Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities
Heterogeneous photocatalysis plays a key role in the implementation of novel sustainable technologies, e.g. CO2 conversion into fuel, H2 production from water or organics degradation. The progress of photocatalysis relies on the development of tuneable photocatalysts and particularly the ability to...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Royal Society of Chemistry
2016
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| _version_ | 1797110942660558848 |
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| author | Hong, J Chen, C Bedoya, FE Kelsall, GH O'Hare, D Petit, C |
| author_facet | Hong, J Chen, C Bedoya, FE Kelsall, GH O'Hare, D Petit, C |
| author_sort | Hong, J |
| collection | OXFORD |
| description | Heterogeneous photocatalysis plays a key role in the implementation of novel sustainable technologies, e.g. CO2 conversion into fuel, H2 production from water or organics degradation. The progress of photocatalysis relies on the development of tuneable photocatalysts and particularly the ability to build nanocomposites exhibiting synergistic properties with reduced electron–hole recombination rates. We report for the first time the in situ synthesis of nanocomposites of carbon nitride nanosheets (CNNSs) and metal–organic frameworks (MOFs) for application as photocatalysts. This approach leads to the ‘nano-scale mixing’ of the components, thereby enabling a greater performance compared to other types of 2D materials/MOF composites typically obtained via physical mixing. The objective is to take advantage of the complementary features of the materials while forming a heterojunction. The structural, chemical, photophysical and electrochemical properties of the nanocomposites are characterized and compared to those of the parent materials and their physical mixture. The nanocomposites retain the high specific surface area and strong visible light absorbance of MIL-100(Fe). The intimate contact between the CNNSs and the MOF particles is found to promote the electron–hole separation significantly due to the formation of a heterojunction. Hence, more efficient photocatalytic dye degradation is achieved over the composites than the physical mixture. |
| first_indexed | 2024-03-07T08:01:41Z |
| format | Journal article |
| id | oxford-uuid:2aac89cd-5389-4764-ac53-52731e021feb |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T08:01:41Z |
| publishDate | 2016 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | oxford-uuid:2aac89cd-5389-4764-ac53-52731e021feb2023-10-09T11:47:05ZCarbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activitiesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2aac89cd-5389-4764-ac53-52731e021febEnglishSymplectic Elements at OxfordRoyal Society of Chemistry2016Hong, JChen, CBedoya, FEKelsall, GHO'Hare, DPetit, CHeterogeneous photocatalysis plays a key role in the implementation of novel sustainable technologies, e.g. CO2 conversion into fuel, H2 production from water or organics degradation. The progress of photocatalysis relies on the development of tuneable photocatalysts and particularly the ability to build nanocomposites exhibiting synergistic properties with reduced electron–hole recombination rates. We report for the first time the in situ synthesis of nanocomposites of carbon nitride nanosheets (CNNSs) and metal–organic frameworks (MOFs) for application as photocatalysts. This approach leads to the ‘nano-scale mixing’ of the components, thereby enabling a greater performance compared to other types of 2D materials/MOF composites typically obtained via physical mixing. The objective is to take advantage of the complementary features of the materials while forming a heterojunction. The structural, chemical, photophysical and electrochemical properties of the nanocomposites are characterized and compared to those of the parent materials and their physical mixture. The nanocomposites retain the high specific surface area and strong visible light absorbance of MIL-100(Fe). The intimate contact between the CNNSs and the MOF particles is found to promote the electron–hole separation significantly due to the formation of a heterojunction. Hence, more efficient photocatalytic dye degradation is achieved over the composites than the physical mixture. |
| spellingShingle | Hong, J Chen, C Bedoya, FE Kelsall, GH O'Hare, D Petit, C Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities |
| title | Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities |
| title_full | Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities |
| title_fullStr | Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities |
| title_full_unstemmed | Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities |
| title_short | Carbon nitride nanosheet/metal–organic framework nanocomposites with synergistic photocatalytic activities |
| title_sort | carbon nitride nanosheet metal organic framework nanocomposites with synergistic photocatalytic activities |
| work_keys_str_mv | AT hongj carbonnitridenanosheetmetalorganicframeworknanocompositeswithsynergisticphotocatalyticactivities AT chenc carbonnitridenanosheetmetalorganicframeworknanocompositeswithsynergisticphotocatalyticactivities AT bedoyafe carbonnitridenanosheetmetalorganicframeworknanocompositeswithsynergisticphotocatalyticactivities AT kelsallgh carbonnitridenanosheetmetalorganicframeworknanocompositeswithsynergisticphotocatalyticactivities AT ohared carbonnitridenanosheetmetalorganicframeworknanocompositeswithsynergisticphotocatalyticactivities AT petitc carbonnitridenanosheetmetalorganicframeworknanocompositeswithsynergisticphotocatalyticactivities |