Institute of Physical Chemistry PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Bioresour Technol. 2011 Dec;102(24):11254-7. doi: 10.1016/j.biortech.2011.09.101. Epub 2011 Oct 2.
Glucose was oxidized in the presence of powdered TiO(2) photocatalysts synthesized by an ultrasound-promoted sol-gel method. The catalysts were more selective towards glucaric acid, gluconic acid and arabitol (total selectivity approx. 70%) than the most popular photocatalyst, Degussa P-25. The photocatalytic systems worked at mild reaction conditions: 30°C, atmospheric pressure and very short reaction time (e.g. 5 min). Such relatively good selectivity towards high-valued molecules are attributed to the physico-chemical properties (e.g. high specific surface area, nanostructured anatase phase, and visible light absorption) of novel TiO(2) materials and the reaction conditions. The TiO(2) photocatalysts have potential for water purification and energy production and for use in the pharmaceutical, food, perfume and fuel industries.
葡萄糖在超声促进溶胶-凝胶法合成的粉末状 TiO(2)光催化剂的存在下被氧化。与最受欢迎的光催化剂 Degussa P-25 相比，这些催化剂对葡萄糖酸、葡萄糖醛酸和阿糖醇（总选择性约为 70%）更具选择性。光催化体系在温和的反应条件下工作：30°C、常压和极短的反应时间（例如 5 分钟）。这种对高价值分子相对较好的选择性归因于新型 TiO(2)材料的物理化学性质（例如高比表面积、纳米结构锐钛矿相和可见光吸收）和反应条件。TiO(2)光催化剂具有在水净化和能源生产中的应用潜力，也可用于制药、食品、香水和燃料行业。
