Multistep synthesis of AgBr quantum dots coupled porous BiOBr spheres for enhanced photocatalysis

Micro & nano letters

article

Rui-Juan Qi¹  Li-Xia Yang²  Chen-Yu Yi²  Chun-Liang Hang²  Qian Liu² 

[1] Department of Electronic Engineering, Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University;School of Chemistry and Materials Science, Ludong University

关键词: silver compounds;    quantum dots;    bismuth compounds;    nanoporous materials;    porosity;    nanocomposites;    catalysis;    photochemistry;    catalysts;    nanofabrication;    oxidation;    reduction (chemical);    precipitation;    X-ray diffraction;    transmission electron microscopy;    crystal microstructure;    dyes;    multistep synthesis;    silver bromide quantum dots;    porous bismuth oxide bromide spheres;    photocatalysis;    three-step route;    solvothermal method;    ethylene glycol;    reducing agent;    redox reaction;    in situ precipitation;    powders;    powder X-ray diffraction;    phase confirmation;    transmission electron microscopy;    microstructure evolution;    two-dimensional nanosheets;    microstructure;    morphology;    high photocatalytic activity;    rhodamine B dye degradation;    AgBr-BiOBr;   

DOI  :  10.1049/mnl.2017.0815

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The aim of this study was to study chemical constituents of aerial parts of Cardaria draba since no phytochemical investigation had been studied before in Iraq. Aerial parts of Cardaria draba were defatted by maceration in hexane for 72 h. The defatted plant materials were extracted using Soxhlet apparatus, the aqueous Methanol 90% as a solvent extraction for 18 h, and fractionated with petroleum ether- chloroform (CHCl3)- ethylacetate- and n-butanol respectivly. The ethyl acetate, n-butanol, and n-butanol after hydrolysis fractions were investigated by high performance liquid chromatography (HPLC) and thin-layer chromatography (TLC) for its phenolic acid and flavonoid contents. Flavonoids and phenolic acid derivative were isolated from the ethylacetate of leaf fraction and n-butanol after hydrolysis fraction of the aerial parts and identified by TLC, FTIR and HPLC. A various chromatographic and spectroscopic results shown the presence of luteolin, chlorogenic acid, caffeic acid, and resorcinol in aerial parts of C. draba.

【 授权许可】

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