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Study on the Synthesis and Photocatalytic Performance of Modified TiO 2 Supported by G‐C 3 N 4 in the Degradation of 2,4‐Dichlorophenoxyacetic Acid
The impact of alkaline hydrothermal treatment on the structure and morphology of Degussa P25 was evaluated. The modification results in a larger surface area, which improves 2,4‐dichlorophenoxyacetic acid (2,4‐D) adsorption capacity and has a remarkable effect on the 2,4‐D photocatalytic degradation...
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Published in: | ChemistrySelect (Weinheim) 2024-03, Vol.9 (12) |
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description | The impact of alkaline hydrothermal treatment on the structure and morphology of Degussa P25 was evaluated. The modification results in a larger surface area, which improves 2,4‐dichlorophenoxyacetic acid (2,4‐D) adsorption capacity and has a remarkable effect on the 2,4‐D photocatalytic degradation. The 30 % mod. TiO
2
/g‐C
3
N
4
and 50 % mod.TiO
2
/g‐C
3
N
4
composites were made by combining the treated Degussa P25 with g‐C
3
N
4
at mass ratios of 30 % and 50 %. Using XRD, SEM, EDX, BET, UV‐vis DRS, and PL, the synthesized materials were physically characterized. When compared to their pure components, the composites show a longer “lifetime” of charge carriers and a reduced energy band gap. The 2,4‐D degradation under visible light irradiation (λ>400 nm) was used to assess their photocatalytic activity. The influence of pH and 2,4‐D initial concentration were investigated. The enhanced 2,4‐D degradation efficiency of more than 80 % is ascribed to the cooperative photocatalytic action of mod.TiO
2
and g‐C
3
N
4
. Both ⋅OH, O
2
⋅
−
radicals and h
+
were the ROS dominating the degradation of 2,4‐D under investigated experimental circumstances. The 2,4‐D photocatalytic degradation follows pseudo‐first order kinetics. The findings of this work indicate that Degussa P25/g‐C
3
N
4
‐based photocatalysts may be employed, depending on the pH conditions, in the wastewater treatment. |
doi_str_mv | 10.1002/slct.202305026 |
format | article |
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2
/g‐C
3
N
4
and 50 % mod.TiO
2
/g‐C
3
N
4
composites were made by combining the treated Degussa P25 with g‐C
3
N
4
at mass ratios of 30 % and 50 %. Using XRD, SEM, EDX, BET, UV‐vis DRS, and PL, the synthesized materials were physically characterized. When compared to their pure components, the composites show a longer “lifetime” of charge carriers and a reduced energy band gap. The 2,4‐D degradation under visible light irradiation (λ>400 nm) was used to assess their photocatalytic activity. The influence of pH and 2,4‐D initial concentration were investigated. The enhanced 2,4‐D degradation efficiency of more than 80 % is ascribed to the cooperative photocatalytic action of mod.TiO
2
and g‐C
3
N
4
. Both ⋅OH, O
2
⋅
−
radicals and h
+
were the ROS dominating the degradation of 2,4‐D under investigated experimental circumstances. The 2,4‐D photocatalytic degradation follows pseudo‐first order kinetics. The findings of this work indicate that Degussa P25/g‐C
3
N
4
‐based photocatalysts may be employed, depending on the pH conditions, in the wastewater treatment.</description><identifier>ISSN: 2365-6549</identifier><identifier>EISSN: 2365-6549</identifier><identifier>DOI: 10.1002/slct.202305026</identifier><language>eng</language><ispartof>ChemistrySelect (Weinheim), 2024-03, Vol.9 (12)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c846-ac1eb79e80b7ea12de09f51a24a8f00e54bcfc82c84237a932322161152648743</citedby><cites>FETCH-LOGICAL-c846-ac1eb79e80b7ea12de09f51a24a8f00e54bcfc82c84237a932322161152648743</cites><orcidid>0000-0001-8509-6408</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Lan, Phung Thi</creatorcontrib><creatorcontrib>Hao, Nguyen Hoang</creatorcontrib><creatorcontrib>Cam, Le Minh</creatorcontrib><title>Study on the Synthesis and Photocatalytic Performance of Modified TiO 2 Supported by G‐C 3 N 4 in the Degradation of 2,4‐Dichlorophenoxyacetic Acid</title><title>ChemistrySelect (Weinheim)</title><description>The impact of alkaline hydrothermal treatment on the structure and morphology of Degussa P25 was evaluated. The modification results in a larger surface area, which improves 2,4‐dichlorophenoxyacetic acid (2,4‐D) adsorption capacity and has a remarkable effect on the 2,4‐D photocatalytic degradation. The 30 % mod. TiO
2
/g‐C
3
N
4
and 50 % mod.TiO
2
/g‐C
3
N
4
composites were made by combining the treated Degussa P25 with g‐C
3
N
4
at mass ratios of 30 % and 50 %. Using XRD, SEM, EDX, BET, UV‐vis DRS, and PL, the synthesized materials were physically characterized. When compared to their pure components, the composites show a longer “lifetime” of charge carriers and a reduced energy band gap. The 2,4‐D degradation under visible light irradiation (λ>400 nm) was used to assess their photocatalytic activity. The influence of pH and 2,4‐D initial concentration were investigated. The enhanced 2,4‐D degradation efficiency of more than 80 % is ascribed to the cooperative photocatalytic action of mod.TiO
2
and g‐C
3
N
4
. Both ⋅OH, O
2
⋅
−
radicals and h
+
were the ROS dominating the degradation of 2,4‐D under investigated experimental circumstances. The 2,4‐D photocatalytic degradation follows pseudo‐first order kinetics. The findings of this work indicate that Degussa P25/g‐C
3
N
4
‐based photocatalysts may be employed, depending on the pH conditions, in the wastewater treatment.</description><issn>2365-6549</issn><issn>2365-6549</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNpNkMtKw0AUhgdRsGi3rs8D2Dq3TJJlabUK1RbafZhMZsxImgkzUzA7H8Gd7-eTmFIRV_858F_gQ-iG4CnBmN6FRsUpxZThBFNxhkaUiWQiEp6f_7sv0TiEN4wxEZmgSTpCX9t4qHpwLcRaw7ZvBwk2gGwr2NQuOiWjbPpoFWy0N87vZas0OAPPrrLG6gp2dg0Utoeucz4Of9nD8vvjcw4MXoCDPVUv9KuXlYx2mBrS9JYPnoVVdeO862rduvdeKn0cmilbXaMLI5ugx796hXYP97v542S1Xj7NZ6uJyriYSEV0meY6w2WqJaGVxrlJiKRcZgZjnfBSGZXRwUxZKnNGGaVEEJJQwbOUsys0PdUq70Lw2hSdt3vp-4Lg4gi2OIIt_sCyH1AebbA</recordid><startdate>20240326</startdate><enddate>20240326</enddate><creator>Lan, Phung Thi</creator><creator>Hao, Nguyen Hoang</creator><creator>Cam, Le Minh</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-8509-6408</orcidid></search><sort><creationdate>20240326</creationdate><title>Study on the Synthesis and Photocatalytic Performance of Modified TiO 2 Supported by G‐C 3 N 4 in the Degradation of 2,4‐Dichlorophenoxyacetic Acid</title><author>Lan, Phung Thi ; Hao, Nguyen Hoang ; Cam, Le Minh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c846-ac1eb79e80b7ea12de09f51a24a8f00e54bcfc82c84237a932322161152648743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lan, Phung Thi</creatorcontrib><creatorcontrib>Hao, Nguyen Hoang</creatorcontrib><creatorcontrib>Cam, Le Minh</creatorcontrib><collection>CrossRef</collection><jtitle>ChemistrySelect (Weinheim)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lan, Phung Thi</au><au>Hao, Nguyen Hoang</au><au>Cam, Le Minh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study on the Synthesis and Photocatalytic Performance of Modified TiO 2 Supported by G‐C 3 N 4 in the Degradation of 2,4‐Dichlorophenoxyacetic Acid</atitle><jtitle>ChemistrySelect (Weinheim)</jtitle><date>2024-03-26</date><risdate>2024</risdate><volume>9</volume><issue>12</issue><issn>2365-6549</issn><eissn>2365-6549</eissn><abstract>The impact of alkaline hydrothermal treatment on the structure and morphology of Degussa P25 was evaluated. The modification results in a larger surface area, which improves 2,4‐dichlorophenoxyacetic acid (2,4‐D) adsorption capacity and has a remarkable effect on the 2,4‐D photocatalytic degradation. The 30 % mod. TiO
2
/g‐C
3
N
4
and 50 % mod.TiO
2
/g‐C
3
N
4
composites were made by combining the treated Degussa P25 with g‐C
3
N
4
at mass ratios of 30 % and 50 %. Using XRD, SEM, EDX, BET, UV‐vis DRS, and PL, the synthesized materials were physically characterized. When compared to their pure components, the composites show a longer “lifetime” of charge carriers and a reduced energy band gap. The 2,4‐D degradation under visible light irradiation (λ>400 nm) was used to assess their photocatalytic activity. The influence of pH and 2,4‐D initial concentration were investigated. The enhanced 2,4‐D degradation efficiency of more than 80 % is ascribed to the cooperative photocatalytic action of mod.TiO
2
and g‐C
3
N
4
. Both ⋅OH, O
2
⋅
−
radicals and h
+
were the ROS dominating the degradation of 2,4‐D under investigated experimental circumstances. The 2,4‐D photocatalytic degradation follows pseudo‐first order kinetics. The findings of this work indicate that Degussa P25/g‐C
3
N
4
‐based photocatalysts may be employed, depending on the pH conditions, in the wastewater treatment.</abstract><doi>10.1002/slct.202305026</doi><orcidid>https://orcid.org/0000-0001-8509-6408</orcidid></addata></record> |
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title | Study on the Synthesis and Photocatalytic Performance of Modified TiO 2 Supported by G‐C 3 N 4 in the Degradation of 2,4‐Dichlorophenoxyacetic Acid |
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