Scholarlink

<p>High performance composite photocatalyst is a hotspot in the photocatalysis researches. In this study, a cutting-edge CeO<sub>2</sub>/rutile composite photocatalyst with tiny CeO<sub>2</sub> concentration of 1.28 wt% was synthesized via a simple photocatalytic method. This as-obtained CeO<sub>2</sub>/rutile catalyst (CeO<sub>2</sub>/TiO<sub>2</sub>-1:1) exhibited an enhanced wastewater degradation and improved water splitting H<sub>2</sub> evolution ability, with 95.83 % removal ratio for methylene blue (MB), 72.84% for tetracycline (TC) and 87.57 µmol/g H<sub>2</sub> evolution capacity. Light irradiation and 2-coordinated oxygen vacancies (OV<sub>2C</sub>) on rutile surface promoted the Ce<sup>3+</sup> adsorption on the rutile (110) facet as DFT results shown. The CeO<sub>2</sub>/rutile type-II heterojunction was evidenced to promote the migration of e<sup>−</sup>/h<sup>+</sup> and generation of ·OH/·O<sub>2</sub><sup>−</sup> and H<sub>2</sub>, which rapidly boosted the whole photocatalytic performance. This as-prepared CeO<sub>2</sub>/TiO<sub>2</sub> photocatalyst can provide useful inspirations and new thoughts about the photosynthesis process, and offer a novel strategy for heterojunction photocatalysts preparation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Photocatalytic synthesized low content CeO2-modified rutile heterojunction photocatalysts with enhanced wastewater treatment and H2 evolution performances

  • 期刊论文

  • 发表日期：

    2025年10月1日

查看全文
  • De-yang Ning,
  • Jun-qi Li,
  • Chao-yi Chen,
  • Yuan-pei Lan,
  • Arun Murali,
  • Bao-lei Wang,
  • Shi-rong Wang

摘要

High performance composite photocatalyst is a hotspot in the photocatalysis researches. In this study, a cutting-edge CeO2/rutile composite photocatalyst with tiny CeO2 concentration of 1.28 wt% was synthesized via a simple photocatalytic method. This as-obtained CeO2/rutile catalyst (CeO2/TiO2-1:1) exhibited an enhanced wastewater degradation and improved water splitting H2 evolution ability, with 95.83 % removal ratio for methylene blue (MB), 72.84% for tetracycline (TC) and 87.57 µmol/g H2 evolution capacity. Light irradiation and 2-coordinated oxygen vacancies (OV2C) on rutile surface promoted the Ce3+ adsorption on the rutile (110) facet as DFT results shown. The CeO2/rutile type-II heterojunction was evidenced to promote the migration of e−/h+ and generation of ·OH/·O2− and H2, which rapidly boosted the whole photocatalytic performance. This as-prepared CeO2/TiO2 photocatalyst can provide useful inspirations and new thoughts about the photosynthesis process, and offer a novel strategy for heterojunction photocatalysts preparation.