Article
Engineering, Environmental
Lihua Feng, Qian Zhang, Fangying Ji, Lei Jiang, Caocong Liu, Qiushi Shen, Qian Liu
Summary: In this study, PS-La-LDH hydrogel beads were prepared as promising adsorbents for phosphate removal, showing excellent adsorption performance and selectivity under various conditions. Results indicated that the adsorption process of phosphate by PS-La-LDH followed the pseudo-second-order kinetic model and Freundlich model, with electrostatic interaction, ligand exchange, and ion exchange facilitating the adsorption of phosphate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Jiale Yao, Min Sang, Danying Zuo, Hongwei Zhang, Hongjun Li, Qiuhan Wang
Summary: By incorporating layered double hydroxide (LDH) into semi-interpenetrating polymer network (sIPN) hydrogels, the researchers successfully prepared optimized samples with high selective adsorption capacity for removing dyes from wastewater and improved fragility issue. The adsorption kinetics and isotherm analysis suggested strong electrostatic interaction mechanism and multilayered adsorption behavior. The sIPN hydrogel containing LDH showed high regeneration efficiency and could withstand multiple cycles of use.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Shuangqiu Huang, Ting Ouyang, Jinyan Chen, Zhu Wang, Shuiqiu Liao, Xiuying Li, Zhao-Qing Liu
Summary: In this study, the surface charge density of NiFe LDH was tuned to improve the adsorption performance of Cr(VI) by nearly 150% through changing the iron valence. The increase in hydroxyl groups and charge density on the NiFe LDH surface was mainly attributed to the topological chemical transition. The adsorption of Cr(VI) onto Fe2+-NiFe LDH was highly pH-dependent and the main removal mechanisms involved electrostatic attraction, interlayer anion exchange, and adsorption-coupled reduction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Mingzhe Dong, Qinglong Luo, Jun Li, Kaiyuan Shi, Zhijian Wu, Jie Tang
Summary: Porous MgAl-layered double hydroxides (MgAl-LDHs) were synthesized by a sol-gel method and converted into LiAl-LDHs through a dissolution and recrystallization process. Both MgAl-LDHs and LiAl-LDHs showed high adsorption capacity and are promising for scalable lithium extraction from salt-lake brines.
MINERALS ENGINEERING
(2023)
Article
Chemistry, Physical
Fanping Kong, Yuan Xie, Caifeng Xia, Hanhan Huang, Derui Liang, Yahui Qiu, Qian Zhang, Xinpeng Liu, Huaizhi Shao, Zilin Meng
Summary: Biochar supported Zn-Al-Fe layered double hydroxide (LDH@BC) was synthesized for efficient removal of H2S. The LDHs grew uniformly on the surface of BC and formed a porous structure, enabling better gas passage. The optimized LDH@BC composite exhibited over 80% removal efficiency for H2S at a concentration of 1000 mg/m(3) and temperature of 180C.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Analytical
Mohamed A. Ghamry, Mohamed A. Attia, Moustafa A. Hamoud, Mamdoh R. Mahmoud
Summary: Co(II)-Fe(III) layered double hydroxide (LDH) was synthesized and shown to efficiently adsorb 99Mo(VI) anions from aqueous solutions with a recovery rate of over 98%. The synthesized LDH reached equilibrium adsorption within 120 minutes, with about 82% of the 99Mo(VI) adsorbed in the first ten minutes. Thermodynamic parameters were estimated and the effect of different foreign anions at various concentrations was evaluated. The maximum adsorption capacity for 99Mo(VI) was found to be 255.175 mg g-1 at pH 3.5, surpassing previous literature reports.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kai Wu, Qing Ye, Lanyang Wang, Fanwei Meng, Hongxing Dai
Summary: A novel kind of CO2 solid adsorbents was prepared by loading layered double hydroxides (LDH) on mesoporous alumina (MA) support. The LDHs were evenly distributed on the surface of MA, resulting in improved CO2 adsorption performance through chemical adsorption and storage of CO2 in the form of carbonate. This new adsorbent has great potential in CO2 adsorption applications.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Physical
Sharifur Rahman, Chanaka M. Navarathna, Naba Krishna Das, Jacinta Alchouron, Parker Reneau, Sean Stokes, Rooban V. K. G. Thirumalai, Felio Perez, E. Barbary Hassan, Dinesh Mohan, Charles U. Pittman, Todd Mlsna
Summary: This study demonstrates that the combination of Fe-Mg layered double hydroxides with biochar shows great potential for efficiently adsorbing phosphate from water, even in the presence of other anionic contaminants. Additionally, regeneration of the adsorbents can be achieved by stripping with a 1 M NaOH solution.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Jiahui Ge, Lili Lian, Xiyue Wang, Xueling Cao, Wenxiu Gao, Dawei Lou
Summary: Layered double hydroxides (LDHs) and layered double oxides (LDOs) are excellent adsorption materials for printing and wastewater treatment due to their anion exchange abilities and active sites. A versatile LDO hybrid coated with carbon dots (CDs@MgAl-LDO) was developed and showed superior adsorption performance for various dyes, following a pseudo-second-order kinetic model with high R-square values. This study provides a facile approach for preparing carbon dots-LDH hybrids with efficient dye removal capabilities.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Xiaopeng Min, Jingwan Huo, Qianqian Dong, Shangping Xu, Yin Wang
Summary: This study reported the development of a series of new organically functionalized layered double hydroxide (LDH) adsorbents for the removal of per- and polyfluoroalkyl substances (PFAS) from contaminated water, with a specific focus on perfluorooctanoic acid (PFOA). The organically functionalized LDHs showed efficient PFOA adsorption by combining strong electrostatic and hydrophobic interactions. The adsorption kinetics and capacities were found to be higher for the organically functionalized LDHs compared to the unmodified LDH. Additionally, the organically functionalized LDHs exhibited improved performance under various water chemistry conditions and remained effective after repeated adsorption-regeneration cycles. This work suggests that organically functionalized LDHs hold great promise for the treatment of PFAS-contaminated water.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Chaonan Wang, Huiqin Yao, Zidan Cai, Senkai Han, Keren Shi, Zhenglong Wu, Shulan Ma
Summary: The development of low-cost and high-efficiency iodine sorbents is essential for nuclear pollution control. In this study, we intercalated the tin sulfide cluster of [Sn2S6](4-) into Mg/Al-type layered double hydroxides to obtain Sn2S6-LDH, which exhibited highly efficient capture performance for iodine in both vapor and solution forms. The adsorption capacity of Sn2S6-LDH for iodine vapor reached 2954 mg/g, mainly through physisorption, while the sorption capacity for iodine in solutions achieved a significantly large value of 1308 mg/g. During iodine capture, the reduction of I-2 molecules to I- ions by S2- in [Sn2S6](4-) led to the formation of SnI4, where the amount of captured iodine was four times that of Sn. The excellent iodine capture capability of Sn2S6-LDH makes it a promising material for trapping radioactive iodine.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Agricultural Engineering
Mukarram Zubair, Ihsanullah Ihsanullah, Hamidi Abdul Aziz, Mohd Azmier Ahmad, Mamdouh A. Al-Harthi
Summary: Biochar/LDH composites have been recognized as low-cost sustainable materials for water treatment, showing great potential in adsorption and catalytic degradation of various pollutants. The synergistic effect of LDH with biochar enhances the adsorption characteristics of the composites, making them promising candidates for water purification applications.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Jiangpo Zhang, Qi Xia, Xiaofeng Hong, Jianjun Chen, Daijun Liu
Summary: In this study, different ratios of layered double hydroxides (LDHs) were synthesized and characterized. The Mg2Al-NO3 LDH showed high adsorption capacity for phosphate removal from aqueous solution, confirming its potential as an effective adsorbent.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Jingwan Huo, Xiaopeng Min, Qianqian Dong, Shangping Xu, Yin Wang
Summary: This study investigated the performance of two types of LDH materials for the removal of PFAS, finding that Zn-Al LDH showed higher efficiency and better adsorption capacity for PFOA compared to Mg-Al LDH. The presence of natural organic matter had minimal impact on PFOA removal by Zn-Al LDH, while sulfate severely inhibited PFOA adsorption, suggesting that electrostatic interactions may play a primary role in the adsorption mechanism onto LDHs for PFAS removal.
Article
Chemistry, Inorganic & Nuclear
Fengrui Li, Tuo Ji, Weichao Chen, Wei Du, Yonghui Wang, Yinan Hou, Weilin Chen
Summary: A series of reduced polyoxovanadates were intercalated into copper-induced ZnAl layered double hydroxide nanosheets with oxygen vacancies through an anion exchange strategy for green ammonia production. This work is of great significance for the rational design of an efficient photo-driven nitrogen-reduction composite catalyst for sustainable ammonia production.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Toshiyuki Hibino
APPLIED CLAY SCIENCE
(2015)
Correction
Chemistry, Physical
Toshiyuki Hibino
APPLIED CLAY SCIENCE
(2016)
Article
Chemistry, Inorganic & Nuclear
Toshiyuki Hibino
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2018)
Article
Chemistry, Physical
Toshiyuki Hibino, Hitoshi Ohya
APPLIED CLAY SCIENCE
(2009)
Article
Chemistry, Physical
Toshiyuki Hibino
APPLIED CLAY SCIENCE
(2010)
Article
Chemistry, Physical
Toshiyuki Hibino
APPLIED CLAY SCIENCE
(2011)
Article
Chemistry, Physical
Toshiyuki Hibino
APPLIED CLAY SCIENCE
(2014)
Article
Chemistry, Inorganic & Nuclear
Toshiyuki Hibino
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2014)
Article
Engineering, Environmental
Nobuyuki Takahashi, Toshiyuki Hibino, Hisatomo Torii, Shingo Shibata, Shinya Tasaka, Jun Yoneya, Manabu Matsuda, Hisao Ogasawara, Kazuaki Sugimoto, Tetsuo Fujioka
OZONE-SCIENCE & ENGINEERING
(2013)
Article
Chemistry, Physical
Toshiyuki Hibino
Summary: This study demonstrates a simple and novel method for synthesizing LDH-containing hydrogel by hydrothermally treated or untreated chloride-containing LDH particles, mixed with a superabsorbent polymer to form composite gel with high anion adsorption capacity.
APPLIED CLAY SCIENCE
(2021)
Correction
Chemistry, Physical
Toshiyuki Hibino
APPLIED CLAY SCIENCE
(2017)
Article
Thermodynamics
T Stanimirova, T Hibino, V Balek
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2006)
Article
Chemistry, Physical
T Stanimirova, T Hibino
APPLIED CLAY SCIENCE
(2006)
Article
Chemistry, Physical
T Hibino, M Kobayashi
JOURNAL OF MATERIALS CHEMISTRY
(2005)
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)