[1]刘强,沈健,姜成春,等.高活性类Fenton铜钴双金属催化剂的制备与性能研究[J].中国给水排水,2021,37(1):69-75.
　LIU Qiang,SHEN Jian,JIANG Cheng-chun,et al.Preparation of High Activity Fenton Copper-Cobalt Bimetallic Catalysts and Its Properties[J].China Water & Wastewater,2021,37(1):69-75.
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高活性类Fenton铜钴双金属催化剂的制备与性能研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第1期 页码: 69-75 栏目: 出版日期: 2021-01-01
Title:
Preparation of High Activity Fenton Copper-Cobalt Bimetallic Catalysts and Its Properties
作者:
刘强1，沈健1，姜成春2，李锦卫2，董紫君2
(1.沈阳建筑大学市政与环境工程学院，辽宁沈阳110168；2.深圳职业技术学院城市水良性循环工程研发中心，广东深圳518055)
Author(s):
LIU Qiang1,SHEN Jian1,JIANG Cheng-chun2,LI Jin-wei2,DONG Zi-jun2
(1. School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China; 2. Urban Water Benign Cycle Engineering Research and Development Center, Shenzhen Polytechnic, Shenzhen 518055, China)
关键词:
铜钴双金属氧化物; 纳米催化剂; 非均相Fenton体系; 硝基苯
Keywords:
copper-cobalt bimetallic oxide; nano catalyst; heterogeneous Fenton system; nitrobenzene
摘要:
采用水热合成法制备具有高催化活性的纳米铜钴双金属氧化物（NCCO），并采用扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线衍射仪（XRD）、X射线光电子能谱仪（XPS）、傅里叶变换红外光谱仪（FTIR）、比表面与孔隙度分析仪（BET）等方法对其进行表征。通过改变制备条件，研究了NCCO在不同的前驱物用量配比、水热时间、水热温度以及有无超声预处理、有无丙醛添加等条件下的合成情况，并以硝基苯（NB）的降解效果为评价指标，确定NCCO的最佳制备条件。结果表明，在前驱物用量配比Cu ∶Co为1 ∶1、水热时间为48 h、水热温度为200 ℃、超声预处理、添加丙醛的条件下，制得的NCCO具有最优的催化活性。此外，NCCO即使在连续使用4次后，45 min内对NB的降解率依然为100%，表明其具有优异的化学稳定性。
Abstract:
The nano copper-cobalt bimetallic oxide (NCCO) with high catalytic activity was prepared by hydrothermal synthesis method, and it was characterized by SEM, TEM, XRD, XPS, FTIR and BET methods. By changing the preparation conditions, the synthesis of NCCO under the conditions of different dosage ratio of precursor, hydrothermal time, hydrothermal temperature, presence or absence of ultrasonic pretreatment, and presence or absence of propionaldehyde addition were explored, and the degradation effect of nitrobenzene (NB) was used as evaluation index to determine the best preparation condition of NCCO. When the precursor dosage ratio Cu ∶Co was 1 ∶1, hydrothermal time was 48 h and hydrothermal temperature was 200 ℃ with ultrasonic pretreatment and the addition of propionaldehyde, the synthesized NCCO had the best catalytic activity. In addition, NB degradation efficiency was still 100% within 45 min even after using NCCO for four consecutive times, indicating that NCCO had excellent chemical stability.
更新日期/Last Update: 2021-01-01