光热治疗
材料科学
铋
光催化
兴奋剂
催化作用
纳米颗粒
纳米技术
纳米片
化学工程
化学
光电子学
有机化学
冶金
工程类
作者
Mengmeng Zhang,Changhua Wang,Yue-Yun Wang,Songmei Li,Xintong Zhang,Yichun Liu
出处
期刊:Nano Research
[Springer Nature]
日期:2022-10-07
卷期号:16 (2): 2142-2151
被引量:17
标识
DOI:10.1007/s12274-022-4949-3
摘要
Photothermal CO2 reduction with H2O, integrating advantages of photocatalysis driven H2O splitting and thermal catalysis promoted CO2 reduction, has drawn sharply increasing attention in artificial synthesis of solar fuels. The photothermal effect of metal nanoparticles facilities CO2 hydrogenation and activation of lattice oxygen in oxide photocatalyst promotes H2O oxidation, which is essentially considered for highly efficient photothermal catalysis. However, the large thermal conductivity of most metal nanoparticles induces inevitable heat dissipation, restricting the increase of catalyst temperature. In this work, to minimize the heat dissipation, we employ bismuth nanoparticles as photothermal unit, which is of the lowest thermal conductivity in the metal family. Meanwhile, we adopt bismuth doped NaTaO3 as photocatalytic unit because of the bismuth doping induced activation of lattice oxygen. The bismuth nanoparticles are assembled with bismuth doped NaTaO3 through one-step tunable transformation from Bi4TaO8Cl. Benefiting from the photothermal effect, thermal insulation caused by bismuth metal, and lattice oxygen activation by bismuth doping, the NaTaO3:Bi hybrid exhibits high photothermal catalytic performance. The yield of CO over NaTaO3:Bi hybrid at 413 K via photothermal catalysis is 141 times higher than that room temperature photocatalysis. Further, ultraviolet (UV) light irradiation leads to 89.2% selectivity of CO and visible light irradiation leads to 97.5% selectivity of CH4. This work may broaden the photocatalytic application of ABO3 perovskite and provides a novel strategy for the development of photothermal catalysts for artificial photosynthesis.
科研通智能强力驱动
Strongly Powered by AbleSci AI