光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2014年
4期
962-966
,共5页
郑庆福%王永和%孙月光%牛鹤鹤%周佳儒%王志民%赵吉
鄭慶福%王永和%孫月光%牛鶴鶴%週佳儒%王誌民%趙吉
정경복%왕영화%손월광%우학학%주가유%왕지민%조길
FTIR%生物炭%生物物料%制备方式%炭化温度
FTIR%生物炭%生物物料%製備方式%炭化溫度
FTIR%생물탄%생물물료%제비방식%탄화온도
FTIR%Biochar%Biological materials%Preparation methods%Carbonization temperature
红外光谱是了解生物炭结构性质特征的重要手段。通过采用傅里叶红外光谱技术(FTIR)对不同物料和制备方式的生物炭结构性质特征进行表征。结果表明:不同的物料制备的生物炭均具有羟基、芳香基及一些含氧基团的吸收峰,与活性碳有共同特征;但其他吸收峰,有着显著差异。高温炭化可以使玉米秸秆中-OH,-CH3,-CH2-,CO间发生缔合或消除,促进了芳香基团的形成。在不同炭化方式下,加热和微波炭化,对生物炭形成有着机理上差别,加热炭化可致使醇、酚中的-OH彼此结合或者消除,形成苯环类基团,而微波法能使得芳香基团钝化阻止其参与反应,使得苯环类物质得以更多形成。综上表明,红外光谱可较好反映生物炭的结构特征,揭示了生物炭主要含有-OH、芳香基团等活性基团。
紅外光譜是瞭解生物炭結構性質特徵的重要手段。通過採用傅裏葉紅外光譜技術(FTIR)對不同物料和製備方式的生物炭結構性質特徵進行錶徵。結果錶明:不同的物料製備的生物炭均具有羥基、芳香基及一些含氧基糰的吸收峰,與活性碳有共同特徵;但其他吸收峰,有著顯著差異。高溫炭化可以使玉米秸稈中-OH,-CH3,-CH2-,CO間髮生締閤或消除,促進瞭芳香基糰的形成。在不同炭化方式下,加熱和微波炭化,對生物炭形成有著機理上差彆,加熱炭化可緻使醇、酚中的-OH彼此結閤或者消除,形成苯環類基糰,而微波法能使得芳香基糰鈍化阻止其參與反應,使得苯環類物質得以更多形成。綜上錶明,紅外光譜可較好反映生物炭的結構特徵,揭示瞭生物炭主要含有-OH、芳香基糰等活性基糰。
홍외광보시료해생물탄결구성질특정적중요수단。통과채용부리협홍외광보기술(FTIR)대불동물료화제비방식적생물탄결구성질특정진행표정。결과표명:불동적물료제비적생물탄균구유간기、방향기급일사함양기단적흡수봉,여활성탄유공동특정;단기타흡수봉,유착현저차이。고온탄화가이사옥미갈간중-OH,-CH3,-CH2-,CO간발생체합혹소제,촉진료방향기단적형성。재불동탄화방식하,가열화미파탄화,대생물탄형성유착궤리상차별,가열탄화가치사순、분중적-OH피차결합혹자소제,형성분배류기단,이미파법능사득방향기단둔화조지기삼여반응,사득분배류물질득이경다형성。종상표명,홍외광보가교호반영생물탄적결구특정,게시료생물탄주요함유-OH、방향기단등활성기단。
Infrared spectroscopy (IR) is an important means of seeing the characteristics of the structural properties .Fourier transform infrared spectroscopy (FTIR ) was applied to analyze the structural properties of biochar from different materials with different methods .The results showed that :the biochars have IR absorption peaks of hydroxyls group ,aromatic group and con-taining organic group with the activated?charcoal ,but in other absorption peaks ,with a significant difference .The high tem-perature can make -OH ,-CH3 ,-CH2 - ,CO to be associated or loss ,and promotes the formation of aromatic groups during Carbonization of corn straw .At the different carbonization mode ,the heating and microwave carbonization ,has a carbon-ize mechanism of biochar ,heating method may make -OH in alcohol and phenol to combinative with each other or loss ,and to form benzene ring group and an aromatic group ,Aromatic group in microwave method was so preventing to participate in the hot reaction ,to form the more benzene substances .These results show that the Infrared spectrum can well analysis the structural characteristics of biochar ,and showed that it comprises -OH ,the aromatic group and other active groups .