广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2011年
10期
15-16
,共2页
水滑石%焙烧%亚甲基蓝%催化
水滑石%焙燒%亞甲基藍%催化
수활석%배소%아갑기람%최화
hydrotalcite%calcine%methylene blue%catalysis
采用共沉淀法合成了CoAl水滑石,用XRD、TG-DTA、IR表征了结构,以其焙烧产物为催化剂,用于催化H2O2氧化分解亚甲基蓝。结果表明,催化剂用量为1.15 g/L、H2O2质量分数为3.0%、亚甲基蓝初始质量浓度为20 mg/L、反应时间3 h时,亚甲基蓝平均脱色率可达到92.57%。
採用共沉澱法閤成瞭CoAl水滑石,用XRD、TG-DTA、IR錶徵瞭結構,以其焙燒產物為催化劑,用于催化H2O2氧化分解亞甲基藍。結果錶明,催化劑用量為1.15 g/L、H2O2質量分數為3.0%、亞甲基藍初始質量濃度為20 mg/L、反應時間3 h時,亞甲基藍平均脫色率可達到92.57%。
채용공침정법합성료CoAl수활석,용XRD、TG-DTA、IR표정료결구,이기배소산물위최화제,용우최화H2O2양화분해아갑기람。결과표명,최화제용량위1.15 g/L、H2O2질량분수위3.0%、아갑기람초시질량농도위20 mg/L、반응시간3 h시,아갑기람평균탈색솔가체도92.57%。
The CoAl hydrotalcite was synthesized by coprecipitation method and characterized by XRD and TG-DTA and IR,and then transformed into compound oxide by calcination.The obtained compound oxide was used as catalyst for the decomposition of methylene blue solution by H2O2.The results showed that the average decoloration of methylene blue solution reached 92.57 % under the optimum conditions as follows： catalyst dosage was 1.15 g/L,H2O2 concentration was 3.0 %,initial concentration of methylene blue was 20 mg/L,and reaction time was 3 h.
