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Fish-hook effect in hydrocyclones: systematic refutation of the measurement artifact hypothesis 水力旋流器中的鱼钩效应:对测量伪影假说的系统反驳
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-02-01 Epub Date: 2026-01-23 DOI: 10.1016/j.apt.2026.105184
M.H. Tyeb , A. Asrar , A.K. Majumder
{"title":"Fish-hook effect in hydrocyclones: systematic refutation of the measurement artifact hypothesis","authors":"M.H. Tyeb ,&nbsp;A. Asrar ,&nbsp;A.K. Majumder","doi":"10.1016/j.apt.2026.105184","DOIUrl":"10.1016/j.apt.2026.105184","url":null,"abstract":"<div><div>The fish-hook effect observed in hydrocyclone partition curves has been debated extensively, with contention over whether it arises out of inherent process dynamics or laser diffraction measurement artifacts. This study addresses the debate through a methodically designed comparison of hydrocyclone, gravity settling, and wet screening separation processes, analyzed under identical laser diffraction protocols across systematically varied refractive index configurations. Wet screening, chosen specifically as a control due to its purely geometric separation mechanism that ideally precludes fish-hook formation, exhibited strictly monotonic partition curves without fish-hooks for all test cases. In contrast, consistent and reproducible<!--> <!-->fish-hook features were seen in both hydrocyclone and gravity settling partition curves across all tested refractive index configurations. These findings firmly established that fish-hooks in partition curves are consequences of genuine process-dependent phenomena, not measurement artifacts. Further analysis showed that real refractive index (RRI) specification critically affected particle size distribution (PSD) measurement, particularly when the specification error is towards the dispersant’s RRI, introducing bimodal artifacts in the PSD and marginally shifting separation cut sizes. Imaginary refractive index (IRI) variations altered ultrafine (&lt;10 μm) characterization which modulated but did not eliminate fish-hooks in hydrocyclone partition curves.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105184"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022861","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
Synergistic effect of Copper(II) ions on the adsorption of ricinoleic acid on the cassiterite surface 铜(II)离子对蓖麻油酸在锡石表面吸附的协同效应
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-02-01 Epub Date: 2026-01-06 DOI: 10.1016/j.apt.2025.105164
Lingpan Du , Jiangli Li , Menglai Wang , Ciyun Chen , Qinbo Cao , Haiyun Xie , Peilun Shen , Dianwen Liu
{"title":"Synergistic effect of Copper(II) ions on the adsorption of ricinoleic acid on the cassiterite surface","authors":"Lingpan Du ,&nbsp;Jiangli Li ,&nbsp;Menglai Wang ,&nbsp;Ciyun Chen ,&nbsp;Qinbo Cao ,&nbsp;Haiyun Xie ,&nbsp;Peilun Shen ,&nbsp;Dianwen Liu","doi":"10.1016/j.apt.2025.105164","DOIUrl":"10.1016/j.apt.2025.105164","url":null,"abstract":"<div><div>The flotation of fine cassiterite (SnO<sub>2</sub>) particles requires efficient collectors. Here, ricinoleic acid (RA) and Cu<sup>2+</sup> were employed to efficiently float SnO<sub>2</sub>. The flotation capacity of this method was studied by using flotation tests, surface examinations, and density functional theory (DFT) calculations. The flotation results imply that the flotation capacity of RA was greater than that of oleic acid at pH 7, which was caused mainly by the greater solubility of RA. The Cu<sup>2+</sup> conditioning further improved the flotation capacity of RA at pH 7. Cu(RA)<sub>2</sub> was produced on the SnO<sub>2</sub> surface. The intermolecular hydrogen bonds between the RA species led to a tighter assembly of Cu(RA)<sub>2</sub>.</div><div>The reaction of Cu<sup>2+</sup> cations with the SnO<sub>2</sub> (110) surface produced a Cu-rich surface, assisting in adsorption of RA. The –COO group of RA bonded with two Cu atoms, generating a bidentate binding structure. The effective hybridization among the O 2p orbitals of the –COO group and Cu orbitals accounted for the strong interaction between the RA collector and the SnO<sub>2</sub> surface. This work extends our knowledge about the role of Cu<sup>2+</sup> during SnO<sub>2</sub> flotation with an RA collector.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105164"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922469","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
Continuous droplet freezing enables stable powder formulation of extracellular vesicles for therapeutic applications 连续液滴冷冻使细胞外囊泡的稳定粉末配方用于治疗应用
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-02-01 Epub Date: 2026-01-09 DOI: 10.1016/j.apt.2026.105174
Tatsuya Fukuta , Masato Miyazaki , Kotone Yoshimura , Rikuto Ihara , Haruhiko Nakamura , Haruka Mogami , Wuxuan Liu , Mayumi Ikeda-Imafuku , Satoshi Kodama , Ko Matsui , Taiki Fujimoto , Kenjirou Higashi , Kazunori Kadota
{"title":"Continuous droplet freezing enables stable powder formulation of extracellular vesicles for therapeutic applications","authors":"Tatsuya Fukuta ,&nbsp;Masato Miyazaki ,&nbsp;Kotone Yoshimura ,&nbsp;Rikuto Ihara ,&nbsp;Haruhiko Nakamura ,&nbsp;Haruka Mogami ,&nbsp;Wuxuan Liu ,&nbsp;Mayumi Ikeda-Imafuku ,&nbsp;Satoshi Kodama ,&nbsp;Ko Matsui ,&nbsp;Taiki Fujimoto ,&nbsp;Kenjirou Higashi ,&nbsp;Kazunori Kadota","doi":"10.1016/j.apt.2026.105174","DOIUrl":"10.1016/j.apt.2026.105174","url":null,"abstract":"<div><div>Extracellular vesicles (EVs) hold great promise as a novel therapeutic modality. While their use as certain formulations has been actively explored, the development of lyophilized EV formulations is essential for ensuring long-term stability and facilitating the clinical translation. However, conventional lyophilization methods often lead to nanoparticle aggregation upon reconstitution, which compromises formulation quality. Herein, we explored a continuous droplet freezing (CDF) approach using a precision droplet generation system, followed by lyophilization, to prepare spherical powder particles containing bovine milk-derived EVs (mEVs). A formulation composed of 0.01 wt% mEVs and 10% trehalose was processed using this CDF approach, followed by drum-type drying. The CDF-based process produced particles with smoother surfaces, higher sphericity, larger Brunauer-Emmett-Teller surface areas, and a lower angle of repose compared to classical tray-type freeze-drying. Notably, the CDF particles retained an amorphous state for over six months at 4°C, whereas the tray-dried particles exhibited crystallinity. The CDF-dried powders showed excellent flowability and redispersibility, with a more monodisperse size distribution upon reconstitution. Furthermore, cellular uptake of mEVs from the CDF powder was comparable to that of untreated mEVs. These findings demonstrate that CDF followed by drum-type lyophilization is a promising technique for producing stable and functional EV powder formulations.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105174"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145922471","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
Mechanics, energy evolution and damage behavior of cemented waste rock-tailings backfill considering waste rock content and particle size distribution 考虑废石掺量和粒径分布的废石尾砂胶结充填体力学、能量演化及损伤行为
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-02-01 Epub Date: 2026-01-28 DOI: 10.1016/j.apt.2026.105181
Cuiping Li , Jun Wu , Chen Hu , Zhenhua Huang
{"title":"Mechanics, energy evolution and damage behavior of cemented waste rock-tailings backfill considering waste rock content and particle size distribution","authors":"Cuiping Li ,&nbsp;Jun Wu ,&nbsp;Chen Hu ,&nbsp;Zhenhua Huang","doi":"10.1016/j.apt.2026.105181","DOIUrl":"10.1016/j.apt.2026.105181","url":null,"abstract":"<div><div>In order to investigate the effects of waste rock content (WRC) and particle size distribution (PSD) on the energy storage and damage evolution of cement waste rock-tailing backfill (CWTB). The CWTB specimens with different PSD and WRC were prepared for uniaxial compression tests. The mechanical properties and energy evolution characteristics of CWTB were analyzed. A novel damage constitutive model considering the compaction stage and the post-peak stage was constructed, and the damage evolution law of CWTB was obtained. The results show that an increase in WRC decreases the energy storage limit of the specimen. In contrast, when the Talbot coefficient is increased, not only the energy storage limit is increased, but also the total energy of the elastic stage is converted more into elastic energy. The reduction of WRC and the increase of the Talbot coefficient help to suppress the conversion of elastic energy to dissipative energy, and the energy storage capacity of the specimen is significantly enhanced. A segmented damage constitutive model considering the compaction and post-peak stages was developed. The new constitutive model can better describe the stress–strain relationship and damage evolution law of backfill. The research results can provide assistance for the stability of the mine.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105181"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074259","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
Numerical study on ignition of pulverized coal and biomass co-firing flames with detailed chemistry 煤粉与生物质共燃火焰点火的数值研究与详细化学
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-02-01 Epub Date: 2026-01-20 DOI: 10.1016/j.apt.2026.105176
Jiangkuan Xing, Ryoichi Kurose
{"title":"Numerical study on ignition of pulverized coal and biomass co-firing flames with detailed chemistry","authors":"Jiangkuan Xing,&nbsp;Ryoichi Kurose","doi":"10.1016/j.apt.2026.105176","DOIUrl":"10.1016/j.apt.2026.105176","url":null,"abstract":"<div><div>In this study, two-dimensional point-particle direct numerical simulations are performed using detailed chemistry to investigate ignition behavior of pulverized coal and biomass co-firing (CBCF) flames. Two biomass blending ratios are considered with a pure coal flame calculated as a reference. The time scales associated with particle physics and reactions are carefully analyzed to elucidate the effect of blending ratio on flame ignition behavior. The results indicate that coal particles exhibit shorter dispersion and heating delays, longer devolatilization delay, and shorter homogeneous volatile ignition delay compared to biomass particles. Three stages, including inert mixing/heating, pre-ignition, and ignition/flame propagation, are identified with different physics dominating each stage. As the blending ratio increases, CBCF flames demonstrate shorter inert mixing/heating times but comparable pre-ignition times due to shorter devolatilization delay of biomass particles, as well as comparable homogeneous ignition delays of blends of coal and biomass volatile. Devolatilization behavior plays a dominant role in the ignition process, and biomass volatile contributes more significantly. Furthermore, the classical concept that ignition kernels occur near the “most-reactive mixture fraction (<span><math><mrow><msub><mrow><mi>Z</mi></mrow><mrow><mi>MR</mi></mrow></msub></mrow></math></span>)” under low scalar dissipation rate remains valid for the CBCF flames. The <span><math><mrow><msub><mrow><mi>Z</mi></mrow><mrow><mi>MR</mi></mrow></msub></mrow></math></span> value is strongly affected by the devolatilization behavior and increases with the blending ratio.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105176"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022867","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
Microencapsulated phase-change materials for advanced anti-icing coatings 先进防冰涂料用微胶囊化相变材料
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-02-01 Epub Date: 2026-01-23 DOI: 10.1016/j.apt.2026.105180
Yongshun Huang , Ce Wang , Wen Li , Yong Zuo , Ping Che , Yongsheng Han
{"title":"Microencapsulated phase-change materials for advanced anti-icing coatings","authors":"Yongshun Huang ,&nbsp;Ce Wang ,&nbsp;Wen Li ,&nbsp;Yong Zuo ,&nbsp;Ping Che ,&nbsp;Yongsheng Han","doi":"10.1016/j.apt.2026.105180","DOIUrl":"10.1016/j.apt.2026.105180","url":null,"abstract":"<div><div>The ice formation on the wind turbine blade surface challenges the energy collection in the winter period. Hence, the anti-icing technique is highly required for energy collection in cold weather. Here, we report a solution to prevent ice formation by coating microencapsulated phase-change materials (MPCMs). In this study, melamine–formaldehyde microcapsules encapsulating n-tetradecane/n-hexadecane core mixtures were prepared via in-situ polymerization, enabling precise phase-change temperature regulation (−11.46°C to −0.47°C) through the composition tuning. Furthermore, these obtained MPCMs were compounded with polytetrafluoroethylene micropowder<!--> <!-->to fabricate a multifunctional coating. The composite coating not only maintains the temperature responsive property but also exhibits outstanding hydrophobicity (static contact angle 151.1°, sliding angle 5.2°). The coating keeps hydrophobicity (contact angle &gt; 140°) even after 80 cycles of wear test. Compared with the uncoated blank surface, the coated surface delays the static icing time by 4.1-fold and 4.5-fold at −8°C and −15°C, respectively. Moreover, the coated surface exhibits self-cleaning capability requiring only trace amounts of water. This combination of MPCMs and superhydrophobic coating provides a promising approach to anti-icing for wind turbine blades.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 2","pages":"Article 105180"},"PeriodicalIF":4.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022862","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
Effect of solidification microstructure in TiAl alloy bars on particle size and composition of powders produced by plasma rotating electrode process TiAl合金棒材凝固组织对等离子体旋转电极法制备粉末粒度和成分的影响
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-01-01 Epub Date: 2025-12-09 DOI: 10.1016/j.apt.2025.105146
Xingbo Yang , Liang Yang , Changshu Xiang , Hui Wang , Nianguang Sun , Weiwei He , Dong Liu , Shuai Xu
{"title":"Effect of solidification microstructure in TiAl alloy bars on particle size and composition of powders produced by plasma rotating electrode process","authors":"Xingbo Yang ,&nbsp;Liang Yang ,&nbsp;Changshu Xiang ,&nbsp;Hui Wang ,&nbsp;Nianguang Sun ,&nbsp;Weiwei He ,&nbsp;Dong Liu ,&nbsp;Shuai Xu","doi":"10.1016/j.apt.2025.105146","DOIUrl":"10.1016/j.apt.2025.105146","url":null,"abstract":"<div><div>Alloy bars of Ti-48Al-2Cr-2Nb with a hyperperitectic solidification microstructure and Ti-46Al-8Nb with a single β solidification microstructure were used as feedstock for the Plasma Rotating Electrode Process (PREP). Under identical conditions, Ti-48Al-2Cr-2Nb powders exhibited a mean particle size of 150.2 μm with a &lt;150 μm yield of 50.2 %, showing decreasing <em>Al</em> and <em>Cr</em> contents and increasing <em>Nb</em> content with particle size. In contrast, Ti-46Al-8Nb powders showed a mean size of 69.6 μm, a &lt;150 μm yield of 93 %, and negligible compositional variation. Feedstock microsegregation was first correlated with particle size and compositional variations. Inhomogeneous melting of hyperperitectic structures produces coarser particles with compositional gradients, while single β solidified alloys yield finer and more uniform powders. High-energy X-ray diffraction revealed the hexagonal structure as disordered α phase rather than ordered α<sub>2</sub> phase. Phase analysis showed γ phase increasing from 27.4 % to 73.2 % in Ti-48Al-2Cr-2Nb and B2 phase from 65.8 % to ∼0 % in Ti-46Al-8Nb with increasing particle size. The evolution of phase fractions and lattice parameters with particle size was systematically investigated. This study deepens the understanding of the PREP atomization mechanism and provides guidance for improving powder yield and exploring phase transformation behavior in rapidly solidified TiAl alloys.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105146"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145733694","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
Influence of side aerations on the initiation of solids circulation and energy supplied in a U-type loop seal of a fluidized bed reactor 侧曝气对流化床反应器u型环封固体循环启动及供能的影响
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-01-01 Epub Date: 2025-12-24 DOI: 10.1016/j.apt.2025.105158
Krissada Namwong , Kritsadang Senawong , Chuan Paengpatsa , Atipong Armatsombat
{"title":"Influence of side aerations on the initiation of solids circulation and energy supplied in a U-type loop seal of a fluidized bed reactor","authors":"Krissada Namwong ,&nbsp;Kritsadang Senawong ,&nbsp;Chuan Paengpatsa ,&nbsp;Atipong Armatsombat","doi":"10.1016/j.apt.2025.105158","DOIUrl":"10.1016/j.apt.2025.105158","url":null,"abstract":"<div><div>The initiation of solids circulation is a critical aspect of fluidized bed reactor operation, governed by the performance of the loop seal. This study aimed to determine the optimal side aeration position in the supply chamber that affects the efficiency of circulation initiation, the solids circulation rate during the initiation phase, and the overall energy consumption of the loop seal. Experiments were conducted using a riser with a cross-sectional area of 100 × 100 mm<sup>2</sup> and a height of 4500 mm, coupled with a U-type loop seal of identical cross-section comprising supply and recycle chambers connected by a 50 mm horizontal passage. Three side aeration ports were installed on the side wall of the supply chamber at different positions: along the centerline of the horizontal passage, at the top wall level, and above the horizontal passage. Silica sand with an average particle diameter of 320 µm was used as the bed material. Results showed that the centerline port facilitated the initiation of solids circulation more effectively than the other positions and yielded the highest solids circulation rate under a constant side aeration flow. Furthermore, the U-type loop seal with both side and bottom aeration required a lower total aeration flow than the conventional loop seal with bottom aeration only, resulting in reduced energy consumption.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105158"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836926","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
Inside Front Cover (Aims & Scope, Editors) 内页封面(Aims & Scope,编辑)
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-01-01 Epub Date: 2026-01-09 DOI: 10.1016/S0921-8831(26)00003-8
{"title":"Inside Front Cover (Aims & Scope, Editors)","authors":"","doi":"10.1016/S0921-8831(26)00003-8","DOIUrl":"10.1016/S0921-8831(26)00003-8","url":null,"abstract":"","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105167"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145920876","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
Engineering oxidative desulfurization of dibenzothiophene under visible light over novel Ag3PO4/g-C3N4/CuInS2 ternary S-scheme photocatalyst 新型Ag3PO4/g-C3N4/CuInS2三元S-scheme光催化剂在可见光下工程氧化脱硫二苯并噻吩
IF 4.2 2区 工程技术
Advanced Powder Technology Pub Date : 2026-01-01 Epub Date: 2025-12-24 DOI: 10.1016/j.apt.2025.105151
Giang T.T. Pham , Hoa T. Vu , Dinh Thai An , Dai Lam Tran , Thi Lan Pham , Tham Thi Pham , Thanh Ngoc Nguyen , Van Thuy Ngo , T.-Thanh-Bao Nguyen , Huan V. Doan , Manh B. Nguyen
{"title":"Engineering oxidative desulfurization of dibenzothiophene under visible light over novel Ag3PO4/g-C3N4/CuInS2 ternary S-scheme photocatalyst","authors":"Giang T.T. Pham ,&nbsp;Hoa T. Vu ,&nbsp;Dinh Thai An ,&nbsp;Dai Lam Tran ,&nbsp;Thi Lan Pham ,&nbsp;Tham Thi Pham ,&nbsp;Thanh Ngoc Nguyen ,&nbsp;Van Thuy Ngo ,&nbsp;T.-Thanh-Bao Nguyen ,&nbsp;Huan V. Doan ,&nbsp;Manh B. Nguyen","doi":"10.1016/j.apt.2025.105151","DOIUrl":"10.1016/j.apt.2025.105151","url":null,"abstract":"<div><div>Fuels containing sulfur compounds are considered the main cause of SO<sub>x</sub> emissions leading to acid rain, so management policies are gradually being tightened to reduce sulfur content in fuels to below 10 ppm or even sulfur-free. However, aromatic compounds containing sulfur in fuels cannot be eliminated by conventional methods. In this study, a third-order S-scheme photocatalyst Ag<sub>3</sub>PO<sub>4</sub>/GCN/CuInS<sub>2</sub> integrated with carbon quantum dots (CQD, AGC-CQD) was successfully synthesized for the first time using an efficient microwave-assisted method. Influence of Ag<sub>3</sub>PO<sub>4</sub> content on the surface area, visible light absorption, electron-hole recombination rate, electron separation ability, and charge transfer within the AGC-CQD was thoroughly investigated. 30 %AGC-CQD material shows the ability to 97.69 % of dibenzothiophene (DBT) removal after 100 min of visible light irradiation, with a reaction rate constant 2.17 times greater than that of the pure 30 %AGC. The impact of various factors, including the amount of Ag<sub>3</sub>PO<sub>4</sub>, O/S ratio, DBT concentration, photocatalyst dosage, and catalyst reusability, on the efficiency of the photocatalytic process was evaluated. The charge transport pathway is determined through electron density and reactive species trapping experiments. These findings demonstrate the high potential for effective application of AGC-CQD photocatalyst in the production process of low-sulfur fuel.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105151"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836927","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
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