Activated persulfate for efficient bisphenol A degradation via nitrogen-doped Fe/Mn bimetallic biochar.

IF 2.5 4区 环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL Water Science and Technology Pub Date : 2024-08-01 Epub Date: 2024-08-12 DOI:10.2166/wst.2024.275
Zexian Cao, Changhe Yang, Wenqiang Zhang, Huiliang Shao
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Abstract

To achieve the purpose of treating waste by waste, in this study, a nitrogen-doped Fe/Mn bimetallic biochar material (FeMn@N-BC) was prepared from chicken manure for persulfate activation to degrade Bisphenol A (BPA). The FeMn@N-BC was characterized by scanning electron microscopy (SEM), X-ray diffract meter (XRD), fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectrometer (XPS) and found that N doping can form larger specific surface area. Catalytic degradation experiments showed that Fe/Mn bimetal doping not only accelerated the electron cycling rate on the catalyst surface, but also makes the biochar magnetic and easy to separate, thus reducing environmental pollution. Comparative experiments was concluded that the highest degradation efficiency of BPA was achieved when the mass ratios of urea and chicken manure, Fe/Mn were 3:1 and 2:1, respectively, and the pyrolysis temperature was 800 °C, which can almost degrade all the BPA in 60 min. FeMn@N-BC/PS system with high catalytic efficiency and low consumables is promising for reuse of waste resources and the remediation of wastewater.

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通过氮掺杂的铁/锰双金属生物炭实现活性过硫酸盐对双酚 A 的高效降解。
为达到以废治废的目的,本研究利用鸡粪制备了一种掺氮的铁锰双金属生物炭材料(FeMn@N-BC),用于过硫酸盐活化降解双酚 A(BPA)。通过扫描电子显微镜(SEM)、X 射线衍射仪(XRD)、傅立叶变换红外光谱(FT-IR)和 X 射线光电子能谱仪(XPS)对 FeMn@N-BC 进行了表征,发现 N 掺杂能形成更大的比表面积。催化降解实验表明,掺杂铁/锰双金属不仅能加快催化剂表面的电子循环速率,还能使生物炭具有磁性,易于分离,从而减少环境污染。对比实验得出,当尿素和鸡粪、Fe/Mn 的质量比分别为 3:1 和 2:1,热解温度为 800 ℃ 时,双酚 A 的降解效率最高,几乎可以在 60 分钟内降解所有双酚 A。FeMn@N-BC/PS系统具有催化效率高、耗材少的特点,在废物资源再利用和废水修复方面具有广阔的前景。
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来源期刊
Water Science and Technology
Water Science and Technology 环境科学-工程:环境
CiteScore
4.90
自引率
3.70%
发文量
366
审稿时长
4.4 months
期刊介绍: Water Science and Technology publishes peer-reviewed papers on all aspects of the science and technology of water and wastewater. Papers are selected by a rigorous peer review procedure with the aim of rapid and wide dissemination of research results, development and application of new techniques, and related managerial and policy issues. Scientists, engineers, consultants, managers and policy-makers will find this journal essential as a permanent record of progress of research activities and their practical applications.
期刊最新文献
Sewage sludge management and enhanced energy recovery using anaerobic digestion: an insight. Spatial differences of dissolved organic matter composition and humification in an artificial lake. Wetland systems for water pollution control. Activated persulfate for efficient bisphenol A degradation via nitrogen-doped Fe/Mn bimetallic biochar. Assessment of water quality in wells and springs across various districts of Taza City, Morocco.
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