摘要
Over the years,the devastating impact of climate change has become pronounced due to inadequate regulation for waste disposal in a developing country like Nigeria.The chicken feather-based metal oxide-rich(MOR)biochar was produced using a top-lit updraft reactor at a peak temperature of 417.2℃to give a yield of 28.19%.The results were analyzed using Brunauer-Emmett-Teller BET,Scanning Electron Microscopy(SEM),Fourier Transform Infrared Spectroscopy(FTIR),X-ray diffraction(XRD),Energy Dispersive Spectroscopy(EDS),and X-ray fluorescence spectroscopy(XRF).The result shows that the sample is mesoporous(pore diameter of 2.132 nm)with a BET surface area of 105.7 m^(2)/g.CaO(33.147 wt%)and SO_(3)(25.673 wt%)were the major oxides present in notable proportions on the material surface,which were evident in the SEM micrograph.The major elemental compositions of the raw sample were oxygen(36.917 wt%)and calcium(23.690 wt%),and the major minerals present were quartz,marialite,davyne,and graphite.The present study elucidates the successful and efficient material recovery route for the preparation of adsorbents and precursors for many product synthesis processes.
多年来,气候变化引起的不利影响愈加明显,部分原因是发展中国家如尼日利亚等对废弃物处置的监管不到位。本文使用顶燃式上升气流反应器在417.2℃下煅烧鸡毛生成富含金属氧化物(MOR)的生物炭,产率为28.19%。通过采用Brunauer-Emmett-Teller(BET)、扫描电子显微镜(SEM)、傅里叶变换红外光谱(FTIR)、X射线衍射(XRD)、能量色散光谱(EDS)和X射线荧光光谱(XRF)进行试验表征。结果表明试样拥有介孔微结构(孔径为2.132nm),BET比表面积为105.7m^(2)/g。扫描电子显微镜图像清晰表明CaO(质量占比33.147%)和SO_(3)(质量占比25.673%)是材料表面的主要氧化物。原始样品的主要元素是氧(质量占比36.917%)和钙(质量占比23.690%),主要矿物是石英、海钠石、石墨等。本文阐明了这是成功制备吸附剂和前驱体材料的有效回收路径。
