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学者姓名：刘明华
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Abstract ：
Modified sludge biochar, recognized for its notable economic and environmental benefits, demonstrates potential as an effective catalyst for peroxydisulfate (PDS) activation. Nevertheless, the specific mechanisms underlying its catalytic performance require more comprehensive investigation. In this study, a modified biochar (TSBC) doped with oxygen (O) and nitrogen (N) atoms was synthesized from sewage sludge and tannin extract, which significantly enhanced the activation of PDS for the degradation of sulfamethoxazole (SMX). The TSBC/PDS system demonstrated robust performance for SMX degradation, achieving over 90% efficiency over a wide pH range (3-10). Subsequent quenching experiments demonstrated that TSBC predominantly catalyzed PDS to generate O21, which effectively degraded SMX via a non-radical pathway. The O- and N-containing functional groups in TSBC were identified as the primary catalytic sites. Besides, density functional theory (DFT) calculations revealed that the incorporation of graphitic N significantly improved the adsorption capacity of PDS on the TSBC surface. Furthermore, based on the identification of intermediates and theoretical calculations, SMX was degraded mainly by two different pathways: S-N cleavage and O21 oxidation. This study offers a foundational framework for the targeted modification of sludge biochar, thereby expanding its applications.
Keyword ：
degradation mechanism degradation mechanism peroxydisulfate peroxydisulfate sludge biochar sludge biochar sulfamethoxazole sulfamethoxazole
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| GB/T 7714 | He, Yuting , Lin, Jiantao , Yang, Yuchuan et al. Enhanced Peroxydisulfate (PDS) Activation for Sulfamethoxazole (SMX) Degradation by Modified Sludge Biochar: Focusing on the Role of Functional Groups [J]. | WATER , 2024 , 16 (3) . |
| MLA | He, Yuting et al. "Enhanced Peroxydisulfate (PDS) Activation for Sulfamethoxazole (SMX) Degradation by Modified Sludge Biochar: Focusing on the Role of Functional Groups" . | WATER 16 . 3 (2024) . |
| APA | He, Yuting , Lin, Jiantao , Yang, Yuchuan , Liu, Minghua , Liu, Yifan . Enhanced Peroxydisulfate (PDS) Activation for Sulfamethoxazole (SMX) Degradation by Modified Sludge Biochar: Focusing on the Role of Functional Groups . | WATER , 2024 , 16 (3) . |
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光响应性吸附材料对污染物的光控释放性能，对发展吸附材料的绿色再生具有重要的意义。以纤维素为原料，偶氮苯衍生物为功能单体，以典型农药残留2,4-D为模板，采用表面引发原子转移自由基聚合（SI-ATRP）制备光响应纤维素印迹吸附剂（Cell-AB-MIP）。通过单因素实验对材料的制备条件进行优选，采用多种表征手段对材料结构和性能进行分析。结果表明：Cell-AB-MIP表面含有丰富的官能团（—COOH,N=N等），对2,4-D具有较高的特异性识别作用；偶氮苯基团的引入使得Cell-AB-MIP具备优异的光再生性能。经过紫外光照射后，Cell-AB-MIP上的偶氮苯基团将从反式构型转变为顺式构型，从而改变吸附剂对污染物的吸附亲和力，实现光控条件下的清洁脱附。在甲醇介质中光照解吸效率可达72.22%，经过5次光循环后对2,4-D的吸附百分比仍可达到83.47%;SEM及EA分析结果证实了吸附剂经紫外光照射后污染物可从吸附剂表面脱离，完成吸附剂的再生过程。
Keyword ：
2 2 4-D 4-D 光响应 光响应 分子印迹 分子印迹 纤维素 纤维素 绿色再生 绿色再生
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| GB/T 7714 | 王璐颖 , 邱越洺 , 张睿 et al. 光响应纤维素基印迹吸附材料的制备及光再生性能 [J]. | 材料工程 , 2024 , 52 (02) : 180-189 . |
| MLA | 王璐颖 et al. "光响应纤维素基印迹吸附材料的制备及光再生性能" . | 材料工程 52 . 02 (2024) : 180-189 . |
| APA | 王璐颖 , 邱越洺 , 张睿 , 许平凡 , 刘以凡 , 林春香 et al. 光响应纤维素基印迹吸附材料的制备及光再生性能 . | 材料工程 , 2024 , 52 (02) , 180-189 . |
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采用纤维素/杨梅单宁复合气凝胶(CBT)为载体，用浸渍和原位还原法制备铁负载纤维素/单宁吸附剂(Fe-CBT)，使用扫描电镜、傅里叶红外光谱和X射线能谱等手段对其表征，研究了三种典型氟喹诺酮类(FQs)抗生素诺氟沙星(NOR)、盐酸洛美沙星(LOM)和盐酸左氧氟沙星(LVX)的静态吸附性能。结果表明：共存阳离子Na~+、K~+、Mg~(2+)和Ca~(2+)都对吸附过程有明显的干扰。吸附过程是自发进行的放热反应，主要为单分子层吸附，而化学吸附是主要的限速步骤。准二级和Langmuir模型能很好地拟合这种吸附行为。这种吸附剂在298 K对NOR、LOM和LVX的最大理论吸附量分别达到99.07、74.17和40.14 mg/g。NaOH和NaCl对Fe-CBT都表现出较优的洗脱效果，用NaOH和NaCl溶液4次再生后Fe-CBT对NOR的吸附能力仍高于70%。Fe-CBT对FQs的去除，主要是静电引力、表面络合、氢键和π-π堆积间的协同作用造成的。
Keyword ：
单宁 单宁 吸附 吸附 有机高分子材料 有机高分子材料 氟硅诺酮类抗生素 氟硅诺酮类抗生素 纤维素复合气凝胶 纤维素复合气凝胶 铁负载 铁负载
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| GB/T 7714 | 翁鑫 , 李琦琪 , 杨桂芳 et al. 铁负载纤维素/单宁吸附剂的制备及其对氟硅诺酮类抗生素的吸附性能 [J]. | 材料研究学报 , 2024 , 38 (02) : 92-104 . |
| MLA | 翁鑫 et al. "铁负载纤维素/单宁吸附剂的制备及其对氟硅诺酮类抗生素的吸附性能" . | 材料研究学报 38 . 02 (2024) : 92-104 . |
| APA | 翁鑫 , 李琦琪 , 杨桂芳 , 吕源财 , 刘以凡 , 刘明华 . 铁负载纤维素/单宁吸附剂的制备及其对氟硅诺酮类抗生素的吸附性能 . | 材料研究学报 , 2024 , 38 (02) , 92-104 . |
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The production of isolated metallic nanoparticles with multifunctionalized properties, such as size and shape, is crucial for biomedical, photocatalytic, and energy storage or remediation applications. This study investigates the initial particle formations of gold nanoparticles (AuNPs) bioproduced in the cyanobacteria Anabaena sp. using high-resolution transmission electron microscopy images for digital image analysis. The developed method enabled the discovery of cerium nanoparticles (CeNPs), which were biosynthesized in the cyanobacteria Calothrix desertica. The particle size distributions for AuNPs and CeNPs were analyzed. After 10 h, the average equivalent circular diameter for AuNPs was 4.8 nm, while for CeNPs, it was approximately 5.2 nm after 25 h. The initial shape of AuNPs was sub-round to round, while the shape of CeNPs was more roundish due to their amorphous structure and formation restricted to heterocysts. The local PSDs indicate that the maturation of AuNPs begins in the middle of vegetative cells and near the cell membrane, compared to the other regions of the cell.
Keyword ：
Anabaena sp. Anabaena sp. biorecovery biorecovery biosynthesis biosynthesis Calothrix desertica Calothrix desertica digital image analysis digital image analysis TEM TEM
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| GB/T 7714 | Fritz, Melanie , Chen, Xiaochen , Yang, Guifang et al. Gold Nanoparticles Bioproduced in Cyanobacteria in the Initial Phase Opened an Avenue for the Discovery of Corresponding Cerium Nanoparticles [J]. | MICROORGANISMS , 2024 , 12 (2) . |
| MLA | Fritz, Melanie et al. "Gold Nanoparticles Bioproduced in Cyanobacteria in the Initial Phase Opened an Avenue for the Discovery of Corresponding Cerium Nanoparticles" . | MICROORGANISMS 12 . 2 (2024) . |
| APA | Fritz, Melanie , Chen, Xiaochen , Yang, Guifang , Lv, Yuancai , Liu, Minghua , Wehner, Stefan et al. Gold Nanoparticles Bioproduced in Cyanobacteria in the Initial Phase Opened an Avenue for the Discovery of Corresponding Cerium Nanoparticles . | MICROORGANISMS , 2024 , 12 (2) . |
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Developing the transition metal catalysts with high reactivity for the sulfate radical (SO4 -center dot) based advanced oxidation processes (SR-AOPs) has been attracting numerous attentions. To improve the peroxymonosulfate (PMS) activation process mediated by Co-based catalysts, a vanadium-cobalt bimetallic catalyst (V@CoO) was fabricated by modification vanadium through a simple solvothermal method. The pollutants degradation experiments showed that the obtained V@CoO exhibited much higher performance on PMS activation (5.55-8.33 times larger of apparent rate constants) than pure CoO, and the V@CoO/PMS system could quickly degrade various organic contaminants within 5 min under the attack of both radicals (SO4 -center dot and O2-center dot) and non-radicals (1O2). The density functional theory (DFT) calculations and electrochemical tests revealed that the enhancing mechanism of V modification involved four aspects: (i) promoting the PMS adsorption on the surface of V@CoO; (ii) enhancing the electron transfer efficiency between V@CoO and PMS; (iii) activating PMS with V3+ and V4+ species; (iv) accelerating the circulation of Co2+ and Co3+, leading to the promotion on the production of reactive oxygen species (ROS). Furthermore, the V@CoO/PMS system also exhibited satisfactory stability in a broad pH range and good efficiency in the presence of co-existing components (HCO3-, NO3-, PO43- , Cl- and HA) in water. This study will provide new insights to designing high-performance, environment-friendly bimetal catalysts and some basis for the remediation of organic contaminants with SR-AOPs.
Keyword ：
Co-based catalyst Co-based catalyst Degradation Degradation Organic pollutants Organic pollutants Peroxymonosulfate activation Peroxymonosulfate activation V modification V modification
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| GB/T 7714 | Jiang, Yanting , Weng, Xin , Hu, Yihui et al. Enhanced peroxymonosulfate (PMS) activation process mediated by vanadium modified CoO catalyst for rapid degradation of organic pollutants: Insights into the role of V [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (2) . |
| MLA | Jiang, Yanting et al. "Enhanced peroxymonosulfate (PMS) activation process mediated by vanadium modified CoO catalyst for rapid degradation of organic pollutants: Insights into the role of V" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 2 (2024) . |
| APA | Jiang, Yanting , Weng, Xin , Hu, Yihui , Lv, Yuancai , Yu, Zhendong , Liu, Yifan et al. Enhanced peroxymonosulfate (PMS) activation process mediated by vanadium modified CoO catalyst for rapid degradation of organic pollutants: Insights into the role of V . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (2) . |
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Developing adsorbents with high performance and long service life for effective extracting the trace organochlorine pesticides (OCPs) from real water is attracting numerous attentions. Herein, a self-standing covalent organic framework (COF-TpPa) membrane with fiber morphology was successfully synthesized by using electrospun nanofiber membranes as template and employed as solid-phase microextraction (SPME) coating for ultra-high sensitivity extraction and analysis of trace OCPs in water. The as-synthesized COF-TpPa membrane exhibited a high specific surface area (800.83 m(2) g(-1)), stable nanofibrous structure, and excellent chemical and thermal stability. Based on the COF-TpPa membrane, a new SPME analytical method in conjunction with gas chromatography-mass spectrometry (GC-MS) was established. This proposed method possessed favorable linearity in concentration of 0.05-2000 ng L-1, high sensitivity with enrichment factors ranging from 2175 to 5846, low limits of detection (0.001-0.150 ng L-1), satisfactory precision (RSD < 10 %), and excellent repeatability (>150 cycles), which was better than most of the reported works. Additionally, the density functional theory (DFT) calculations and XPS results demonstrated that the outstanding enrichment performance of the COF-TpPa membrane was owing to synergistic effect of pi-pi stacking effects, high specific surface area and hydrogen bonding. This work will expect to extend the applications of COF membrane to captures trace organic pollutants in complex environmental water, as well as offer a multiscale interpretation for the design of effective adsorbents.
Keyword ：
Covalent organic framework nanofibrous Covalent organic framework nanofibrous Direct immersion solid-phase microextraction Direct immersion solid-phase microextraction Gas chromatography-mass spectrometry Gas chromatography-mass spectrometry membrane membrane Organochlorine pesticides Organochlorine pesticides
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| GB/T 7714 | Lin, Chunxiang , Weng, Yufang , Lin, Yule et al. Porous covalent organic framework nanofibrous membrane for excellent enrichment and ultra-high sensitivity detection of trace organochlorine pesticides in water [J]. | JOURNAL OF CHROMATOGRAPHY A , 2024 , 1721 . |
| MLA | Lin, Chunxiang et al. "Porous covalent organic framework nanofibrous membrane for excellent enrichment and ultra-high sensitivity detection of trace organochlorine pesticides in water" . | JOURNAL OF CHROMATOGRAPHY A 1721 (2024) . |
| APA | Lin, Chunxiang , Weng, Yufang , Lin, Yule , Liu, Yifan , Li, Xiaojuan , Lv, Yuancai et al. Porous covalent organic framework nanofibrous membrane for excellent enrichment and ultra-high sensitivity detection of trace organochlorine pesticides in water . | JOURNAL OF CHROMATOGRAPHY A , 2024 , 1721 . |
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An annual production of about 500 million tons of household food waste (HFW) has been documented, resulting in significant implications for human health and the environment in the absence of appropriate treatment. The anaerobic fermentation of HFW in an open system offers the potential to recover high value-added products, lactic acid (LA), thereby simultaneously addressing waste treatment and enhancing resource recovery efficiency. Most of LA fermentation studies have been conducted under mesophilic and thermophilic conditions, with limited research on the production of LA through anaerobic fermentation under hyperthermophilic conditions. This study aimed to produce LA through anaerobic fermentation from HFW under hyperthermophilic conditions (70 +/- 1 degrees C), while varying pH values (5.0 +/- 0.1, 7.0 +/- 0.1, and 9.0 +/- 0.1), and compare the results with LA production under mesophilic (35 +/- 1 degrees C) and thermophilic (52 +/- 1 degrees C) conditions. The findings of this study indicated that the combination of hyperthermophilic conditions and a neutral pH (pH7_70) yielded the highest concentration of LA, measuring at 17.75 +/- 1.51 g/L. The mechanism underlying the high yield of LA at 70 degrees C was elucidated through the combined analysis of organics dissolution, enzymes activities, and 16S rRNA microbiome sequencing.
Keyword ：
Anaerobic fermentation Anaerobic fermentation Household food waste Household food waste Hyperthermophilic condition Hyperthermophilic condition Lactic acid Lactic acid Lactobacillus Lactobacillus
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| GB/T 7714 | Song, Liang , Cai, Chenhang , Lin, Chunxiang et al. Enhanced lactic acid production from household food waste under hyperthermophilic conditions: Mechanisms and regulation [J]. | WASTE MANAGEMENT , 2024 , 178 : 57-65 . |
| MLA | Song, Liang et al. "Enhanced lactic acid production from household food waste under hyperthermophilic conditions: Mechanisms and regulation" . | WASTE MANAGEMENT 178 (2024) : 57-65 . |
| APA | Song, Liang , Cai, Chenhang , Lin, Chunxiang , Lv, Yuancai , Liu, Yifan , Ye, Xiaoxia et al. Enhanced lactic acid production from household food waste under hyperthermophilic conditions: Mechanisms and regulation . | WASTE MANAGEMENT , 2024 , 178 , 57-65 . |
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In this research endeavor, we report the successful synthesis of an aminosulfonic-based ceramic additive, HLDSA, was prepared by replacing part of phenol with HLDLP, a depolymerization product of hydrolysis lignin, through Co@C metal catalysts in the synergistic alkali -catalyzed depolymerization of hydrolysis lignin to achieve highvalue lignin utilization. The preparation and application conditions of the depolymerized hydrolysis lignin HLDLP and its modified product HLDSA were studied, together with a brief analysis of their mechanism of action. During application of ceramic additive, the HLDSA showed a rather excellent dispersing and flexural strength performance, with a minimum slurry outflow time of 20.81 s and a maximum flexural strength of 2.79 MPa, which was a significant improvement over that of the blank sample (59.29 s and 1.77 MPa). Meanwhile, HLDSA was contrasted with other 8 ceramic additives that are widely available on the market. The application performance of HLDSA was also better than that other ceramic additives on the market, indicating that HLDSA has a promising application.
Keyword ：
Catalytic depolymerization Catalytic depolymerization Ceramic additive Ceramic additive Dispersion agent Dispersion agent Hydrolyzed lignin Hydrolyzed lignin Reinforcing agent Reinforcing agent
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| GB/T 7714 | Lin, Yunzhi , Wang, Weilin , Zeng, Qibin et al. Co@C synergistic alkali-catalyzed depolymerization of hydrolyzed lignin for the preparation of multifunctional ceramic additives [J]. | CERAMICS INTERNATIONAL , 2024 , 50 (9) : 14054-14066 . |
| MLA | Lin, Yunzhi et al. "Co@C synergistic alkali-catalyzed depolymerization of hydrolyzed lignin for the preparation of multifunctional ceramic additives" . | CERAMICS INTERNATIONAL 50 . 9 (2024) : 14054-14066 . |
| APA | Lin, Yunzhi , Wang, Weilin , Zeng, Qibin , Guo, Hong , Liu, Minghua . Co@C synergistic alkali-catalyzed depolymerization of hydrolyzed lignin for the preparation of multifunctional ceramic additives . | CERAMICS INTERNATIONAL , 2024 , 50 (9) , 14054-14066 . |
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以纤维素为原料,在Na OH/尿素/H2O溶解体系中通过交联作用将橡椀单宁固化在纤维素基体上,制得固化橡椀单宁纤维素基气凝胶(VTCA).通过SEM-EDS、FT-IR、XRD等对VTCA进行表征,并研究其对水溶液中Ag(I)的吸附行为.结果表明,VTCA具有明显的三维网格多孔结构,孔隙率达到97.95%,在较宽的p H范围内(1～8)对Ag(I)均保持较高的吸附效率(>75%).吸附过程符合拟二级动力学模型和Langmuir吸附等温线模型,温度升高有利于吸附,最高理论吸附量为147.2mg/g.吸附还原研究机理表明,VTCA主要通过静电吸引和螯合作用将Ag(I)吸附到其表面,并通过单宁结构上的酚羟基将其原位还原为Ag0,证明VTCA具有良好的吸附还原性能,能够实现对水体中Ag(I)的回收.
Keyword ：
Ag(I) Ag(I) 吸附 吸附 橡椀单宁 橡椀单宁 纤维素基气凝胶 纤维素基气凝胶 还原 还原
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| GB/T 7714 | 陈颖 , 林昱灵 , 吕源财 et al. 固化单宁纤维素基气凝胶吸附还原Ag(I)行为研究 [J]. | 中国环境科学 , 2024 , 44 (04) : 2083-2092 . |
| MLA | 陈颖 et al. "固化单宁纤维素基气凝胶吸附还原Ag(I)行为研究" . | 中国环境科学 44 . 04 (2024) : 2083-2092 . |
| APA | 陈颖 , 林昱灵 , 吕源财 , 刘以凡 , 林春香 , 叶晓霞 et al. 固化单宁纤维素基气凝胶吸附还原Ag(I)行为研究 . | 中国环境科学 , 2024 , 44 (04) , 2083-2092 . |
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Biochar derived from sludge is recognized for its sustainable and cost-effective role in advanced oxidation processes, yet its restricted catalytic capacity poses significant challenges. In this work, nitrogen (8.43 at%) and sulfur (1.39 at%) co-doped biochar (ML-SDBC) featuring a large surface area of 161.14 m2/g was synthesized by the pyrolysis of sewage sludge and sulfonated lignin without external dopants. In the synthesis of ML-SDBC, graphitic nitrogen and thiophene sulfur were efficiently integrated into the carbon framework. Furthermore, the resulting biochar notably outperformed sludge-derived biochar (SDBC) in activating peroxymonosulfate (PMS) for sulfadiazine (SDZ) degradation, achieving a 31.9% higher removal rate within 120 min and exhibiting a rate constant (kobs) of 1.73x10- 2 min-1, effectively tripling the efficiency compared to that of SDBC-driven processes. The degradation rate consistently exceeded 85% across a wide pH range of 3-9. Mechanistic analysis exhibited that degradation processes involved radical and non-radical pathways, with 1O2 playing a prominent role. Furthermore, density functional theory (DFT) calculations revealed that the catalytic potential in ML-SDBC would benefit from the synergistic interaction between graphitic nitrogen and thiophene sulfur. This study presents a novel synthesis of heteroatom-doped biochar from waste, offering a sustainable solution to antibiotic pollution and waste management challenges.
Keyword ：
Biochar Biochar Biomass Biomass Catalytic oxidation Catalytic oxidation Heteroatoms doping Heteroatoms doping
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| GB/T 7714 | He, Yuting , Yang, Yuchuan , Ye, Xiaoxia et al. Enhanced persulfate activation for sulfadiazine degradation by N, S self-doped biochar from sludge and sulfonated lignin: Emphasizing the roles of graphitic nitrogen and thiophene sulfur [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (3) . |
| MLA | He, Yuting et al. "Enhanced persulfate activation for sulfadiazine degradation by N, S self-doped biochar from sludge and sulfonated lignin: Emphasizing the roles of graphitic nitrogen and thiophene sulfur" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 3 (2024) . |
| APA | He, Yuting , Yang, Yuchuan , Ye, Xiaoxia , Lv, Yuancai , Liu, Yifan , Liu, Minghua . Enhanced persulfate activation for sulfadiazine degradation by N, S self-doped biochar from sludge and sulfonated lignin: Emphasizing the roles of graphitic nitrogen and thiophene sulfur . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (3) . |
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