活性炭负载金纳米颗粒复合材料的制备及吸附性能研究  

Preparation and absorptive properties of activated carbon loaded with gold nanoparticles

作　　者：郑婵 李巍[1,2] 李玉冰 ZHENG Chan;LI Wei;LI Yubing(School of Materials Science and Engineering,Fujian University of Technology,Fuzhou 350118,China;Institute of Material Surface Technology,Fujian University of Technology,Fuzhou 350118,China)

机构地区：[1]福建工程学院材料科学与工程学院,福建福州350118 [2]福建工程学院材料表面技术研究所,福建福州350118

出　　处：《福建工程学院学报》2018年第3期205-209,共5页Journal of Fujian University of Technology

基　　金：福建省高校产学合作科技重大专项(2015N007)

摘　　要：通过改变反先驱体中氯金酸含量,用水热法实现不同数量金纳米颗粒在活性炭表面的负载。采用透射电子显微镜(TEM)、红外光谱分析仪(IR)、同步热分析仪(TG)、比表面及孔径分析仪以及紫外可见吸收光谱(UV/Vis)对所得材料的形貌、组成和结构进行表征,并对其吸附性能进行研究。结果表明:采用水热法可实现不同数量金纳米颗粒在活性炭表面的均匀负载。负载金纳米颗粒在对活性炭组成影响不大的情况下能有效提升活性炭的热稳定性。随着负载量的增加,金纳米颗粒附着在活性炭的孔洞上引起比表面积和孔隙率逐渐减小。将活性炭负载金纳米颗粒的复合物对苯酚进行吸附处理,通过调整负载金纳米颗粒的数量可对活性炭吸附性能进行有效调控。Different amounts of gold nanoparticles can be loaded onto the surface of activated carbon by changing the concentration of chlorauric acid in the reaction reagent using the hydrothermal method. The morphology, composition, structure and absorptive properties of the resulted materials were characterized by transmission electron microscopy（ TEM）,infrared spectroscopy（ IR）,thermal analyzer（ TG）,specific surface area measurement instrument（ BET） and ultraviolet visible absorption spectroscopy（ UV-Vis）. The gold nanoparticles can be homogenously deposited onto the surface of activated carbon with the hydrothermal method,and the introduction of gold nanoparticles has little influence on the composition of activated carbon while significantly improving the thermal stability of original activated carbon. With an increasing amount of gold nanoparticles anchoring on the activated carbon,the BET specific surface area and porosity decrease gradually with more particles deposited onto the pores. When the activated carbon loaded with gold nanoparticles was used for phenol absorption,the absorptive property of activated carbon can be controlled by adjusting the amount of gold nanoparticles loaded.

关 键 词：金纳米粒子 活性炭 水热法 比表面积 吸附性 

分 类 号：X703[环境科学与工程—环境工程]