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Dependence of the intrinsic phase structure of Bi 2 O 3 catalysts on photocatalytic CO 2 reduction
Rapid recombination of charge carriers and the low efficiency of surface catalysis limit the photocatalytic CO 2 reduction performance. Herein, models of Bi 2 O 3 with different phase structures were investigated to achieve in-depth understanding of the role that phase structure plays in the photoca...
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| Published in: | Catalysis science & technology 2021-03, Vol.11 (6), p.2021-2025 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c76D-652e7eaced72a45be326876b2173143743326ef74ea8d9dfd62340bba8ae35fd3 |
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| cites | cdi_FETCH-LOGICAL-c76D-652e7eaced72a45be326876b2173143743326ef74ea8d9dfd62340bba8ae35fd3 |
| container_end_page | 2025 |
| container_issue | 6 |
| container_start_page | 2021 |
| container_title | Catalysis science & technology |
| container_volume | 11 |
| creator | Wei, Liujin Huang, Guan Zhang, Yajun |
| description | Rapid recombination of charge carriers and the low efficiency of surface catalysis limit the photocatalytic CO
2
reduction performance. Herein, models of Bi
2
O
3
with different phase structures were investigated to achieve in-depth understanding of the role that phase structure plays in the photocatalytic CO
2
process. The gamma phase of Bi
2
O
3
(γ-Bi
2
O
3
) exhibited significantly enhanced charge separation ability compared with that of the alpha phase (α-Bi
2
O
3
) and beta phase (β-Bi
2
O
3
). Charge-carrier dynamics revealed that the decay lifetime was increased in γ-Bi
2
O
3
, indicating the enhanced charge carrier separation and migration ability in the γ phase of Bi
2
O
3
. As expected, the γ-Bi
2
O
3
photocatalyst exhibited a remarkably improved photocatalytic CO
2
reduction activity of 48.10 μmol h
−1
g
−1
, which was nearly 3.19 and 1.62 times higher than that of α-Bi
2
O
3
and β-Bi
2
O
3
, respectively. This work indicates how phase structure affects charge separation and photocatalytic activity, and could open new opportunities for achieving highly efficient photocatalysts and reaction systems. |
| doi_str_mv | 10.1039/D1CY00286D |
| format | article |
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2
reduction performance. Herein, models of Bi
2
O
3
with different phase structures were investigated to achieve in-depth understanding of the role that phase structure plays in the photocatalytic CO
2
process. The gamma phase of Bi
2
O
3
(γ-Bi
2
O
3
) exhibited significantly enhanced charge separation ability compared with that of the alpha phase (α-Bi
2
O
3
) and beta phase (β-Bi
2
O
3
). Charge-carrier dynamics revealed that the decay lifetime was increased in γ-Bi
2
O
3
, indicating the enhanced charge carrier separation and migration ability in the γ phase of Bi
2
O
3
. As expected, the γ-Bi
2
O
3
photocatalyst exhibited a remarkably improved photocatalytic CO
2
reduction activity of 48.10 μmol h
−1
g
−1
, which was nearly 3.19 and 1.62 times higher than that of α-Bi
2
O
3
and β-Bi
2
O
3
, respectively. This work indicates how phase structure affects charge separation and photocatalytic activity, and could open new opportunities for achieving highly efficient photocatalysts and reaction systems.</description><identifier>ISSN: 2044-4753</identifier><identifier>EISSN: 2044-4761</identifier><identifier>DOI: 10.1039/D1CY00286D</identifier><language>eng</language><ispartof>Catalysis science & technology, 2021-03, Vol.11 (6), p.2021-2025</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c76D-652e7eaced72a45be326876b2173143743326ef74ea8d9dfd62340bba8ae35fd3</citedby><cites>FETCH-LOGICAL-c76D-652e7eaced72a45be326876b2173143743326ef74ea8d9dfd62340bba8ae35fd3</cites><orcidid>0000-0002-5654-554X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Wei, Liujin</creatorcontrib><creatorcontrib>Huang, Guan</creatorcontrib><creatorcontrib>Zhang, Yajun</creatorcontrib><title>Dependence of the intrinsic phase structure of Bi 2 O 3 catalysts on photocatalytic CO 2 reduction</title><title>Catalysis science & technology</title><description>Rapid recombination of charge carriers and the low efficiency of surface catalysis limit the photocatalytic CO
2
reduction performance. Herein, models of Bi
2
O
3
with different phase structures were investigated to achieve in-depth understanding of the role that phase structure plays in the photocatalytic CO
2
process. The gamma phase of Bi
2
O
3
(γ-Bi
2
O
3
) exhibited significantly enhanced charge separation ability compared with that of the alpha phase (α-Bi
2
O
3
) and beta phase (β-Bi
2
O
3
). Charge-carrier dynamics revealed that the decay lifetime was increased in γ-Bi
2
O
3
, indicating the enhanced charge carrier separation and migration ability in the γ phase of Bi
2
O
3
. As expected, the γ-Bi
2
O
3
photocatalyst exhibited a remarkably improved photocatalytic CO
2
reduction activity of 48.10 μmol h
−1
g
−1
, which was nearly 3.19 and 1.62 times higher than that of α-Bi
2
O
3
and β-Bi
2
O
3
, respectively. This work indicates how phase structure affects charge separation and photocatalytic activity, and could open new opportunities for achieving highly efficient photocatalysts and reaction systems.</description><issn>2044-4753</issn><issn>2044-4761</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpFkD9PwzAUxC0EElXpwifwjBTwv9jJCAkUpEpZujBFjv2sGhW7st2h355AEdzyTqffveEQuqXknhLePvS0eyeENbK_QAtGhKiEkvTyz9f8Gq1y_iCzREtJwxZo6uEAwUIwgKPDZQfYh5J8yN7gw05nwLmkoynH9AM8eczwgDk2uuj9KZeMY5jBWOI5KXOvG2YogZ1rPoYbdOX0PsPq9y7R9uV5271Wm2H91j1uKqNkX8magQJtwCqmRT0BZ7JRcmJUcSq4EnwOwCkBurGtdVYyLsg06UYDr53lS3R3fmtSzDmBGw_Jf-p0GikZv_cZ__fhXw5GV4o</recordid><startdate>20210329</startdate><enddate>20210329</enddate><creator>Wei, Liujin</creator><creator>Huang, Guan</creator><creator>Zhang, Yajun</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-5654-554X</orcidid></search><sort><creationdate>20210329</creationdate><title>Dependence of the intrinsic phase structure of Bi 2 O 3 catalysts on photocatalytic CO 2 reduction</title><author>Wei, Liujin ; Huang, Guan ; Zhang, Yajun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c76D-652e7eaced72a45be326876b2173143743326ef74ea8d9dfd62340bba8ae35fd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wei, Liujin</creatorcontrib><creatorcontrib>Huang, Guan</creatorcontrib><creatorcontrib>Zhang, Yajun</creatorcontrib><collection>CrossRef</collection><jtitle>Catalysis science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wei, Liujin</au><au>Huang, Guan</au><au>Zhang, Yajun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dependence of the intrinsic phase structure of Bi 2 O 3 catalysts on photocatalytic CO 2 reduction</atitle><jtitle>Catalysis science & technology</jtitle><date>2021-03-29</date><risdate>2021</risdate><volume>11</volume><issue>6</issue><spage>2021</spage><epage>2025</epage><pages>2021-2025</pages><issn>2044-4753</issn><eissn>2044-4761</eissn><abstract>Rapid recombination of charge carriers and the low efficiency of surface catalysis limit the photocatalytic CO
2
reduction performance. Herein, models of Bi
2
O
3
with different phase structures were investigated to achieve in-depth understanding of the role that phase structure plays in the photocatalytic CO
2
process. The gamma phase of Bi
2
O
3
(γ-Bi
2
O
3
) exhibited significantly enhanced charge separation ability compared with that of the alpha phase (α-Bi
2
O
3
) and beta phase (β-Bi
2
O
3
). Charge-carrier dynamics revealed that the decay lifetime was increased in γ-Bi
2
O
3
, indicating the enhanced charge carrier separation and migration ability in the γ phase of Bi
2
O
3
. As expected, the γ-Bi
2
O
3
photocatalyst exhibited a remarkably improved photocatalytic CO
2
reduction activity of 48.10 μmol h
−1
g
−1
, which was nearly 3.19 and 1.62 times higher than that of α-Bi
2
O
3
and β-Bi
2
O
3
, respectively. This work indicates how phase structure affects charge separation and photocatalytic activity, and could open new opportunities for achieving highly efficient photocatalysts and reaction systems.</abstract><doi>10.1039/D1CY00286D</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-5654-554X</orcidid></addata></record> |
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| ispartof | Catalysis science & technology, 2021-03, Vol.11 (6), p.2021-2025 |
| issn | 2044-4753 2044-4761 |
| language | eng |
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| source | Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list) |
| title | Dependence of the intrinsic phase structure of Bi 2 O 3 catalysts on photocatalytic CO 2 reduction |
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