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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：工业催化. 能源化工. 物理化学
办公地点：西校区化工实验楼B525
电子邮箱：liganghg@dlut.edu.cn
Rhodamine B immobilized on hollow Au-HMS material for naked-eye detection of Hg2+ in aqueous media
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论文类型：期刊论文
发表时间：2012-08-30
发表刊物：JOURNAL OF HAZARDOUS MATERIALS
收录刊物：SCIE、EI、PubMed、Scopus
卷号：229
页面范围：404-410
ISSN号：0304-3894
关键字：Chemosensor; Au-HMS; RhB probe; Mercury ion
摘要：A simple, effective method has been demonstrated to immobilize Rhodamine B (RhB) probes on mesoporous silica (Au-HMS). The prepared chemosensor (Au-HMS-Probe) was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), UV-vis spectrum and Fourier transform infrared spectroscopy (FT-IR). Further application of Au-HMS-Probe in sensing Hg2+ was confirmed by fluorescence titration experiment. Au-HMS-Probe afforded "turn-on" fluorescence enhancement and displayed high brightness in water, and it also showed excellent selectivity for Hg2+ over alkali (Na+, K+), alkaline earth (Mg2+, Ca2+) and other heavy metal ions (Ag+, Cd2+, Co2+, Pb2+, Ni2+, Cu2+, Fe2+). Importantly, Au-HMS-Probe could be regenerated by treatment with tetrapropylammonium hydroxide solution. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.