Carboxylic acid is one of the most crucial and widely used organic chemicals in daily human life activities. Hence preparation of this important chemical was performed under the application of the highly selective photo-catalysts through oxidation of alcohols to carboxylic acids. Herein, we have designed and disclosed a binary NH₂-MIL-125(Ti)/ NaBr) catalyst system to realize the effective transformation of alcohols into carboxylic acids under visible light irradiation. Hence, derivatives of benzyl alcohol containing either electron withdrawing and donating groups as well as aliphatic primary alcohols were effectively converted into the corresponding carboxylic acids. Based on our findings, NH₂-MIL-125(Ti) based photocatalytic system has shown efficient and highly selective activities for oxidation of alcohol especially the in-situ conversion of co-catalyst NaBr into the corresponding free radical can enhance the alcohol oxidation performance of the catalytic system.

羧酸是人类日常生活活动中最重要、应用最广泛的有机化学品之一。因此，这种重要化学物质的制备是在高选择性光催化剂的应用下通过将醇氧化成羧酸进行的。在此，我们设计并公开了一种二元NH ₂ -MIL-125(Ti)/NaBr)催化剂体系，以实现在可见光照射下醇类向羧酸的有效转化。因此，含有吸电子和给电子基团的苯甲醇以及脂肪族伯醇的衍生物被有效地转化为相应的羧酸。根据我们的发现，NH ₂-基于MIL-125(Ti)的光催化体系对醇的氧化表现出高效和高选择性的活性，特别是助催化剂NaBr原位转化为相应的自由基可以提高催化体系的醇氧化性能。