Porous g-C3N4 with defects for the efficient dye photodegradation under visible light
Porous graphitic carbon nitride (p-C3N4) was fabricated via simple pyrolyzing treatment of graphitic carbon nitride (g-C3N4). The defects could be introduced into the structure of g-C3N4 by breakage of some bonds, which was beneficial for the generation of electron–hole pairs and inhibiting their re...
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oai:doaj.org-article:79bad4ca8ca74dabaa33c12982e5b5b12021-11-06T11:22:09ZPorous g-C3N4 with defects for the efficient dye photodegradation under visible light0273-12231996-973210.2166/wst.2021.313https://doaj.org/article/79bad4ca8ca74dabaa33c12982e5b5b12021-09-01T00:00:00Zhttp://wst.iwaponline.com/content/84/6/1354https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Porous graphitic carbon nitride (p-C3N4) was fabricated via simple pyrolyzing treatment of graphitic carbon nitride (g-C3N4). The defects could be introduced into the structure of g-C3N4 by breakage of some bonds, which was beneficial for the generation of electron–hole pairs and inhibiting their recombination. Compared with g-C3N4, p-C3N4 showed a narrow band gap to promote the utilization of visible light. Furthermore, the porous structure also increased the specific surface area to maximize the exposure of active sites and promote mass transfer during photodegradation. As a result, the as-reported p-C3N4 exhibited considerably higher degradation efficiency for Rhodamine B (RhB) and Methyl Orange (MO) than that of the original g-C3N4. Moreover, the photocatalyst showed high durability and stability in recycling experiments. HIGHLIGHTS Facile synthesis process for the porous catalyst.; Metal-free components.; The band gap of the catalyst is 2.59 eV in visible light region.; The defects can inhibit the recombination of electrons and holes.; Excellent photocatalytic degradation efficiency and high stability for industrial dyes.;Jing ChenYage ZhangBaofan WuZhichao NingMiaoyan SongHaifeng ZhangXuzhuo SunDongjin WanBo LiIWA Publishingarticledefectdegradationgraphitic carbon nitridephotocatalytic activityporous structureEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 6, Pp 1354-1365 (2021) |
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DOAJ |
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DOAJ |
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EN |
| topic |
defect degradation graphitic carbon nitride photocatalytic activity porous structure Environmental technology. Sanitary engineering TD1-1066 |
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defect degradation graphitic carbon nitride photocatalytic activity porous structure Environmental technology. Sanitary engineering TD1-1066 Jing Chen Yage Zhang Baofan Wu Zhichao Ning Miaoyan Song Haifeng Zhang Xuzhuo Sun Dongjin Wan Bo Li Porous g-C3N4 with defects for the efficient dye photodegradation under visible light |
| description |
Porous graphitic carbon nitride (p-C3N4) was fabricated via simple pyrolyzing treatment of graphitic carbon nitride (g-C3N4). The defects could be introduced into the structure of g-C3N4 by breakage of some bonds, which was beneficial for the generation of electron–hole pairs and inhibiting their recombination. Compared with g-C3N4, p-C3N4 showed a narrow band gap to promote the utilization of visible light. Furthermore, the porous structure also increased the specific surface area to maximize the exposure of active sites and promote mass transfer during photodegradation. As a result, the as-reported p-C3N4 exhibited considerably higher degradation efficiency for Rhodamine B (RhB) and Methyl Orange (MO) than that of the original g-C3N4. Moreover, the photocatalyst showed high durability and stability in recycling experiments. HIGHLIGHTS
Facile synthesis process for the porous catalyst.;
Metal-free components.;
The band gap of the catalyst is 2.59 eV in visible light region.;
The defects can inhibit the recombination of electrons and holes.;
Excellent photocatalytic degradation efficiency and high stability for industrial dyes.; |
| format |
article |
| author |
Jing Chen Yage Zhang Baofan Wu Zhichao Ning Miaoyan Song Haifeng Zhang Xuzhuo Sun Dongjin Wan Bo Li |
| author_facet |
Jing Chen Yage Zhang Baofan Wu Zhichao Ning Miaoyan Song Haifeng Zhang Xuzhuo Sun Dongjin Wan Bo Li |
| author_sort |
Jing Chen |
| title |
Porous g-C3N4 with defects for the efficient dye photodegradation under visible light |
| title_short |
Porous g-C3N4 with defects for the efficient dye photodegradation under visible light |
| title_full |
Porous g-C3N4 with defects for the efficient dye photodegradation under visible light |
| title_fullStr |
Porous g-C3N4 with defects for the efficient dye photodegradation under visible light |
| title_full_unstemmed |
Porous g-C3N4 with defects for the efficient dye photodegradation under visible light |
| title_sort |
porous g-c3n4 with defects for the efficient dye photodegradation under visible light |
| publisher |
IWA Publishing |
| publishDate |
2021 |
| url |
https://doaj.org/article/79bad4ca8ca74dabaa33c12982e5b5b1 |
| work_keys_str_mv |
AT jingchen porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT yagezhang porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT baofanwu porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT zhichaoning porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT miaoyansong porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT haifengzhang porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT xuzhuosun porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT dongjinwan porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight AT boli porousgc3n4withdefectsfortheefficientdyephotodegradationundervisiblelight |
| _version_ |
1718443675907784704 |