To enhance the solar-light photocatalytic efficiency of MoO₃ for conversion of CO₂ into CH₄ and CO, CuS and MoS₂ co-modified h-MoO₃ (MoO₃@MoS₂-CuS) composites were sulfurized by dielectric barrier discharge (DBD) plasma. The photocatalytic activities of MoO₃@MoS₂ and MoO₃@MoS₂-CuS for solar-light driven CO₂ photoreduction were better than that of h-MoO₃, while MoO₃@MoS₂-CuS presented the enhancing CH₄ yield and the declining CO yield. It’s ascribed to the improved visible light response and the efficient charge transfer and separation. In addition, CO₂ and H₂O molecules were trapped and photo-reduced at the naked edge-rich sites of junction interface between MoO₃, MoS₂, and CuS. The optimal MoO₃@MoS₂-CuS-3 with the CuS content of 2.27 wt% presented the CH₄ yield of 44.64 μmol g^-1 h^-1 and CO yield of 7.59 μmol g^-1 h^-1, and its durability was slightly declined after three cycles.

为了提高MoO ₃的太阳光光催化效率，以将CO ₂转化为CH ₄和CO，通过介电势垒放电将CuS和MoS ₂共改性的h-MoO ₃（MoO ₃ @MoS ₂ -CuS）复合材料硫化（ DBD）等离子。的MoO的光催化活性_3个@MoS ₂和的MoO ₃ @MoS ₂ -CuS太阳能光驱动的CO ₂光还原比使得h-的MoO的更好₃，而的MoO _3个@MoS ₂ -CuS呈现的提高CH ₄收率和下降的一氧化碳收率。这归因于改善的可见光响应以及有效的电荷转移和分离。此外，CO ₂和H ₂ O分子在MoO ₃，MoS ₂和CuS之间的结界面的裸露的富边位置处被捕获并被光还原。CuS含量为2.27 wt％的最佳MoO ₃ @MoS ₂ -CuS-3 的CH ₄产率为44.64μmolg ^-1 h ^-1，CO产率为7.59μmolg ^-1 h ^-1，其耐久性为经过三个周期后略有下降。