Fabrication and characterization of adenine‐grafted carbon‐modified amorphous ZnO with enhanced catalytic activity,Applied Organometallic Chemistry

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Fabrication and characterization of adenine‐grafted carbon‐modified amorphous ZnO with enhanced catalytic activity
Applied Organometallic Chemistry ( IF 3.7 ) Pub Date : 2020-10-15 , DOI: 10.1002/aoc.6013
Bushra Chowhan ₁ , Monika Gupta ₁ , Neha Sharma ₁

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Sustainability has become a countersign and guiding rule for current field of nanocatalysis. Herein, we report a cost‐effective, greener, clean, and proficient process for the formation of adenine‐grafted carbon‐modified amorphous ZnO nanocatalyst (ZnO@AC) derived from garment industry waste (waste cotton cloth). Due to adenine functionality, catalyst provides consistent dispersion of ZnO providing catalytically active sites for the synthesis of pyrano[2,3‐d]pyrimidines and bis(pyrazol‐5‐ole) and alters the electron–hole pair recombination without notable mass‐transfer limitation. The photocatalytic evaluation of ZnO@AC was performed on methyl orange (MO) dye under UV light and 87.3% degradation efficiency resulted in 75 min. Moreover, the catalyst was recyclable and could be reused up to eight runs, making it more sustainable. The morphology of ZnO@AC remained intact with the slight agglomeration of ZnO nanoparticles (nps) after eight recoveries according to the transmission electron microscopy (TEM) image of the used catalyst.

中文翻译：

具有增强催化活性的腺嘌呤接枝碳修饰无定形ZnO的制备和表征

可持续性已经成为当前纳米催化领域的标志和指导原则。在此，我们报道了一种成本效益高，绿色环保，清洁高效的工艺，该工艺可用于制衣业废料（废棉布）形成的腺嘌呤接枝的碳改性无定形ZnO纳米催化剂（ZnO @ AC）。由于腺嘌呤官能团，催化剂可提供一致的ZnO分散，从而为吡喃并[2,3- d]嘧啶和双（吡唑-5-烯烃）并改变电子-空穴对的重组，而没有明显的传质限制。ZnO @ AC的光催化评价是在紫外光下对甲基橙（MO）染料进行的，在75分钟内降解率为87.3％。此外，该催化剂可回收利用，最多可重复使用八次，使其更具可持续性。根据所用催化剂的透射电子显微镜（TEM）图像，经过八次回收后，ZnO @ AC的形态仍保持完整，ZnO纳米颗粒（nps）发生了轻微的团聚。

更新日期：2020-11-06

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