Qu Yanan, Li Xiaolin, Bu Kang, Zhang Jiayi, Chen Da, Liang Junhui, Chen Huayu, Li Huafeng, Bai Liqun
College of Chemistry and Materials Engineering, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China.
Molecules. 2024 May 24;29(11):2476. doi: 10.3390/molecules29112476.
Photocatalysis is one of the most promising pathways to relieve the environmental contamination caused by the rapid development of modern technology. In this work, we demonstrate a green manufacturing process for the 3D/3D rod-shaped bamboo charcoal/BiWO photocatalyst (210BC-BWO) by controlled carbonization temperature. A series of morphology characterization and properties investigations (XRD, SEM, UV-vis DRS, transient photocurrent response, N absorption-desorption isotherms) indicate a 210BC-BWO photocatalyst with higher charge separation efficiency, larger surface area, and better adsorption capacity. The excellent photocatalytic performance was evaluated by degrading rhodamine B (RhB) (98.5%), tetracycline hydrochloride (TC-HCl) (77.1%), and H evolution (2833 μmol·g·h) coupled with furfuryl alcohol oxidation (3097 μmol·g·h) under visible light irradiation. In addition, the possible mechanisms for degradation of organic pollutants, H evolution, and furfuryl alcohol oxidation were schematically investigated, which make it possible to exert photocatalysis by increasing the active radical. This study shows that the combination of bamboo charcoal and bismuth tungstate can be a powerful photocatalyst that rationally combines H evolution coupled with furfuryl alcohol oxidation and degradation of pollutants.
光催化是缓解现代技术快速发展所造成的环境污染的最具前景的途径之一。在这项工作中，我们通过控制碳化温度展示了一种用于3D/3D棒状竹炭/ BiWO光催化剂（210BC - BWO）的绿色制造工艺。一系列的形貌表征和性能研究（XRD、SEM、紫外可见漫反射光谱、瞬态光电流响应、氮吸附 - 解吸等温线）表明210BC - BWO光催化剂具有更高的电荷分离效率、更大的表面积和更好的吸附能力。通过在可见光照射下降解罗丹明B（RhB）（98.5%）、盐酸四环素（TC - HCl）（77.1%）以及析氢（2833 μmol·g·h）并耦合糠醇氧化（3097 μmol·g·h）来评估其优异的光催化性能。此外，还示意性地研究了有机污染物降解、析氢和糠醇氧化的可能机制，这使得通过增加活性自由基来发挥光催化作用成为可能。这项研究表明，竹炭和钨酸铋的组合可以成为一种强大的光催化剂，它合理地结合了析氢与糠醇氧化以及污染物降解。
