一步合成铁氮掺杂碳纳米粒子及其可见光催化

引用本文: 李洪仁, 张岩, 刘诗琪, 李锋. 一步合成铁氮掺杂碳纳米粒子及其可见光催化[J]. 无机化学学报, 2015, 31(10): 1938-1945. doi: 10.11862/CJIC.2015.270 shu

Citation: LI Hong-Ren, ZHANG Yan, LIU Shi-Qi, LI Feng. One Step Synthesis of Fe/N Co-Doped Carbon Nanoparticles for Photocatalysis[J]. Chinese Journal of Inorganic Chemistry, 2015, 31(10): 1938-1945. doi: 10.11862/CJIC.2015.270 shu

一步合成铁氮掺杂碳纳米粒子及其可见光催化

1.
沈阳大学师范学院化学系, 沈阳 110044

通讯作者: 李锋,E-mail:syufengli@126.com;Tel:+86-24-62721002

基金项目:
沈阳大学博士启动基金支持项目(No.11202127012)资助项目。 (No.11202127012)

摘要: 使用柠檬酸、草酸铵作为碳源物质,三氯化铁为铁源,直接热分解法一步合成铁氮掺杂碳纳米粒子。所得的铁氮掺杂碳纳米粒子溶液在365 nm的紫外辐射下发射蓝色荧光。对铁氮掺杂碳纳米粒子进行了XRD、TEM、FTIR、FL、XPS表征。合成的铁氮掺杂碳纳米粒子分散均匀,直径大约3~5 nm。荧光光谱表明:粒子荧光性能优良,发射光谱依赖激发波长变化,具有多色性。此外,合成的掺杂碳纳米粒子溶液在长波长的可见光和红外光激发下有较好的荧光辐射,具有上转换功能。将其应用于可见光光降解亚甲基蓝MB,在MB起始浓度为20 mg·L^-1,不使用氧化剂时,15 h可以使褪色率达到90%;使用过氧化氢为氧化剂,15 min可以达到97%,其光催化性能优良。对其氧化还原反应机理进行了电化学评估,评估结果与理论吻合。

关键词:

铁氮掺杂;碳纳米粒子;荧光;热分解合成;光催化

English

One Step Synthesis of Fe/N Co-Doped Carbon Nanoparticles for Photocatalysis

1.
Normal College, Shenyang University, Shenyang 110044, China

Corresponding author: 李锋,E-mail:syufengli@126.com;Tel:+86-24-62721002

Received Date: 31 March 2015
Fund Project:
沈阳大学博士启动基金支持项目(No.11202127012)资助项目。

Abstract: A one step method of synthesis of iron-nitrogen doped carbon nanoparticles (Fe/NCNPs) is developed by pyrolysis using citric acid and ammonium oxalate as carbon source and FeCl3 as iron source. The solution of as-prepared Fe/NCNPs emits blue fluorescent under 365 nm UV. As-prepared Fe/NCNPs are investigated by XRD, TEM, FTIR, FL and XPS. The result indicates that as-prepared Fe/NCNPs are well- dispersed with an average diameter of about 3~5 nm. Its fluorescence spectra show that the particles have excellent fluorescence performance, and with increasing excitation wavelength, the fluorescence spectra shift to longer wavelengths, which is multicolor. In addition, the solution of as-prepared Fe/NCNPs has good short wavelength optical emission with long wavelength visible and infrared light excitation, which is the up-converting function. When as-prepared Fe/NCNPs are applied to photocatalytic degradation of methylene blue (20 mg·L^-1) irradiated by visible light, when the H₂O₂ is absent, the decolorization rate is over 90% in 15 hours; when H₂O₂ is present as oxidant, the decolorization rate is over 97% in 15 min, revealing excellent photocatalytic activity. The redox reaction mechanism of the photocatalytic degradation is evaluated by electrochemical method, and the result is consistent with the theory.

Key words:

Fe/N co-doped;carbon nanoparticles;fluorescence;pyrolysis synthesis;photocatalysis

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

一步合成铁氮掺杂碳纳米粒子及其可见光催化

通讯作者: 李锋,E-mail:syufengli@126.com;Tel:+86-24-62721002

English

One Step Synthesis of Fe/N Co-Doped Carbon Nanoparticles for Photocatalysis

Corresponding author: 李锋,E-mail:syufengli@126.com;Tel:+86-24-62721002

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

一步合成铁氮掺杂碳纳米粒子及其可见光催化

通讯作者: 李锋,E-mail:syufengli@126.com;Tel:+86-24-62721002

English

One Step Synthesis of Fe/N Co-Doped Carbon Nanoparticles for Photocatalysis

Corresponding author: 李锋,E-mail:syufengli@126.com;Tel:+86-24-62721002

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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