Facile construction of tourmaline@MOFs composites via micron-scale electrical polarization to enhance photodegradation of gaseous formaldehyde - Details

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Abstract：

The　functional　composition　approach　for　promoting　metal–organic　framework　(MOF)-based　photo-catalysis　has　usually　been　hampered　by　grain　incompatibility,　resulting　in　an　insufficient　contact　interface.　Herein,　spontaneously　polarized　tourmaline　(TM)　was　proposed　to　be　combined　with　MOFs　to　generate　a　polarization-induced　electric　field　on　a　micron-scale,　which　could　improve　HCHO　photocatalytic　degradation　performance.　Based　on　the　micron-scale　electrical　polarization　strategy,　facile　micron-interface　construction　in　TM-ZrO2@NU66　(NH2-UiO-66,　UiO　=　University　of　Oslo)　and　TM-TiO2@NM125　(NH2-MIL-125,　MIL　=　Materials　Institute　Lavoisier)　dramatically　improved　the　remnant　polarization　(2.8　and　2.4　times),　charge　transfer　rate　(3.8　and　5.9　times),　and　•OH/•O2-/h+　formation.　Consequently,　two　TM@MOFs　exhibited　6–90　times　higher　formaldehyde　removal　rates　than　previously　reported　state-of-the-art　photocatalysts.　The　fabricated　composites　exhibited　a　high　mineralization　rate,　deep　formaldehyde　removal　(＞80　%　of　total　organic　carbon　(TOC)　removal　within　150　min),　and　outstanding　recycling　stability.　This　study　narrates　an　innovative　and　straightforward　method　for　creating　composites　based　on　MOFs,　significantly　reducing　the　challenges　associated　with　ensuring　MOF　compatibility　with　other　functional　materials.　©　2023　Elsevier　B.V.

Keyword：

Tourmaline@MOF composites Adsorption catalytic synergy Efficient carrier separation Formaldehyde photodegradation Micron-scale electrical polarization

Author Community：

[ 1 ] [He J.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 2 ] [Yu X.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 3 ] [Luan X.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 4 ] [Li H.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 5 ] [Shah S.J.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 6 ] [Su W.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 7 ] [Jia Z.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 8 ] [Chen J.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 9 ] [Zhou L.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 10 ] [Deng J.]Department of Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China
[ 11 ] [Zhao Z.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 12 ] [Huang Z.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
[ 13 ] [Zhao Z.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China

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2022，CHEMICAL ENGINEERING JOURNAL

Source ：

Chemical Engineering Journal

ISSN： 1385-8947

Year： 2024

Volume： 479

1 5 . 1 0 0

JCR@2022

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 13

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 9

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