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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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Main Authors: Lim, Ping Feng, Leong, Kah Hon, Sim, Lan Ching, Azrina, Abd Aziz, Saravanan, Pichiah
Format: Article
Language:English
Published: Springer 2019
Subjects:
QC Physics
QD Chemistry
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/27939/1/Amalgamation%20of%20N-graphene%20quantum%20dots%20with%20nanocubic%20like%20TiO2%20.pdf
http://umpir.ump.edu.my/id/eprint/27939/
https://doi.org/10.1007/s11356-018-3821-1
https://doi.org/10.1007/s11356-018-3821-1
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spelling my.ump.umpir.279392020-09-07T07:29:36Z 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 https://doi.org/10.1007/s11356-018-3821-1 https://doi.org/10.1007/s11356-018-3821-1
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic QC Physics
QD Chemistry
TP Chemical technology
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
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.
format Article
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
title 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_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_sort amalgamation of n-graphene quantum dots with nanocubic like tio2 : an insight study of sunlight sensitive photocatalysis
publisher Springer
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/27939/1/Amalgamation%20of%20N-graphene%20quantum%20dots%20with%20nanocubic%20like%20TiO2%20.pdf
http://umpir.ump.edu.my/id/eprint/27939/
https://doi.org/10.1007/s11356-018-3821-1
https://doi.org/10.1007/s11356-018-3821-1
_version_ 1677781328080142336
score 13.211869

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