CAJ | 학술논문

以低压紫外汞灯为光源,纳米材料为光催化剂,探讨不同类型纳米粉体对水溶液中分散染料的光催化脱色特性.结果表明,N掺杂TiO_2纳米光催化剂和TiO_2酸性分散液的光催化脱色效果较佳;溶液pH值、催化剂用量、光催化时间对分散染料溶液的脱色率有较大的影响;H_2O_2、Al~(3+)和Fe~(2+)的加入,有助于提高光催化脱色率;杂环、杂环偶氮类和偶氮苯类结构的分散染料均比蒽醌类容易被光催化降解脱色,染料中所含的取代基对其光催化脱色性能有重要影响.
이저압자외홍등위광원,납미재료위광최화제,탐토불동류형납미분체대수용액중분산염료적광최화탈색특성.결과표명,N참잡TiO_2납미광최화제화TiO_2산성분산액적광최화탈색효과교가;용액pH치、최화제용량、광최화시간대분산염료용액적탈색솔유교대적영향;H_2O_2、Al~(3+)화Fe~(2+)적가입,유조우제고광최화탈색솔;잡배、잡배우담류화우담분류결구적분산염료균비은곤류용역피광최화강해탈색,염료중소함적취대기대기광최화탈색성능유중요영향.
Taking ultraviolet low pressure mercury lamp as a light source and nano materials as photocatalysts,photocatalytic decolorization characteristics of disperse dyes in aqueous solution with different nano particles were-studied.Results showed that photocatalytic decolorization effects of N-dopped nano-TiO_2 photocatalyst and commercial acidic TiO_2 dispersion were better than the others.Dosage of photocatalyst,pH value,photocatalytic time exerted obvious influences on decolorization rate.It would enhance dye decolorization rate with addition of H_2O_2,Al~(3+) and Fe~(2+).Disperse dyes with heterocyclic,heterocyclic diazo and azobenzol structure were easier to be decolorized than anthraquinone ones.Substituting groups in disperse dyes had a significant impact on photocatalytic decolorization.