Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation
Formaldehyde (HCHO) is a ubiquitous indoor pollutant that seriously endangers human health. The removal of formaldehyde effectively at room temperature has always been a challenging problem. Here, a kind of amino-fullerene derivative (C<sub>60</sub>-EDA)-modified titanium dioxide (C<s...
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MDPI AG
2022-07-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/14/2366 |
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| author | Jingbiao Fan Tao Wang Bo Wu Chunru Wang |
| author_facet | Jingbiao Fan Tao Wang Bo Wu Chunru Wang |
| author_sort | Jingbiao Fan |
| collection | DOAJ |
| description | Formaldehyde (HCHO) is a ubiquitous indoor pollutant that seriously endangers human health. The removal of formaldehyde effectively at room temperature has always been a challenging problem. Here, a kind of amino-fullerene derivative (C<sub>60</sub>-EDA)-modified titanium dioxide (C<sub>60</sub>-EDA/TiO<sub>2</sub>) was prepared by one-step hydrothermal method, which could degrade the formaldehyde under solar light irradiation at room temperature with high efficiency and stability. Importantly, the introduction of C<sub>60</sub>-EDA not only increases the adsorption of the free formaldehyde molecules but also improves the utilization of sunlight and suppresses photoelectron-hole recombination. The experimental results indicated that the C<sub>60</sub>-EDA/TiO<sub>2</sub> nanoparticles exhibit much higher formaldehyde removal efficiency than carboxyl-fullerene-modified TiO<sub>2</sub>, pristine TiO<sub>2</sub> nanoparticles, and almost all other reported formaldehyde catalysts especially in the aspect of the quality of formaldehyde that is treated by catalyst with unit mass (m<i><sub>HCHO</sub></i>/m<i><sub>catalyst</sub></i> = 40.85 mg/g), and the removal efficiency has kept more than 96% after 12 cycles. Finally, a potential formaldehyde degradation pathway was deduced based on the situ diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) and reaction intermediates. This work provides some indications into the design and fabrication of the catalysts with excellent catalytic performances for HCHO removal at room temperature. |
| first_indexed | 2024-03-09T13:16:16Z |
| format | Article |
| id | doaj.art-3c0fb78a4ec3472b9cae5d81524f6ebd |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T13:16:16Z |
| publishDate | 2022-07-01 |
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| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-3c0fb78a4ec3472b9cae5d81524f6ebd2023-11-30T21:35:16ZengMDPI AGNanomaterials2079-49912022-07-011214236610.3390/nano12142366Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light IrradiationJingbiao Fan0Tao Wang1Bo Wu2Chunru Wang3Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, ChinaBeijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, ChinaBeijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, ChinaBeijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, ChinaFormaldehyde (HCHO) is a ubiquitous indoor pollutant that seriously endangers human health. The removal of formaldehyde effectively at room temperature has always been a challenging problem. Here, a kind of amino-fullerene derivative (C<sub>60</sub>-EDA)-modified titanium dioxide (C<sub>60</sub>-EDA/TiO<sub>2</sub>) was prepared by one-step hydrothermal method, which could degrade the formaldehyde under solar light irradiation at room temperature with high efficiency and stability. Importantly, the introduction of C<sub>60</sub>-EDA not only increases the adsorption of the free formaldehyde molecules but also improves the utilization of sunlight and suppresses photoelectron-hole recombination. The experimental results indicated that the C<sub>60</sub>-EDA/TiO<sub>2</sub> nanoparticles exhibit much higher formaldehyde removal efficiency than carboxyl-fullerene-modified TiO<sub>2</sub>, pristine TiO<sub>2</sub> nanoparticles, and almost all other reported formaldehyde catalysts especially in the aspect of the quality of formaldehyde that is treated by catalyst with unit mass (m<i><sub>HCHO</sub></i>/m<i><sub>catalyst</sub></i> = 40.85 mg/g), and the removal efficiency has kept more than 96% after 12 cycles. Finally, a potential formaldehyde degradation pathway was deduced based on the situ diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) and reaction intermediates. This work provides some indications into the design and fabrication of the catalysts with excellent catalytic performances for HCHO removal at room temperature.https://www.mdpi.com/2079-4991/12/14/2366amino-fullerene derivativephotocatalysischemical adsorptionHCHO degradationTiO<sub>2</sub> nanoparticle |
| spellingShingle | Jingbiao Fan Tao Wang Bo Wu Chunru Wang Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation Nanomaterials amino-fullerene derivative photocatalysis chemical adsorption HCHO degradation TiO<sub>2</sub> nanoparticle |
| title | Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation |
| title_full | Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation |
| title_fullStr | Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation |
| title_full_unstemmed | Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation |
| title_short | Highly Active Amino-Fullerene Derivative-Modified TiO<sub>2</sub> for Enhancing Formaldehyde Degradation Efficiency under Solar-Light Irradiation |
| title_sort | highly active amino fullerene derivative modified tio sub 2 sub for enhancing formaldehyde degradation efficiency under solar light irradiation |
| topic | amino-fullerene derivative photocatalysis chemical adsorption HCHO degradation TiO<sub>2</sub> nanoparticle |
| url | https://www.mdpi.com/2079-4991/12/14/2366 |
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