Pr3+掺杂PbTiO3光催化CO2还原性能研究

黄雨欣; 阙美丹; 王亚博; 李晓虎; 张子涵; 吕江龙; 朱亮亮

doi:10.12434/j.issn.2097-2547.20250348

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Pr³⁺掺杂PbTiO₃光催化CO₂还原性能研究

更新时间：2026-02-12

- Pr³⁺掺杂PbTiO₃光催化CO₂还原性能研究
- Research on photocatalytic CO₂ reduction performance of PbTiO₃ with Pr³⁺doping
- 低碳化学与化工 2026: 1-10.
- 作者机构：
  
  1.西安建筑科技大学材料科学与工程学院，陕西，西安 710055
  2.中国石油天然气股份有限公司长庆油田分公司第八采油厂工艺研究所，陕西西安 710021
  3.国家石油天然气管网集团有限公司建设项目管理分公司，河北，廊坊 065000
  4.西北大学化工学院，陕西，西安 710127
- 作者简介：
  
  黄雨欣（2003—），本科生，研究方向为二氧化碳光催化转化，E-mail：596990400@qq.com。
  阙美丹（1989—），博士，副教授，研究方向为二氧化碳捕集与资源化利用，E-mail：mdque@xauat.edu.cn。
- 基金信息：
  
  国家重点研发计划(2024YFE0206600);陕西省自然科学基础研究计划(2025JC-YBQN-131);2023年陕西省大学生创新创业训练计划(S202310703156)
- DOI：10.12434/j.issn.2097-2547.20250348
  中图分类号： TQ09;X701
- 收稿：2025-08-25，
  
  修回：2025-11-02，
  
  网络首发：2026-02-12，
- 稿件说明：
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黄雨欣,阙美丹,王亚博等.Pr³⁺掺杂PbTiO₃光催化CO₂还原性能研究[J].低碳化学与化工,

HUANG Yuxin,QUE Meidan,WANG Yabo,et al.Research on photocatalytic CO₂ reduction performance of PbTiO₃ with Pr³⁺doping[J].Low-Carbon Chemistry and Chemical Engineering,
黄雨欣,阙美丹,王亚博等.Pr³⁺掺杂PbTiO₃光催化CO₂还原性能研究[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20250348.

HUANG Yuxin,QUE Meidan,WANG Yabo,et al.Research on photocatalytic CO₂ reduction performance of PbTiO₃ with Pr³⁺doping[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20250348.

摘要

在大气二氧化碳（CO

）浓度升高引发气候问题以及“双碳”目标推进的背景下，钙钛矿型PbTiO

虽具有光催化应用潜力，但纯相PbTiO

因带隙较宽、光生电子-空穴分离效率低而催化性能受限，稀土离子掺杂被视为提升其光催化性能的有效方法。采用水热法制备了纯相PbTiO

以及La、Sm、Pr、Dy和Tm离子掺杂的PbTiO

，通过XRD、SEM和UV-vis DRS等方法表征了催化剂的物相、形貌及光电性能等，并评价了催化剂光催化CO

还原性能。结果表明，Pr

掺杂浓度为1%的PbTiO

呈尺寸为500~1100 nm的多边形块状，在CO

气体下300 W氙灯照射2 h后，该催化剂的CO、CH

产率分别达1.70 μmol/(g·h)、0.55 μmol/(g·h)，且呈现良好的稳定性。在60%N

/40%CO

混合气体下（其他条件不变），该催化剂的CO产量升至2.82 μmol/g，这是因为Pr

掺杂为PbTiO

提供了4f轨道，减小了带隙宽度，促进了光生电子-空穴对分离，显著提升了催化剂光催化CO

还原性能。

Abstract

Under the background of climate issues caused by the increase in carbon dioxide (CO

) concentration in the atmosphere and the promotion of “dual carbon” goal

alth

ough perovskite-type PbTiO

has the potential for photocatalytic applications

its catalytic performance is limited due to the wide band gap and low photogenerated electron-hole separation efficiency in pure-phase PbTiO

. Rare earth ions doping is regarded as an effective method to enhance its photocatalytic performance. Pure-phase PbTiO

and PbTiO

with La

Dy and Tm rare earth ions doping were prepared by the hydrothermal method. The phases

morphologies and photoelectric properties of catalysts were characterized by XRD

SEM and UV-vis DRS

and the photocatalytic CO

reduction performances were evaluated. The results show that PbTiO

with 1% Pr

doping presents a polygonal block shape with the size range of 500~1100 nm. After 2 hours of irradiation with a 300 W xenon lamp under CO

the CO and CH

yields of the catalyst reach 1.70 μmol/(g·h) and 0.55 μmol/(g·h)

respectively. Moreover

it exhibits good stability. Under 60%N

/40%CO

mixed gas (other conditions being equal)

the CO production of the catalyst increases to 2.82 μmol/g

because Pr

doping provides 4f orbitals for PbTiO

narrows the band gap

promotes low photogenerated electron-hole separation efficiency

and significantly enhances the photocatalytic CO

reduction performance.

关键词

Keywords

references

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