Synthesis of Magnetically Recoverable Ru/Fe3O4 Nanocomposite for Efficient Photocatalytic Degradation of Methylene Blue

Studies on Synthesis and Characterization of Fe3O4@SiO2@Ru Hybrid Magnetic Composites for Reusable Photocatalytic Application

“…Transition metal/oxide nanomaterials and also their composites exhibit excellent catalytic and photocatalytic activities [29][30][31][32]. The transition-based nanomaterials show desirable characteristics like large surface area to volume ratio compared to the bulk, well-controlled structures, and as semiconductors with wide band gaps, nontoxicity, and high stability in aqueous solution which make them useful not only in catalytic applications but also in a wide range of applications such as chemical sensing [33], electrochemical energy conversion and storage [34], solar cells [35], discrimination of racemic drugs [36], sustainable environmental remediation and pollutant sensing [37], and biological applications [38].…”

Influence of Different Capping Agents on the Structural, Optical, and Photocatalytic Degradation Efficiency of Magnetite (Fe3O4) Nanoparticles

“…The iron oxide nanoparticles prepared from TOP are also agglomerated with irregular shaped particles with a mean size of 4.4 nm ( Figure S1 ). The observed agglomeration of the as-prepared nanoparticles may be attributed to the fact that they aggregate to reduce their high surface energy or to the dipole–dipole interactions of magnetic nanoparticles [ 24 , 35 ]. The use of capping agents resulted in more dispersed and well-defined shapes of nanoparticles compared to uncapped nanoparticles ( Figure S2 ).…”

“…For MB dye, low degradation efficiencies of 10.3–24.5% were obtained at pH 2 and high degradation efficiencies of 72.6% for Fe 3 O 4 -OTA, 79.0% for Fe 3 O 4 -DDT, and 88.1% for Fe 3 O 4 -TOP were obtained at pH 10. The higher degradation efficiency of MB degradation at pH 10 can be attributed to the enhanced adsorption of MB dye molecules on the negatively charged catalyst surface, resulting in a strong interaction between the photocatalyst and the generated radicals, resulting in rapid degradation [ 35 ]. In contrast, at pH 2, the existence of additional h + in the reaction mixture made the catalyst surface more positive, inhibiting dye molecule adsorption due to columbic repulsion interactions, which resulted in a slower rate of radical generation and therefore degradation [ 59 ].…”

Photocatalytic Performance and Degradation Pathways of Z‐Scheme BiO2−X−Ag3PO4 Photocatalysts with Oxygen‐Deficient Structures

“…The following contents are provided in the supporting documents: LC-MS test conditions; MO degradation curves at different pH; Degradation curve of first-order kinetics of CIP; Cyclic test of TC; XPS of 1.5 BOA before and after cycling; TOC removal efficiency of Ag 3 PO 4 and 1.5 BOA for TC; Compare this paper with previous work, Cited references from text; [1][2][3][4][5] CIP and possible intermediate structures.…”

“…Since then, the photocatalytic technology has entered people's perspective. [4] Nowadays, photocatalysis technology is the most useful technology for sewage treatment and environmental remediation: it can use unlimited solar energy to degrade organic sewage, [5,6] and also can decompose to produce hydrogen. [7,8] Due to the low utilization of visible light by general photocatalysts, we often use various methods to improve the utilization of solar energy, such as doping, [9] semiconductor recombination, [10] precious metal deposition, [11] manufacturing defects [12,13] etc.…”