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In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants
A new heterojunction material BP/RP-g-C(3)N(4)/SiO(2) was obtained by a one-step ball milling method, and its photocatalytic capacity was researched by the degradation of Rhodamine B (RhB) and ofloxacin (OFL) in simulated sunlight. The construction of an in situ BP/RP heterojunction can achieve perf...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Royal Society of Chemistry
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10140671/ https://www.ncbi.nlm.nih.gov/pubmed/37124021 http://dx.doi.org/10.1039/d3ra01850d |
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author | Li, Jiancheng Wang, Chi Ma, Yixing Li, Kai Mei, Yi |
author_facet | Li, Jiancheng Wang, Chi Ma, Yixing Li, Kai Mei, Yi |
author_sort | Li, Jiancheng |
collection | PubMed |
description | A new heterojunction material BP/RP-g-C(3)N(4)/SiO(2) was obtained by a one-step ball milling method, and its photocatalytic capacity was researched by the degradation of Rhodamine B (RhB) and ofloxacin (OFL) in simulated sunlight. The construction of an in situ BP/RP heterojunction can achieve perfect interface contact between different semiconductors and effectively promote the separation of photogenerated carriers. The composite material was well characterized, which proved that the multi-heterogeneous structure was prepared. Furthermore, the type II heterojunction was formed between the g-C(3)N(4) and BP/RP interface, playing an important role in the degradation and promoting electron transfer. The degradation effect of BP/RP-g-C(3)N(4)/SiO(2) on RhB reached 90% after 26 min of simulated solar irradiation, which was 1.8 times that of g-C(3)N(4)/SiO(2). The degradation of OFL by BP/RP-g-C(3)N(4)/SiO(2) reached 85.3% after illumination for 50 min, while the degradation of g-C(3)N(4)/SiO(2) was only 35.4%. The mechanisms were further discussed, and ˙O(2)(−) and h(+) were found to be the main active substances to degrade RhB. The catalyst also revealed distinguished stability of catalyst and recyclability, and the degradation effect of RhB can still realize 85% after 4 runs of experiment. Thus, this study provided a novel method for the design and preparation of multi-heterojunction catalysts in the removal of organic pollutants from wastewater. |
format | Online Article Text |
id | pubmed-10140671 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-101406712023-04-29 In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants Li, Jiancheng Wang, Chi Ma, Yixing Li, Kai Mei, Yi RSC Adv Chemistry A new heterojunction material BP/RP-g-C(3)N(4)/SiO(2) was obtained by a one-step ball milling method, and its photocatalytic capacity was researched by the degradation of Rhodamine B (RhB) and ofloxacin (OFL) in simulated sunlight. The construction of an in situ BP/RP heterojunction can achieve perfect interface contact between different semiconductors and effectively promote the separation of photogenerated carriers. The composite material was well characterized, which proved that the multi-heterogeneous structure was prepared. Furthermore, the type II heterojunction was formed between the g-C(3)N(4) and BP/RP interface, playing an important role in the degradation and promoting electron transfer. The degradation effect of BP/RP-g-C(3)N(4)/SiO(2) on RhB reached 90% after 26 min of simulated solar irradiation, which was 1.8 times that of g-C(3)N(4)/SiO(2). The degradation of OFL by BP/RP-g-C(3)N(4)/SiO(2) reached 85.3% after illumination for 50 min, while the degradation of g-C(3)N(4)/SiO(2) was only 35.4%. The mechanisms were further discussed, and ˙O(2)(−) and h(+) were found to be the main active substances to degrade RhB. The catalyst also revealed distinguished stability of catalyst and recyclability, and the degradation effect of RhB can still realize 85% after 4 runs of experiment. Thus, this study provided a novel method for the design and preparation of multi-heterojunction catalysts in the removal of organic pollutants from wastewater. The Royal Society of Chemistry 2023-04-28 /pmc/articles/PMC10140671/ /pubmed/37124021 http://dx.doi.org/10.1039/d3ra01850d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Li, Jiancheng Wang, Chi Ma, Yixing Li, Kai Mei, Yi In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants |
title |
In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants |
title_full |
In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants |
title_fullStr |
In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants |
title_full_unstemmed |
In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants |
title_short |
In situ formation of red/black phosphorus-modified SiO(2)@g-C(3)N(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants |
title_sort | in situ formation of red/black phosphorus-modified sio(2)@g-c(3)n(4) multi-heterojunction for the enhanced photocatalytic degradation of organic contaminants |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10140671/ https://www.ncbi.nlm.nih.gov/pubmed/37124021 http://dx.doi.org/10.1039/d3ra01850d |
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