Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis
In this work, a sunlight-sensitive photocatalyst of nanocubic-like titanium dioxide (TiO2) and N-doped graphene quantum dots (N-GQDs) is developed through a simple hydrothermal and physical mixing method. The successful amalgamation composite photocatalyst characteristics were comprehensively scruti...
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| Format: | Article |
| Language: | English |
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Springer
2019
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| Online Access: | http://umpir.ump.edu.my/id/eprint/27939/1/Amalgamation%20of%20N-graphene%20quantum%20dots%20with%20nanocubic%20like%20TiO2%20.pdf |
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| author | Lim, Ping Feng Leong, Kah Hon Sim, Lan Ching Azrina, Abd Aziz Saravanan, Pichiah |
| author_facet | Lim, Ping Feng Leong, Kah Hon Sim, Lan Ching Azrina, Abd Aziz Saravanan, Pichiah |
| author_sort | Lim, Ping Feng |
| collection | UMP |
| description | In this work, a sunlight-sensitive photocatalyst of nanocubic-like titanium dioxide (TiO2) and N-doped graphene quantum dots (N-GQDs) is developed through a simple hydrothermal and physical mixing method. The successful amalgamation composite photocatalyst characteristics were comprehensively scrutinized through various physical and chemical analyses. A complete removal of bisphenol A (BPA) is attained by a synthesized composite after 30 min of sunlight irradiation as compared to pure TiO2. This clearly proved the unique contribution of N-GQDs that enhanced the ability of light harvesting especially under visible light and near-infrared region. This superior characteristic enables it to maximize the absorbance in the entire solar spectrum. However, the increase of N-GQDs weight percentage has created massive oxygen vacancies that suppress the generation of active radicals. This resulted in a longer duration for a complete removal of BPA as compared to lower weight percentage of N-GQDs. Hence, this finding can offer a new insight in developing effective sunlight-sensitive photocatalysts for various complex organic pollutants degradation. |
| first_indexed | 2024-03-06T12:41:22Z |
| format | Article |
| id | UMPir27939 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:41:22Z |
| publishDate | 2019 |
| publisher | Springer |
| record_format | dspace |
| spelling | UMPir279392020-09-07T07:29:36Z http://umpir.ump.edu.my/id/eprint/27939/ Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis Lim, Ping Feng Leong, Kah Hon Sim, Lan Ching Azrina, Abd Aziz Saravanan, Pichiah QC Physics QD Chemistry TP Chemical technology In this work, a sunlight-sensitive photocatalyst of nanocubic-like titanium dioxide (TiO2) and N-doped graphene quantum dots (N-GQDs) is developed through a simple hydrothermal and physical mixing method. The successful amalgamation composite photocatalyst characteristics were comprehensively scrutinized through various physical and chemical analyses. A complete removal of bisphenol A (BPA) is attained by a synthesized composite after 30 min of sunlight irradiation as compared to pure TiO2. This clearly proved the unique contribution of N-GQDs that enhanced the ability of light harvesting especially under visible light and near-infrared region. This superior characteristic enables it to maximize the absorbance in the entire solar spectrum. However, the increase of N-GQDs weight percentage has created massive oxygen vacancies that suppress the generation of active radicals. This resulted in a longer duration for a complete removal of BPA as compared to lower weight percentage of N-GQDs. Hence, this finding can offer a new insight in developing effective sunlight-sensitive photocatalysts for various complex organic pollutants degradation. Springer 2019-02-08 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/27939/1/Amalgamation%20of%20N-graphene%20quantum%20dots%20with%20nanocubic%20like%20TiO2%20.pdf Lim, Ping Feng and Leong, Kah Hon and Sim, Lan Ching and Azrina, Abd Aziz and Saravanan, Pichiah (2019) Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis. Environmental Science and Pollution Research, 26 (4). pp. 3455-3464. ISSN 1614-7499. (Published) https://doi.org/10.1007/s11356-018-3821-1 https://doi.org/10.1007/s11356-018-3821-1 |
| spellingShingle | QC Physics QD Chemistry TP Chemical technology Lim, Ping Feng Leong, Kah Hon Sim, Lan Ching Azrina, Abd Aziz Saravanan, Pichiah Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis |
| title | Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis |
| title_full | Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis |
| title_fullStr | Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis |
| title_full_unstemmed | Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis |
| title_short | Amalgamation of N-graphene quantum dots with nanocubic like TiO2 : an insight study of sunlight sensitive photocatalysis |
| title_sort | amalgamation of n graphene quantum dots with nanocubic like tio2 an insight study of sunlight sensitive photocatalysis |
| topic | QC Physics QD Chemistry TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/27939/1/Amalgamation%20of%20N-graphene%20quantum%20dots%20with%20nanocubic%20like%20TiO2%20.pdf |
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