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{"title":"Visible Light-DrivennPhotocatalytic Degradation ofnMethylene Blue Dye Using a Highly Efficient Mg–Al LDH@g‑C<sub>3</sub>N<sub>4</sub>@Ag<sub>3</sub>PO<sub>4</sub> Nanocomposite","authors":"Ghazal Salehi (5470241), Mojtaba Bagherzadeh (822315), Reza Abazari (4857628), Mojtaba Hajilo (17826038), Davood Taherinia (2569138)","doi":"10.1021/acsomega.3c07326.s001","DOIUrl":"https://doi.org/10.1021/acsomega.3c07326.s001","url":null,"abstract":"The issue of waternresource pollution resulting from the dischargenof dyes is a matter of great concern for the environment. In thisninvestigation, a new ternary heterogeneous Mg–Al LDH@g-C<sub>3</sub>N<sub>4</sub><i>X</i>@Ag<sub>3</sub>PO<sub>4</sub><i>Y</i> (<i>X</i> = wt % of g-C<sub>3</sub>N<sub>4</sub> with respect to Mg–Al layered double hydroxide (LDH)nand <i>Y</i> = wt % of Ag<sub>3</sub>PO<sub>4</sub> loadednon Mg–Al LDH@g-C<sub>3</sub>N<sub>4</sub>30) nanocompositenwas prepared with the aim of increasing charge carrier separationnand enhancement of photocatalytic performance to degrade methylenenblue (MB) dye. The prepared samples were subjected to characterizationnvia Fourier-transform infrared spectroscopy, field emission scanningnelectron microscopy, energy-dispersive X-ray, transmission electronnmicroscopy, X-ray diffraction, UV–vis diffuse reflectance spectroscopy,nphotoluminescence, and photoelectrochemical analysis. It was observednthat in the presence of the composite of Mg–Al LDH and g-C<sub>3</sub>N<sub>4</sub>, the photocatalytic decomposition of MB undern150 W mercury lamp illumination increases significantly as opposednto Mg–Al LDH alone, and the Mg–Al LDH@g-C<sub>3</sub>N<sub>4</sub> level with Ag<sub>3</sub>PO<sub>4</sub> coating causesnthe complete degradation of MB to occur in less time. The outcomesnshow that the Mg–Al LDH@g-C<sub>3</sub>N<sub>4</sub>30@Ag<sub>3</sub>PO<sub>4</sub>5 nanocomposite demonstrated the highest photodegradationnactivity (99%). Scavenger tests showed that the two most effectivenagents in the photodegradation of MB are holes and hydroxyl radicals,nrespectively. Finally, a type II heterojunction photocatalytic degradationnmechanism for MB by Mg–Al LDH@g-C<sub>3</sub>N<sub>4</sub>30@Ag<sub>3</sub>PO<sub>4</sub>5 was proposed.","PeriodicalId":521998,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}