Hollow InVO4 Nanocuboid Assemblies toward Promoting Photocatalytic N2 Conversion Performance

被引：44

作者：

Han, Qiutong ^{[1
]}

Bai, Xiaowan ^{[2
]}

Chen, Jingming ^{[1
]}

Feng, Shengnan ^{[1
]}

Gao, Wa ^{[1
]}

Tu, Wenguang ^{[3
]}

Wang, Xiaoyong ^{[1
]}

Wang, Jinlan ^{[2
]}

Jia, Bi ^{[4
]}

Shen, Qing ^{[5
]}

Zhou, Yong ^{[1
,3
]}

Zou, Zhigang ^{[1
,3
]}

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Jiangsu Key Lab Nano Technol,Sch Phys, Inst Acoust,Key Lab Modern Acoust MOE,Ecomat & Re, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China

[2] Southeast Univ, Sch Phys, Nanjing 211189, Jiangsu, Peoples R China

[3] Chinese Univ Hong Kong Shenzhen, Sch Sci & Engn, Guangzhou 518172, Peoples R China

[4] Chongqing Univ Sci & Technol, Sch Met & Mat Engn, Chongqing 401331, Peoples R China

[5] Univ Electrocommun, Fac Informat & Engn, Tokyo 1828585, Japan

来源：

ADVANCED MATERIALS | 2021年 / 33卷 / 39期

基金：

国家重点研发计划;

关键词：

charge transfer; InVO; (4); mesocrystals; photocatalytic N; (2) conversion; self-assembly; NITROGEN-FIXATION; AMMONIA-SYNTHESIS; EFFICIENT; MESOCRYSTALS; SUPERSTRUCTURES; CRYSTALLIZATION; NANOPARTICLES; MICROSPHERES; SEPARATION; NANOSHEETS;

D O I：

10.1002/adma.202006780

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The unique InVO4 mesocrystal superstructure, particularly with cubical skeleton and hollow interior, which consists of numerous nanocube building blocks, closely stacking by stacking, aligning by aligning, and sharing the same crystallographic orientations, is successfully fabricated. The synergy of a reaction-limited aggregation and an Ostwald ripening process is reasonably proposed for the growth of this unique superstructure. Both single-particle surface photovoltage and confocal fluorescence spectroscopy measurements demonstrate that the long-range ordered mesocrystal superstructures can significantly retard the recombination of electron-hole pairs through the creation of a new pathway for anisotropic electron flow along the inter-nanocubes. This promising charge mobility feature of the superstructure greatly contributes to the pronounced photocatalytic performance of the InVO4 mesocrystal toward fixation of N-2 into NH3 with the quantum yield of 0.50% at wavelength of 385 nm.

引用

页数：10

共 52 条

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