We report on the influence of post-printing curing on the physico-chemical properties of silica-bonded particulate titania photocatalytic layers. Ink consisting of commercial titania nanoparticles and a novel siloxane binder was patterned by inkjet printing. Printed layers were mineralized by three processes: thermal annealing by convection heating in an electric furnace, UV-curing with a high pressure mercury vapour lamp, and atmospheric plasma treatment in a coplanar dielectric barrier discharge. The influence of these processes on the extend of the binder mineralization and resulting physicochemical properties, charge generation and transport as well as photocatalytic activity was investigated. All curing methods proved to be capable to mineralize the binder but atmospheric plasma curing stands out as the fastest one enabling a direct implementation into roll-to-roll fabrication processes.

我们报告了印刷后固化对二氧化硅键合的二氧化钛微粒光催化层的物理化学性质的影响。由商业二氧化钛纳米颗粒和新型硅氧烷粘合剂组成的油墨通过喷墨印刷形成图案。印刷层通过以下三个过程矿化：在电炉中通过对流加热进行热退火，用高压汞蒸气灯进行UV固化以及在共面电介质阻挡层放电中进行大气等离子体处理。研究了这些过程对粘结剂矿化程度和所产生的理化性质，电荷产生和运输以及光催化活性的影响。