Ag@ZF-(TA-APTES)-Fe^(3+)生物质基复合催化材料的制备及其催化性能  

Preparation of Biomass-based Composite Catalytic Material Ag@ZF-(TA-APTES)-Fe~(3+) and Its Catalytic Reduction

作　　者：翟利芳[1,2] 卢媛[2] 崔玉晓 王雁南[2] 鲁金凤[1,2] 张贺 ZHAI Lifang;LU Yuan;CUI Yuxiao;WANG Yannan;LU Jinfeng;ZHANG He(Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution,Nankai University,Tianjin 300350,China;College of Environmental Science and Engineering,Nankai University,Tianjin 300350,China)

机构地区：[1]南开大学天津市跨介质复合污染环境治理技术重点实验室,天津300350 [2]南开大学环境科学与工程学院,天津300350

出　　处：《实验室研究与探索》2023年第5期15-19,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(22076082);天津市教学成果奖培育项目(PYGJ-20);2021年南开大学"四新"专业课程改革项目(21NKSYSX06);2021年南开大学自制仪器项目(21NKZZYQ13)。

摘　　要：为了有效去除废水中的4-硝基苯酚,在生物质材料竹粉上通过TA/Fe^(3+)原位合成一种新型的银纳米颗粒复合催化材料,采用SEM、XPS、XRD和BET对复合催化材料进行表征,并测试其对4-硝基苯酚的催化还原性能。结果表明:复合催化材料对4-硝基苯酚的催化还原遵循一级反应动力学,随着银负载量、温度及催化剂投加量的增加,催化反应常数均有不同程度的增加;经过10次循环反应后,复合催化材料对4-硝基苯酚的去除率仍在96.5%以上,可见复合催化材料具有良好的稳定性,可多次重复利用。In order to remove 4-nitrophenol from wastewater effectively,a novel silver nanoparticle composite was synthesized via tannic/Fe~(3+) complexation by using biomass material bamboo powder.The composite catalytic material was characterized by SEM,XPS,XRD and BET.The catalytic reduction performance of 4-nitrophenol by composite catalytic material was tested.The results show that the catalytic reduction of 4-nitrophenol by the composite catalytic material follows the first-order reaction kinetics.The rate constant of catalytic reaction increases with the increase of silver loading,temperature and catalyst dosage.The removal rate of 4-nitrophenol by the composite catalytic material is above 96.5% after 10 cycles.It shows good stability and can be recycled and reused.

关 键 词：银纳米颗粒 单宁酸 4-硝基苯酚 

分 类 号：G642.0[文化科学—高等教育学] X703[文化科学—教育学]