The surface chemistry of anion - exchange fiber synthesized from natural cotton was also studied , in order to further understand the effect of surface functional groups of ion - exchange fibers on their adsorptive and exchange properties 還對天然棉纖維基離于交換纖維的表面化學進行了研究,以探討離子交換纖維的表面官能團對吸附交換性能的影響。
First , it is associated with the prepared conditions of spectral pure graphite electrode ; second , compared with the untreated graphite , the surface functional groups of ? oh and ? cooh on the treated one increased dramatically with hot concentrated h2so4 and the impurities on electrode surface decreased significantly with ultrasonic rinse . a sequence reaction mechanism was proposed for the eis of mn ( ) / mn ( ) on different graphite electrodes . the spectral graphite and the treated one can be suitable for the inert electrode of mn ( ) / mn ( ) cathode 分析原因認為:一方面與光譜純石墨電極的制備條件有關;另一方面,與未處理石墨電極相比,處理石墨表面含氧官能團? oh 、 ? cooh明顯增多,而且超聲清洗又使其表面雜質含量減少,并提出了一個反應機理解釋mn ( iii ) / mn ( ii )電對在三種石墨電極上阻抗譜的不同,說明光譜純石墨和處理石墨均可以作為mn ( iii ) / mn ( ii )正極電對的惰性工作電極。