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介孔Cu-Al2O3纳米纤维类芬顿氧化降解双酚A

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惠劭华, 李一兵, 王雁, 呼瑞琪, 李霞, 刘思琦, 朱海洋, 赵旭. 介孔Cu-Al2O3纳米纤维类芬顿氧化降解双酚A[J]. 环境化学, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
引用本文: 惠劭华, 李一兵, 王雁, 呼瑞琪, 李霞, 刘思琦, 朱海洋, 赵旭. 介孔Cu-Al2O3纳米纤维类芬顿氧化降解双酚A[J]. 环境化学, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
shu
HUI Shaohua, LI Yibing, WANG Yan, HU Ruiqi, LI Xia, LIU Siqi, ZHU Haiyang, ZHAO Xu. Fenton-like oxidative degradation of bisphenol A by mesoporous Cu-Al2O3 nanofibers[J]. Environmental Chemistry, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
Citation: HUI Shaohua, LI Yibing, WANG Yan, HU Ruiqi, LI Xia, LIU Siqi, ZHU Haiyang, ZHAO Xu. Fenton-like oxidative degradation of bisphenol A by mesoporous Cu-Al2O3 nanofibers[J]. Environmental Chemistry, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
shu

介孔Cu-Al2O3纳米纤维类芬顿氧化降解双酚A

  • 1. 河北工业大学土木与交通学院, 天津, 300401;

  • 2. 中国科学院生态环境研究中心, 环境水质学实验室, 北京, 100085;

  • 3. 天津中怡建筑规划设计有限公司, 天津, 300193;

  • 4. 北京首创股份有限公司, 北京, 100028

    • 通讯作者: 赵旭, E-mail: tel:13693262989
  • 基金项目:

    国家自然科学基金（51708544）资助.

Fenton-like oxidative degradation of bisphenol A by mesoporous Cu-Al2O3 nanofibers

  • 1. School of Civil and Transportation, Hebei University of Technology, Tianjin, 300401, China;

  • 2. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China;

  • 3. Tianjin Zhongyi Aritecture and Planning Design Co., Ltd., Tianjin, 300193, China;

  • 4. Beijing Capital Co., Ltd., Beijing, 100028, China

    • Corresponding author: ZHAO Xu, tel:13693262989
  • Fund Project: Supported by the National Natural Science Foundation of China (51708544).

  • 摘要: 采用静电纺丝法制备了介孔Cu-Al2O3纳米纤维类芬顿催化剂，研究了其活化H2O2类芬顿氧化降解双酚A的过程与机制.通过在氧化铝纺丝前驱体中加入CuSO4，经静电纺丝及高温煅烧后制备了铜掺杂的介孔氧化铝纤维.通过SEM、BET、XRD和UV-vis DRS等方法表征可知：Cu-Al2O3纳米纤维直径约300 nm，具有介孔结构，比表面积为133.32 m2·g-1，物相为γ-Al2O3.实验探讨了H2O2添加量、催化剂投加量以及初始pH值等条件对双酚A（bisphenol A，BPA）降解过程的影响.实验表明：催化剂的最佳投加量为1.0 g·L-1，H2O2最佳添加量为24 mmol·L-1，反应最适宜pH值为中性，在最优的条件下1 h内对BPA（初始浓度20 mg·L-1）去除率可达到94.84%.通过电子自旋共振波谱分析以及自由基淬灭实验表明，该催化体系中产生的活性自由基分别为·OH、O2·-和1O2.
    Abstract: Mesoporous Cu-Al2O3 nanofibers were prepared by electrospinning and its Fenton-like catalytic performance for the oxidative degradation of bisphenol A in the presence of H2O2 was studied. By adding CuSO4 into the alumina precursor, and followed by electrostrospinning and calcination, mesoporous Cu-Al2O3 nanofibers were fabricated. The prepared mesoporous Cu-Al2O3 nanofibers were characterized by SEM, BET, XRD and UV-vis DRS, which indicated that Cu-Al2O3 nanofibers possessed a diameter of about 300 nm, a mesoporous structure, a specific surface area of 133.32 m2·g-1, and a phase of γ-Al2O3. The effects of H2O2 addition, catalyst addition and initial pH value on the degradation of bisphenol A were investigated. The experiments showed that the optimal addition amount of catalyst was 1.0 g·L-1, the optimal addition amount of H2O2 was 24 mmol·L-1, the optimal pH condition of the reaction was neutral, and the removal efficiency of BPA (initial concentration of 20 mg·L-1) within one hour under the optimal conditions could reach 94.84%. The electron spin resonance spectra analysis and free radical quenching experiments showed that the active radicals produced in the catalytic system were·OH, O2·- and 1O2.
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  • 收稿日期:  2019-07-17
惠劭华, 李一兵, 王雁, 呼瑞琪, 李霞, 刘思琦, 朱海洋, 赵旭. 介孔Cu-Al2O3纳米纤维类芬顿氧化降解双酚A[J]. 环境化学, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
引用本文: 惠劭华, 李一兵, 王雁, 呼瑞琪, 李霞, 刘思琦, 朱海洋, 赵旭. 介孔Cu-Al2O3纳米纤维类芬顿氧化降解双酚A[J]. 环境化学, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
shu
HUI Shaohua, LI Yibing, WANG Yan, HU Ruiqi, LI Xia, LIU Siqi, ZHU Haiyang, ZHAO Xu. Fenton-like oxidative degradation of bisphenol A by mesoporous Cu-Al2O3 nanofibers[J]. Environmental Chemistry, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
Citation: HUI Shaohua, LI Yibing, WANG Yan, HU Ruiqi, LI Xia, LIU Siqi, ZHU Haiyang, ZHAO Xu. Fenton-like oxidative degradation of bisphenol A by mesoporous Cu-Al2O3 nanofibers[J]. Environmental Chemistry, 2020, (10): 2858-2868. doi: 10.7524/j.issn.0254-6108.2019071703
shu

介孔Cu-Al2O3纳米纤维类芬顿氧化降解双酚A

    通讯作者: 赵旭, E-mail: tel:13693262989
  • 1. 河北工业大学土木与交通学院, 天津, 300401;
  • 2. 中国科学院生态环境研究中心, 环境水质学实验室, 北京, 100085;
  • 3. 天津中怡建筑规划设计有限公司, 天津, 300193;
  • 4. 北京首创股份有限公司, 北京, 100028
  • 收稿日期:  2019-07-17
基金项目:

国家自然科学基金（51708544）资助.

摘要: 采用静电纺丝法制备了介孔Cu-Al2O3纳米纤维类芬顿催化剂，研究了其活化H2O2类芬顿氧化降解双酚A的过程与机制.通过在氧化铝纺丝前驱体中加入CuSO4，经静电纺丝及高温煅烧后制备了铜掺杂的介孔氧化铝纤维.通过SEM、BET、XRD和UV-vis DRS等方法表征可知：Cu-Al2O3纳米纤维直径约300 nm，具有介孔结构，比表面积为133.32 m2·g-1，物相为γ-Al2O3.实验探讨了H2O2添加量、催化剂投加量以及初始pH值等条件对双酚A（bisphenol A，BPA）降解过程的影响.实验表明：催化剂的最佳投加量为1.0 g·L-1，H2O2最佳添加量为24 mmol·L-1，反应最适宜pH值为中性，在最优的条件下1 h内对BPA（初始浓度20 mg·L-1）去除率可达到94.84%.通过电子自旋共振波谱分析以及自由基淬灭实验表明，该催化体系中产生的活性自由基分别为·OH、O2·-和1O2.

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