)-hydroxyphosphonoacetate, incorporating different ammonia loads and M(II) isomorphic substitutions (M = Mn, Co and Zn), have been implemented. The NH3 adsorption led to materials with enhanced proton conductivity, up to ∼10−3 S cm−1, although it caused a progressive amorphization. The Pair Distribution Function (PDF) analysis for this material confirmed the loss of crystallinity but the local order appeared to be maintained. The parent compound was shown to be an efficient photocatalyst for phenol, 4-chlorophenol and methylene blue even under mild conditions, with TOC removal of 75–90% at 50–150 min of reaction. The M(II)-substituted derivatives displayed similar behaviour in properties, and therefore their multifunctional character, as the parent compound, although with slightly reduced capabilities.

Graphical abstract: NH3/H2O-mediated proton conductivity and photocatalytic behaviour of Fe(ii)-hydroxyphosphonoacetate and M(ii)-substituted derivatives

Supplementary files

Article information

Article type
Paper
Submitted
30 Dit 2019
Accepted
27 Kax 2019
First published
02 Qun 2020

Dalton Trans., 2020,49, 3981-3988

NH3/H2O-mediated proton conductivity and photocatalytic behaviour of Fe(II)-hydroxyphosphonoacetate and M(II)-substituted derivatives

I. R. Salcedo, M. Bazaga-García, A. Cuesta, E. R. Losilla, K. D. Demadis, P. Olivera-Pastor, R. M. P. Colodrero and A. Cabeza, Dalton Trans., 2020, 49, 3981 DOI: 10.1039/C9DT04210E

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