Titanium Phosphate Nanoplates Modified With AgBr@Ag Nanoparticles: A Novel Heterostructured Photocatalyst With Significantly Enhanced Visible Light Responsive Activity

Abstract

AgBr@Ag modified titanium phosphate composites were fabricated through a two-step approach. The prepared samples were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The optical properties of the composites were characterized by using UV-vis diffuse reflectance spectroscopy. The photocatalytic activities of the composites were investigated on the degradation of Rhodamine B and ciprofloxacin under visible light irradiation. AgBr@Ag/titanium phosphate was determined to exhibit considerably higher photocatalytic activity than the corresponding individual components. The mechanism on the enhancement of the photocatalytic activity was proposed based on the results of photoluminescence spectra and photocurrent measurements. Furthermore, the possible photocatalytic mechanisms of organic compounds degradation were also proposed.

Shape tailoring of AgBr microstructures: effect of the cations of different bromide sources and applied surfactants

“…10b) in the samples. 63 Although no bromate was observed in the AgBr_-LiBr_PVP sample, the sample series was veried and it turned out that bromate was absent from the sample. Because MO was used as a model pollutant, we investigated if sulfur could be found on the surface of the samples aer degradation.…”

A Mini Review on Borate Photocatalysts for Water Decomposition: Synthesis, Structure, and Further Challenges

“…Molecules 2024, 29, x FOR PEER REVIEW 2 of 21 compounds [10][11][12], and even organic-inorganic complexes [13,14]. From the periodic table of elements, these photocatalysts can be further classified as halates [15,16], oxides [17,18], sulfides [19,20], selenides [21,22], nitrides [23,24], phosphates [25,26], carbon materials [27,28], borates [11,29], tantalates [30,31], niobates [32,33], tungstates [34][35][36], etc. Among them, the borates are new photocatalysts that have emerged in the last decade or so and have attracted much attention because of their rich structures.…”

“…Molecules 2024, 29, 1549 2 of 22 oxides [17,18], sulfides [19,20], selenides [21,22], nitrides [23,24], phosphates [25,26], carbon materials [27,28], borates [11,29], tantalates [30,31], niobates [32,33], tungstates [34][35][36], etc. Among them, the borates are new photocatalysts that have emerged in the last decade or so and have attracted much attention because of their rich structures.…”

Silver adsorption on biochar produced from spent coffee grounds: validation by kinetic and isothermal modelling

“…For silver ions, Ag 3d 5/2 and Ag 3d 3/2 orbitals can be further divided into 368.56/369.34 and 374.54/375.29 eV, respectively [81]. The peaks at the binding energy of 368.56/369.34 eV can be attributed to the presence of Ag + in the biochar, while peaks at 374.54/375.29 eV can be ascribed to metallic Ag 0 [82]. According to Table S10, 34.60% and 6.54% of the atomic concentration of Ag + were reduced to metallic Ag 0 and Ag 2+ , respectively.…”