Inorganic oxides such as titanium dioxide (TiO₂) and zinc oxide (ZnO) are desired as ultraviolet (UV) filters. Such UV‐filters derived from naturally occurring oxides are promising components for formulating personal care products sustainably. However, UV‐filters based on inorganic oxides pose challenges to formulators and users in terms of strong adherence to skin and high photocatalytic activity. As a means to influence the morphology of such functional oxides, a simple one‐dimensional (1D) ZnO nanorod was synthesized via solvothermal technique assisted by the seed‐growth method. Thus bio‐renewable ferulic acid (FA) was used as a capping and structure‐directing agent to obtain tunable nanostructures such as spheres, sheets, and rods. SEM and TEM analyses revealed the self‐assembled elongated morphology with increased aspect ratio. Based on these as well as other analyses the growth mechanism of zinc oxide functionalized ferulic acid (ZnO@FA) was investigated. ZnO@FA also exhibited broad absorption in the UV−B and A regions, unique antioxidant behavior along with a highly suppressed photocatalytic activity. The ZnO@FA are sustainable, functional materials. These materials are potentially useful in areas such as cosmetics, functional coatings, sensors and solar cells.

中文翻译：

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以生物可再生阿魏酸为载体获得的可调谐杂化一维ZnO纳米结构及其应用

无机氧化物，例如二氧化钛（TiO ₂）和氧化锌（ZnO）作为紫外线（UV）滤光片是理想的。此类源自天然氧化物的紫外线滤光片是可持续配制个人护理产品的有前途的成分。但是，基于无机氧化物的紫外线过滤剂在牢固附着于皮肤和高光催化活性方面给配方设计师和使用者带来了挑战。作为影响这种功能性氧化物形态的一种手段，通过种子生长法辅助的溶剂热技术合成了简单的一维（1D）ZnO纳米棒。因此，可生物再生的阿魏酸（FA）被用作加帽和结构导向剂，以获得可调谐的纳米结构，例如球形，片状和棒状。SEM和TEM分析显示出自组装的细长形貌，纵横比增加。基于这些以及其他分析，研究了氧化锌官能化的阿魏酸（ZnO @ FA）的生长机理。ZnO @ FA在UV-B和A区域也表现出广泛的吸收性，独特的抗氧化剂行为以及高度抑制的光催化活性。ZnO @ FA是可持续的功能材料。这些材料在化妆品，功能涂料，传感器和太阳能电池等领域可能有用。