In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue
To rapidly obtain a stable Fe<sub>3</sub>O<sub>4</sub>@cellulose heterogeneous Fenton catalyst, a novel in situ chemical co-precipitation method was developed. Compared with mechanical activation (MA)-pretreated cellulose (MAC), MA + FeCl<sub>3</sub> (MAFC)-pretre...
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MDPI AG
2019-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/9/2/275 |
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| author | Quan Lu Yanjuan Zhang Huayu Hu Wen Wang Zuqiang Huang Dong Chen Mei Yang Jing Liang |
| author_facet | Quan Lu Yanjuan Zhang Huayu Hu Wen Wang Zuqiang Huang Dong Chen Mei Yang Jing Liang |
| author_sort | Quan Lu |
| collection | DOAJ |
| description | To rapidly obtain a stable Fe<sub>3</sub>O<sub>4</sub>@cellulose heterogeneous Fenton catalyst, a novel in situ chemical co-precipitation method was developed. Compared with mechanical activation (MA)-pretreated cellulose (MAC), MA + FeCl<sub>3</sub> (MAFC)-pretreated cellulose (MAFCC) was more easily dissolved and uniformly distributed in NaOH/urea solvent. MAFCC and MAC solutions were used as precipitators to prepare Fe<sub>3</sub>O<sub>4</sub>@MAFCC and Fe<sub>3</sub>O<sub>4</sub>@MAC nanocomposites, respectively. MAFCC showed stronger interaction and more uniform combination with Fe<sub>3</sub>O<sub>4</sub> nanoparticles than MAC, implying that MAFC pretreatment enhanced the accessibility, reactivity, and dissolving capacity of cellulose thus, provided reactive sites for the in situ growth of Fe<sub>3</sub>O<sub>4</sub> nanoparticles on the regenerated cellulose. Additionally, the catalytic performance of Fe<sub>3</sub>O<sub>4</sub>@MAFCC nanocomposite was evaluated by using for catalytic degradation of methylene blue (MB), and Fe<sub>3</sub>O<sub>4</sub>@MAC nanocomposite and Fe<sub>3</sub>O<sub>4</sub> nanoparticles were used for comparative studies. Fe<sub>3</sub>O<sub>4</sub>@MAFCC nanocomposite exhibited superior catalytic activity for the degradation and mineralization of MB in practical applications. After ten cycles, the structure of Fe<sub>3</sub>O<sub>4</sub>@MAFCC nanocomposite was not significantly changed owing to the strong interaction between MAFCC and Fe<sub>3</sub>O<sub>4</sub> nanoparticles. This study provides a green pathway to the fabrication of a stable nanocomposite catalyst with high catalytic performance and reusability for the degradation of organic pollutants. |
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| language | English |
| last_indexed | 2024-12-10T23:26:24Z |
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| spelling | doaj.art-89d877852f7741c39cd2e0d634d366dc2022-12-22T01:29:35ZengMDPI AGNanomaterials2079-49912019-02-019227510.3390/nano9020275nano9020275In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene BlueQuan Lu0Yanjuan Zhang1Huayu Hu2Wen Wang3Zuqiang Huang4Dong Chen5Mei Yang6Jing Liang7School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, ChinaSchool of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, ChinaSchool of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, ChinaSchool of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, ChinaSchool of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, ChinaState Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, ChinaSchool of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, ChinaSchool of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, ChinaTo rapidly obtain a stable Fe<sub>3</sub>O<sub>4</sub>@cellulose heterogeneous Fenton catalyst, a novel in situ chemical co-precipitation method was developed. Compared with mechanical activation (MA)-pretreated cellulose (MAC), MA + FeCl<sub>3</sub> (MAFC)-pretreated cellulose (MAFCC) was more easily dissolved and uniformly distributed in NaOH/urea solvent. MAFCC and MAC solutions were used as precipitators to prepare Fe<sub>3</sub>O<sub>4</sub>@MAFCC and Fe<sub>3</sub>O<sub>4</sub>@MAC nanocomposites, respectively. MAFCC showed stronger interaction and more uniform combination with Fe<sub>3</sub>O<sub>4</sub> nanoparticles than MAC, implying that MAFC pretreatment enhanced the accessibility, reactivity, and dissolving capacity of cellulose thus, provided reactive sites for the in situ growth of Fe<sub>3</sub>O<sub>4</sub> nanoparticles on the regenerated cellulose. Additionally, the catalytic performance of Fe<sub>3</sub>O<sub>4</sub>@MAFCC nanocomposite was evaluated by using for catalytic degradation of methylene blue (MB), and Fe<sub>3</sub>O<sub>4</sub>@MAC nanocomposite and Fe<sub>3</sub>O<sub>4</sub> nanoparticles were used for comparative studies. Fe<sub>3</sub>O<sub>4</sub>@MAFCC nanocomposite exhibited superior catalytic activity for the degradation and mineralization of MB in practical applications. After ten cycles, the structure of Fe<sub>3</sub>O<sub>4</sub>@MAFCC nanocomposite was not significantly changed owing to the strong interaction between MAFCC and Fe<sub>3</sub>O<sub>4</sub> nanoparticles. This study provides a green pathway to the fabrication of a stable nanocomposite catalyst with high catalytic performance and reusability for the degradation of organic pollutants.https://www.mdpi.com/2079-4991/9/2/275celluloseFe<sub>3</sub>O<sub>4</sub> nanoparticlesinteractioncatalytic degradationstable catalyst |
| spellingShingle | Quan Lu Yanjuan Zhang Huayu Hu Wen Wang Zuqiang Huang Dong Chen Mei Yang Jing Liang In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue Nanomaterials cellulose Fe<sub>3</sub>O<sub>4</sub> nanoparticles interaction catalytic degradation stable catalyst |
| title | In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue |
| title_full | In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue |
| title_fullStr | In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue |
| title_full_unstemmed | In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue |
| title_short | In Situ Synthesis of a Stable Fe<sub>3</sub>O<sub>4</sub>@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue |
| title_sort | in situ synthesis of a stable fe sub 3 sub o sub 4 sub cellulose nanocomposite for efficient catalytic degradation of methylene blue |
| topic | cellulose Fe<sub>3</sub>O<sub>4</sub> nanoparticles interaction catalytic degradation stable catalyst |
| url | https://www.mdpi.com/2079-4991/9/2/275 |
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