个人信息Personal Information
副教授
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:环境学院
学科:环境科学. 环境工程
办公地点:环境楼B509
联系方式:13889406768
电子邮箱:zhguoquan@dlut.edu.cn
Synergetic adsorption and catalytic oxidation performance originating from leafy graphite nanosheet anchored iron(II) phthalocyanine nanorods for efficient organic dye degradation
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论文类型:期刊论文
第一作者:Yuan, Guangen
通讯作者:Zhang, GQ (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116023, Peoples R China.
合写作者:Zhang, Guoquan,Zhou, Yufei,Yang, Fenglin
发表时间:2015-01-01
发表刊物:RSC ADVANCES
收录刊物:SCIE、EI、Scopus
卷号:5
期号:33
页面范围:26132-26140
ISSN号:2046-2069
摘要:Leafy graphite nanosheet anchored iron(II) phthalocyanine nanorods (FePc@LGNS) were facilely synthesized without using a complex covalent anchoring procedure. FE-SEM, XRD, FTIR, and XPS characterizations confirmed the molecular configuration of FePc on the LGNS surface. The interlaced hydrophobic/hydrophilic regions and large specific-surface-area of the FePc@LGNS hybrid not only improved the adsorption capacity, but also promoted the oxidative ability of the FePc@LGNS-H2O2 system due to sufficient FePc catalytic active sites on LGNS surface. The optimal conditions for CR removal were initially pH 6.98, 50 mM H2O2 and 1.0 g L-1 FePc@LGNS hybrid. Different from the classical Fenton process, high-valent iron(IV)-oxo complexes and hydroxyl radicals are responsible for Congo red (CR) oxidative degradation. Liquid chromatography-mass spectrometry (LC-MS) analysis demonstrated the effective cleavage of both azo bonds and C-C bonds of CR molecules. A plausible oxidation mechanism of the FePc@LGNS-H2O2 system and the degradation pathway of CR were proposed. This FePc@LGNS-H2O2 system could be a highly efficient oxidation process for recalcitrant pollutants elimination over a wide pH range.
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