CAJ | 학술논문

以葡萄糖为模板、聚乙二醇(PEG-4000)为分散剂通过一步水热法所得前驱体，经600℃焙烧4 h 得到CuO/Al2O3光催化剂，并对样品进行 XRD、SEM、TEM、BET、TG/DTA和 XPS 等表征分析。在模拟太阳光照射下，以甲基橙溶液的光催化降解考察样品的光催化活性，研究焙烧温度、添加PEG-4000对样品光催化活性的影响。结果表明：PEG-4000的添加对产物的晶相和比表面积有一定影响；当焙烧温度600℃，加入10%PEG-4000到前驱体CuO/Al2O3中时，光催化活性最佳；光照60 min后，0.5 g/L光催化剂用量对甲基橙的脱色率达96.7％，与未加PEG-4000的样品比较，相同条件下对甲基橙的脱色率提高6.5%。
이포도당위모판、취을이순(PEG-4000)위분산제통과일보수열법소득전구체，경600℃배소4 h 득도CuO/Al2O3광최화제，병대양품진행 XRD、SEM、TEM、BET、TG/DTA화 XPS 등표정분석。재모의태양광조사하，이갑기등용액적광최화강해고찰양품적광최화활성，연구배소온도、첨가PEG-4000대양품광최화활성적영향。결과표명：PEG-4000적첨가대산물적정상화비표면적유일정영향；당배소온도600℃，가입10%PEG-4000도전구체CuO/Al2O3중시，광최화활성최가；광조60 min후，0.5 g/L광최화제용량대갑기등적탈색솔체96.7％，여미가PEG-4000적양품비교，상동조건하대갑기등적탈색솔제고6.5%。
CuO/Al2O3 photocatalysts were prepared via one-pot hydrothermal process using glucose as template and polyethylene glycol (PEG-4000) as dispersion agent after calcination at 600℃for 4 h. The as-prepared samples were characterized by XRD, SEM, TEM, BET, TG/DTA and XPS. The effect of PEG-4000 on crystallite phase and BET was observed. The photocatalytic activities of the as-obtained samples were evaluated by the degradation of methyl orange (MO) solution under simulated sunlight irradiation. The effects of calcination temperature and addition of PEG-4000 on the photocatalytic activity were investigated. The results show that the highest photocatalytic degradation efficiency is observed when adding 10% (mass fraction) PEG-4000 into CuO/Al2O3 in the starting materials and calcination temperature of 600℃. The maximum photocatalytic decoloration rate of MO is 96.7% within 60 min at photocatalyst concentration of 0.5 g/L, which increases by 6.5% compared to that of the sample without PEG-4000 under the same conditions.