CAJ | 학술논문

以原位沉淀-光化学还原法制备了Ag@AgCl/MCM-41复合纳米材料,采用SEM、IR、XRD对其结构进行了表征.分析表明,复合纳米材料中Ag@AgCl为壳-核结构,具有纳米金属表面等离子体共振效应,对可见光的吸收增强.介孔材料MCM-41载体的引入使催化剂分散性、比表面积、吸附性能和重复使用性提高.以亚甲基蓝为目标降解物,考察了其可见光催化活性,结果表明,光照射60min,复合纳米光催化材料对10mg/L亚甲基蓝溶液的降解率达98%.
이원위침정-광화학환원법제비료Ag@AgCl/MCM-41복합납미재료,채용SEM、IR、XRD대기결구진행료표정.분석표명,복합납미재료중Ag@AgCl위각-핵결구,구유납미금속표면등리자체공진효응,대가견광적흡수증강.개공재료MCM-41재체적인입사최화제분산성、비표면적、흡부성능화중복사용성제고.이아갑기람위목표강해물,고찰료기가견광최화활성,결과표명,광조사60min,복합납미광최화재료대10mg/L아갑기람용액적강해솔체98%.
Ag@AgCl core-shell composite-loaded mesoporous MCM-41 materials are synthesized by chemical precipitation and photochemical reduction method. The obtained samples are characterized by SEM, XRD and IR spectroscopy. Results show that the Ag@AgCl is the core-shell structure nanoparticles and has the nano-metal's surface plasma resonance effect, which can effectively improve the absorbation of visible light. Dispersing, specific surface areas, adsorption properties and repeatability performance are improved by the carrier. The photocatalytic properties of catalyst have been studied with methylene blue pollutant to be degraded under a visible light source. The results show that the degradation rate of methylene blue can be more than 98 %, at 10mg/L of the methylene blue concentration, under 60min of the visible light irradiation.