Mechanochemical homodisperse of Bi2MoO6 on Zn-Al LDH matrix to form Z-scheme heterojunction with promoted visible-light photocatalytic performance

Li，Xiangyang1; Ma，Tian1; Dong，Lixin1; Na，Yu1; Liu，Yumo1; Li，Zhao1; Zheng，Renji2; Dai，Shujuan1; Zhao，Tonglin1

2022-03-01

10.1016/j.apt.2022.103468

ADVANCED POWDER TECHNOLOGY   影响因子和分区

0921-8831

1568-5527

In this work, a Z-scheme BiMoO/Zn-Al LDH heterojunction photocatalyst with excellent visible light responsiveness was fabricated via a two-step mechanochemical ball-milling process, where amorphous BiMoO particles were homodispersed upon the surface of lamellar LDH matrix. BPA was selected as the targeted organic contaminant to quantitatively evaluate the photocatalytic capacity of BiMoO/Zn-Al LDH, in which the optimal 30 wt%BiMoO/LDH exhibited a degradation rate of 96% within 300 min, over 9.25 and 18.5 times higher than that of individual pristine BiMoO and LDH, respectively. The crystal structure, microtopography, interfacial physicochemical interaction, optical and electrochemical properties of as-fabricated hybrids were systematically evaluated, and the DFT theoretical calculation was used to confirm the electronic structural characteristics in the BiMoO/LDH heterojunction. A possible photocatalysis reaction mechanism was interpreted through ESR where the major manner of •O proved the Z-scheme electron migration within matched band levels.

Bi2MoO6 LDH Mechanochemistry Photocatalysis Z-scheme

SCI ; EI

英语

其他

Special Fund for Scientific Research of USTL[2019RC03] ; Natural Science Foundation of Liaoning Province[2020-BS-224] ; Education Department Foun-dation of Liaoning Province[2020LNQN13] ; Liaoning Revital-ization Talents Program[XLYC 2002028] ; College Student Innovation and Entrepreneurship Training Program of USTL[S202110146068]

Engineering

Engineering, Chemical

WOS:000800442500002

ELSEVIER

20220711618642

Binary alloys ; Crystal structure ; Degradation ; Heterojunctions ; Light ; Milling (machining) ; Photocatalytic activity ; Physicochemical properties

Machining Operations:604.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Crystal Lattice:933.1.1

CHEMISTRY

2-s2.0-85124230464

Scopus

1.School of Mining Engineering,University of Science and Technology Liaoning,Anshan,Liaoning,114051,China
2.School of Environmental Science and Engineering,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Li，Xiangyang,Ma，Tian,Dong，Lixin,et al. Mechanochemical homodisperse of Bi2MoO6 on Zn-Al LDH matrix to form Z-scheme heterojunction with promoted visible-light photocatalytic performance[J]. ADVANCED POWDER TECHNOLOGY,2022,33(3).

Li，Xiangyang.,Ma，Tian.,Dong，Lixin.,Na，Yu.,Liu，Yumo.,...&Zhao，Tonglin.(2022).Mechanochemical homodisperse of Bi2MoO6 on Zn-Al LDH matrix to form Z-scheme heterojunction with promoted visible-light photocatalytic performance.ADVANCED POWDER TECHNOLOGY,33(3).

Li，Xiangyang,et al."Mechanochemical homodisperse of Bi2MoO6 on Zn-Al LDH matrix to form Z-scheme heterojunction with promoted visible-light photocatalytic performance".ADVANCED POWDER TECHNOLOGY 33.3(2022).