Article
Chemistry, Physical
Guangze Nie, Lirui Wu, Shijun Qiu, Zhengwen Xu, Hailing Wang
Summary: Efficient removal of phosphate is crucial for addressing eutrophication. A millimeter-sized nanocomposite, MgAl-201, was developed by impregnating Mg/Al LDH nanosheets into a polystyrene anion exchanger. MgAl-201 exhibited excellent adsorption performance and chemical stability in a wide pH range. It showed great potential for phosphate removal from neutral contaminated waters and achieved a treatable volume 8 times that of traditional anion exchangers.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Ziying Chen, Chengyu Chen, Xuewen Luo, Junhong Liu, Zhujian Huang
Summary: This study investigated the flocculation of nanoplastics (NPs) on layered double hydroxides (LDHs) in water through heteroaggregation analysis under various conditions, revealing the interaction mechanisms and interface reactions. The results showed that the optimal conditions for NP removal were a Mg:Al ratio of 3:1 and a calcination temperature of 300 degrees C. The interparticle forces were dominated by electrostatic repulsion at short distances, transitioning to van der Waals and electrostatic attractions at longer distances, leading to particle attachment.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Mounira Elhachemi, Zoubida Chemat-Djenni, Derradji Chebli, Abdallah Bouguettoucha, Abdeltif Amrane
Summary: This research focuses on the study of a new material, layered double hydroxide (LDH), and its ability to retain nitrate anions. The LDH was synthesized using a co-precipitation method and characterized using various techniques. Adsorption experiments were conducted to test the factors influencing nitrate retention. The results showed that the LDH had a high adsorption capacity for nitrate. Additionally, a statistical physics model was used to explain the nitrate adsorption mechanism.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
Yutao Peng, Yuqing Sun, Aamir Hanif, Jin Shang, Zhengtao Shen, Deyi Hou, Yaoyu Zhou, Qing Chen, Yong Sik Ok, Daniel C. W. Tsang
Summary: This study compared biochar-supported LDHs composites prepared using different methods and conditions, showing that the AMOST method can enhance the contaminant removal capacity of adsorbents at higher temperatures and lower metal loadings due to the synergistic effect between LDHs and biochar.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Materials Science, Multidisciplinary
Jun Qin, Hongyu Shi, Qing Lv, Min He, Yong Xu, Mengyu Chen, Xiaolang Chen, Jinsheng Zhang, Yufei Liu, Jie Yu
Summary: The defect ordering MgAl-LDHs nanosheets were designed and fabricated for efficient removal of CR, and the defect enhancing adsorption mechanism provides a new strategy for wastewater remediation.
MATERIALS & DESIGN
(2023)
Article
Engineering, Environmental
Ziying Chen, Zhujian Huang, Junhong Liu, Enya Wu, Qian Zheng, Lihua Cui
Summary: Nanoplastics, an emerging pollutant, have attracted global attention. The use of Mg/Al-layered double hydroxides (LDH) for flocculation shows potential for removing PSNP. The study reveals that LDH can capture PSNP under different pH conditions, with removal efficiencies over 90.0%.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Karolina Rybka, Jakub Matusik, Mateusz Marzec
Summary: This study compared the efficiency of LDH obtained via transformation of magnesite with conventionally obtained LDH in removing various anions. The results showed that LDH obtained with the use of magnesite demonstrated high efficiency and selectivity for the removal of low concentrations of anions under low pH conditions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Applied
Shanshan Miao, Zhentao Luo, Shujuan Tan, Tong Xu, Zhuoting Zhou, Guangyuan Feng, Guoyue Xu, Guangbin Ji
Summary: This study develops stealth coatings with Mg-Al layered double hydroxide films, which achieve the same color and spectrum as green vegetation and demonstrate excellent weather resistance. It provides new insights into the application of hyperspectral materials in biomimetic camouflage.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Green & Sustainable Science & Technology
Aamir Hanif, Mingzhe Sun, Tianqi Wang, Shanshan Shang, Daniel C. W. Tsang, Jin Shang
Summary: NO2 is a potent air pollutant that can be captured directly from the atmosphere by selective adsorption on porous materials. The study reports the rational development and demonstration of Mg-Al layered double hydroxides and their derived mixed metal oxides as high-capacity adsorbents. By boosting the densities of accessible basic sites, the highest NO2 adsorption capacity was achieved, offering promising, durable, and scalable adsorbents for ambient NO2 removal.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Yuze Zhang, Lijuan Li, Dong Shi, Fugen Song
Summary: In this study, layered double hydroxides intercalated with sorbate anion (SLDHs) were successfully synthesized and their potential applications in sorbic acid controlled-releasing, UV barrier, reinforcement of rubber and flame retardancy were confirmed. The research findings have important practical implications for the promotion of the scale application of SLDHs.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Danyang Wang, Eveliina Repo, Fangshu He, Xiaowei Zhang, Hongrui Xiang, Weichun Yang, Xiaobo Min, Feiping Zhao
Summary: The discharge of toxic heavy metals is a serious threat to both human health and the environment. However, current water purification systems lack effective materials for the rapid, efficient, and cost-effective remediation of these toxic heavy metals. In this study, a new adsorbent called L-cysteine (Cys) intercalated Mg-Al layered double hydroxide (MgAl-LDH/Cys) was developed for the removal of Pb(II) and Cd(II). This material has a loose lamellar porous structure and, thanks to the intercalation of Cys, it has both increased diffusion of heavy metals and additional capture sites. As a result, MgAl-LDH/Cys exhibited significantly higher sorption capacity and faster sorption kinetics compared to pristine MgAl-LDH. These findings suggest that MgAl-LDH/Cys has great potential for practical applications in heavy metal remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Yanwei Guo, Hongtao Lu, Bangjun Han, Tiemei Zou, Zhiliang Zhu
Summary: A series of novel layered double hydroxides (Mg-Fe-Ti-LDHs) containing Mg2+, Fe3+ and Ti4+ were prepared and their adsorption performance on vanadate in aqueous solution was investigated. The results showed that the introduction of Ti4+ into the LDHs materials increased the vanadate adsorption efficiency. The adsorption capacity was also influenced by the anion intercalated layers, with Cl- intercalation showing higher removal compared to CO32-. The pH of the solution and coexisting ions also had significant effects on vanadate adsorption.
Article
Chemistry, Physical
Xiaoying Li, Zhaoji Shi, Jiaen Zhang, Tian Gan, Zeheng Xiao
Summary: Mg-Al layered double hydroxides (Mg-Al/LDH)-decorated invasive plant (Praxelis clematidea)-derived biochar (MgAl/LDH-PBC) was prepared and showed excellent adsorption capacity for Cr(VI) removal. The modified biochar surface provided more active adsorption sites and achieved rapid uptake equilibrium. The adsorption of Cr(VI) was stable and efficient, even in the presence of other ions.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Changcheng Chen, Mina Luo, Fu Chen, Chao Huang, Chunmei Zhu, Hongjun Wu
Summary: In this study, Fe(III) complexed polydopamine modified Mg/Al layered double hydroxides composite material (LDHs@PDA-Fe(III)) was prepared and used for the removal of Cr(VI) in aqueous solution. LDHs@PDA-Fe(III) showed excellent adsorption capacity and stability, which was confirmed through characterization analysis and adsorption experiments. The adsorption of Cr(VI) by LDHs@PDA-Fe(III) was found to be the result of the synergistic effect of multiple adsorption mechanisms. Therefore, LDHs@PDA-Fe(III) is an ideal adsorbent for removing Cr(VI) from aqueous solutions.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Chemistry, Inorganic & Nuclear
Yan Wang, Yong Zhang, Xiaolin Liu, Sen Sun, Shiyi Qin, Jiaqi Huang, Bowei Chen
Summary: In this study, magnetic layered double oxides coated with carbon dots (MLCs) were synthesized for capturing uranium from aqueous solution. The MLC composite with a Co to Al molar ratio of 4:1 exhibited the highest affinity to uranium(vi), with short equilibrium time, high adsorption efficiency, and large removal capacity. The adsorption behavior of MLCs for uranium(vi) followed the Langmuir and pseudo-second-order models, and redox reaction, chemical complexation, and electrostatic attraction were found to play significant roles in uranium(vi) separation. MLC-3 showed excellent reusability and could be used as a potential adsorbent in uranium(vi)-containing wastewater treatment.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Chemical
Jie Liu, Junsheng Yuan, Zhiyong Ji, Bingjun Wang, Yachao Hao, Xiaofu Guo
Article
Engineering, Chemical
Jie Liu, Pingli Li, Yingdong Li, Lixin Xie, Shichang Wang, Zhi Wang
Article
Engineering, Chemical
Jie Liu, Lixin Xie, Zhi Wang, Junsheng Yuan
DESALINATION AND WATER TREATMENT
(2014)
Article
Thermodynamics
Jie Liu, Junsheng Yuan, Lixin Xie, Zhiyong Ji
Article
Chemistry, Multidisciplinary
Jie Liu, Lixin Xie, Zhi Wang, Junsheng Yuan
SEPARATION SCIENCE AND TECHNOLOGY
(2013)
Article
Nanoscience & Nanotechnology
Hui Meng, Jingtao Bi, Jie Liu, Shizhao Wang, Zhiyong Ji, Yingying Zhao, Fei Li, Xiaofu Guo, Junsheng Yuan
Summary: In this study, a nano-MnO2-functionalized hydrophobic ceramic membrane was designed and prepared using a hydrothermal method. The chemical composition and nanostructure of the prepared MnO2 composite membranes were characterized. The catalytic ability of the nano-MnO2 composite membranes to sulfite was studied, and the oxidation kinetics of sulfite were investigated.
ACS APPLIED NANO MATERIALS
(2023)
