Article
Environmental Sciences
Hanyu Wu, Jie Chen, Zengbo Su, Bin Ma, Yizhe Ji, Shuhan Lin, Dingfang Xu, Mingliang Kang
Summary: Eu(III) adsorption on muscovite and phlogopite was investigated under different conditions, showing pH dependency and Na+ independent for both micas, with interlayer sites only available on phlogopite under Na+ and Ca2+ electrolytes. Adsorption of Eu(III) on phlogopite led to interlayer expansion, and the addition of fulvic acid affected both the adsorption behavior of Eu(III) and the structural alteration of phlogopite.
Article
Chemistry, Multidisciplinary
Megan C. Wasson, Haomiao Xie, Xingjie Wang, Joshua S. Duncan, Omar K. Farha
Summary: Studying the structural evolution of actinide elements in metal-organic frameworks is significant for understanding nuclear energy technologies and radioactive waste containment. This study discovered the structural evolution of thorium and cerium under specific conditions.
Article
Chemistry, Physical
Chiara Cappelli, Alexander E. S. Van Driessche, Jordi Cama, F. Javier Huertas
Summary: The alteration of biotite and phlogopite micas was investigated using three microscopy techniques to understand mica surface reactivity better. Acidic solutions were used to dissolve the minerals, and in situ and ex situ experiments were performed. The findings revealed different processes shaping the mica surface, including the retreat of steps, the formation of etch pits and dissolution channels, and the precipitation of secondary phases. Overall, this multi-scale approach enhanced understanding of mica dissolution behavior and the effect of oxalic acid on mica surface reactivity.
APPLIED CLAY SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Bowei Chen, Ling Ding, Yan Wang, Yong Zhang
Summary: A novel chitosan-based aerogel with swelling resistance was prepared using sol-gel technology. The introduction of resorcinol and g-C3N4 enhanced the stability and adsorption performance of the aerogel for thorium. The results showed outstanding adsorption properties, with a short equilibrium time, fast adsorption rate, high removal efficiency at low concentration, and a large adsorption capacity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Engineering, Chemical
Youcai Hu, Jianhua Ding, Guangyuan Ren, Tianxiang Jin, Zhirong Liu, Yong Qian
Summary: In this study, a novel polymer-based xerogel, CCS-TCEP, was successfully prepared and applied for the adsorption of thorium ions. The CCS-TCEP exhibited high adsorption capacity, excellent selectivity, and fast adsorption rate. After multiple cycles of reuse, the adsorption capacity of CCS-TCEP remained high. The extraction mechanism of CCS-TCEP for thorium ions was analyzed in detail, indicating its potential application value.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Ahmed Said, Huimin Hu, Yanchu Liu, Qiwu Zhang, Jun Qu
Summary: Phlogopite was activated by ball milling at a mild speed of 300 rpm to be used as heavy metal ions adsorbent, with Cu2+, Zn2+, and Ni2+ ions easily removed at 2 g/L dosage. Cd2+ ion required a higher dosage for nearly complete removal. Surface precipitation and cation exchange were the main pathways for heavy metal ions adsorption.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Materials Science, Multidisciplinary
Alisson R. Cadore, Raphaela de Oliveira, Raphael Longuinhos, Veronica de C. Teixeira, Danilo A. Nagaoka, Vinicius T. Alvarenga, Jenaina Ribeiro-Soares, Kenji Watanabe, Takashi Taniguchi, Roberto M. Paniago, Angelo Malachias, Klaus Krambrock, Ingrid D. Barcelos, Christiano J. S. de Matos
Summary: Naturally occurring van der Waals crystals, such as the phlogopite mineral explored in this study, have attracted significant interest in the nanomaterial research field. The researchers conducted a high throughput characterization of phlogopite and discovered its stable nature, easy obtainability, atomically flat surface, and lower bandgap in monolayers and few-layers. They also investigated the presence of iron impurities in natural phlogopite, which affected its bandgap. Furthermore, the researchers successfully combined phlogopite crystals with 1L-WS2 to create ultrathin van der Waals heterostructures, showing enhanced optical quality.
Article
Biochemistry & Molecular Biology
Fuat Aslan, Demet Baybas, Ulvi Ulusoy
Summary: This study investigated the grafting of water-soluble sulfolignin onto hydroxyapatite and its composite properties in polyacrylamide. The characterization and adsorption tests showed the formation of PSLgHap and its adsorption characteristics for Th4+ and BSA.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
Youcai Hu, Qihang Peng, Tianxiang Jin, Guangyuan Ren, Zhirong Liu, Yong Qian
Summary: A novel self-crosslinking polymer-coated magnetic nanosorbent (Fe3O4@PAA) was prepared for the removal of thorium ions from aqueous solutions. The adsorbent exhibited a high adsorption rate and capacity, as well as good reusability. The extraction mechanism of thorium ions by the adsorbent was analyzed, providing valuable insights for the design and preparation of highly effective separation adsorbents.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Corey R. Martin, Gabrielle A. Leith, Natalia B. Shustova
Summary: Recent advances in actinide-containing metal-organic frameworks (An-MOFs) primarily focus on their electronic, catalytic, photophysical, and sorption properties, with potential applications in nuclear waste management. Research in this area is currently dominated by thorium- and uranium-containing structures, with limited reports on transuranic frameworks.
Article
Engineering, Environmental
Hassanien Gomaa, Mohammed Y. Emran, Mohamed M. Elsenety, Rabeea D. Abdel-Rahim, Qibo Deng, Mohamed I. Gadallah, Mohamed Saad, Hussain ALMohiy, Hassan Refat H. Ali, Faraghally A. Faraghally, Tarek A. Seaf El-Nasr, Mohamed S. A. El-Gaby, Abdelaziz M. Aboraia
Summary: In this study, a new fluorescent probe, PFBS, was developed for the detection of thorium (Th(IV)) ions in aqueous solution. A hybrid ZrPFBS was prepared for the selective removal of ultra-trace Th(IV) ions from water samples. Systematic investigations were conducted to optimize the Th(IV)-detection/adsorption process. The results showed that ZrPFBS had a high Th(IV) removal efficiency of 97.5% at pH 4, and Langmuir and pseudo-second order models successfully described Th(IV) ion adsorption. DFT simulations confirmed the adsorption mechanism and the capability of ZrPFBS to adsorb Th(IV) ions even after multiple reuse cycles.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Energy & Fuels
Qingzhou Zhao, Zhihong Xu, Zhisheng Yu
Summary: Biochar is considered a promising sorbent for removing radioactive uranyl and thorium ions in freshwater due to its efficiency and ease of operation. Experimental results showed good adsorption performance and applicability to various models for U(VI) and Th(IV). The study also identified key properties of the adsorption reaction that positively impact its feasibility.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Nanoscience & Nanotechnology
Junbeom Park, Ansgar Kretzschmar, Victor Selmert, Osmane Camara, Hans Kungl, Hermann Tempel, Shibabrata Basak, Ruediger A. Eichel
Summary: By increasing the carbonization temperature, the structure of PAN-based CNFs undergoes independent arrangements along the stack and lateral directions, gradually aligning and merging along the stack direction and enlarging along the lateral direction.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Manish Sharma, Priya Sharma, Lalita Yadav, Vikash Chandra Janu, Ragini Gupta
Summary: Efficient removal and recovery of thorium from water resources is achieved using magnetically separable Glu@MNPs. The adsorption process follows Langmuir isotherm and pseudo-second-order equation. The high removal efficiency is due to the presence of various functional groups on Glu@MNPs surface. The optimized conditions from the composite design model match well with batch adsorption studies.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Haijiang Shi, Zhanjun Zhang, Yinggen Ouyang, Xinyan Li, Xudong Zhao, Jing Zhao, Songtao Xiao
Summary: This study demonstrates the application of a Lewis base covalent-organic framework (COF), DhaTph, for the capture of radioactive thorium (Th) ions from aqueous solution. The COF exhibits a large adsorption capacity and rapid adsorption speed, as well as superior selectivity for Th ions. The results from systematic characterization and theoretical calculation provide insights into the mechanism of Th ion capture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Environmental
Jianjun Liang, Bihong He, Ping Li, Jie Yu, Xiaolan Zhao, Hanyu Wu, Jing Li, Yubing Sun, Qiaohui Fan
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Environmental Sciences
Zhiwei Niu, Xiaoyan Wei, Shirong Qiang, Hanyu Wu, Duoqiang Pan, Wangsuo Wu, Qiaohui Fan
Article
Environmental Sciences
Xiaolan Zhao, Bihong He, Hanyu Wu, Guodong Zheng, Xiangxian Ma, Jianjun Liang, Ping Li, Qiaohui Fan
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2020)
Article
Chemistry, Analytical
Kui Liu, Yufeng Gao, Zhengyan Fang, Xiangyu Zhou, Yue Ma, Hanyu Wu, Mingliang Kang, Biao Wang
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2020)
Article
Environmental Sciences
Hanyu Wu, Shuhan Lin, Xi Cheng, Jie Chen, Yizhe Ji, Dingfang Xu, Mingliang Kang
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2020)
Article
Environmental Sciences
Hanyu Wu, Jie Chen, Zengbo Su, Bin Ma, Yizhe Ji, Shuhan Lin, Dingfang Xu, Mingliang Kang
Summary: Eu(III) adsorption on muscovite and phlogopite was investigated under different conditions, showing pH dependency and Na+ independent for both micas, with interlayer sites only available on phlogopite under Na+ and Ca2+ electrolytes. Adsorption of Eu(III) on phlogopite led to interlayer expansion, and the addition of fulvic acid affected both the adsorption behavior of Eu(III) and the structural alteration of phlogopite.
Article
Chemistry, Inorganic & Nuclear
Hanyu Wu, Zhen Xu, Lu Zhu, Xi Cheng, Mingliang Kang
Summary: Feldspars, as an important primary mineral in soils, play a significant role in the migration of radioactive strontium. However, there is limited research on strontium adsorption on feldspars. This study investigates the interaction between strontium and K-feldspar at the solid-water interface and finds that surface complexation affects the chemical adsorption of strontium under slightly acidic conditions.
APPLIED RADIATION AND ISOTOPES
(2022)
Article
Environmental Sciences
Kun Zhang, Zhanguo Li, Sheng Qi, Wenzhuo Chen, Jianming Xie, Hanyu Wu, Hongjie Zhao, Daxue Li, Shanqiang Wang
Summary: The study investigated the adsorption behavior of Cs(I) onto natural soils collected in Beijing, revealing Illite/Smectite (I/S) and Illite (I) as the main clay mineral compositions. The adsorption of Cs(I) is an exothermic process, with the influence order of competitive cations on Cs(I) adsorption strength being K+ > Mg2+ ≈ Ca2+ > Na+. Humic acid has little effect on soil adsorption, and Cs+ is mainly distributed on the surface of soil particles.
Article
Chemistry, Analytical
Guanchao Li, Danwen Qin, Ying Hu, Zesheng Que, Bo Yang, Ru Zhang, Hanyu Wu, Mingliang Kang
Summary: An investigation was conducted to monitor the natural radiation level in a river region in Southern China. The mean terrestrial gamma dose rate and soil Rn concentration were found to be 100 +/- 40 nGy h(-1) and 4000 +/- 3000 Bq m(-3), respectively. The high radiation spots were mainly observed at the eastern edge and the southwest corner of the study region, which could be attributed to granite rocks.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Chemistry, Applied
Xiaolan Zhao, Wangsuo Wu, Duoqiang Pan, Hanyu Wu
Summary: This study investigated the mechanisms of nickel (Ni(II)) adsorption on hydroxyapatite (HAP) with two different particle sizes. The results showed that the adsorption capacity of nano-HAP was higher than that of micro-HAP, and the adsorption mechanisms were different for the two sizes.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
Jiacheng Wu, Binglin Guo, Mingliang Kang, Yixiao Kang, Wujian Jin, Hanyu Wu, Shijun Wu
Summary: This study compares the interaction of Se(IV) with different host rocks and reveals that the mechanisms of Se(IV) reduction are different for Beishan granite and Tamusu claystone. The findings provide important data for the safety assessment of China's future high-level radioactive waste repository and improve our understanding of the geochemical behavior of selenium in anoxic environments with Fe(II)- and sulfide-bearing minerals.
APPLIED GEOCHEMISTRY
(2022)
Article
Environmental Sciences
Yiguo Meng, Youbin Wang, Zhenxiong Ye, Nannan Wang, Chunlin He, Yanqiu Zhu, Toyohisa Fujita, Hanyu Wu, Xinpeng Wang
Summary: In this study, a novel TiP aerogel was developed for the selective removal of Sr(II) from radioactive wastewater. The TiP aerogel demonstrated high efficiency and selectivity, with a distribution coefficient of up to 4740.03 mL/g. It exhibited rapid adsorption kinetics and a maximum adsorption capacity of 373.6 mg/g at pH 5. The TiP aerogel also showed over 80% removal for 50 mg/L Sr2+ in real water systems. The results indicate that TiP aerogel is a promising adsorbent for the effective and selective capture of Sr(II) from radioactive wastewater.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Analytical
Jie Yang, Qiaoya Lin, Yuan Chen, Yong Li, Lewen Sun, Hanyu Wu, Mingliang Kang
Summary: This study assessed radiation safety by studying the adsorption of Co(II) using soil and groundwater samples collected from the surroundings of a proposed nuclear power plant's long-distance pipeline. The Freundlich and Langmuir models provided a good fit for the experimental data, indicating that Co adsorption is an entropy-driven, spontaneous, endothermic, and chemical process. The main mechanism of adsorption was found to be inner-sphere complexation, with CoSO4(aq) contributing to partially reversible occurrence. The findings of this study offer fundamental insights into the environmental behavior and adsorption mechanism of radioactice Co(II) in the vicinity of effluent pipelines.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Chemistry, Analytical
Xiaolan Zhao, Hanyu Wu, Meng Lu, Zhiwei Niu, Duoqiang Pan, Wangsuo Wu
Summary: Understanding the binding configuration of uranium on biotite is crucial for understanding its environmental behavior and addressing emergency scenarios in disposal repositories. The study found that the adsorption of U(VI) on biotite was significantly affected by pH, with a lesser impact from ionic strength. Additionally, the presence of phosphate and humic acid enhanced U(VI) adsorption, and XPS analysis revealed the formation of mineralization products under aerobic and anaerobic conditions.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Engineering, Environmental
Mingyue Ma, Zhenxiong Ye, Jie Zhang, Youbin Wang, Shunyan Ning, Xiangbiao Yin, Toyohisa Fujita, Yanliang Chen, Hanyu Wu, Xinpeng Wang
Summary: This study successfully designed and synthesized MnO2@CTS composite aerogel beads for efficient removal of uranium-containing wastewater. These aerogel beads exhibited convenient separation properties, remarkable mechanical strength, and high adsorption performance, highlighting their substantial potential for addressing U(VI) contamination in wastewater.
Article
Chemistry, Physical
Nadine J. Kanik, Artur Kuligiewicz, Jeffrey T. Cullen
Summary: This study examined the effects of different pre-treatments on the structural H-isotope composition of clay minerals. The results showed that different pre-treatments had varied impacts on different clay minerals, and the choice of pre-treatment should be based on the specific properties and mineralogy of the samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara
Summary: This study proposes Pickering emulsions based on wax and halloysite clay nanotubes for coating silk sutures to increase their loading capacity towards eosin. The presence of halloysite/wax microspheres on the surface of silk sutures has also been explored for controlled release of hydrophobic drugs. The influence of the coating on the thermal and mechanical properties of the sutures has been studied using various techniques. In conclusion, the wax/halloysite Pickering emulsions can successfully generate hydrophobic microdomains on the surface of silk sutures, leading to enhanced flexibility and improved loading capacity towards eosin.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Bruna F. Alves, Rita C. P. Nunes, Luiz C. Bertolino, Elizabete F. Lucas
Summary: Operational problems in the oil industry caused by the precipitation of paraffins can be prevented by using polymeric additives. This article evaluates the use of polymeric nanocomposites as pour point reducers in different types of crude oil and finds that they are more efficient than pure poly(ethylene-covinyl acetate) (EVA) in reducing the pour point. The nanocomposites also modify the wax crystals and reduce the viscosity of the oil samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
K. A. Daniels, C. C. Graham, A. C. Wiseall, J. F. Harrington, P. Sellin
Summary: Geological storage with clay buffer is widely preferred for removing hazardous radioactive waste. The impact of fluid salinity and void space on the swelling behavior of barrier bentonites was examined through experiments. The findings suggest that clay swelling is suppressed at higher salinities, which affects the void-filling process.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
N. Werling, A. Kuligiewicz, A. Steudel, R. Schuhmann, F. Dehn, K. Emmerich
Summary: Thermal treatment of clay minerals can be used to produce building materials and environmentally friendly binders. This process involves dehydration, dehydroxylation, breakdown of structure, and recrystallization of high temperature phases. Rehydration and rehydroxylation are important factors to consider for geopolymers and SCM.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Xuan Wang, Hao Ding, Zhuoqun Xu, Jianmeng Zhang, Yanbin Yao
Summary: Rutile nano-TiO2 was loaded onto the surface of sericite to prepare sericite-rutile composite particles, which were then modified with HDTMS and sprayed onto the substrates to form sericite-rutile/HDTMS composite coatings with UV shielding and superhydrophobic self-cleaning properties. The coating exhibited good UV shielding rate and remained superhydrophobic after UV irradiation. The hierarchical structure of the sericite-rutile composite and the low surface energy of HDTMS contributed to the superhydrophobicity and UV shielding effect of the coating.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Kailang Sun, Taojun Zhang, Jie Zhou, Yonghong Liu, Minfeng Zeng, Zhen Yang, Ruokun Feng, Xiaorong Ren, Peng Zhang, Baoyi Wang, Xingzhong Cao
Summary: Chitosan-Pd0 nano particles encapsulated in Al, Co-pillared montmorillonite nanocomposites were successfully synthesized using a facile one-pot heat treatment method. The Al, Co pillaring effectively expanded the surface area and generated numerous mesopores in the interlayer space of the MMt. The resultant nanocomposite exhibited similar high comprehensive catalytic performances as the one prepared by the regular divided-multistep method. The encapsulation of CS chains and doping of Co in the Al pillaring also contributed to the improved catalytic performance.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Nathalie Fagel, Isabel Israde-Alcantara, Reza Safaierad, Marttiina Rantala, Sabine Schmidt, Gilles Lepoint, Pierre Pellenard, Nadine Mattielli, Sarah Metcalfe
Summary: Environmental conditions significantly influence clay minerals, and studying clay sediments in tropical lakes can provide valuable insights into past environmental conditions. In this study, multiproxy records from sediment cores of three crater lakes in central Mexico were analyzed. The results showed that disordered kaolinite, formed through hydrolysis and hydrothermal alteration, was the predominant mineral in the sediments. The abundance of kaolinite varied in relation to organic carbon and organic matter-related elements, and showed opposite trends with lithogenic elements. Geochemical data suggested that the increase in kaolinite abundance is linked to the formation of organo-mineral aggregates and lake level changes in closed basins.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
M. J. Martin-Alfonso, A. Mejia, F. J. Martinez-Boza, P. Partal
Summary: The drilling industry is facing new challenges to develop eco-friendlier drilling fluids. Organic modified sepiolite dispersed in oil can be an excellent additive with suitable rheological properties. This study investigated the effect of alkyl ammonium modifiers on the microstructure and rheological properties of sepiolite-vegetable oil dispersions under high-temperature and high-pressure conditions.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Weiquan Zhan, Siyuan Yang, Shenxu Bao, Liuyi Ren, Cheng Liu
Summary: The interaction between talc and the depressor CMC was investigated through molecular dynamics simulation and density functional theory calculation. It was found that CMC showed stronger adsorption on the edge plane of talc due to enhanced interactions with polar groups and water molecules. The study also revealed specific interactions between H atoms in CMC and O atoms in the edge plane, as well as between O atoms in CMC and Si, Mg atoms in the edge plane. Hydration shells on the basal and edge planes of talc were examined to explain the phenomenon.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Pierre Dramou, Yiyang Sun, Xu Ni, Fangqi Wang, Hua He
Summary: In this study, a magnetic nanocomposite was prepared and used for the separation of rutin from real samples through magnetic solid phase extraction (MSPE). The nanocomposite exhibited high specific surface area, chemical and thermal stability, water solubility, and easy separation in aqueous solution. Characterization and experiments confirmed the successful synthesis and efficient enrichment ability of the nanocomposite.
APPLIED CLAY SCIENCE
(2024)