环境工程学报2025，Vol.19Issue(1)：178-187,10.DOI:10.12030/j.cjee.202409102
AuPt/还原氧化石墨烯/氮化碳的制备及其在室内挥发性有机物处理中的应用
Preparation of nano-Au alloy/reduced graphene oxide/g-C3N4 composites and their application in indoor volatile organic compound treatment
摘要
Abstract
Photocatalytic technology is expected to become an ideal pollution control technology for solving air pollution due to its direct utilization of solar energy,mild reaction conditions,no secondary pollution,and ability to degrade almost all organic pollutants.On the basis of synthesizing g-C3N4 nanosheets,reduced graphene oxide(rGO)and AuPt bimetallic nanoparticles were respectively combined with g-C3N4 to fabricate AuPt/rGO/g-C3N4 photocatalytic composite.The crystal structure,morphology,electronic structure,optical and interface properties of AuPt/G/g-C3N4 were analyzed by techniques such as XRD,Raman,TEM,XPS,DRS,PL and electrochemical testing.The formaldehyde degradation performance by AuPt/rGO/g-C3N4 was assessed under full spectra or visible light conditions.The results indicated that AuPt/rGO/g-C3N4 exhibited excellent photocatalytic performance and stability,mainly due to its expanded visible light absorption capacity,effective separation of photogenerated carriers,and extended lifetime of photogenerated carriers.Under full spectra and visible light irradiation,the degradation rates of formaldehyde over AuPt/rGO/g-C3N4 were 96％(90 min)and 97％(150 min),respectively.The conversion rates of CO2 were 82％and 77％,respectively.The corresponding apparent first-order reaction rate constants for formaldehyde degradation were 0.035 5 and 0.023 2 min-1,which were 12.5 and 15.5 times that of g-C3N4,respectively.关键词
光催化/甲醛/氮化碳/还原氧化石墨烯/双金属纳米颗粒Key words
photocatalysis/formaldehyde/carbon nitrate/rGO/bimetallic nanoparticles分类
资源环境引用本文复制引用
陈楚晓,郝京华..AuPt/还原氧化石墨烯/氮化碳的制备及其在室内挥发性有机物处理中的应用[J].环境工程学报,2025,19(1):178-187,10.基金项目
河北工业职业技术大学创新方法研究专项(cx202201) （cx202201）
