Clay Minerals最新文献

{"title":"Efficient degradation of tetracycline <i>via</i> iron(II,III) oxide nanoparticle-activated hydrogen peroxide: mechanisms and performance","authors":"Xu Cao, Kunlei Wang, Fei Long, Zhanli Chen, Ping Zhang, Baoqing Zeng, Longyong Wu","doi":"10.1180/clm.2025.10017","DOIUrl":"https://doi.org/10.1180/clm.2025.10017","url":null,"abstract":"Abstract Magnetite-enriched mining tailings are a cost-effective and abundant catalytic material with inherent magnetic recyclability. Yet their practical application in catalysis is often constrained by their limited surface area and sluggish reaction kinetics. To address these issues, we developed a facile one-step co-precipitation method to synthesize a magnetic nano-Fe 3 O 4 (MNP) catalyst that exhibits enhanced surface reactivity for efficient activation of H 2 O 2 towards tetracycline (TC) degradation. The system achieved complete (100%) removal of TC at an initial concentration of 20 mg L –1 within 90 min and demonstrated robust catalytic performance across weakly acidic to neutral pH conditions. Mechanistic investigations confirmed that ⋅OH is the primary reactive oxygen species involved, with ⋅O 2 ⁻ and 1 O 2 providing supplementary contributions to the degradation. Remarkably, the intrinsic magnetic properties ensured efficient MNP catalyst recovery. This work provides a sustainable and scalable wastewater treatment strategy, leveraging mining tailings as a cost-effective resource to treat wastewater while also providing economic and environmental benefits.","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"60 4","pages":"296-306"},"PeriodicalIF":0.0,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/BB37B63FC305AAB169A469B7DC0711D8/S0009855825100174a.pdf/div-class-title-efficient-degradation-of-tetracycline-via-iron-ii-iii-oxide-nanoparticle-activated-hydrogen-peroxide-mechanisms-and-performance-div.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147888486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring reverse silicate weathering across geological time: a review","authors":"Andre Baldermann, Santanu Banerjee, Stefan Löhr, Maxim Rudmin, Laurence N. Warr, Arpita Chakraborty","doi":"10.1180/clm.2024.27","DOIUrl":"https://doi.org/10.1180/clm.2024.27","url":null,"abstract":"Abstract Marine clay mineral authigenesis, referred to as reverse (silicate) weathering, is one of the first-order controls on seawater pH through the generation of acidity and thus plays a significant role in controlling carbon cycling between marine sediments, oceans and the atmosphere over geological timescales. Reverse weathering is mainly regulated by the rates of silicate and carbonate weathering on the continents, the reactivity of detritus supplied to the oceans and the rates of seafloor weathering. These processes provide essential dissolved components (e.g. K + , Mg 2+ , Ca 2+ , Si(OH) 4 , Al 3+ , Fe 2+/3+ ) to the marine porewater inventory that cause authigenic clay minerals, such as odinite, glauconite, celadonite and greenalite, to form close to the sediment–seawater interface. Such clay mineral reactions impact the sedimentary cycling versus sequestration of chemical elements, importantly Si, Fe, Mg and K, and consequently contribute to the fluctuations in climate and seawater composition recorded in marine archives over geological time. This review explores the links between reverse silicate weathering and the climate system across geological timescales and provides estimates of the elemental uptake fluxes associated with modern-day clay mineral authigenesis. Novel isotope proxies (e.g. δ 41 K and δ 30 Si) and promising new dating techniques (e.g. in situ Rb/Sr geochronology) provide improved constraints on the timing, kinetics and environmental significance of clay mineral reactions on the ocean floor. We also consider recent geoengineering developments linked to reverse weathering reactions, such as ongoing attempts to reduce atmospheric CO 2 concentrations via marine alkalinity enhancement and the application of marine clay mineral-based slow-release fertilizers to soils to optimize nutrient availability.","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"60 1","pages":"1-27"},"PeriodicalIF":0.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/21DCC1C320E9C5F4D9C660AFF8E7E964/S000985582400027Xa.pdf/div-class-title-exploring-reverse-silicate-weathering-across-geological-time-a-review-div.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dispersant-assisted rotating liquid film reactor separation strategy for low-grade palygorskite purification with improved dye absorption performance","authors":"Qihui Wang, Xiaoli Liu, Chao Jiang, Xingpeng Wang, Linlin Wu, Huiyu Li, Huiyu Li, Weiliang Tian, Weiliang Tian, Yongjun Feng","doi":"10.1180/clm.2024.31","DOIUrl":"https://doi.org/10.1180/clm.2024.31","url":null,"abstract":"Abstract Palygorskite (Pal) shows great potential for physical, chemical and biological uses due to its colloidal, catalytic and adsorption properties. Pal mines, however, are facing the challenge of low-grade materials (5–15%), making it difficult to use Pal in emerging fields such as new materials, environmental protection and health. Therefore, there is an urgent need to develop an efficient method for separating and purifying Pal to obtain high purity levels. Hence, we have developed a dispersant-assisted rotating liquid film reactor separation strategy based on sodium hexametaphosphate as the dispersant. This strategy utilizes the double electron layer of Pal and the density difference between impurities to achieve effective disaggregation and purification of Pal bundles through the promotion of repulsive driving effects. Under optimal conditions, the purity of Pal can be increased from less than 10% to over 80%. This research presents a novel approach to the efficient refining of low-grade Pal. The crudely purified Pal’s adsorption capacity for methylene blue increased from 84.2 to 256.4 mg g –1 .","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"59 4","pages":"325-336"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphological features of halloysite nanotubes (HNTs) as revealed by various microscopies","authors":"N. Gray-Wannell, P. Cubillas, Z. Aslam, P. Holliman, H. C. Greenwell, R. Brydson, E. Delbos, L-J. Strachan, M. Fuller, S. Hillier","doi":"10.1180/clm.2023.37","DOIUrl":"https://doi.org/10.1180/clm.2023.37","url":null,"abstract":"","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"4 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138944864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The surface characteristics of natural heulandites/clinoptilolites with different extra-framework cations","authors":"F. Esenli, Bala Ekinci Şans, Burcu Erdoğan, Ahmet Sirkecioğlu","doi":"10.1180/clm.2023.34","DOIUrl":"https://doi.org/10.1180/clm.2023.34","url":null,"abstract":"","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"30 47","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138946916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterisation of refractory bricks from selected Cameroonian kaolinites","authors":"Pountouenchi Amadou, Njoya André, Mbey Jean Aimé, Mache Jacque Richard, Njoya Dayirou, Yongue Fouateu Rose, Njopwouo Daniel, N. Fagel, P. Pilate, Laurent Van Parys","doi":"10.1180/clm.2023.32","DOIUrl":"https://doi.org/10.1180/clm.2023.32","url":null,"abstract":"","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"112 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139209443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of the clayey sediments in the environment of exposed mudflats on the western Dead Sea shore","authors":"S. Shoval","doi":"10.1180/clm.2023.33","DOIUrl":"https://doi.org/10.1180/clm.2023.33","url":null,"abstract":"The retreat of the Dead Sea and the lowering of the base level in recent decades led to the exposure of the littoral clay sediments on the shore, the occurrence of exposed mudflats and the development of ground subsidence along strips (\"subsidence strips\") and clustered","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"227 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139242271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of Phase-Change Microcapsules with Illite as Filler and Their Applications in Foaming Materials","authors":"Ming Li, Shuhua Zhang, Weijun Liu, Binyan Liu, Yu Wang","doi":"10.1180/clm.2023.31","DOIUrl":"https://doi.org/10.1180/clm.2023.31","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135634418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The importance of Fe speciation on the humic acid stability of ternary Fe(III)-montmorillonite-humic acid systems","authors":"Qinkai Lei, Yahui Lv, Chengshuai Liu, Wenpo Xu, Shujie Hu, Manjia Chen, Hongling Bu","doi":"10.1180/clm.2023.30","DOIUrl":"https://doi.org/10.1180/clm.2023.30","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135634419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differential dissolution of interlayer, octahedral, and tetrahedral cations of vermiculite in oxalic acid","authors":"Yu Zhang, Hongjuan Sun, Tongjiang Peng, Liming Luo, Li Zeng","doi":"10.1180/clm.2023.27","DOIUrl":"https://doi.org/10.1180/clm.2023.27","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":10311,"journal":{"name":"Clay Minerals","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}