CAJ | 학술논문

以分散态纳米TiO2为光催化剂，在鼓泡流化床光催化反应器中对活性翠兰 K-GL染料溶液进行光催化降解实验研究。通过改变光催化剂投入量、染料溶液的初始浓度和 Na2SO4与 NaCl 的掺加，探讨了影响光催化降解K-GL的因素，运用Langrmuir-Hinshelwood动力学方程对染料降解动力学规律进行了研究。结果表明，TiO2光催化降解活性翠兰K-GL的反应遵循准一级反应动力学方程，且表观反应速率表常数随活性翠兰溶液初始浓度的升高而降低；反应的催化剂最佳投入量为0.122g/L；光催化体系中的Na2SO4对于染料K-GL的降解表现出明显的促进作用，在较低浓度下，Na2SO4的最佳添加量为0.104mol/g，且随着其浓度的升高，表观反应速率常数随之增大；而掺加不同浓度的NaCl对光催化降解K-GL有抑止作用。
이분산태납미TiO2위광최화제，재고포류화상광최화반응기중대활성취란 K-GL염료용액진행광최화강해실험연구。통과개변광최화제투입량、염료용액적초시농도화 Na2SO4여 NaCl 적참가，탐토료영향광최화강해K-GL적인소，운용Langrmuir-Hinshelwood동역학방정대염료강해동역학규률진행료연구。결과표명，TiO2광최화강해활성취란K-GL적반응준순준일급반응동역학방정，차표관반응속솔표상수수활성취란용액초시농도적승고이강저；반응적최화제최가투입량위0.122g/L；광최화체계중적Na2SO4대우염료K-GL적강해표현출명현적촉진작용，재교저농도하，Na2SO4적최가첨가량위0.104mol/g，차수착기농도적승고，표관반응속솔상수수지증대；이참가불동농도적NaCl대광최화강해K-GL유억지작용。
Nanometer TiO2 dispersed in water was used as photocatalyst in a self-designed bubbling fluidized bed photocatalytic reactor ( BFBPR ) . Photocatalytic degradation kinetics of reactive turquoise blue K-GL in BFBPR was investigated by considering the dosage of photocatalyst,initial dye concentration,ionic strength of NaCl and Na2SO4. Furthermore,the Langrmuir-Hinshelwood kinetics equation was used to describe the photocatalytic degradation kinetics of dye K-GL. The photocatalytic degradation of reactive turquoise blue K-GL reaction followed a pseudo-first order kinetics equation, and the apparent reaction rate coefficient decreased with increasing initial dye concentration. The optimal catalyst amount was 0.122g/L. Addition of Na2SO4 promoted photocatalysis of K-GL at lower dye concentrations with the optimal addition of 0.104mol/g. In addition,the apparent reaction rate coefficient increased with increasing addition of Na2SO4,while the photocatalysis was inhibited with increasing addition of NaCl.