Construction of WO3 nanocubes@Loess for rapid photocatalytic degradation of organics in wastewater under sunlight
Construction of WO3 nanocubes@Loess for rapid photocatalytic degradation of organics in wastewater under sunlight
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WO3纳米立方体@黄土的构建用于在阳光下快速光催化降解废水中的有机物
DOI：
10.1007/s11356-022-21633-9
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发表时间：
2022-06
影响因子：
5.8
通讯作者：
Yufeng He
中科院分区：
文献类型：
--
作者：
Hua Yang;Peiyu Cao;Yaping Zhang;Meiling Zhou;Qianqian Wang;Rongmin Wang;Pengfei Song;Yufeng He
在环境污染得到极大改善的今天，开发低成本、环境友好的水处理材料仍然是水处理领域的挑战。本文以廉价环保的天然黄土颗粒（LoP）为原料，采用一锅水热法在其表面原位生长三氧化钨纳米立方体（WO 3 NCs），制备了稳定的黄土基光催化剂（WO3NCs@LoP）。采用扫描电子显微镜（SEM）、X射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）、紫外-可见漫反射光谱（UV-Vis DRS）和X射线光电子能谱（XPS）等方法对样品进行了表征。在可见光照射下，将WO3NCs@LoP的光催化性能应用于有机物的光催化降解。结果表明，在20 min内，亚甲基蓝（MB）的去除率可达99%，高于纯LoP和WO 3 NCs等材料的去除率。WO3NCs@LoP的光催化活性在9次循环后仍保持在85%，表明其具有较高的稳定性和可重复使用性。研究表明，WO3NCs@LoP的禁带宽度变窄和电子-氢离子复合的有效控制协同作用提高了其光降解效率。综上所述，以天然矿物为载体，可以探索一种新型的生态友好型光催化剂，用于废水处理中有机污染物的光降解。
In nowadays, environmental pollution has been greatly improved, but the development of low-cost and environmentally friendly materials are still challenge in the field of water treatment. Herein, a cheap and eco-friendly natural loess particle (LoP) was used for in situ growth of tungsten trioxide nanocubes (WO3NCs) on its surface via a simple one-pot hydrothermal method, which afforded a stable loess-based photocatalyst (WO3NCs@LoP). It was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) analysis, UV-Vis diffuse reflectance spectra (UV-Vis DRS), and X-ray photoelectron spectroscopy (XPS). The photocatalytic performances of WO3NCs@LoP were applied to photodegradation of organics under visible-light illumination. It was found that the removal rate of methylene blue (MB) got to 99% within 20 min, which was higher than that of materials, such as pure LoP and WO3NCs. Moreover, the photocatalytic activity of WO3NCs@LoP remained 85% after 9 cycling times, indicating its high stability and reusability. It was suggested that the synergy of the well narrowed band gap and effectual control of e--h+ recombination in WO3NCs@LoP improve its photodegradation efficiency. In summary, using natural minerals (LoP) as carrier, a novel eco-friendly photocatalyst could be explored for photodegradation of organic pollutions in wastewater treatment.
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影响因子：
2.2
作者：
Yau-Jain Shen;Haiyan Yan;Rongmin Wang;Pengfei Song;Yufeng He
通讯作者：
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影响因子：
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作者：
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通讯作者：
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作者：
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影响因子：
3.5
作者：
Xiaofeng Cui;Yu Zhou;Jian Wu;Shan Ling;Lijun Zhao;Jianli Zhang;Junwei Wang;Wei Qin;Yuanguang Zhang
通讯作者：
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