Journal article Open Access

X-Ray Absorption Spectroscopy of TiO2 Nanoparticles in Water Using a Holey Membrane-Based Flow Cell

Petit, Tristan; Ren, Jian; Choudhury, Sneha; Golnak, Ronny; Lalithambika, Sreeju SN; Tesch, Marc F; Xiao, Jie; Aziz, Emad F


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{
  "note": "This project was mainly funded by the Volkswagen Foundation (Freigeist Fellowship No. 89592).", 
  "DOI": "10.1002/admi.201770119", 
  "container_title": "Advanced Materials Interfaces", 
  "title": "X-Ray Absorption Spectroscopy of TiO2 Nanoparticles in Water Using a Holey Membrane-Based Flow Cell", 
  "issued": {
    "date-parts": [
      [
        2017, 
        12, 
        8
      ]
    ]
  }, 
  "abstract": "<p>Many applications of TiO2 nanoparticles, such as photocatalytic water splitting<br>\nor water remediation, occur in aqueous environment. However, the<br>\nimpact of solvation on TiO2 electronic structure remains unclear because<br>\nonly few experimental methods are currently available to probe nanoparticle&ndash;<br>\nwater interface. Soft X-ray absorption spectroscopy has been extensively<br>\nused to characterize the electronic structure of TiO2 materials, but so far<br>\nonly in vacuum conditions. Here, oxygen K edge and titanium L edge X-ray<br>\nabsorption spectroscopy characterization of TiO2 nanoparticles measured<br>\ndirectly in aqueous dispersion is presented. For this purpose, a new method<br>\nto probe nanomaterials in liquid using a holey membrane-based flow cell is<br>\nintroduced. With this approach, the X-ray transmission of the membrane is<br>\nincreased, especially in the water window, compared to solid membranes.</p>", 
  "author": [
    {
      "family": "Petit, Tristan"
    }, 
    {
      "family": "Ren, Jian"
    }, 
    {
      "family": "Choudhury, Sneha"
    }, 
    {
      "family": "Golnak, Ronny"
    }, 
    {
      "family": "Lalithambika, Sreeju SN"
    }, 
    {
      "family": "Tesch, Marc F"
    }, 
    {
      "family": "Xiao, Jie"
    }, 
    {
      "family": "Aziz, Emad F"
    }
  ], 
  "page": "1700755", 
  "volume": "4", 
  "type": "article-journal", 
  "issue": "23", 
  "id": "1116277"
}
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