应用化学
應用化學
응용화학
CHINESE JOURNAL OF APPLIED CHEMISTRY
2010年
4期
437-440
,共4页
TiO_2负载%Co~(2+)、Cu~(2+)离子催化剂%催化氧化%对甲酚氧化%对羟基苯甲醛
TiO_2負載%Co~(2+)、Cu~(2+)離子催化劑%催化氧化%對甲酚氧化%對羥基苯甲醛
TiO_2부재%Co~(2+)、Cu~(2+)리자최화제%최화양화%대갑분양화%대간기분갑철
supported on TiO_2%catalyst of Co~(2+) and Cu~(2+)%catalytic oxidation%oxidation of p-cresol%p-hydroxybenzaldehyde
用浸渍法制备了一系列以TiO_2为载体的负载型催化剂,利用 XRD和IR分析测试技术研究了负载Co~(2+)与Cu~(2+)后催化剂的表面结构,催化剂用于对甲酚氧化制备对羟基苯甲醛的反应中.结果表明,n(Co~(2+)): n(Cu~(2+))=1: 0.5时,催化剂的催化效果最佳.在反应优化条件下,对甲酚的转化率可达100%,对羟基苯甲醛的选择性达95.2%.
用浸漬法製備瞭一繫列以TiO_2為載體的負載型催化劑,利用 XRD和IR分析測試技術研究瞭負載Co~(2+)與Cu~(2+)後催化劑的錶麵結構,催化劑用于對甲酚氧化製備對羥基苯甲醛的反應中.結果錶明,n(Co~(2+)): n(Cu~(2+))=1: 0.5時,催化劑的催化效果最佳.在反應優化條件下,對甲酚的轉化率可達100%,對羥基苯甲醛的選擇性達95.2%.
용침지법제비료일계렬이TiO_2위재체적부재형최화제,이용 XRD화IR분석측시기술연구료부재Co~(2+)여Cu~(2+)후최화제적표면결구,최화제용우대갑분양화제비대간기분갑철적반응중.결과표명,n(Co~(2+)): n(Cu~(2+))=1: 0.5시,최화제적최화효과최가.재반응우화조건하,대갑분적전화솔가체100%,대간기분갑철적선택성체95.2%.
A series of supported catalysts was prepared by wetness impregnation method with TiO_2 as substrate. The surface structures of the catalysts were characterized by XRD and IR. The catalysts prepared were used in the oxidation of p-cresol to p-hydroxybenzaldehyde. The results show that when the molar ratio of cobalt ions and copper ions was 1: 0.5, the catalyst had the best catalytic effect. Under optimized reaction conditions, the conversion of p-cresol was nearly 100%, the selectivity of p-hydroxybenzaldehyde was 95.2%.
