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学者姓名：孙治荣
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摘要 ：
Bifunctional cathodes have attracted widespread interest in the heterogeneous electro-Fenton (hetero-EF) process. In this study, the bifunctional composite cathode co-modified with N-doped carbon CoFe alloy (CoFe@NC) and carbon nanotubes (CNTs), designated as CoFe@NC-CNTs/CNTs/NF, integrating hydrogen peroxide (H2O2) synthesis and catalysis, was prepared for efficient degradation of atrazine (ATZ) under the near-neutral condition (pHi = 5.9). The morphology properties, crystal structure, microstructures, and elemental composition were determined. The influences of current density, initial pH value, different anions, and water matrix on the removal of ATZ were systematically studied. In the hetero-EF process, high removal efficiencies of ATZ can be achieved over the broad pH range (3-9) under the current density of 4.5 mA cm-2. The removal efficiency of ATZ remained at 90.2 +/- 0.3% after 8 cycles under the near-neutral condition (pHi = 5.9). Radical quenching tests and EPR spectra have verified that both free radical pathways such as superoxide anion (O-2(center dot-)) and hydroxyl radical ((OH)-O-center dot) and non-radical pathway such as singlet oxygen (O-1(2)) contributed to ATZ removal. The degradation pathways and catalytic mechanism were proposed. Toxicity evaluation and Escherichia coli growth test showed that the toxicity gradually decreased during the degradation process. This work provided a new thought for developing an efficient and stable bifunctional cathode to construct an in-situ hetero-EF system for pollutants removal over the wide pH range.
关键词 ：
Atrazine Atrazine Broad pH Broad pH CoFe alloy CoFe alloy Heterogeneous electro-Fenton Heterogeneous electro-Fenton Singlet oxygen Singlet oxygen
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| GB/T 7714 | Sun, Xiuping , Qi, Haiqiang , Sun, Zhirong . Bifunctional nickel foam composite cathode co-modified with CoFe@NC and CNTs for electrocatalytic degradation of atrazine over wide pH range [J]. | CHEMOSPHERE , 2022 , 286 . |
| MLA | Sun, Xiuping 等. "Bifunctional nickel foam composite cathode co-modified with CoFe@NC and CNTs for electrocatalytic degradation of atrazine over wide pH range" . | CHEMOSPHERE 286 (2022) . |
| APA | Sun, Xiuping , Qi, Haiqiang , Sun, Zhirong . Bifunctional nickel foam composite cathode co-modified with CoFe@NC and CNTs for electrocatalytic degradation of atrazine over wide pH range . | CHEMOSPHERE , 2022 , 286 . |
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摘要 ：
Antibiotic contamination has already been one of hazards to aquatic environment due to the abuse of antibiotics. Metal-organic frameworks (MOFs) are known as a kind of promising porous material for solving the environmental deterioration. In this article, the physicochemical and electrochemical properties of a series of porous copper oxide carbon materials (CuOx-C) synthesized by carbonizing Cu-BTC were compared. Due to the suitable carbonization temperature, CuOx-C-550 N, whose geometric structure was similar to Cu-BTC, possessed a multiscale pore structure containing many mesopores and partial macropores in accordance with the pore size distribution curves. More copper/copper oxides were introduced toimproving the electrochemical ability, evidence by XRD, XPS, CV and EIS characterization. Moreover, the degradation of ceftazidime (CAZ) through anodic oxidation was discussed. In AO/CuOx-C-550 N system, the effects of current, solution pH, initial CAZ concentration and Na2SO4 concentration were analyzed. CAZ removal rate reached 100% within 20 min under the optimal condition and a good electrocatalytic ability with 90% CAZ removal after 20 runs indicated a good electrochemical stability of CuOx-C-550 N. Furthermore, the degradation mechanism and pathway of CAZ were proposed. The Cu(II)/Cu(I) oxidation-reduction couples on the anodic surface contribute to the efficiently selective degradation of cephalosporins for CuOx-C-550 N. Overall, this study shows a good method to design and prepare a new MOF derivative for the remediation of aquatic contamination. © 2020 Elsevier Ltd
关键词 ：
Anodic oxidation Anodic oxidation Antibiotics Antibiotics Carbonization Carbonization Copper metallography Copper metallography Copper oxides Copper oxides Degradation Degradation Deterioration Deterioration Metal-Organic Frameworks Metal-Organic Frameworks Organometallics Organometallics Physicochemical properties Physicochemical properties Pore size Pore size Pore structure Pore structure Sodium sulfate Sodium sulfate
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| GB/T 7714 | Huang, Pengfei , Lei, Jiawei , Sun, Zhirong et al. Fabrication of MOF-derivated CuOx-C electrode for electrochemical degradation of ceftazidime from aqueous solution [J]. | Chemosphere , 2021 , 268 . |
| MLA | Huang, Pengfei et al. "Fabrication of MOF-derivated CuOx-C electrode for electrochemical degradation of ceftazidime from aqueous solution" . | Chemosphere 268 (2021) . |
| APA | Huang, Pengfei , Lei, Jiawei , Sun, Zhirong , Hu, Xiang . Fabrication of MOF-derivated CuOx-C electrode for electrochemical degradation of ceftazidime from aqueous solution . | Chemosphere , 2021 , 268 . |
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摘要 ：
Wastewater containing 2,4,6-trichlorophenol (2,4,6-TCP) is highly toxic and causes harmful effects on aquatic ecosystems and human health. In this study, wastewater containing high levels of 2,4,6-TCP was successfully co-metabolized by introducing municipal domestic wastewater (MDW) as the co-catabolic carbon source. The concentration of degraded 2,4,6-TCP increased from 0 to 208.71 mg/L by adjusting the influent MDW volume during a 150-day-long operation. An MDW dose of 500 mL was found optimal, with an average concentration of 250 mgCOD/L. Unlike the long-term experiment, changing the MDW adding mode in a typical cycle further increased the concentration of 2,4,6-TCP removed to 317 mg/L. The main MDW components, such as the sugars, VFAs, and slowly biodegradable organic substances, improved 2,4,6-TCP degradation, achieving a TOC removal efficiency of 90.98% and a dechlorination efficiency of 100%. The MDW level did not change the 2,4,6-TCP degradation rate (μTCP) in a typical cycle compared to the single carbon source, and the μTCP remained at a high level of 50 mg 2,4,6-TCP/h. Macrogenetic analysis demonstrated that MDW addition promoted the growth of 43 bacterial genera (41.49%) responsible for 2,4,6-TCP degradation and intermediates' metabolism. The key genes for 2,4,6-TCP metabolism (pcpA, chqB, mal-r, pcaI, pcaF, and fadA) were detected in the activated sludge, which were distributed among the 43 genera. To conclude, this study proposes a new carbon source for co-metabolism to treat 2,4,6-TCP-polluted wastewater.
关键词 ：
2,4,6-Trichlorophenol 2,4,6-Trichlorophenol Co-metabolism Co-metabolism Metagenomics Metagenomics Mixed carbon source Mixed carbon source Municipal domestic wastewater Municipal domestic wastewater
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| GB/T 7714 | Wang Jianguang , Sun Zhirong . Successful application of municipal domestic wastewater as a co-substrate in 2,4,6-trichlorophenol degradation. [J]. | Chemosphere , 2021 , 280 : 130707 . |
| MLA | Wang Jianguang et al. "Successful application of municipal domestic wastewater as a co-substrate in 2,4,6-trichlorophenol degradation." . | Chemosphere 280 (2021) : 130707 . |
| APA | Wang Jianguang , Sun Zhirong . Successful application of municipal domestic wastewater as a co-substrate in 2,4,6-trichlorophenol degradation. . | Chemosphere , 2021 , 280 , 130707 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
In this paper, nanoscale Cu2O particles was successfully anchored at defect sites of carbon nanotubes (CNTs), which doped on three-dimensional copper foam (CF) electrode (Cu2O@CNTs/CF). The compound as cathode was synthesized via dip-coating and rapid electrodeposition followed by annealing procedure, and conducted in heterogeneous electro-Fenton (EF) system. The Cu2O@CNTs/CF composites electrode enabled activate O-2 to generate H2O2 in situ and further Cu-0/Cu2O synergistic catalysis to produce reactive oxygen species for a broad pH-range via the heterogeneous EF process. Cu-0 on the surface of CF also contributed to the reduction of Cu2+ to Cu+, thereby enhancing the stability of the electrode. The effects of critical parameters such as precursorligand dosage, the initial pH value, initial pollutant concentration and current density on the degradation of the antibiotic sulfamethoxazole (SMX) were investigated. The as-obtained electrode performed both effective catalytic activity and good reusability. Almost 100% removal rate was reached within 75 min over a broad pH range (3 to 11) during the heterogeneous EF process, with the current density of 12 mA cm(-2) and the removal efficiency of SMX decreased by only 9.0% after 8 recycle runs. Furthermore, quenching experiments indicated that hydroxyl radicals (center dot OH) were main species responsible for the SMX oxidation. In addition, the possible degradation pathways of SMX were proposed, which were based on nine identified intermediates. The comprehensivework is elucidated to accelerate the development of the in-situ production of H2O2 during the heterogeneous EF system and provide new insights to achieve high-efficiency degradation of pollutants via copper-based catalytic materials. (C) 2021 Elsevier B.V. All rights reserved.
关键词 ：
Broad pH Broad pH Copper foam Copper foam Cu+/Cu-0 Cu+/Cu-0 Heterogeneous electro-Fenton Heterogeneous electro-Fenton Sulfamethoxazole Sulfamethoxazole
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| GB/T 7714 | Mao, Shiqin , Sun, Xiuping , Qi, Haiqiang et al. CuO nanoparticles anchored on 3D bifunctional CNTs/copper foam cathode for electrocatalytic degradation of sulfamethoxazole over a broad pH range [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2021 , 793 . |
| MLA | Mao, Shiqin et al. "CuO nanoparticles anchored on 3D bifunctional CNTs/copper foam cathode for electrocatalytic degradation of sulfamethoxazole over a broad pH range" . | SCIENCE OF THE TOTAL ENVIRONMENT 793 (2021) . |
| APA | Mao, Shiqin , Sun, Xiuping , Qi, Haiqiang , Sun, Zhirong . CuO nanoparticles anchored on 3D bifunctional CNTs/copper foam cathode for electrocatalytic degradation of sulfamethoxazole over a broad pH range . | SCIENCE OF THE TOTAL ENVIRONMENT , 2021 , 793 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The development of new heterogeneous Cu-based solid catalysts for hydroxyl radical (center dot OH) generation plays a crucial role in degradation of pollutants at neutral pH circumstance. In this work, a Cu-doped graphitic carbon nitride (g-C3N4) complex was synthesized in one-step pyrolysis process using copper chloride dihydrate and dicyandiamide as precursors. The results reveal that after Cu doping, the bulk structure of g-C3N4 was destroyed with fragmentary morphology formation. Besides, Cu-0 and Cu+ were successfully embedded in g-C3N4 sheet. Moreover, amoxicillin (AMX) removal by heterogeneous electro-Fenton process was performed to evaluate the catalytic activity of the Cu-doped g-C3N4. 99.1% AMX removal efficiency was obtained after 60 min electrolysis under neutral pH condition when the current density was 12 mA cm(2) and the catalyst dosage was 0.3 g L-1. Both Cu-0 and Cu+ were stably retained in the Cu-doped g-C3N4 catalyst and AMX removal efficiency reached 91.1%, even after 5 cycles, manifesting the remarkable stability of Cu-doped g-C3N4. Also, Cu-doped g-C3N4 possessed excellent catalytic activities for AMX removal in various waterbodies. According to the catalytic mechanism analysis, the center dot OH was proved to be the primary reactive species for AMX removal in heterogeneous electro-Fenton process. Based on the identification of sixteen different intermediate products, the possible degradation pathways were proposed. This work provides a simple method to synthesize a Cu-based solid catalyst containing stable Cu-0 and Cu+ for degradation of pollutants in wastewater.
关键词 ：
Catalytic activity Catalytic activity Graphitic carbon nitride Graphitic carbon nitride Hydroxyl radical Hydroxyl radical Mechanism Mechanism One-step pyrolysis One-step pyrolysis
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| GB/T 7714 | Pan, Guifang , Sun, Zhirong . Cu-doped g-C3N4 catalyst with stable Cu-0 and Cu+ for enhanced amoxicillin degradation by heterogeneous electro-Fenton process at neutral pH [J]. | CHEMOSPHERE , 2021 , 283 . |
| MLA | Pan, Guifang et al. "Cu-doped g-C3N4 catalyst with stable Cu-0 and Cu+ for enhanced amoxicillin degradation by heterogeneous electro-Fenton process at neutral pH" . | CHEMOSPHERE 283 (2021) . |
| APA | Pan, Guifang , Sun, Zhirong . Cu-doped g-C3N4 catalyst with stable Cu-0 and Cu+ for enhanced amoxicillin degradation by heterogeneous electro-Fenton process at neutral pH . | CHEMOSPHERE , 2021 , 283 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Magnetic CoFe alloy@N-doped graphitic carbon (CoFe@NC) encapsulated in chitosan carbonized microspheres (CoFe@NC/CCM) was synthesized, then coupled with peroxymonosulfate (PMS) for atrazine (ATZ) removal. CoFe@NC derived from Co-Fe Prussian blue analogues were embedded into CCM by the alkaline gelcarbonization process, in which CCM formed a protective layer for CoFe@NC. The morphology, crystal structure, and material composition of CoFe@NC/CCM were characterized. The effects of catalyst dosages, PMS dosages, initial pH, temperature, coexisting anions, natural organic matter (NOM), and different practical water matrices were systematically investigated. The productivity test was performed under the conditions of [PMS] = 0.4 mM, pHi = 5.9, T = 25 degrees C, ATZ = 30 mg/L and [CoFe@NC-600/CCM] = 4 mg/L, the stability upon reuse for 8 days was studied and the accumulated turnover number was determined to be 46.8 after an 8-day cycle. Electron paramagnetic resonance (EPR) technology and radical quenching tests revealed .OH and SO4.- were major radicals, with contribution rates of 49.2% and 42.9%, respectively. Fe0 -> equivalent to FeII <-> equivalent to FeIII and Co0 -> equivalent to CoII <-> equivalent to CoIII redox cycles were involved in the catalytic reaction. The toxicity effect of transformation products (TPs) on activated sludge was also evaluated. Based on quantitative structure-activity relationship model prediction, the comprehensive toxicity of ATZ and TPs was analyzed and compared by the toxicity estimation software tool. Results showed that most TPs toxicity decreased or disappeared. This work proposes an environmentally friendly and easy-to-recycle heterogeneous catalyst to remove refractory organics by activating PMS.
关键词 ：
Chitosan Chitosan CoFe alloy CoFe alloy Peroxymonosulfate Peroxymonosulfate Prussian blue analogues Prussian blue analogues Toxicity assessment Toxicity assessment
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| GB/T 7714 | Sun, Xiuping , Qi, Haiqiang , Mao, Shiqin et al. Atrazine removal by peroxymonosulfate activated with magnetic CoFe alloy@N-doped graphitic carbon encapsulated in chitosan carbonized microspheres [J]. | CHEMICAL ENGINEERING JOURNAL , 2021 , 423 . |
| MLA | Sun, Xiuping et al. "Atrazine removal by peroxymonosulfate activated with magnetic CoFe alloy@N-doped graphitic carbon encapsulated in chitosan carbonized microspheres" . | CHEMICAL ENGINEERING JOURNAL 423 (2021) . |
| APA | Sun, Xiuping , Qi, Haiqiang , Mao, Shiqin , Sun, Zhirong . Atrazine removal by peroxymonosulfate activated with magnetic CoFe alloy@N-doped graphitic carbon encapsulated in chitosan carbonized microspheres . | CHEMICAL ENGINEERING JOURNAL , 2021 , 423 . |
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摘要 ：
The metal organic framework derived materials (CoFe2O4@NC) activated peroxymonosulfate (PMS) to degrade Norfloxacin (NOR) owing to the characteristics of high surface area (109.658 m2 g-1) and abundant mesoporous structure. The characterization results demonstrated that the optimal ratio of bimetal and of bimetallic to organic ligands (M/O) had good crystal structure and stability (Fe/Co = 3:1, M/O = 2:1). Moreover, NOR (10 mg L-1) removal of 98.78% was achievable in 60 min with an optimum concentration of PMS (0.32 mM) and dosage of CoFe2O4@NC (0.1 g L-1). The radical quenching results suggested that SO4·-, ·OH and 1O2 functioned in the presence of the system certificated by XPS spectra. The presence of Cl- and CO32-/HCO3- promoted the catalyst reaction. The recoverability revealed high removal efficiency of NOR of 93.55% could still be maintained. Furthermore, four pathways of NOR degradation were proposed, including dehydroxylation, defluorination, quinolone group conversion and piperazine ring transformation, which were attributed to the synergy of reactive oxygen species. The above results highlight that the method is of great significance to the practical application of heterogeneous catalysts in aqueous solutions.
关键词 ：
Metal organic framework Metal organic framework Norfloxacin Norfloxacin Oxidative degradation Oxidative degradation Peroxomonosulfate Peroxomonosulfate Radical Radical Water treatment Water treatment
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| GB/T 7714 | Fan Yan , Liu Yanru , Hu Xiang et al. Preparation of metal organic framework derived materials CoFe2O4@NC and its application for degradation of norfloxacin from aqueous solutions by activated peroxymonosulfate. [J]. | Chemosphere , 2021 , 275 : 130059 . |
| MLA | Fan Yan et al. "Preparation of metal organic framework derived materials CoFe2O4@NC and its application for degradation of norfloxacin from aqueous solutions by activated peroxymonosulfate." . | Chemosphere 275 (2021) : 130059 . |
| APA | Fan Yan , Liu Yanru , Hu Xiang , Sun Zhirong . Preparation of metal organic framework derived materials CoFe2O4@NC and its application for degradation of norfloxacin from aqueous solutions by activated peroxymonosulfate. . | Chemosphere , 2021 , 275 , 130059 . |
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摘要 ：
Etched graphite felt (EGF) was successfully fabricated using in situ CoOX etching process and used as a cathode to degrade diuron in the electro-Fenton (E-Fenton) process. The graphite felt prepared using the in situ CoOX etching process could markedly enhance the electrochemical properties with high electroactive surface area and rapid electron transfer capacity. Due to the high content of defects and porous structure, EGF electrode exhibited superior performance with high yield of hydrogen peroxide and rapid regeneration capacity of Fe2+, achieving 100% removal of diuron (20 mg/L) at -0.7 V/SCE within 50 min. In addition, the stability of the EGF cathode showed no significant decay in the performance after 35 cycles. EGF electrode had achieved good degradation effect for different pollutants, such as atrazine, amoxicillin, atenolol and 2, 4, 6-trichlorophenol. In three runs, the EGF cathode showed low Co leaching (< 1 ppm). Moreover, the possible degradation pathways of diuron were proposed by analyzing the intermediates in this work. The results obtained in this work highlight the potential of EGF electrode for use as an E-Fenton cathode.
关键词 ：
Defects Defects Degradation pathway Degradation pathway Electro-fenton Electro-fenton Graphite felt Graphite felt Porous structure Porous structure
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| GB/T 7714 | Qi, Haiqiang , Sun, Xiuping , Sun, Zhirong . Porous graphite felt electrode with catalytic defects for enhanced degradation of pollutants by electro-Fenton process [J]. | CHEMICAL ENGINEERING JOURNAL , 2021 , 403 . |
| MLA | Qi, Haiqiang et al. "Porous graphite felt electrode with catalytic defects for enhanced degradation of pollutants by electro-Fenton process" . | CHEMICAL ENGINEERING JOURNAL 403 (2021) . |
| APA | Qi, Haiqiang , Sun, Xiuping , Sun, Zhirong . Porous graphite felt electrode with catalytic defects for enhanced degradation of pollutants by electro-Fenton process . | CHEMICAL ENGINEERING JOURNAL , 2021 , 403 . |
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摘要 ：
一种用于非均相电芬顿体系的氧化亚铜/碳纳米管/泡沫铜复合电极的制备及应用，涉及电化学水处理技术领域。本发明以泡沫铜为基体，先通过浸渍提拉法使羧基化碳纳米管均匀分布于泡沫铜的三维多孔结构中，然后采用两电极体系在其表面进行电沉积，最后放置于马弗炉中高温煅烧制备得到新型氧化亚铜/碳纳米管/泡沫铜复合电极。本发明方法制作简易，方便可控，反应体系稳定，无需催化剂的回收，无后续污染问题，在中性条件下能够很好的降解有机污染物废水，具有良好的应用前景。
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| GB/T 7714 | 孙治荣 , 毛诗琴 . 一种用于非均相电芬顿体系的氧化亚铜/碳纳米管/泡沫铜复合电极的制备及应用 : CN202011273641.6[P]. | 2020-11-14 . |
| MLA | 孙治荣 et al. "一种用于非均相电芬顿体系的氧化亚铜/碳纳米管/泡沫铜复合电极的制备及应用" : CN202011273641.6. | 2020-11-14 . |
| APA | 孙治荣 , 毛诗琴 . 一种用于非均相电芬顿体系的氧化亚铜/碳纳米管/泡沫铜复合电极的制备及应用 : CN202011273641.6. | 2020-11-14 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种应用于非均相电芬顿降解有机废水的活性炭负载型催化剂的制备，属于电化学水处理技术领域。本发明以粒状活性炭为载体，将铁铜双金属共沉淀在活性炭表面及孔隙内，在氮气条件下煅烧制备出以CuFe2O4为活性组分的双金属催化剂，该法制备的固相催化剂具有较好的催化效果，具有较好的稳定性，降低了铁离子的溶出率，可进行回收循环使用。
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| GB/T 7714 | 孙治荣 , 李梦娅 . 一种应用于非均相电芬顿降解有机废水的活性炭负载型催化剂的制备 : CN202010028202.2[P]. | 2020-01-10 . |
| MLA | 孙治荣 et al. "一种应用于非均相电芬顿降解有机废水的活性炭负载型催化剂的制备" : CN202010028202.2. | 2020-01-10 . |
| APA | 孙治荣 , 李梦娅 . 一种应用于非均相电芬顿降解有机废水的活性炭负载型催化剂的制备 : CN202010028202.2. | 2020-01-10 . |
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