Bi/Bi2O2CO3 等离子体复合材料的合成及其光催化性能

doi:10.11901/1005.3093.2025.380

材料研究学报

2026, Vol. 40

Issue (5): 343-351 DOI: 10.11901/1005.3093.2025.380

光催化专题

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Bi/Bi₂O₂CO₃ 等离子体复合材料的合成及其光催化性能

屈梦原, 游康伟, 谢丽燕(

), 王雅馨, 罗志珊, 黄建辉

莆田学院环境与生物工程学院福建省新污染物生态影响与处理重点实验室生态信息图谱福建省高校重点实验室莆田 351100

Synthesis and Photocatalytic Performance of Bi/Bi₂O₂CO₃

QU Mengyuan, YOU Kangwei, XIE Liyan(

), WANG Yaxin, LUO Zhishan, HUANG Jianhui

College of Environmental and Biological Engineering, Fujian Provincial Key Laboratory of Ecological Impacts and Treatment Technologies for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas, Fujian Provincial University, Putian University, Putian 351100, China

引用本文:

屈梦原, 游康伟, 谢丽燕, 王雅馨, 罗志珊, 黄建辉. Bi/Bi₂O₂CO₃ 等离子体复合材料的合成及其光催化性能[J]. 材料研究学报, 2026, 40(5): 343-351.
Mengyuan QU, Kangwei YOU, Liyan XIE, Yaxin WANG, Zhishan LUO, Jianhui HUANG. Synthesis and Photocatalytic Performance of Bi/Bi₂O₂CO₃[J]. Chinese Journal of Materials Research, 2026, 40(5): 343-351.

全文: PDF(8061 KB) HTML

摘要:

以多聚甲醛作为碳源和还原剂，用一步水热法在Bi₂O₂CO₃纳米片表面原位生长铋纳米颗粒(Bi NPs)构建Bi/Bi₂O₂CO₃等离子体复合材料，使用XRD、SEM、TEM、XPS及UV-Vis DRS等手段表征其晶体结构、微观形貌、化学态和光学性能，并以孔雀石绿(MG)和环丙沙星(CIP)为目标污染物评价其光催化活性。结果表明，铋纳米颗粒均匀分布在Bi₂O₂CO₃表面，改变前驱体中铋与碳的摩尔比可精准调节其负载量。Bi与Bi₂O₂CO₃质量比为1:10的复合材料其光催化性能最佳，反应速率分别比纯Bi₂O₂CO₃和纯Bi粉末提高3.5倍和19.7倍。性能的提高可归因于金属Bi表面的等离子体共振(SPR)效应和Bi/Bi₂O₂CO₃异质结的协同作用：一方面显著增强可见光吸收，另一方面促进光生载流子的分离和迁移，并抑制电子-空穴复合。ESR与活性物种捕获实验结果证实，超氧自由基和羟基自由基对MG和CIP的降解起了关键的作用。

关键词 ：复合材料, 光催化性能, 水热法, Bi/Bi₂O₂CO₃

Abstract：

Bismuth nanoparticles (NPs) were successfully synthesized in-situ on Bi₂O₂CO₃ nanosh-eets through a one-pot hydrothermal method employing paraformaldehyde as a dual carbon source and reducing agent. The Bi/Bi₂O₂CO₃hybrids were comprehensively analyzed using XRD, SEM, TEM, and XPS, with their optical characteristics investigated via UV-Vis DRS. Their photocatalytic efficacy was assessed by decomposing malachite green (MG) and ciprofloxacin (CIP) as target contaminants. The results indicate uniform dispersion of Bi NPs on Bi₂O₂CO₃, with adjustable loading content by modulating the ratio of Bi precursor to paraformaldehyde. The most effective composite Bi/Bi₂O₂CO₃ with mass ratio of 1:10 displayed significantly improved photocatalytic performance, exhibiting reaction rates 3.5 and 19.7 times higher than pure Bi₂O₂CO₃ and pristine Bi powder, respectively. This enhancement is ascribed to the surface plasmon resonance (SPR) of metallic Bi and the developed Bi/Bi₂O₂CO₃ heterojunction, which collectively enhance visible-light absorption, facilitate the charge separation and transfer, and inhibit the electron-hole recombination. Additionally, ESR and trapping experiments confirmed that the increased generation of $⋅$ O $2 -$ radicals and $⋅$ OH radicals play a pivotal role in the degradation mechanism.

Key words： composite photocatalytic performance hydrothermal method Bi/Bi₂O₂CO₃

收稿日期: 2025-12-23

ZTFLH:

O643.36

基金资助:国家自然科学基金(22472080);国家自然科学基金(22102030);福建省自然科学基金(2023J011003);福建省自然科学基金(2023J05196);福建省自然科学基金(2024J01881);能源与环境光催化国家重点实验室开放项目(SKLPEE-KF202315);莆田学院高层次人才启动基金(2022052);莆田学院研究生科研创新项目(YJS2024022);莆田市科技计划(2023GJGZ001)

通讯作者: 谢丽燕，副教授，103382949@qq.com，研究方向为环境光催化

Corresponding author: XIE Liyan, Tel: (0594)2696445, E-mail: 103382949@qq.com

作者简介: 屈梦原，男，1998年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2025.380 或 https://www.cjmr.org/CN/Y2026/V40/I5/343

图1 BOC and Bi/Bi2O2CO3样品的XRD谱

图2 BOC和Bi/BOC-1样品的SEM照片

图3 Bi/BOC-1的TEM、HRTEM图和SAED衍射花样

图4 不同样品的紫外可见分光光度谱

图5 Bi/BOC-1样品的XPS总谱以及Bi 4f、O 1s和C 1s的高分辨谱

图6 所制备样品对MG和CIP的降解活性和-ln(C/C0)与时间的关系

图7 Bi/BOC-1对CIP光催化降解的循环图

表1 不同合成策略下Bi/Bi2O2CO3基光催化材料的性能对比

图8 样品的瞬态光电流响应和Nyquist图

图9 固体荧光(PL)光谱

图10 Bi/BOC-1样品在添加不同捕获剂条件下对MG的降解

图11 样品中DMPO-⋅O2-和DMPO-·OH的电子自旋捕获共振光谱

图12 Bi/Bi2O2CO3复合材料在可见光照射下的电子-空穴分离示意图

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