纤维素
光催化
形态学(生物学)
双酚A
催化作用
化学工程
纳米复合材料
羟基自由基
材料科学
纳米颗粒
降级(电信)
兴奋剂
化学
有机化学
纳米技术
激进的
环氧树脂
计算机科学
电信
光电子学
遗传学
工程类
生物
作者
Chun Shi,Lili Zhang,Zhengjun Shi,Zhiguo Wang,Jinxia Ma
标识
DOI:10.1016/j.ijbiomac.2022.12.222
摘要
The morphology of metal oxide is a crucial factor for improving of catalysis properties. As a renewable and environmentally friendly biomass material, cellulose has been widely used to induce the morphology of semiconductors. The contributions of cellulose hydroxyl groups and spatial hindrance in tailoring Al doped ZnO (AZO) morphologies were investigated. The morphology of AZO could be gradually induced from flake-like to flower-like with the increase of cellulose hydroxyl content per unit volume. At the same time, the changes in spatial hindrance had no apparent effect on the morphology of AZO. So the cellulose hydroxyl groups that act to induce the in situ growth of AZO nanoparticles on cellulose substrates. The results further confirmed the strong interaction between cellulose hydroxyl groups and Zn2+. In addition, the photocatalytic activities of Al-doped ZnO/cellulose nanocomposites (AZOC) with different morphologies were evaluated by the degradation of bisphenol A (BPA). The high hydroxyl contents of cellulose substrates contributed to the growth of flower-like AZO with high light utilization and photocatalytic activity. This work proposed cleaner strategies to modify semiconductor morphologies for photocatalysis by regulating the content of cellulose hydroxyl contents.
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