Cl掺杂NaBiO_(3)强化模拟太阳光催化降解水中双酚S  

Enhancement of Simulated Solar Photocatalytic Degradation of Bisphenol S in Water by Cl Doped NaBiO_(3)

作　　者：姚若升 高玉蓉 窦容妮 林文惠 李雨菲 谢彦海 蔡河山 方铮 YAO Ruo-sheng;GAO Yu-rong;DOU Rong-ni;LIN Wen-hui;LI Yu-fei;XIE Yan-hai;CAI He-shan;FANG Zheng(Biochar Engineering Technology Research Center of Guangdong Province,Physical Science Public Platform,School of Environmental and Chemical Engineering,Foshan University,Guangdong Foshan 528000;Agronomy College,Shenyang Agricultural University,Liaoning Shenyang 110866;Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control,School of Environmental Science and Engineering,Guangdong University of Petrochemical Technology,Guangdong Maoming 525000,China)

机构地区：[1]佛山科学技术学院环境与化学工程学院,广东佛山528000 [2]沈阳农业大学农学院,辽宁沈阳110866 [3]广东石油化工学院环境科学与工程学院,广东茂名525000

出　　处：《广州化工》2023年第11期39-43,65,共6页GuangZhou Chemical Industry

基　　金：国家自然科学基金项目(42107031);广东省普通高校科研项目(青年创新人才类)2019KQNCX169;佛山科学技术学院2020年度学生学术基金立项项目。

摘　　要：本文以Bi(NO_(3))_(3)和NaBiO_(3)为Bi源,通过水热法制备具有大偶极矩的Cl掺杂NaBiO_(3)(Cl-NaBiO_(3))。以新型环境激素双酚S(BPS)为目标污染物,研究了Cl-NaBiO_(3)的光催化活性及其提升BPS降解效率的机制。结果表明,Cl掺杂原子的引入进一步提升了NaBiO_(3)的光催化活性,有效抑制光生电子-空穴对的复合。与BiOCl相比,Cl-NaBiO_(3)对BPS的模拟太阳光催化降解效率明显提升,对BPS 30 min降解率可达到90%,降解速率常数分别是纯NaBiO_(3)和BiOCl的2.73和3.19倍,在处理废水中有机污染物方面拥有潜在的应用前景。Due to widespread distribution and severe endocrine disrupting effects,bisphenols have been widely concerned by scientists and ordinary people.Therefore,the approach for effective removal and degradation of bisphenols is badly needed.Cl doped NaBiO_(3)(Cl-NaBiO_(3))with enhanced photocatalytic degradation performance was prepared through hydrothermal method using Bi(NO_(3))_(3)and NaBiO_(3)as Bi precursors.The improved photocatalytic activity of Cl-NaBiO_(3)and its mechanisms were investigated using bisphenol S(BPS)as the objective pollutant under simulated sunlight irradiation.It was found that the doping of Cl atoms into NaBiO_(3),with narrowed band gap and fewer recombination of photogenerated electron-hole pairs,further enhanced the photocatalytic activity of NaBiO_(3).Compared with BiOCl,the simulated solar photocatalytic degradation efficiency of Cl-NaBiO_(3)for BPS was significantly improved,the degradation rate of BPS can reach 90%in 30 min,and the degradation rate constants were 2.73 and 3.19 times that of pure NaBiO_(3)and BiOCl,respectively.It had potential application prospects in terms of organic pollutants.It was hoped that this study would be an overarching scientific opportunity for an intensive understanding of photocatalytic degradation of BPS using Cl-NaBiO_(3).

关 键 词：模拟太阳光 降解 双酚类污染物 高级氧化 水处理 

分 类 号：TB332[一般工业技术—材料科学与工程]