The effect of illumination on the H₂O + C₂H₆ reaction was investigated on Au deposited on TiO₂, ZnO and CeO₂ samples. Whereas the photocatalytic decomposition of ethane is very limited even on the most active pure TiO₂: the conversion was only ∼4% at 300 K in 210 min, the deposition of Au metal onto TiO₂ markedly enhanced the rate of photo-induced decomposition of C₂H₆. Addition of H₂O to ethane further enhanced the conversion and led to the production of H₂. The highest conversion of ethane, 23.5% was measured for Au/TiO₂. Ethylene was not detected even in traces, indicating the complete degradation of C₂H₆ to H₂ and carbon containing deposit. Temperature programmed reaction (TPR) measurements revealed that the carbonaceous deposit on the catalysts is very stable. On Au/TiO₂ it reacted with H₂ to give CH₄ at Tp = 453 and 604 K and C₂H₆ and C₃H₈ with Tp = 602 K. The promoting effect of metals was explained by a better separation of charge carriers induced by illumination and by the enhanced electronic interaction between metals and TiO₂.

对沉积在TiO ₂，ZnO和CeO ₂样品上的Au研究了光照对H ₂ O + C ₂ H ₆反应的影响。尽管即使在活性最强的纯TiO ₂上，乙烷的光催化分解也非常有限：在300 K下210分钟内转化率仅为〜4％，但金金属在TiO ₂上的沉积显着提高了光诱导的TiO ₂分解速率。 C ₂ H ₆。在乙烷中添加H ₂ O进一步提高了转化率，并导致了H _2的产生。测得的Au / TiO ₂乙烷最高转化率为23.5％。即使痕量也没有检测到乙烯，表明C ₂ H ₆完全降解为H ₂和含碳沉积物。程序升温反应（TPR）测量表明，催化剂上的碳质沉积物非常稳定。在Au / TiO _2上，它与H ₂反应，在Tp = 453和604 K下生成CH _4，在Tp = 602 K的条件下生成C ₂ H ₆和C ₃ H ₈。通过照明和金属与TiO ₂之间增强的电子相互作用诱导的载流子。