CAJ | 학술논문

以天然柚子皮为原料，经干燥后制备了天然可降解吸附材料；应用差热-热重分析了其稳定性，采用X射线衍射分析和扫描电子显微镜对其物相、形貌和微结构特征进行了表征；并用红外光谱分析对其表面特性进行了测试。分析结果表明，热处理过程中柚子皮有四个主要变化过程：吸附水脱附、结晶水脱附、预碳化和碳化与灰化；柚子皮含有丰富的纤维素，内部具有良好的多孔层状结构，且随着热处理温度的升高，纤维素逐渐被分解，多孔层状结构被破坏。以甲苯、甲醛和丙酮等有机物为吸附对象，测试了天然柚子皮吸附材料的吸附性能。结果表明，80℃时干燥后，柚子皮吸附材料对有机污染物的吸附效果最佳。这与柚子皮的吸附水和结晶水的脱除和多孔层状结构保持良好有关。
이천연유자피위원료，경간조후제비료천연가강해흡부재료；응용차열-열중분석료기은정성，채용X사선연사분석화소묘전자현미경대기물상、형모화미결구특정진행료표정；병용홍외광보분석대기표면특성진행료측시。분석결과표명，열처리과정중유자피유사개주요변화과정：흡부수탈부、결정수탈부、예탄화화탄화여회화；유자피함유봉부적섬유소，내부구유량호적다공층상결구，차수착열처리온도적승고，섬유소축점피분해，다공층상결구피파배。이갑분、갑철화병동등유궤물위흡부대상，측시료천연유자피흡부재료적흡부성능。결과표명，80℃시간조후，유자피흡부재료대유궤오염물적흡부효과최가。저여유자피적흡부수화결정수적탈제화다공층상결구보지량호유관。
Natural degradable adsorptive material was prepared using citron peel as raw material. The stability of the sample was analyzed by thermal gravity and differential thermal analysis (TG-DTA), and the crystal phase, morphology and microstructure of the samples were characterized by X-ray diffraction analysis and scanning electron microscope, and the surface property of the sample was characterized by infrared absorption spectrum. The results showed that the evolution of the sample exhibited four stages: desorption of adsorptive water, desorption of crystal water, pre-carbonization, carbonization and ashing. Citron peel contains rich cellulose with porous layered structure, and as the prepared temperature increasing, the degradation of the cellulose happens, and so does the porous layered structure. The adsorptive ability of the samples was tested using toluene, formaldehyde and acetone as target organic contaminant. The results showed that the adsorptive ability for organic contaminant of the sample processed at 80 ℃was the best. This can be attributed to desorption of adsorptive water and crystal water, and completeness of the porous layered structure of the cellulose.