CAJ | 학술논문

采用硅酸钠为硅源，以十六烷基三甲基溴化铵作为模板剂，四甲基氢氧化铵为矿化剂，用盐酸调节pH值，在75 ℃的温和水热条件下，合成了Fe-MCM-41中孔分子筛。产品经粉末X衍射、 N2吸附/脱附、红外光谱分析等手段进行了表征。结果表明，在实验条件下经16 h晶化，产品有较满意的结晶度和介孔分子筛的结构特征。用H2O2为氧化剂，合成的Fe-MCM-41作为催化剂，详细考察了溶剂、反应时间、催化剂用量等条件对苯的羟基化反应的影响。反应产物用气相色谱检测，结果表明，Fe-MCM-41能有效催化苯的羟基化反应，且苯酚为唯一产品。
채용규산납위규원，이십륙완기삼갑기추화안작위모판제，사갑기경양화안위광화제，용염 산조절pH치，재75 ℃적온화수열조건하，합성료Fe-MCM-41중공분자사。산품경분말X연사 、 N2흡부/탈부、홍외광보분석등수단진행료표정。결과표명，재실험조건하경16 h정화， 산품 유교만의적결정도화개공분자사적결구특정。용H2O2위양화제，합성적Fe-MCM-41작 위최 화제，상세고찰료용제、반응시간、최화제용량등조건대분적간기화반응적영향。반응산물 용기상색보검측，결과표명，Fe-MCM-41능유효최화분적간기화반응，차분분위유일산품。
Sodium silicate was used as the silica sour ce, CTMABr and TMAOH w ere used as template and mineralizer respectively. The pH value of the mixture w as adjusted with HCl(12 mol*L-1) Fe-MCM-41 were successfully synthesized in mild hydrothermal system at 75　℃ for 16 h. The product was characterized by p owde r X-ray diffraction (XRD), N2 adsorption/desorption and FTIR. XRD, N2 adsor ptio n and FTIR show that the solid sample has an excellent crystalline structure and a typical mesopores characterization.Fe-MCM-41 was used as the heterogeneous catalyst for the oxidation of benze ne b y using H2O2 as the oxidant.The influences of solvent ,reaction time and cat alys t content were investigated. The liquid product was analyzed by a gas chromatogr aph. The result show that Fe-MCM-41 can efficiently catalyze the oxidation of benzene, and phenol is the only product of liquid phase.