γ-铋钒酸盐——一种用于水相介质中离子交换的层状氧化物材料。

Gamma-BiVO - a layered oxide material for ion exchange in aqueous media.

作者信息

Lv Peiwen, Huang Feng

机构信息

CAS Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 China

School of Materials, Sun Yat-sen University Guangzhou 510275 China

出版信息

RSC Adv. 2019 Mar 15;9(15):8650-8653. doi: 10.1039/c8ra09565e. eCollection 2019 Mar 12.

DOI:10.1039/c8ra09565e

PMID:35518657

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9062086/

Abstract

Layered perovskite oxides have attracted considerable attention due to their potential application in photoelectricity and catalysis. The unique character of layered perovskites as ion-exchange materials provides the possibility of creating structural diversity. A new ion-exchange reaction in aqueous solution was observed in layered oxide gamma-BiVO. When employed in ion exchange, gamma-BiVO is converted into the scheelite-type phase (ABO) by selectively discarding Aurivillius-type sheets, and is also converted into the A2X3 phase by selectively dissolving perovskite-like layers. Metal-doped BiVO and BiO were obtained using such an ion-exchange reaction.

摘要

层状钙钛矿氧化物因其在光电和催化方面的潜在应用而备受关注。层状钙钛矿作为离子交换材料的独特特性为创造结构多样性提供了可能性。在层状氧化物γ-BiVO₄中观察到了一种新的水溶液离子交换反应。当用于离子交换时，γ-BiVO₄通过选择性地丢弃奥里维利乌斯型片层而转变为白钨矿型相（ABO₄），并且还通过选择性地溶解类钙钛矿层而转变为A₂X₃相。利用这种离子交换反应获得了金属掺杂的BiVO₄和Bi₂O₃。