TiO2/g-C3N4 异质结中 TiO2 纳米粒子的形态对光催化降解染料的影响

IF 1.4 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Chemistry Letters Pub Date : 2024-08-26 DOI:10.1093/chemle/upae171

Zijian Deng, Ryota Osuga, Masaki Matsubara, Kiyoshi Kanie, Atsushi Muramatsu

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引用次数: 0

摘要

研究了TiO2纳米粒子（NP）形态对物理组装TiO2 NP/g-C3N4异质结（TCNPHY）光催化活性的影响。合成了球形、纺锤形和立方体 TiO2 NPs，并分别支撑在 g-C3N4 纳米片上，形成了物理组装的 TCNPHY 催化剂。观察到立方 TiO2 NPs 的 TCNPHY 具有更高的光吸收和更低的重组率，因而具有降解亚甲基蓝（MB）的光催化活性，是构建催化活性异质结的理想催化剂。立方二氧化钛 TCNPHY 的降解率是单独 g-C3N4 纳米片的 2.2 倍。

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Morphological effect of TiO2 nanoparticles in TiO2/g-C3N4 heterojunctions on photocatalytic dye degradation

The effects of TiO2 nanoparticle (NP) morphology on the photocatalytic activity of physically assembled TiO2 NP/g-C3N4 heterojunctions (TCNPHY) was investigated. Spherical, spindle and cubic TiO2 NPs were synthesized and separately supported on g-C3N4 nanosheets to form physically assembled TCNPHY catalysts. The photocatalytic activity for methylene blue (MB) degradation observed for TCNPHY with the cubic TiO2 NPs supported higher light absorption and a lower recombination rate; therefore, this was an adequate catalyst for the construction of catalytically active heterojunctions. The cubic-TiO2 TCNPHY exhibited a degradation rate that was 2.2 times higher than that for the g-C3N4 nanosheets alone.

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来源期刊

Chemistry Letters 化学-化学综合

CiteScore

3.00

自引率

6.20%

发文量

260

审稿时长

1.2 months

期刊介绍： Chemistry Letters covers the following topics: -Organic Chemistry- Physical Chemistry- Inorganic Chemistry- Analytical Chemistry- Materials Chemistry- Polymer Chemistry- Supramolecular Chemistry- Organometallic Chemistry- Coordination Chemistry- Biomolecular Chemistry- Natural Products and Medicinal Chemistry- Electrochemistry