Nisticò Roberto, Bianco Prevot Alessandra, Magnacca Giuliana, Canone Lorenzo, García-Ballesteros Sara, Arques Antonio
Department of Applied Science and Technology DISAT, Polytecnic of Torino, C.so Duca degli Abruzzi 24, 10124 Torino, Italy.
Chemistry Department, University of Torino, 10125 Torino, Italy.
Nanomaterials (Basel). 2019 Jul 30;9(8):1091. doi: 10.3390/nano9081091.
The photodegradation of an aqueous solution of diclofenac (DCF) has been attempted in the presence of hydrogen peroxide and organic/inorganic hybrid magnetic materials under simulated and real solar light. The hybrid magnetic materials have been prepared via coprecipitation synthesis starting from iron(II) and iron(III) inorganic salts in the presence of bioderived organic products (i.e., chitosan or bio-based substances isolated from commercially available composted urban biowastes) acting as stabilizers of the iron-containing phase. In addition to the as prepared hybrid materials, the corresponding materials obtained after a pyrolytic step at low temperature (550 °C) have been tested. The obtained results evidenced the capability of the materials to activate hydrogen peroxide at mild pH promoting DCF (photo) degradation. All the materials feature also as adsorbents since a decrease of DCF is observed also when working in the dark and in the absence of hydrogen peroxide.
在模拟太阳光和实际太阳光条件下，尝试了在过氧化氢和有机/无机杂化磁性材料存在的情况下，对双氯芬酸（DCF）水溶液进行光降解。这些杂化磁性材料是通过共沉淀合成法制备的，以铁（II）和铁（III）无机盐为原料，在生物衍生有机产物（即壳聚糖或从市售堆肥城市生物废物中分离出的生物基物质）作为含铁相稳定剂的情况下进行。除了制备好的杂化材料外，还测试了在低温（550°C）热解步骤后得到的相应材料。所得结果证明了这些材料在温和pH值下活化过氧化氢促进DCF（光）降解的能力。所有材料还具有吸附剂的特性，因为在黑暗中且不存在过氧化氢的情况下工作时，也观察到DCF含量有所下降。
