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改性天然血红素制备仿酶催化剂及其光催化降解对苯二酚

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吴景悦, 李乃瑄. 改性天然血红素制备仿酶催化剂及其光催化降解对苯二酚[J]. 环境化学, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
引用本文: 吴景悦, 李乃瑄. 改性天然血红素制备仿酶催化剂及其光催化降解对苯二酚[J]. 环境化学, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
shu
WU Jingyue, LI Naixuan. Preparation of imitation enzyme catalyst by modified natural hemin and its application in the degradation of hydroquinone[J]. Environmental Chemistry, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
Citation: WU Jingyue, LI Naixuan. Preparation of imitation enzyme catalyst by modified natural hemin and its application in the degradation of hydroquinone[J]. Environmental Chemistry, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
shu

改性天然血红素制备仿酶催化剂及其光催化降解对苯二酚

  • 1.

    天津理工大学化学化工学院, 天津, 300384

  • 基金项目:

    天津市应用基础及前沿技术研究计划(11JCZDJC24400)资助。

Preparation of imitation enzyme catalyst by modified natural hemin and its application in the degradation of hydroquinone

  • 1.

    School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, China

  • Fund Project:

  • 摘要: 以天然氯化血红素为原料，经过脱铁酯化、水解及络合锌离子，合成了锌卟啉配合物，以三聚氯氰为桥联剂将其负载于羟基功能化的纤维素磁微球载体表面，制成负载型锌卟啉仿酶催化剂.通过紫外-可见(UV-Vis)分光光度计、电感耦合等离子体发射光谱仪(ICP-OES)、傅里叶变换红外光谱仪(FT-IR)、透射电子显微镜(TEM)、热重分析仪(TGA)和振动样品磁强计(VSM)对催化剂进行表征.考察了不同条件该催化剂对对苯二酚(HQ)光催化降解作用的影响.结果表明，在模拟太阳光照射下，当催化剂用量20 mg、HQ初始浓度20 mg·L-1及pH值为6.5的条件下，6 h后HQ的降解率达到95.52%，催化剂重复使用10次后，降解率仍可达86%以上.
    Abstract: Choosing the natural Hemin as raw materials, through iron removal esterification, hydrolysis and complexation of zinc ions, the protoporphyrinato zinc was synthesiced. Then it was loaded on the hydroxyl function of cellulose magnetic microspheres carrier surface bridged with cyan uric chloride and the supported protoporphyrinato zinc imitation enzyme catalysts was synthesiced. The catalyst was characterized by UV-visible (UV-Vis) spectrophotometer, inductively coupled plasma atomic emission spectroscopy (ICP-OES), Fourier transform infrared spectrometer (FT-IR), transmission electron microscopy (TEM), thermo-gravimetric analysis (TGA) and vibrating sample magnetometer (VSM). The catalyst photocatalytic degradation of hydroquinone (HQ) under different conditions was investigated. The results showed that under simulated sunlight irradiation 6 h, the catalyst dosage was 20 mg, the initial concentration of HQ was 20 mg · L-1 and pH was 6.5, HQ degradation rate reached 95.52%, and after reuse 10 times, the degradation rate of HQ was above 86%.
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  • 收稿日期:  2013-01-04
吴景悦, 李乃瑄. 改性天然血红素制备仿酶催化剂及其光催化降解对苯二酚[J]. 环境化学, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
引用本文: 吴景悦, 李乃瑄. 改性天然血红素制备仿酶催化剂及其光催化降解对苯二酚[J]. 环境化学, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
shu
WU Jingyue, LI Naixuan. Preparation of imitation enzyme catalyst by modified natural hemin and its application in the degradation of hydroquinone[J]. Environmental Chemistry, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
Citation: WU Jingyue, LI Naixuan. Preparation of imitation enzyme catalyst by modified natural hemin and its application in the degradation of hydroquinone[J]. Environmental Chemistry, 2013, 32(11): 2142-2148. doi: 10.7524/j.issn.0254-6108.2013.11.018
shu

改性天然血红素制备仿酶催化剂及其光催化降解对苯二酚

  • 1. 天津理工大学化学化工学院, 天津, 300384
  • 收稿日期:  2013-01-04
基金项目:

天津市应用基础及前沿技术研究计划(11JCZDJC24400)资助。

摘要: 以天然氯化血红素为原料，经过脱铁酯化、水解及络合锌离子，合成了锌卟啉配合物，以三聚氯氰为桥联剂将其负载于羟基功能化的纤维素磁微球载体表面，制成负载型锌卟啉仿酶催化剂.通过紫外-可见(UV-Vis)分光光度计、电感耦合等离子体发射光谱仪(ICP-OES)、傅里叶变换红外光谱仪(FT-IR)、透射电子显微镜(TEM)、热重分析仪(TGA)和振动样品磁强计(VSM)对催化剂进行表征.考察了不同条件该催化剂对对苯二酚(HQ)光催化降解作用的影响.结果表明，在模拟太阳光照射下，当催化剂用量20 mg、HQ初始浓度20 mg·L-1及pH值为6.5的条件下，6 h后HQ的降解率达到95.52%，催化剂重复使用10次后，降解率仍可达86%以上.

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