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学者姓名：曹海雷
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Abstract ：
The low efficiency of photogenerated charge separation significantly hinders the photocatalytic nitrogen (N2) fixation. Local polarization electric field (LPEF) induced by defects has been known to enhance charge separation, yet the synergistic effects and mechanisms related to different types of defects in pure phases remain poorly understood. In this study, defect-free bismuth oxybromide (BiOBr; BOB), together with single vacancy (BOB-VBr and BOB-VO) and dual vacancy (BOB-VBrO) analogues, were successfully synthesized, and the presence of these specific vacancies was comprehensively characterized. Notably, the dual vacancy BOB-VBrO exhibited the highest photocatalytic NH3 generation rate of 266 mu mol g-1 h-1 in a liquid-solid biphasic system, which was 6.1, 1.5, and 1.4 times higher than those of BOB, BOB-VBr, and BOB-VO, respectively. Furthermore, the NH3 generation capacity of BOB-VBrO reached an impressive rate of 978 mu mol g-1 h-1 in a gas-liquid-solid triphasic system. Photoelectrochemical tests revealed that BOB-VBrO demonstrated the highest light conversion efficiency, followed by BOB-VO, BOB-VBr, and BOB. The relative intensity of the internal electric field in BOB-VBrO was also significantly high, being 1.8, 2.4, and 3.9 times greater than those of BOB-VO, BOB-VBr, and BOB, respectively. The Br and O vacancies synergistically induced LPEF between the [O]/[Br] and [Bi] layers. In situ irradiation X-ray photoelectron spectroscopy indicated that O and Br vacancies of the oligomers could synergistically enhance the LPEF, thereby facilitating the transfer of photogenerated electrons from O/Br to Bi. Additionally, the practical feasibility of BOB-VBrO in photocatalytic N2 fixation was validated to produce liquid nitrogenous fertilizer for plant growth, revealing its potential application in agricultural production.
Keyword ：
BiOBr BiOBr local polarizationelectric field local polarizationelectric field photocatalytic nitrogen fixation photocatalytic nitrogen fixation synergy mechanism synergy mechanism vacancies vacancies
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| GB/T 7714 | Zhong, Zhou , Zhang, Heng-Jian , Yang, Ya-Ying et al. Oxygen and Bromine Vacancies Synergistically Induce Local Polarization Electric Field for Enhanced Photocatalytic Nitrogen Fixation on BiOBr [J]. | ACS CATALYSIS , 2025 , 15 (8) : 6334-6345 . |
| MLA | Zhong, Zhou et al. "Oxygen and Bromine Vacancies Synergistically Induce Local Polarization Electric Field for Enhanced Photocatalytic Nitrogen Fixation on BiOBr" . | ACS CATALYSIS 15 . 8 (2025) : 6334-6345 . |
| APA | Zhong, Zhou , Zhang, Heng-Jian , Yang, Ya-Ying , Zhang, Tian-Kuan , Qu, Xing-Hua , Ma, Li et al. Oxygen and Bromine Vacancies Synergistically Induce Local Polarization Electric Field for Enhanced Photocatalytic Nitrogen Fixation on BiOBr . | ACS CATALYSIS , 2025 , 15 (8) , 6334-6345 . |
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The viability and sustainability of advanced oxidation processes (AOPs) for the removal of organic pollutants are critically dependent on the catalytic efficiency, environmental compatibility, and reusability of catalysts employed. In this study, we presented a novel recyclable cobalt-incorporated MoS2 chitosan hydrogel composite (CM@CS) as an efficient AOP catalyst for the degradation of atrazine (ATZ) activated by peroxymonosulfate (PMS). The CM@CS composite demonstrated exceptional catalytic performances, particularly at low ATZ concentrations (0.1 mg/L). The degradation rate achieved nearly 100 % with 10 mg CM@CS and 0.01 mM PMS, showing superior catalytic efficacy compared to that of the Co-MoS2 (CM) powder. Besides, the CM@CS composite primarily activated PMS through a non-radical pathway dominated by singlet oxygen (1O2), distinguishing from the radical-driven mechanisms by CM catalysts. This non-radical behavior is attributed to structural and electronic modifications induced by the hydrogel matrix, including enhanced carbonyl functionality and improved charge transfer efficiency. The CM@CS composites exhibited high degradation efficiency across various water matrices due to the reliability of the non-radical pathway, minimal metal ion leaching benefited from the confinement and fixation of active sites in hydrogels, and excellent recyclability. These findings highlight CM@CS as a promising catalyst for advancing non-radical PMS activation mechanisms for applications in practical water remediation.
Keyword ：
Advanced oxidation processes Advanced oxidation processes Environmental sustainability Environmental sustainability Hydrogel Hydrogel Non-radical pathway Non-radical pathway PMS PMS
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| GB/T 7714 | Chen, Saili , Huang, Jiajia , Fang, Han-Liang et al. Chitosan hydrogel catalyst shifts PMS activation towards a singlet oxygen-dominated non-radical pathway for efficient pollutant degradation [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 525 . |
| MLA | Chen, Saili et al. "Chitosan hydrogel catalyst shifts PMS activation towards a singlet oxygen-dominated non-radical pathway for efficient pollutant degradation" . | CHEMICAL ENGINEERING JOURNAL 525 (2025) . |
| APA | Chen, Saili , Huang, Jiajia , Fang, Han-Liang , Chen, Ting-Ting , Pan, Xiaohong , Yan, Zhi-Wu et al. Chitosan hydrogel catalyst shifts PMS activation towards a singlet oxygen-dominated non-radical pathway for efficient pollutant degradation . | CHEMICAL ENGINEERING JOURNAL , 2025 , 525 . |
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Heterogeneous Fenton systems involving hydrogen peroxide (H2O2) have displayed considerable potential for degradation of emerging contaminants (ECs). At the same time, regulating the activation and production of oxidative species is a prerequisite for ensuring efficient and safe utilization of H2O2 in advanced oxidation processes (AOPs). Herein, sulfur-vacancy Pyrites (Sv-FeS2) were fabricated and exploited for efficient H2O2 activation by increasing the adsorption energy and interfacial charge transfer capability of H2O2 on active Fe sites, thereby promoting its barrier-free dissociation at the surface of Sv-FeS2. This Fenton system therefore exhibited superior catalytic activity and environmental robustness in the degradation of phthalates (PAEs) via the singlet oxygen (O-1(2)) pathway, which achieved a pollutant degradation rate constant of 0.210 min(-1), considerably outperforming that of the FeS2/H2O2 system (0.053 min 1). Notably, the Sv-FeS2/H2O2 system displayed excellent performances in continuous water treatment trials, achieving nearly 100 % degradation of micropollutants (5000 mL) in 42 h and a 4-log pathogen inactivation in 30 min. Overall, this work presents a promising approach for the use of iron-sulfur minerals as heterogeneous Fenton catalysts for the remediation of environmental pollution caused by PAEs.
Keyword ：
FeS2 FeS2 Heterogeneous Fenton catalysis Heterogeneous Fenton catalysis Sulfur vacancy Sulfur vacancy Water treatment Water treatment
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| GB/T 7714 | Fang, Han-Liang , Xu, Yu-Hang , Jin, Xiang-Min et al. Superior degradation of endocrine disruptors over defective iron pyrites assisted by vacancy-induced disassociation of hydrogen peroxide [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 525 . |
| MLA | Fang, Han-Liang et al. "Superior degradation of endocrine disruptors over defective iron pyrites assisted by vacancy-induced disassociation of hydrogen peroxide" . | CHEMICAL ENGINEERING JOURNAL 525 (2025) . |
| APA | Fang, Han-Liang , Xu, Yu-Hang , Jin, Xiang-Min , Long, Hao-Ran , Zhang, Wen-Ni , You, Han-Hui et al. Superior degradation of endocrine disruptors over defective iron pyrites assisted by vacancy-induced disassociation of hydrogen peroxide . | CHEMICAL ENGINEERING JOURNAL , 2025 , 525 . |
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本发明公开一种富氧空位铁钒矿纳米颗粒的制备方法及应用，包括以下步骤：将FeCl3•6H2O和NH4VO3溶解在去离子水中，分别形成溶液A和B；将HCl溶液分别添加到溶液A和B中；在剧烈搅拌下将溶液B加入到溶液A中，随后加入柠檬酸钠；用浓氨水将pH调节至2.0后，将悬浮液转移至高压反应釜中，加热处理，得到富含氧空位的铁钒矿纳米颗粒，其在可见光下具有良好的过硫酸盐活化效果，在5 min内可降解100%的20 mg/L双酚A。该方法操作简单，避免使用大量有机溶剂，氧空位含量可通过合成温度调节，该催化剂在过硫酸盐活化领域具有广阔的应用前景。
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| GB/T 7714 | 钟洲 , 吕健 , 刘祥吉 et al. 一种富氧空位铁钒矿纳米颗粒的制备方法及应用 : CN202310847614.2[P]. | 2023-07-12 . |
| MLA | 钟洲 et al. "一种富氧空位铁钒矿纳米颗粒的制备方法及应用" : CN202310847614.2. | 2023-07-12 . |
| APA | 钟洲 , 吕健 , 刘祥吉 , 徐建刚 , 曹海雷 . 一种富氧空位铁钒矿纳米颗粒的制备方法及应用 : CN202310847614.2. | 2023-07-12 . |
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以磷酸改性咖啡渣生物炭(PABC-700)为吸附剂填充固定床,系统分析进水流速、吸附剂填充高度以及初始浓度对PABC-700固定床动态吸附磺胺嘧啶(SDZ)规律的影响,进而对受SDZ长期选择压力下固定床内微生物抗性及群落变化进行了评估.结果表明,PABC-700固定床对水中SDZ的动态吸附行为符合Yoon-Nelson和Adams-Bohart模型.利用qPCR技术分析了sul1和sul2两种抗性基因的丰度变化,结果表明,固定床长期运行会导致出水中磺胺类抗生素抗性基因的增殖,且随着体系中SDZ浓度的升高,生物炭上sul1及sul2的丰度也呈现出升高趋势,暴露于1.0mg/L磺胺嘧啶组的sul1及sul2表达量可达对照组的1.97及1.53倍.利用MiseqPE300测序对固定床反应器长期运行条件下进出水及生物炭表面的微生物群落结构分析,结果表明,固定床上微生物群落多样性较对照组发生显著衰减,出水与固定床上的细菌群落结构具有显著相关性,且滤后出水中条件致病菌分枝杆菌属的增殖需要引起重视.
Keyword ：
动态吸附 动态吸附 抗生素抗性基因 抗生素抗性基因 生物炭 生物炭 磺胺嘧啶 磺胺嘧啶 选择性 选择性
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| GB/T 7714 | 曾雪玉 , 邓德麒 , 刘康康 et al. 固定床吸附磺胺嘧啶过程中微生物抗性及群落变化 [J]. | 中国环境科学 , 2023 , 43 (06) : 2917-2925 . |
| MLA | 曾雪玉 et al. "固定床吸附磺胺嘧啶过程中微生物抗性及群落变化" . | 中国环境科学 43 . 06 (2023) : 2917-2925 . |
| APA | 曾雪玉 , 邓德麒 , 刘康康 , 胡美丽 , 曹海雷 , 吕健 . 固定床吸附磺胺嘧啶过程中微生物抗性及群落变化 . | 中国环境科学 , 2023 , 43 (06) , 2917-2925 . |
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以茶叶提取液为还原剂，采用原位还原方法绿色合成Ag/Fe_3O_4复合材料，系统表征了复合材料的形貌及组成特性，并对其抑菌性能及机制进行了深入分析。X射线衍射(XRD)、X射线光电子能谱(XPS)表征结果表明：Ag(I)被还原为Ag~0;振动样品磁强计(VSM)测试表明：Ag/Fe_3O_4具有较高的饱和磁化强度；透射电镜(TEM)测试表明：所负载Ag~0粒径在50～100nm之间；红外光谱(FT-IR)测试结果表明：茶叶提取液中的酚羟基起到了桥接金属元素及还原剂的作用。复合材料的抑菌研究表明，Ag/Fe_3O_4对大肠杆菌和金黄色葡萄球菌的生长均有良好的抑制效果，其最低抑菌浓度(MIC)分别为1.76μg/mL和7.04μg/mL。通过碱性磷酸酶(AKP)、核酸、蛋白质的测定，以及扫描电镜(SEM)表征，证实Ag/Fe_3O_4的接触使菌体表面结构坍塌、内陷、甚至分裂，并通过影响菌体细胞壁、细胞膜的通透性，影响其基因的表达，达到抑菌目的。
Keyword ：
抑菌机制 抑菌机制 磁性纳米复合材料 磁性纳米复合材料 绿色合成 绿色合成 银 银
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| GB/T 7714 | 苏添浩 , 刘康康 , 张晓东 et al. Ag/Fe_3O_4纳米复合材料的绿色合成及其抑菌机制 [J]. | 化工新型材料 , 2023 , 51 (03) : 227-233 . |
| MLA | 苏添浩 et al. "Ag/Fe_3O_4纳米复合材料的绿色合成及其抑菌机制" . | 化工新型材料 51 . 03 (2023) : 227-233 . |
| APA | 苏添浩 , 刘康康 , 张晓东 , 龙秀娇 , 陈赛黎 , 曹海雷 et al. Ag/Fe_3O_4纳米复合材料的绿色合成及其抑菌机制 . | 化工新型材料 , 2023 , 51 (03) , 227-233 . |
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The fixed bed was filled with phosphoric acid modified coffee residue biochar (PABC-700) for the dynamic adsorption of sulfadiazine (SDZ) in water. The effects of influent flow rate, adsorbent filling height and initial concentration on the adsorption properties of sulfadiazine were systematically analyzed, and the microbial resistance and community change in the fixed bed under the long-term selective pressure of SDZ were then evaluated. The results showed that the dynamic adsorption behavior of PABC-700fixed bed for SDZ in water conformed to Yoon-Nelson and Adams-Bohart models. The resistance gene abundance changes of sul1 and sul2 according to the results obtained from qPCR showed that the long-term operation of the fixed bed would lead to the proliferation of sulfonamides resistance genes in the effluent. With the increase of SDZ concentration in the system, the abundance of sul1 and sul2 on biochar also showed an increasing trend. The expression of sul1 and sul2 in the group exposed to 1.0mg/L sulfadiazine was 1.97 and 1.53times that of the control group. The microbial community structure on the surface of biochar, as well as the inlet and outlet of the water after the long-term operation were analyzed using Miseq PE300sequencing technology. The results showed that the microbial community diversity on the fixed bed was significantly attenuated compared with the control group, and there was a significant correlation between the purified effluent and the bacterial community structure on the fixed bed biochar. More attention should be paid to the proliferation of conditional pathogenic bacteria Mycobacterium in filtered effluent. © 2023 Chinese Society for Environmental Sciences. All rights reserved.
Keyword ：
Adsorption Adsorption Amides Amides Bacteria Bacteria Effluents Effluents Genes Genes Polymerase chain reaction Polymerase chain reaction Sulfur compounds Sulfur compounds
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| GB/T 7714 | Zeng, Xue-Yu , Deng, De-Qi , Liu, Kang-Kang et al. Microbial resistance and community changes during the adsorption of sulfadiazine through fixed bed [J]. | China Environmental Science , 2023 , 43 (6) : 2917-2925 . |
| MLA | Zeng, Xue-Yu et al. "Microbial resistance and community changes during the adsorption of sulfadiazine through fixed bed" . | China Environmental Science 43 . 6 (2023) : 2917-2925 . |
| APA | Zeng, Xue-Yu , Deng, De-Qi , Liu, Kang-Kang , Hu, Mei-Li , Cao, Hai-Lei , Lü, Jian . Microbial resistance and community changes during the adsorption of sulfadiazine through fixed bed . | China Environmental Science , 2023 , 43 (6) , 2917-2925 . |
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The utilization of photo-assisted persulfate activation for the removal of organic contaminants in water has garnered significant research interest in recent times. However, there remains a lack of clarity regarding specific contributions of light irradiation and catalyst structure in this process. Herein, a photo-assisted peroxymonosulfate (PMS) activation system is designed for the highly efficient degradation of organic contaminants on oxygen vacancy-enriched nolanites (Vo-FVO). Results suggest that the degradation of bisphenol A (BPA) in this system is a nonradical-dominated process via an electron transfer regime, in which VO improves the local electron density and thus facilitates the electron shuttling between BPA and PMS. During BPA degradation, PMS adsorbed at the surface of FVO-180 withdraws electrons near VO and forms FVO-PMS* complexes. Upon light irradiation, photoelectrons effectively restore the electron density around VO, thereby enabling a sustainable electron transfer for the highly efficient degradation of BPA. Overall, this work provides new insights into the mechanism of persulfate activation based on defects engineering in nolanite minerals.
Keyword ：
Catalytic degradation Catalytic degradation Electron transfer Electron transfer Organic contaminant Organic contaminant Oxygen vacancy Oxygen vacancy Peroxymonosulfate activation Peroxymonosulfate activation
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| GB/T 7714 | Liu, Xiangji , Qiao, Xingxing , Yang, Ruqian et al. Mechanism insights into photo-assisted peroxymonosulfate activation on oxygen vacancy-enriched nolanites via an electron transfer regime [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2023 , 652 : 912-922 . |
| MLA | Liu, Xiangji et al. "Mechanism insights into photo-assisted peroxymonosulfate activation on oxygen vacancy-enriched nolanites via an electron transfer regime" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 652 (2023) : 912-922 . |
| APA | Liu, Xiangji , Qiao, Xingxing , Yang, Ruqian , Wei, Dong , Qu, Xinghua , Cao, Hailei et al. Mechanism insights into photo-assisted peroxymonosulfate activation on oxygen vacancy-enriched nolanites via an electron transfer regime . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2023 , 652 , 912-922 . |
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以茶叶提取液为还原剂,采用原位还原方法绿色合成Ag/Fe_(3)O_(4)复合材料,系统表征了复合材料的形貌及组成特性,并对其抑菌性能及机制进行了深入分析。X射线衍射(XRD)、X射线光电子能谱(XPS)表征结果表明:Ag(I)被还原为Ag0;振动样品磁强计(VSM)测试表明:Ag/Fe_(3)O_(4)具有较高的饱和磁化强度;透射电镜(TEM)测试表明:所负载Ag0粒径在50~100nm之间;红外光谱(FT-IR)测试结果表明:茶叶提取液中的酚羟基起到了桥接金属元素及还原剂的作用。复合材料的抑菌研究表明,Ag/Fe_(3)O_(4)对大肠杆菌和金黄色葡萄球菌的生长均有良好的抑制效果,其最低抑菌浓度(MIC)分别为1.76μg/mL和7.04μg/mL。通过碱性磷酸酶(AKP)、核酸、蛋白质的测定,以及扫描电镜(SEM)表征,证实Ag/Fe_(3)O_(4)的接触使菌体表面结构坍塌、内陷、甚至分裂,并通过影响菌体细胞壁、细胞膜的通透性,影响其基因的表达,达到抑菌目的。
Keyword ：
抑菌机制 抑菌机制 磁性纳米复合材料 磁性纳米复合材料 绿色合成 绿色合成 银 银
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| GB/T 7714 | . Ag/Fe_(3)O_(4)纳米复合材料的绿色合成及其抑菌机制 [J]. | 化工新型材料 , 2023 , 51 (3) : 227-233 . |
| MLA | "Ag/Fe_(3)O_(4)纳米复合材料的绿色合成及其抑菌机制" . | 化工新型材料 51 . 3 (2023) : 227-233 . |
| APA | . Ag/Fe_(3)O_(4)纳米复合材料的绿色合成及其抑菌机制 . | 化工新型材料 , 2023 , 51 (3) , 227-233 . |
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The textural properties and surface chemistry of phosphoric acid-modified biochars (PABCs) prepared at different pyrolysis temperatures (500-700 degrees C) were studied based on the results obtained from XRD, SEM, BET, FT-IR, Raman, XPS and elements analyses. PABCs prepared at higher temperatures tended to possess a bigger proportion of microporous structure. The adsorption capacity and initial rate of PABCs for sulfadiazine (SDZ) were notably improved to 139.2 mg/g and 9.66 mg/(g min) as calculated from the Langmuir model. The adsorption equilibrium time was only one quarter of that without modification. The H3PO4 modification was advantageous to produce phosphate and break functional groups to form disordered carbon structure abundant of micropores. The enhancement in the adsorption of SDZ was due to the confinement effect of hydrophobic cavities from the mircoporous structure and the pi-pi electron-donor-acceptor interaction. Specially, PABCs exhibited stable adsorption capacities at a wide pH range (3.0-9.0) or relatively high concentrations of coexisting ions.
Keyword ：
Coffee grounds-derived biochar Coffee grounds-derived biochar Micropore structure Micropore structure Pyrolysis Pyrolysis Sulfadiazine adsorption Sulfadiazine adsorption Surface modification Surface modification
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| GB/T 7714 | Zeng, Xue-Yu , Wang, Yu , Li, Rong-Xin et al. Impacts of temperatures and phosphoric-acid modification to the physicochemical properties of biochar for excellent sulfadiazine adsorption [J]. | BIOCHAR , 2022 , 4 (1) . |
| MLA | Zeng, Xue-Yu et al. "Impacts of temperatures and phosphoric-acid modification to the physicochemical properties of biochar for excellent sulfadiazine adsorption" . | BIOCHAR 4 . 1 (2022) . |
| APA | Zeng, Xue-Yu , Wang, Yu , Li, Rong-Xin , Cao, Hai-Lei , Li, Ya-Feng , Lu, Jian . Impacts of temperatures and phosphoric-acid modification to the physicochemical properties of biochar for excellent sulfadiazine adsorption . | BIOCHAR , 2022 , 4 (1) . |
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