One-Pot Solvothermal Synthesis of Flower-Like S-Doped BiOCl for Enhanced Photocatalytic Property in Dye Degradation and Nitrogen Fixation
One-Pot Solvothermal Synthesis of Flower-Like S-Doped BiOCl for Enhanced Photocatalytic Property in Dye Degradation and Nitrogen Fixation
复制标题
一锅溶剂热合成花状 S 掺杂 BiOCl 增强染料降解和固氮光催化性能
DOI：
10.1002/slct.202100013
复制
发表时间：
2021
期刊：
影响因子：
2.1
通讯作者：
Zhang Xiufang
中科院分区：
文献类型：
--
作者：
Wang Hongjuan;Hua Chenghe;Lan Meng;Zheng Nan;Dong Xiaoli;Ma Hongchao;Zhang Xiufang
如今，环境污染和能源短缺已引起人们的广泛关注。在这里，我们报告说，S掺杂BiOCl光催化剂是通过一个简单的溶剂热过程成功地制造。通过X射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线光电子能谱（XPS）、氮吸附-脱附、UV/维斯漫反射（DRS）和光致发光（PL）发射光谱研究了所获得的S掺杂BiOCl光催化剂。通过对阳离子染料罗丹明B（RhB）和阴离子染料刚果红（CR）的光催化降解，评价了不同硫含量的掺杂BiOCl光催化剂的光催化性能。结果表明，所有S掺杂的BiOCl样品具有比纯BiOCl更好的光催化活性。具体而言，S（6%）-BiOCl样品对RhB和CR的降解率分别为99%和90%。同时，研究了S掺杂BiOCl样品的光催化固氮性能。结果表明，S（6%）-BiOCl样品具有优异的NH3产率，为108.6 μ mol g − 1h − 1。 此外，S（6%）-BiOCl催化剂具有优异的可回收性和稳定性。本工作为设计高效的光催化剂同时实现光催化降解和固氮提供了一条简单易行的途径。
Nowadays, environmental pollution and energy shortage have aroused people‘s wide concern. Here we report that S‐doped BiOCl photocatalyst was successfully fabricated via a simple solvothermal process. The as‐obtained S‐doped BiOCl photocatalysts were investigated by X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X‐ray photoemission spectroscopy (XPS), nitrogen adsorption‐desorption, UV/Vis diffuse reflectance (DRS), and photoluminescence (PL) emission spectra. The photocatalytic performance of the S‐doped BiOCl photocatalyst with different S contents was evaluated by the photocatalytic degradation of cationic dye (Rhodamine‐B (RhB)) and anionic dye (Congo red (CR)). The results reveal that all the S‐doped BiOCl samples possess better photocatalytic activity than pure BiOCl. Specifically, the degradation rate of S(6 %)‐BiOCl sample for RhB and CR was 99 % and 90 %, respectively. Meanwhile, the photocatalytic nitrogen fixation performance of the S‐doped BiOCl sample was investigated. The results show that the S(6 %)‐BiOCl sample possesses an excellent NH3yield of 108.6 μmol g−1h−1. Moreover, the S(6 %)‐BiOCl catalysts have excellent recyclability and stability. This work provides a facile and accessible pathway to design effective photocatalysts for both photocatalytic degradation and nitrogen fixation.