A Z-scheme BiOCl/UiO-66(Zr/Ti) heterojunction with engineered interfacial contacts for synergistic pollutant mineralization and selective sulfoxidation.
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| Title: | A Z-scheme BiOCl/UiO-66(Zr/Ti) heterojunction with engineered interfacial contacts for synergistic pollutant mineralization and selective sulfoxidation. |
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| Authors: | Wu, Wentao1 (AUTHOR), Wu, Xingxing2 (AUTHOR), Peng, Chenkai1 (AUTHOR), Zhao, Yang3 (AUTHOR), Zhao, Danxia1 (AUTHOR) danxia@tzc.edu.cn |
| Source: | CrystEngComm. 7/6/2026, Vol. 28 Issue 26, p4007-4018. 12p. |
| Subjects: | Electrostatic fields, Metal-organic frameworks, Sulfinyl compounds, Photocatalysis, Holes (Electron deficiencies) |
| Abstract: | Simultaneous deep mineralization of pollutants and selective oxidation of value-added substrates remains challenging due to the conflicting reactivity requirements of ·OH and 1O2. Here we construct a Z-scheme BiOCl/UiO-66(Zr/Ti) heterojunction in which work-function mismatch generates a built-in electric field that directs electrons to the MOF and holes to BiOCl. Ti is atomically dispersed within the UiO-66 framework, as confirmed by XAS and DFT, forming Zr–O–Ti bridges and oxygen vacancies that enhance charge separation. This spatial charge compartmentalization enables dual-ROS pathways: electrons accumulated on UiO-66 reduce O2 to ·OH for deep mineralization (98% dye decolorization, 88% TOC removal), while holes retained on BiOCl generate 1O2 for selective sulfoxidation (70% conversion, 99% selectivity). Trace rhodamine B acts as an in situ photosensitizer, amplifying both pathways via electron injection and triplet energy transfer. The colloidal architecture maintains >90% activity in real water matrices and over eight cycles with low energy consumption. This work establishes interfacial electric field engineering as a generalizable strategy to integrate environmental remediation and selective synthesis in a single photocatalytic platform. [ABSTRACT FROM AUTHOR] |
| Copyright of CrystEngComm is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: A Z-scheme BiOCl/UiO-66(Zr/Ti) heterojunction with engineered interfacial contacts for synergistic pollutant mineralization and selective sulfoxidation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wu%2C+Wentao%22">Wu, Wentao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Xingxing%22">Wu, Xingxing</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peng%2C+Chenkai%22">Peng, Chenkai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Yang%22">Zhao, Yang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Danxia%22">Zhao, Danxia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> danxia@tzc.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22CrystEngComm%22">CrystEngComm</searchLink>. 7/6/2026, Vol. 28 Issue 26, p4007-4018. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electrostatic+fields%22">Electrostatic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Metal-organic+frameworks%22">Metal-organic frameworks</searchLink><br /><searchLink fieldCode="DE" term="%22Sulfinyl+compounds%22">Sulfinyl compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Photocatalysis%22">Photocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Holes+%28Electron+deficiencies%29%22">Holes (Electron deficiencies)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Simultaneous deep mineralization of pollutants and selective oxidation of value-added substrates remains challenging due to the conflicting reactivity requirements of ·OH and 1O2. Here we construct a Z-scheme BiOCl/UiO-66(Zr/Ti) heterojunction in which work-function mismatch generates a built-in electric field that directs electrons to the MOF and holes to BiOCl. Ti is atomically dispersed within the UiO-66 framework, as confirmed by XAS and DFT, forming Zr–O–Ti bridges and oxygen vacancies that enhance charge separation. This spatial charge compartmentalization enables dual-ROS pathways: electrons accumulated on UiO-66 reduce O2 to ·OH for deep mineralization (98% dye decolorization, 88% TOC removal), while holes retained on BiOCl generate 1O2 for selective sulfoxidation (70% conversion, 99% selectivity). Trace rhodamine B acts as an in situ photosensitizer, amplifying both pathways via electron injection and triplet energy transfer. The colloidal architecture maintains >90% activity in real water matrices and over eight cycles with low energy consumption. This work establishes interfacial electric field engineering as a generalizable strategy to integrate environmental remediation and selective synthesis in a single photocatalytic platform. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of CrystEngComm is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1039/d6ce00195e Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 4007 Subjects: – SubjectFull: Electrostatic fields Type: general – SubjectFull: Metal-organic frameworks Type: general – SubjectFull: Sulfinyl compounds Type: general – SubjectFull: Photocatalysis Type: general – SubjectFull: Holes (Electron deficiencies) Type: general Titles: – TitleFull: A Z-scheme BiOCl/UiO-66(Zr/Ti) heterojunction with engineered interfacial contacts for synergistic pollutant mineralization and selective sulfoxidation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wu, Wentao – PersonEntity: Name: NameFull: Wu, Xingxing – PersonEntity: Name: NameFull: Peng, Chenkai – PersonEntity: Name: NameFull: Zhao, Yang – PersonEntity: Name: NameFull: Zhao, Danxia IsPartOfRelationships: – BibEntity: Dates: – D: 06 M: 07 Text: 7/6/2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14668033 Numbering: – Type: volume Value: 28 – Type: issue Value: 26 Titles: – TitleFull: CrystEngComm Type: main |
| ResultId | 1 |
