<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>46068</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1800216, 1</pageFirst>
    <pageLast>10</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>35</volume>
    <type>article</type>
    <publisherName>Wiley Online Library</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Discovering the determining parameters for the photocatalytic activity of TiO2 colloids based on an anomalous dependence on the speciﬁc surface area</title>
    <abstract language="eng">The photocatalytic (PC) performance of titanium dioxide (TiO2) nanoparticles strongly depends on their speciﬁc surface, the presence of crystal defects, their crystal phase, and the exposed crystal facets. In order to understand which of these factors contributes most signiﬁcantly to the PC activity of TiO2 colloids, all of them have to be individually analyzed. This study entails the synthesis of ﬁve anatase nanocrystal samples. By maintaining the same reactant ratios as well as hydrothermal sol–gel synthesis route and only varying the autoclaving time or temperature, different crystallite sizes are obtained under comparable experimental conditions. A decrease in PC performance with increase in speciﬁc surface area is found. Such an unexpected counterintuitive result establishes the basis for a better understanding of the crucial factors that ultimately determine the PC activity. These are investigated by studying nanocrystals bulk and surface structure and morphology using a selection of complementary analysis methods (X-ray photoelectron spectroscopy (XPS), X-ray absorption ﬁne structure (XAFS), X-ray diffraction (XRD)…). It is found that a change in the nanocrystal morphology from an equilibrium state truncated tetragonal bipyramid to a more elongated rod-like structure accompanied by an increase in oxygen vacancies is responsible for an augmented PC activity of the TiO2 nanocrystals.</abstract>
    <parentTitle language="eng">Particle &amp; Particle Systems Characterization</parentTitle>
    <identifier type="doi">10.1002/ppsc.201800216</identifier>
    <identifier type="issn">0934-0866</identifier>
    <identifier type="issn">1521-4117</identifier>
    <enrichment key="date_peer_review">27.09.2018</enrichment>
    <author>S. Wintzheimer</author>
    <author>Wojciech Szczerba</author>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>S. Kashiwaya</author>
    <author>A. Klein</author>
    <author>W. Jaegermann</author>
    <author>T. Toupance</author>
    <author>A. Shmeliov</author>
    <author>V. Nicolosi</author>
    <author>K. Heuzé</author>
    <author>K. Mandel</author>
    <author>S. Dembski</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ti-based colloids</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Photocatalysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAFS</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
</export-example>
