Top-down fabrication of hematite mesocrystals with tunable morphologies

被引：19

作者：

Cai, Jinguang ^{[1
]}

Chen, Suyue ^{[1
]}

Hu, Jun ^{[1
]}

Wang, Zhi ^{[1
]}

Ma, Yurong ^{[1
]}

Qi, Limin ^{[1
]}

机构：

[1] Peking Univ, Coll Chem, State Key Lab Struct Chem Stable & Unstable Speci, BNLMS, Beijing 100871, Peoples R China

来源：

CRYSTENGCOMM | 2013年 / 15卷 / 32期

关键词：

FLOWERLIKE ALPHA-FE2O3 NANOSTRUCTURES; LARGE-SCALE SYNTHESIS; SPHERES; GROWTH;

D O I：

10.1039/c3ce40414e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel hematite mesocrystals including hierarchical microcones and microdiscs were synthesized by selective HCl etching of hematite pseudocubes. These porous mesocrystals adopting a single-crystal-like structure consist of radially aligned alpha-Fe2O3 nanorods, which elucidates the intrinsic mesocrystalline structure of the initial hematite pseudocubes. The hematite mesocrystals exhibited enhanced visible-light photocatalytic activity and high Cr(VI) removal capacity. This result provides an effective top-down approach towards mesocrystals with tunable morphologies and architectures.

引用

页码：6284 / 6288

页数：5

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