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学者姓名：王永好
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Abstract ：
随着锂离子电池(LIBs)需求量的急剧增长,必将产生大量废旧LIBs,如若处置不当,将带来严重的环境污染问题.废旧LIBs的正极材料中含有大量稀缺有价金属,对这些金属进行回收会产生环境和经济的双重效益.相较于传统的正极材料中金属组分的分离纯化回收技术,正极材料直接再生的策略因其具有工艺简单、能耗低、回收周期短、产品附加值高等优势而备受关注.本文综述了共沉淀法、溶胶-凝胶法、固相烧结法、水热法、离子热/熔盐法和电化学修复法6种废旧LIBs正极材料直接再生技术及其优缺点.其中共沉淀法和溶胶-凝胶法因其相对复杂的步骤、较高的设备要求和试剂成本,在工业化应用中具有一定的局限性;固相烧结法、水热法、离子热/熔盐法和电化学修复法因其便捷性和经济性,具有巨大的发展机会.同时展望了废旧LIBs正极材料直接再利用的前景和发展趋势,旨在为废旧LIBs回收领域研究提供参考.
Keyword ：
回收 回收 正极材料 正极材料 直接再生 直接再生 锂离子电池(LIBs) 锂离子电池(LIBs)
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| GB/T 7714 | 李红彦 , 谢书涵 , 张燕如 et al. 废旧锂离子电池正极材料直接再生技术研究进展 [J]. | 化工进展 , 2024 , 43 (9) : 5207-5216 . |
| MLA | 李红彦 et al. "废旧锂离子电池正极材料直接再生技术研究进展" . | 化工进展 43 . 9 (2024) : 5207-5216 . |
| APA | 李红彦 , 谢书涵 , 张燕如 , 王永净 , 王永好 , 吕源财 et al. 废旧锂离子电池正极材料直接再生技术研究进展 . | 化工进展 , 2024 , 43 (9) , 5207-5216 . |
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Spinel-type complex oxides are considered promising electrocatalysts, nevertheless, the mechanism of electrocatalytic reduction of O 2 to generate H 2 O 2 and to activate H 2 O 2 still needs to be further explored. In this work, the dependence of selectivity of electrocatalytic O 2 to generate H 2 O 2 and the efficiency of activating H 2 O 2 of defect sites in ZnFe 2 O 4 /CNT composites were investigated based on experimental data and characterization. Firstly, the ZnFe 2 O 4 /CNT composites were obtained by hydrothermal method combined with high-temperature calcination. Then phenol was used as a typical pollutant to evaluate its electrocatalytic performance. The results indicated that ZnFe 2 O 4 /CNT can degrade nearly 100% phenol of 20 mg/L and appears excellent TOC removal efficiency. Impedance experiments showed that the existence of CNT significantly promoted the electron transfer for ZnFe 2 O 4 /CNT. Raman spectroscopy and XPS analysis disclosed that the defect degree of CNT as well as oxygen vacancies of ZnFe 2 O 4 in the ZnFe 2 O 4 /CNT composites were higher than those of the individual CNT and ZnFe 2 O 4 , greatly facilitating the adsorption of O 2 . Consequently, more O 2 was reduced electrocatalytically to H 2 O 2 via the 2e process. Free radical quenching experiments and Fenton experiments showed that homogeneous and heterogeneous activation jointly promoted the conversion of H 2 O 2 to center dot OH. This work provides a strategy for the design of efficient electrocatalysts with spinel structures.
Keyword ：
Electrocatalytic oxygen reduction Electrocatalytic oxygen reduction Organic pollutant degradation Organic pollutant degradation Oxygen vacancy Oxygen vacancy
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| GB/T 7714 | Wang, Yonghao , Lu, Zhenghao , Wu, Shuang et al. Boosting electrocatalytic performance of ZnFe2O4/CNT via synergy of CNT defect and oxygen vacancies [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (3) . |
| MLA | Wang, Yonghao et al. "Boosting electrocatalytic performance of ZnFe2O4/CNT via synergy of CNT defect and oxygen vacancies" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 3 (2024) . |
| APA | Wang, Yonghao , Lu, Zhenghao , Wu, Shuang , Zou, Zhiwei , Zhang, Xinying , Wang, Yongjing . Boosting electrocatalytic performance of ZnFe2O4/CNT via synergy of CNT defect and oxygen vacancies . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (3) . |
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The presence of polyethylene terephthalate (PET) microplastics (MPs) in waters has posed considerable threats to the environment and humans. In this work, a heterogeneous electro-Fenton-activated persulfate oxidation system with the FeS2-modified carbon felt as the cathode (abbreviated as EF-SR) was proposed for the efficient degradation of PET MPs. The results showed that i) the EF-SR system removed 91.3 ± 0.9 % of 100 mg/L PET after 12 h at the expense of trace loss (< 0.07 %) of [Fe] and that ii) dissolved organics and nanoplastics were first formed and accumulated and then quickly consumed in the EF-SR system. In addition to the destruction of the surface morphology, considerable changes in the surface structure of PET were noted after EF-SR treatment. On top of the emergence of the O-H bond, the ratio of C-O/C=O to C-C increased from 0.25 to 0.35, proving the rupture of the backbone of PET and the formation of oxygen-containing groups on the PET surface. With the verified involvement and contributions of SO4•- and •OH, three possible paths were proposed to describe the degradation of PET towards complete mineralization through chain cleavage and oxidation in the EF-SR system. © 2024 Elsevier B.V.
Keyword ：
Electro-Fenton Electro-Fenton Hydroxyl radical Hydroxyl radical Microplastics Microplastics Polyethylene terephthalate Polyethylene terephthalate Sulfate radical Sulfate radical
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| GB/T 7714 | Lin, Y. , Zhang, Y. , Wang, Y. et al. Efficient degradation and mineralization of polyethylene terephthalate microplastics by the synergy of sulfate and hydroxyl radicals in a heterogeneous electro-Fenton-activated persulfate oxidation system [J]. | Journal of Hazardous Materials , 2024 , 478 . |
| MLA | Lin, Y. et al. "Efficient degradation and mineralization of polyethylene terephthalate microplastics by the synergy of sulfate and hydroxyl radicals in a heterogeneous electro-Fenton-activated persulfate oxidation system" . | Journal of Hazardous Materials 478 (2024) . |
| APA | Lin, Y. , Zhang, Y. , Wang, Y. , Lv, Y. , Yang, L. , Chen, Z. et al. Efficient degradation and mineralization of polyethylene terephthalate microplastics by the synergy of sulfate and hydroxyl radicals in a heterogeneous electro-Fenton-activated persulfate oxidation system . | Journal of Hazardous Materials , 2024 , 478 . |
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电催化CO_2还原转变成合成气是一种有前途的解决CO_2污染的方法.本工作在合成钴基金属有机框架材料ZIF-67的过程中引入Ag~+，通过调控Co/Ag物质的量的比和煅烧温度合成一系列的CoAg共负载的氮碳材料（CoAg(a:b)-N-C），并进行电催化还原CO_2的性能研究.X射线衍射仪（XRD）和X射线光电子能谱分析（XPS）测试表明，金属Co和Ag主要以单质的形式负载在碳基质上，部分以金属氮键（M-N）的形式存在.透射电子显微镜（TEM）表明，部分金属单质被碳材料包裹，从而有效防止金属颗粒在使用过程中发生团聚.线性扫描伏安法（LSV）测试表明CoAg(a:b)-N-C呈现出高于Co负载氮碳材料（Co-N-C）的电催化还原CO_2的活性，其中CoAg(1∶1)-N-C-900在-0.53 V(vs.RHE）下产物CO的法拉第效率（FE）为45%,H_2的FE为26%，此时CO/H_2比例也达到1.73；产物的FE表明Co/Ag物质的量的比、煅烧温度和还原电位等都会对CO/H_2比例产生影响，其中Co/Ag对CO/H_2比例的调控范围更大，可达0.43～1.73.机理分析表明，Ag的引入提高了CoAg(1∶1)-N-C-900的导电性和对CO_2及中间体CO~*的吸附能力，因而最终提高了材料的电催化还原CO_2的活性.本研究表明，CoAg(a:b)-N-C是一种有潜力的电催化CO_2转化为合成气的材料.
Keyword ：
CO_2还原 CO_2还原 合成气 合成气 电催化 电催化 金属负载的氮碳材料 金属负载的氮碳材料
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| GB/T 7714 | 明旺 , 杨凌寒 , 柯汝福 et al. CoAg共负载的氮碳电催化还原CO_2的研究 [J]. | 环境科学学报 , 2023 , 43 (06) : 192-202 . |
| MLA | 明旺 et al. "CoAg共负载的氮碳电催化还原CO_2的研究" . | 环境科学学报 43 . 06 (2023) : 192-202 . |
| APA | 明旺 , 杨凌寒 , 柯汝福 , 卢铮浩 , 王永好 . CoAg共负载的氮碳电催化还原CO_2的研究 . | 环境科学学报 , 2023 , 43 (06) , 192-202 . |
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Arsenic existed concomitantly with minerals containing precious or non-ferrous metals, in which arsenic -containing wastewater (ACW) is inevitably generated during the process of smelting. In the treatment of ACW, the precipitation method using sulphide is widely used, but the resulting arsenic sulphide slag poses a risk of secondary pollution. In this work, a reduction strategy was developed to transform arsenic sulphide slag into elementary arsenic under hydrothermal conditions by using sodium formate as the reductant, with the aim to treat the slag and recycle As. The experimental results show that As(0) can be obtained by one-step hydrothermal reduction by sodium formate at temperature of 200 celcius and pH 4, and the purity of elementary arsenic produced under the optimum conditions is higher than 90%. Mechanism analyses reveal that the reduction process of As2S3 to As(0) experiences two steps, where amorphous As2S3 primary particles first transform and crystallize into partially reductive AsS in a bulk size, and then AsS is further reduced into As(0) through a collapse process to form small particles. This work provides a recycling strategy for the efficient conversion of arsenic sulphide slag to As(0) for potential applications.
Keyword ：
Arsenic sulphide slag Arsenic sulphide slag Hydrothermal method Hydrothermal method Recycle Recycle Reduction reaction Reduction reaction
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| GB/T 7714 | Wang, Yonghao , Liu, Youmei , Shi, Jian et al. Treatment and recycling of arsenic slag by hydrothermal reduction of As2S3 to As(0) [J]. | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2023 , 174 : 933-940 . |
| MLA | Wang, Yonghao et al. "Treatment and recycling of arsenic slag by hydrothermal reduction of As2S3 to As(0)" . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 174 (2023) : 933-940 . |
| APA | Wang, Yonghao , Liu, Youmei , Shi, Jian , Li, Mingyang , Wang, Yongjing , Zhang, Jing . Treatment and recycling of arsenic slag by hydrothermal reduction of As2S3 to As(0) . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2023 , 174 , 933-940 . |
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Electrocatalytic CO2 reduction to syngas is a promising method for solving the problem of CO2 pollution. In this work，Ag+ was introduced during the synthesis of cobalt-based metal-organic frameworks ZIF-67 used as precursors，and a series of CoAg co-loaded nitrogen-carbon materials （CoAg （a：b） -N-C） were synthesized by adjusting the Co/Ag molar ratio and calcination temperature. X-ray diffraction （XRD） and X-ray photoelectron spectroscopy （XPS） characterizations indicated that the Co and Ag nanoparticles were mainly loaded on the carbon matrix in the form of elementary substances，and some metal element existed by forming chemical bonds between transition metal and N elements （M-N）. Transmission electron microscopy （TEM） further verified that some metal nanoparticles were wrapped by the carbon material，thereby effectively preventing the metal nanoparticles from agglomerating during use. Linear sweep voltammetry （LSV） tests indicated that CoAg （a：b） -N-C exhibited higher electrocatalytic CO2 reduction activity than Co-N-C. The Faraday efficiencies （FE） of CO and H2 for CoAg （1∶1） -N-C-900 at -0.53 V （vs.RHE） were 45% and 26%，respectively，and the CO/H2 ratio was 1.73. The FE indicated that the Co/Ag molar ratio，calcination temperature and reduction potential could affect the CO/H2 ratio and the CO/H2 ratio was 0.43~1.73 by adjusting the Co/Ag ratio. The mechanism analysis revealed that the introduction of Ag facilitated the electron transport and improved the adsorption ability towards CO2 and intermediate CO*，ultimately improving the electrocatalytic reduction activity of CoAg （1∶1） -N-C-900 towards CO2. This work indicates that CoAg （a：b） -N-C is a promising material for electrocatalytic CO2 reduction into syngas. © 2023 Science Press. All rights reserved.
Keyword ：
CO2 reduction CO2 reduction electrocatalysis electrocatalysis metal-loaded nitrogen-carbon materials metal-loaded nitrogen-carbon materials syngas syngas
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| GB/T 7714 | Ming, W. , Yang, L. , Ke, R. et al. Study on electrocatalytic reduction of CO2 by CoAg co-loaded nitrogen-carbon materials; [CoAg 共负载的氮碳电催化还原 CO2的研究] [J]. | Acta Scientiae Circumstantiae , 2023 , 43 (6) : 192-202 . |
| MLA | Ming, W. et al. "Study on electrocatalytic reduction of CO2 by CoAg co-loaded nitrogen-carbon materials; [CoAg 共负载的氮碳电催化还原 CO2的研究]" . | Acta Scientiae Circumstantiae 43 . 6 (2023) : 192-202 . |
| APA | Ming, W. , Yang, L. , Ke, R. , Lu, Z. , Wang, Y. . Study on electrocatalytic reduction of CO2 by CoAg co-loaded nitrogen-carbon materials; [CoAg 共负载的氮碳电催化还原 CO2的研究] . | Acta Scientiae Circumstantiae , 2023 , 43 (6) , 192-202 . |
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In this work, an upconversion luminescence (UCL) nanosensor for fast detection of ferric ion (Fe3+) and phosphate ion (Pi) is developed based on the inner-filter effect (IFE) between NaYF4:Yb/Er upconversion nanoparticles (UCNPs) and Fe3+-hypocrellin B (HB) complex. Fe3+-HB complex has strong absorption band (450-650 nm), which overlaps with the green emission peak of UCNPs at 545 nm. By adding Fe3+ and Pi, the UCNPs-HB system produces the red-shift change of absorption spectrum, which leads to the "on-off-on" process of IFE. So, with the specific recognition ability of HB for Fe3+ and the competitive complexation of Pi for Fe3+, the proposed nanosensor utilizes the UCL change to achieve the detection of the targets. For the detections of Fe3+, the linear range is 10-600 mu M with a limit of detection (LOD) of 2.62 mu M, and for Pi, the linear range is 5-100 mu M with a LOD of 1.25 mu M. The results for selectivity, precision, and recovery test are also satisfactory. Furthermore, the real sample detection shows that the proposed nanaosensor has a great potential in environmental and biological systems.Graphical AbstractAn upconversion luminescence (UCL) nanosensor based on the inner-filter effect (IFE) between upconversion nanoparticles (UCNPs) and Fe3+-hypocrellin B (HB) complex for the detection of Fe3+ and phosphate ion has been proposed, which is promising to be a convenient and sensitive assay for monitoring Fe3+ and phosphate ion in different environments and biological systems.
Keyword ：
Fe3+ Fe3+ Hypocrellin B Hypocrellin B Inner-filter effect Inner-filter effect Phosphate ion Phosphate ion Upconversion nanoparticles Upconversion nanoparticles
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| GB/T 7714 | Han, Luodan , Chen, Zhiwei , Yu, Chunxiao et al. Upconversion luminescence nanosensor for detection of Fe3+ and phosphate ion based on the inner-filter effect [J]. | ANALYTICAL AND BIOANALYTICAL CHEMISTRY , 2023 , 415 (29-30) : 7139-7150 . |
| MLA | Han, Luodan et al. "Upconversion luminescence nanosensor for detection of Fe3+ and phosphate ion based on the inner-filter effect" . | ANALYTICAL AND BIOANALYTICAL CHEMISTRY 415 . 29-30 (2023) : 7139-7150 . |
| APA | Han, Luodan , Chen, Zhiwei , Yu, Chunxiao , Tang, Keren , Wang, Yonghao , Sun, Weiming et al. Upconversion luminescence nanosensor for detection of Fe3+ and phosphate ion based on the inner-filter effect . | ANALYTICAL AND BIOANALYTICAL CHEMISTRY , 2023 , 415 (29-30) , 7139-7150 . |
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The chromium (Cr) pollution of soil has recently gained a lot of attention for the demand of environmental protection. One of its main resources is from the landfill of the chromium containing sludge (CCS) that produces from reduction-precipitation treatment of the Cr(VI) wastewater. In this work we provide an improved alkaline oxidation calcination (AOC) treatment for CCS, which achieves high Cr recovery efficiency at relatively low calcination temperature and oxygen-rich conditions. The leaching risk of the final residue is much reduced compared to the conventional calcination. It reveals that by using air flow the oxidation efficiency is effectively improved to a value of near to similar to 90 % at 450 degrees C. The thermal analyses of the reaction suggest that Cr (III) in CCS transforms to chromite at the temperature range of 340-450 degrees C, which ensure the subsequent oxidation. On the other hand, it reveals that at higher temperature ( 500 degrees C) it will produce Ca-Fe oxides which are confirmed to be dissolved in the leachate of the toxicity test. The concentration of Cr (III) increases obviously, which could be associated with the release of Cr(III) that doped into Ca-Fe oxides as solid solution. The transformations of the CCS components during the AOC process are depicted in detail. The method proposed here enables high oxidation efficiency of CCS and meanwhile avoids the environmental risk of final residue.
Keyword ：
Calcination Calcination Chromium containing sludge Chromium containing sludge Cr(III) oxidation Cr(III) oxidation Oxygen-rich Oxygen-rich Recovery Recovery
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| GB/T 7714 | Lin, Weibin , Xu, Yushan , Wu, Shuang et al. Oxygen-rich and moderate/low temperature calcination treatment of chromium containing sludge for high efficient Cr recovery and toxicity reduction [J]. | SURFACES AND INTERFACES , 2023 , 43 . |
| MLA | Lin, Weibin et al. "Oxygen-rich and moderate/low temperature calcination treatment of chromium containing sludge for high efficient Cr recovery and toxicity reduction" . | SURFACES AND INTERFACES 43 (2023) . |
| APA | Lin, Weibin , Xu, Yushan , Wu, Shuang , Qiu, Zhiwei , Yao, Hon , Wang, Yongjing et al. Oxygen-rich and moderate/low temperature calcination treatment of chromium containing sludge for high efficient Cr recovery and toxicity reduction . | SURFACES AND INTERFACES , 2023 , 43 . |
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Electrocatalytic reduction of nitrate to ammonia is an effective method for the recycling of NO3--N in the field of nitrate polluted water treatment. In this work, Co-N-C was prepared in this work by pyrolysis of Co-based metal organic framework at 700 degrees C and it can achieve 100 % selectivity to ammonia under the optimum experiment conditions. Impressively, no harmful nitrite generated in the reduction process because the reduction rate constant of Co-N-C for NO2- -N is higher than that of NO3- -N. Experiment results show that the chemical adsorption rather than electrostatic adsorption dominated among Co-N-C and free NO3- , which is significant for the subsequent electronic reduction process. Mechanism analysis indicated the active hydrogen (H*) reduction mechanism is predominate for Co-N-C but the direct electron mechanism is predominate for Co-C during the reduction from NO3- to NO2- . While for Co-N-C and Co-C, the subsequent reduction of NO3 to NH4+ was conducted by the direct electron mechanism. The present work not only explores high performance for the selectively electrocatalytic reduction from nitrate to ammonia but also promote new inspiration for the preparation of other Co-based functional materials for reducing the production of nitrite.
Keyword ：
Ammonia synthesis Ammonia synthesis Nitrate electroreduction Nitrate electroreduction Nitrate pollution Nitrate pollution The active hydrogen (H*) reduction The active hydrogen (H*) reduction
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| GB/T 7714 | Liu, Miao , Lu, Zhenghao , Yang, Linghan et al. Co-N bond promotes the H* pathway for the electrocatalytic reduction of nitrate (NO3RR) to ammonia [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2023 , 11 (3) . |
| MLA | Liu, Miao et al. "Co-N bond promotes the H* pathway for the electrocatalytic reduction of nitrate (NO3RR) to ammonia" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 11 . 3 (2023) . |
| APA | Liu, Miao , Lu, Zhenghao , Yang, Linghan , Gao, Renmin , Zhang, Xinying , Wang, Yongjing et al. Co-N bond promotes the H* pathway for the electrocatalytic reduction of nitrate (NO3RR) to ammonia . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2023 , 11 (3) . |
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硫化物沉淀法是最常用的处理含砷废水的方法之一,但该方法会产生大量的无定形硫化砷渣,砷渣中的砷元素在微生物和pH值等环境因素的影响下,容易重新释放到环境中引起二次污染.因此本文选取硫化砷作为研究对象,借鉴含砷废水的处理思路,将硫化砷在氧化性条件下转化成化学性质和结构稳定的臭葱石,同时回收单质硫,单质硫的回收率为90%左右,最终实现无定形硫化砷的稳定化处理.实验结果表明,最优的实验条件是水热温度和时间分别为120℃和10 h,最佳pH值为3,最佳的Fe/As摩尔比为1.2:1;在上述实验条件下,硫化砷能够一步直接转化成臭葱石,转化率达90%以上.该方法有效地减化了常见的硫化砷渣处理所涉及的溶解-调...
Keyword ：
硫化砷渣 硫化砷渣 硫单质 硫单质 稳定化 稳定化 臭葱石 臭葱石
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| GB/T 7714 | 时坚 , 李明洋 , 王永净 et al. 硫化砷渣一步水热矿化成臭葱石和单质硫的研究 [J]. | 环境化学 , 2022 , 41 (02) : 591-599 . |
| MLA | 时坚 et al. "硫化砷渣一步水热矿化成臭葱石和单质硫的研究" . | 环境化学 41 . 02 (2022) : 591-599 . |
| APA | 时坚 , 李明洋 , 王永净 , 刘峰 , 王永好 , 张静 . 硫化砷渣一步水热矿化成臭葱石和单质硫的研究 . | 环境化学 , 2022 , 41 (02) , 591-599 . |
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