Advanced Powder Technology最新文献

Interfacial interaction mechanism between alkali metal ions and cationic/anionic surfactants and insight into low-rank coal flotation

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-16 DOI: 10.1016/j.apt.2024.104640

{"title":"Interfacial interaction mechanism between alkali metal ions and cationic/anionic surfactants and insight into low-rank coal flotation","authors":"","doi":"10.1016/j.apt.2024.104640","DOIUrl":"10.1016/j.apt.2024.104640","url":null,"abstract":"<div>In the low-rank coal flotation process, the modification and adhesion behavior of particles can be reflected by the interaction of the phase interface. Therefore, the interfacial mechanism of alkali metal ions (K+, Na+) in gas-surfactant solution (DTAC, SDS) and the coal-liquid interfaces were investigated by dynamic surface tension and contact angle measurements. The results showed that the salt ions can affect the adsorption kinetic behavior of surfactants at the gas–liquid interface as well as the wetting performance of the solution on coal. Besides, through the interfacial energy and wetting work could judge the tendency of the reactivity and flotability of a solution. In this case, the adsorption experiments, SEM, XPS, probe method and hydrophilicity test were further carried out to verify the surface information of the modified coal. The results illustrated that the DTAC molecule absorbed on coal is realized by the N+–OH− ionic bond, which is firstly proved in the coals modification; while the SDS molecule can be absorbed by O–HO hydrogen bond, which were also proved by the surface free energy analysis. Moreover, the flotability performance of modified coal on the residue solution showed the DTAC could increase the hydrophobicity of the coal, while the SDS-modified coal should be paid attention to the occurrence of hydrophobic tail adsorption.</div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Enhanced photocatalytic performance of (Mg, Cu) Dual-Doped ZnS nanosheets for Solar-Driven water treatment and embedded with PVA polymer membrane for reusability 增强（镁、铜）双掺杂 ZnS 纳米片的光催化性能，用于太阳能驱动的水处理，并嵌入 PVA 聚合物膜以实现可重复使用性

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-13 DOI: 10.1016/j.apt.2024.104654

{"title":"Enhanced photocatalytic performance of (Mg, Cu) Dual-Doped ZnS nanosheets for Solar-Driven water treatment and embedded with PVA polymer membrane for reusability","authors":"","doi":"10.1016/j.apt.2024.104654","DOIUrl":"10.1016/j.apt.2024.104654","url":null,"abstract":"<div>Photocatalysis uses semiconductor materials to solar energy effectively purify to water by eliminating pollutants. Organic Dye degradation serves as a standard to assess the photocatalytic effects of the materials. In this study Mg, Cu dual-doped ZnS nanosheets were synthesized using the coprecipitation method. The impact of the concentration on the structural, morphology, optical, and degradation efficiency was investigated with XRD, XPS, TEM with EDAX, and UV spectroscopy. The pure ZnS and Zn0.98-xCu0.02MgxS (x = 0, 0.01, 0.02) (ZCM1, ZCM2, ZCM3, and ZCM4) nanosheets, exhibited cubic structure with high phase purity. The average crystalline size was calculated as 1.66, 1.60, 1.45, and 1.47 nm for the ZCM1, ZCM2, ZCM3, and ZCM4 nanosheets, respectively. TEM analysis revealed the presence of crumpled nanosheets. The bandgap of the ZCM1, ZCM2, ZCM3, and ZCM4 nanosheets were 3.99, 3.78, 4.03, and 4.09 eV respectively. This study investigated the photocatalytic activity of crystal violet dye when exposed to natural sunlight irradiation. Notably, ZCM3 nanosheets exhibited a high degradation rate of 99 % over 120 min under sunlight. Furthermore, the proposed dye degradation mechanism, effect of dosage, effect of dye variation, reusability, scavenging activity, and hemolytic activity were comprehensively discussed. The nanosheets embedded with the Polyvinyl alcohol (PVA) polymer membrane for reusability.</div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142171615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Inside Front Cover (Aims & Scope, Editors) 封面内页（目标与范围，编辑）

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-12 DOI: 10.1016/S0921-8831(24)00332-7

引用次数: 0

Corrigendum to “Li-doped (K, Na)NbO3 particles with high crystallinity and chemical stability synthesized by molten salt method” [Adv. Powder Technol. 35(9) (2024) 104580] 对 "用熔盐法合成的具有高结晶度和化学稳定性的掺锂（K，Na）NbO3 粒子 "的更正[Adv. Powder Technol.

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-12 DOI: 10.1016/j.apt.2024.104650

引用次数: 0

Full title (Editorial Board Members) 全称（编辑委员会成员）

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-12 DOI: 10.1016/S0921-8831(24)00333-9

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Densification behavior in compaction for Cu/TiB2 composite under electromagnetic impact 电磁冲击下 Cu/TiB2 复合材料在压实过程中的致密化行为

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-12 DOI: 10.1016/j.apt.2024.104653

引用次数: 0

Synthesis of cotton-like FeCoNi-Nd(OH)3 nanoparticles via reactive mechanical milling: Investigating chemical properties for cellular signaling applications 通过反应性机械研磨合成棉状 FeCoNi-Nd(OH)3 纳米粒子：研究细胞信号应用的化学特性

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-11 DOI: 10.1016/j.apt.2024.104651

{"title":"Synthesis of cotton-like FeCoNi-Nd(OH)3 nanoparticles via reactive mechanical milling: Investigating chemical properties for cellular signaling applications","authors":"","doi":"10.1016/j.apt.2024.104651","DOIUrl":"10.1016/j.apt.2024.104651","url":null,"abstract":"<div>In this study, FeCoNi alloy nanoparticles were combined with Nd(OH)3 nanostructures to create unique cotton-like nanoparticles (C-NPs). These C-NPs were synthesized through an accessible, two-step reactive chemical milling process. The nanoparticles originated from a blend of metal chlorides (FeCl2, CoCl2, and NiCl2) and sodium (Na), used as a precursor in the reaction, within a SPEX milling apparatus. The Fe, Co, and Ni were maintained at equal weight percentages (1:1:1). Subsequently, NdCl3 and Na were utilized to facilitate the attachment of Nd(OH)3 nanostructures onto the FeCoNi nanoparticles through a solid-state reaction in the same SPEX milling setup. The Nd content was varied to investigate its effect on the integration of Nd(OH)3 onto the surface of CoNiFe nanoparticles. Electron microscopy revealed the formation of cotton-like nanoparticles, and the distribution of elements was identified using secondary ion mass spectrometry. The CoNiFe alloy and Nd(OH)3 phases were verified by X-ray diffraction analysis. These nanoparticles were internalized into cells via endocytosis, as observed in transmission electron microscopy images after incubation with the BT20 cell line (triple-negative breast cancer), likely due to interactions between –OH groups and the cell membrane. Following this, the cells containing C-NPs underwent photoluminescence studies, revealing two distinct emission peaks at 400 nm, and 486 nm. X-ray photoelectron spectroscopy indicated the presence of various heterostructures within the FeCoNi-Nd(OH)3 complex, which may be responsible for these emission properties.</div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0921883124003273/pdfft?md5=f718cb25be4d16ce1e91415de7f4111b&pid=1-s2.0-S0921883124003273-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142171611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Experimental analysis of combustion characteristics of corn starch dust clouds under the action of unilateral obstacles and machine learning modeling based on PSO-XGBoost 单侧障碍物作用下玉米淀粉尘云燃烧特性的实验分析和基于 PSO-XGBoost 的机器学习建模

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-11 DOI: 10.1016/j.apt.2024.104641

引用次数: 0

Effect of voidage on the smoldering of the mixed dust layer of wood dust and shavings on a hot plate 空隙对热板上木屑和刨花混合粉尘层燃烧的影响

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-11 DOI: 10.1016/j.apt.2024.104643

{"title":"Effect of voidage on the smoldering of the mixed dust layer of wood dust and shavings on a hot plate","authors":"","doi":"10.1016/j.apt.2024.104643","DOIUrl":"10.1016/j.apt.2024.104643","url":null,"abstract":"<div>In the wood processing industry, wood dust commonly mixes with other processing by-products to form piles, which generally have large voidage due to differences in component sizes. It is essential to understand the effect of voidage on the true ignition and smoldering behavior of wood dust layer on hot plates. In this study, wood dust and shavings were selected as experimental materials. The effects of voidage on the minimum ignition temperature of the dust layer (MITL), ignition delay time, and smoldering behaviors were investigated by means of a hot plate test. The results showed that the addition of large-sized shaving particles significantly enhanced the overall voidage of the dust layer. With the increased deposit voidage, the ignition delay time decreased, and smoldering propagation accelerated. When the shavings content was less than 50%, the MITL decreased; however, further addition of shavings significantly increased the MITL. The analysis shows that voidage affects the ignition and smoldering behavior of the dust layer mainly by influencing oxygen transport and heat transfer processes. These findings offer a new insight for the prevention and control of dust fires under real working conditions.</div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142171712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of calcium hypochlorite and carboxymethyl chitosan as combined depressants for selective flotation separation of chalcopyrite from pyrite at low alkalinity 应用次氯酸钙和羧甲基壳聚糖作为联合抑制剂，在低碱度条件下从黄铁矿中选择性浮选分离黄铜矿

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2024-09-11 DOI: 10.1016/j.apt.2024.104649

{"title":"Application of calcium hypochlorite and carboxymethyl chitosan as combined depressants for selective flotation separation of chalcopyrite from pyrite at low alkalinity","authors":"","doi":"10.1016/j.apt.2024.104649","DOIUrl":"10.1016/j.apt.2024.104649","url":null,"abstract":"<div>Flotation separation of copper-sulfur at low alkalinity has attracted soaring interest in the beneficiation of copper sulfide ore. In this work, application of calcium hypochlorite (Ca(ClO)2) and carboxymethyl chitosan (OCMC) as combined depressants for selective flotation separation of chalcopyrite from pyrite was investigated. A maximum recovery difference of 71.35 % between both minerals is observed under the recommended conditions ([Ca(ClO)2] = 60 mg/L, [OCMC] = 400 mg/L and 40 mg/L SBX at pH=8). Besides, the copper-sulfur flotation separation indexes were assessed by the artificial mixed-mineral tests. Results of contact angle measurement, zeta potential and adsorption amount analysis reveal that the combined depressants severely impede the collector adsorption onto pyrite surfaces, and has a light effect on the chalcopyrite. OCMC exhibits a stronger complexing ability on Ca2+ and Fe2+ ions than Cu2+ ions. XPS results confirm that the combined depressant interact with pyrite surfaces intensively, and prompt a deep conversion of S22- and Sn2-/S0 into S2- and SO42- species, as well as a deep transformation of Fe(II)-S into Fe(III)-O/OH on the pyrite surface. ToF-SIMS and thermodynamic calculation results afford the favorable evidence for the selective suppression of the pyrite with added the combined depressant. Thereby the selective oxidation and intense complexation on the pyrite stemming from the combined depressant synergy are responsible for the selective separation of chalcopyrite from pyrite.</div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142171612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0