Article
Chemistry, Multidisciplinary
Jiaqiang Li, Haicheng Cao, Qingxiao Wang, Hui Zhang, Qing Liu, Cailing Chen, Zhan Shi, Guanxing Li, Ya Kong, Yichen Cai, Jie Shen, Ying Wu, Zhiping Lai, Yu Han, Jin Zhang
Summary: This study reports a method to synthesize monolayer graphdiyne within the interlayer space of MXene and demonstrates its excellent electronic properties. The new strategy of preparing 2D materials provides a pathway for fabricating materials with precisely controlled layer numbers and long-range structural order.
ADVANCED MATERIALS
(2023)
Review
Environmental Sciences
Gill Gillenay Haciosmanoglu, Carmen Mejias, Julia Martin, Juan Luis Santos, Irene Aparicio, Esteban Alonso
Summary: Increased antibiotic use worldwide has caused concerns due to their health and environmental impacts. This paper reviews the recent progress in using natural and modified clay minerals as efficient and cost-effective adsorbents for the removal of antibiotics from water. The characteristics of clay minerals as adsorbents and the factors affecting the adsorption are explored, along with future trends and strategies to increase their adsorption capacity. The paper also discusses the application of these adsorbents at pilot scale and other related issues such as reuse, economic analysis, and life cycle assessment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
Ye Zhang, Mengqiu Xu, Xudong Xu, Xiaoyu Li, Genping Zhu, Gan Jia, Bingchuan Yang, Ruilian Yin, Peng Gao, Wei Ye
Summary: This study reports Fe-doped layered alpha-Ni(OH)2 as a bifunctional catalyst for nitrate reduction and oxygen evolution reactions. The expanded interlayer spacing facilitates potassium ion intercalation and triggers the reactions. The catalyst shows high ammonia yield rate and faradaic efficiency at the cathode, and reduced overpotential for oxygen generation at the anode.
Article
Chemistry, Physical
Karol Kulacz, Kazimierz Orzechowski, Balazs Zsirka, Janos Kristof
Summary: This study examines the interactions between unmodified nontronite and nontronite intercalated with formamide. The results show that the low-frequency permittivity of unmodified nontronite is significantly higher than that of the material intercalated with formamide. This may be due to the movement of ions in unmodified nontronite. Intercalation with formamide does not restore the mobility of ions, resulting in a relatively low low-frequency electric permittivity.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Na Zhang, Xumeng Chen
Summary: This study investigates the effects of kaolinite and quartz on the stability of coal froths. The results show that kaolinite can increase the stability of coal froth, while quartz does not have a significant effect. The addition of kaolinite strengthens the structural strength of coal froth and generates network structures, leading to increased stability.
Article
Engineering, Environmental
Zhenxing Zeng, Fei Ye, Shihuai Deng, Dexin Fang, Xiaojing Wang, Yanfu Bai, Hong Xiao
Summary: In this study, a novel solar energy triggered water-energy system using Pt single atom catalyst confined by carbon nitride was proposed for efficient organic pollutants degradation and hydrogen generation. The well confined interlayer environment reduces the energy barrier for hydrogen evolution and blocks the access of introduced O2, while the O2 can be activated by the surface layers of carbon nitride to accelerate the mineralization of hole-oxidized pollutants into H2O and CO2. The PtSA/g-C3N4 catalyst exhibited excellent photocatalytic activity for H2 production coupled with p-chlorophenol mineralization.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Trang T. T. Vu, Nguyen T. T. Nguyen, Linh H. Duong, Anh D. Nguyen, Lan Nguyen-Thanh, Stefan Dultz, Minh N. Nguyen
Summary: This study aims to test the removal of polystyrene microplastics (PSMPs) from aqueous solution by using the cationic polyelectrolyte polydiallyldimethylammonium chloride (polyDADMAC) to stimulate coaggregation of PSMPs and clay minerals with different shape and surface charge properties. The addition of polyDADMAC neutralizes the negative surface charge of clay minerals and PSMPs, allowing their coaggregation. The efficiency to remove PSMPs from aqueous solution follows the order: palygorskite > montmorillonite > kaolinite.
APPLIED CLAY SCIENCE
(2023)
Article
Engineering, Chemical
Qi Han, Julie Yu, Sidney Poon, Leeann Sun, Minerva Teli, Bei Liu, Hong Chen, Kunkun Wang, Zhongying Wang, Baoxia Mi
Summary: This study investigated the removal of Cr(VI) using MoS2 nanosheets, revealing a phase-dependent mechanism with high efficiency and simultaneous removal of Cr(III). The unique composition and structure of MoS2 impacted the removal mechanism and efficiency significantly.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Zhenzhen Jiang, Wenda Zhou, Ce Hu, Xingfang Luo, Wei Zeng, Xunguo Gong, Yong Yang, Ting Yu, Wen Lei, Cailei Yuan
Summary: An ingenious approach of confining dual atoms (DAs) of Ni and Fe within the interlayer of MoS2 is proposed, which exhibits exceptional adsorption strength and catalytic activity in acidic water splitting. The interlayer-confined structure also provides protection for the metal DAs in harsh acidic environment.
ADVANCED MATERIALS
(2023)
Article
Engineering, Geological
Ya-ni Wei, Wen Fan, Chengbo Fu, Bo Yu
Summary: This study investigated the type, content, properties, and occurrence mode of clay minerals in Malan loess. The results indicated that interstratified illite-montmorillonite and illite are two primary clay minerals in the studied loess. The hydration swelling of clay cementation was illustrated to be the primary trigger of loess collapse
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2023)
Article
Chemistry, Multidisciplinary
Honghu Liu, Jing Liu, Xianwei Zhang, Xinyu Liu
Summary: This study analyzed the shrink-swell process and its effects on gully development in weathered granite soils in southern China. It found that soil properties varied with depth, SWC was closely related to internal soil properties, and continuous shrink-swell variation could lead to crack formation and gully erosion.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Eric Ferrage, Fabien Hubert, Thomas Dabat, Ali Asaad, Baptiste Dazas, Brian Gregoire, Sebastien Savoye, Emmanuel Tertre
Summary: In this study, the impact of the preferred orientation of lamellar clay particles on water diffusion in clay porous media was systematically investigated. The results showed that water diffusion can be predicted based on a correct description of the solid phase organization and that clay particle orientation is a primary parameter governing water mobility.
APPLIED CLAY SCIENCE
(2023)
Article
Engineering, Environmental
Tahereh Salehi, Mehran Shirvani, Mohammad Dinari, Edris Gavili
Summary: In this study, a novel nanocomposite adsorbent was synthesized by incorporating cysteine-modified bentonite (Cys-BNT) into poly(vinyl alcohol)/alginate (PVA/Alg) hydrogel, which exhibited a high adsorption efficiency and rapid adsorption behavior for the removal of lead from polluted waters.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Environmental Sciences
Peng He, Yao Xiong, Yaozong Chen, Mengfei Liu, Jianyu Zhu, Min Gan
Summary: In this study, a persulfate catalyst (TMH@M) was prepared using montmorillonite and hematite for sulfamethoxazole degradation, achieving over 91% removal efficiency within 60 minutes. The degradation efficiency of SMX was affected by SMX concentration, PS dosage, and natural organic matters.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Xuyao Xiong, Congcong Ning, Yan Jin, Dongling Li, Qian Yang, Xiangnan Gong, Chao Cheng, Qingjiang Pan, Yi Xu, Baoshan Hu
Summary: This research proposes a new strategy to regulate the synthesis of graphene ribbons and successfully synthesizes pure and N-doped graphene ribbon arrays. By studying the interlayer coupling interaction of graphene ribbons and N-doped graphene ribbons, novel Raman scattering modes are discovered.
Article
Chemistry, Physical
Nitish Govindarajan, Vivek Sinha, Monica Trincado, Hansjoerg Gruetzmacher, Evert Jan Meijer, Bas de Bruin
Article
Geochemistry & Geophysics
Kai Wang, Xiancai Lu, John P. Brodholt
GEOCHIMICA ET COSMOCHIMICA ACTA
(2020)
Article
Geochemistry & Geophysics
Yicheng Sun, Huiqun Zhou, Xiandong Liu, Kun Yin, Xiancai Lu
EARTH AND PLANETARY SCIENCE LETTERS
(2020)
Article
Engineering, Environmental
Meirong Zong, Duo Song, Xin Zhang, Xiaopeng Huang, Xiancai Lu, Kevin M. Rosso
Summary: Research has shown that the exposure of different crystal facets in hematite nanostructures affects the adsorption and photodegradation efficiency of methylene blue, mainly due to variations in iron ion sites and surface structures. Experimental comparisons and theoretical calculations on the (001) and (012) facets reveal that the (001) facet exhibits a higher photodegradation rate for methylene blue.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Nitish Govindarajan, Hugo Beks, Evert Jan Meijer
Article
Chemistry, Physical
Ying-Ying Li, Evert Jan Meijer, Rong-Zhen Liao
Summary: This study investigates the mechanism of O-O bond formation catalyzed by a mononuclear iron catalyst, revealing the significant role of water solvent molecules, especially in the nitrate nucleophilic attack pathway. The study also highlights the potential design rule of utilizing nitrate ions as co-catalysts for improved water oxidation catalysts.
Article
Engineering, Environmental
Yingchun Zhang, Xiandong Liu, Jun Cheng, Xiancai Lu
Summary: This study investigated the complexation mechanisms of As(V) on iron hydroxides by calculating the acidity constants of surface groups and desorption free energies. The obtained data sets are fundamental parameters controlling the behavior of iron oxyhydroxides and could be useful in developing effective adsorbent materials for As(V) removal in natural environments. The pH-dependent complexation mechanisms derived from this study may contribute to predicting the long-term behavior of As(V) in natural environments.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Chao Ren, Mengzi Zhou, Zhengmao Liu, Lixin Liang, Xiaozhan Li, Xiancai Lu, Hongtao Wang, Junfeng Ji, Luming Peng, Guangjin Hou, Wei Li
Summary: This study utilized F-19 solid-state NMR spectroscopy to investigate fluoride sorption products on 2:1 MgAl LDHs and their relationship with the LDH structure. The results showed that Al-F is the predominant mode of fluoride sorption at low pH, while Mg-F is predominant at high pH. These findings provide insights into the different roles of surface >MgOH and >AlOH sites in defluoridation processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yingchun Zhang, Xiandong Liu, Xiancai Lu
Summary: In this study, the acidity constants (pKa) of groups on the birnessite (010) edge were calculated using first-principles molecular dynamics simulations and the vertical energy gap method. It was found that MnOH2 is active while Mn2OH is inert in a common pH range. In addition, the feasibility of transition metal incorporation on the edge surface was investigated.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Mengjia He, Xiandong Liu, Xiancai Lu, Yingchun Zhang, Rucheng Wang
Summary: In this study, first-principles molecular dynamics simulations were used to investigate the formation process of uranyl arsenate dimer and its role in controlling uranium migration. The results showed that the dimer has a 4-coordinate structure in solution, which is consistent with the coordination environment observed in autunite-group minerals. This study fills a critical gap in our understanding of the formation mechanism of these minerals and provides a theoretical basis for regulating uranium mobilization in P/As-bearing tailing water.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Tianhua Wang, Jia-Xin She, Yicheng Sun, Qin Li, Xiancai Lu, Weiqiang Li, Xiandong Liu
Summary: In this study, equilibrium Sn isotope fractionation among 13 Sn-bearing minerals was evaluated using first-principles calculations. The results showed that under equilibrium, the preference of heavy Sn isotope partitioning decreased in the order of Sn(IV) minerals > Sn(II) minerals > native tin. Stannic silicates were enriched in heavy Sn isotopes, and oxides were enriched in heavy Sn isotopes relative to sulfides.
ACS EARTH AND SPACE CHEMISTRY
(2023)
Article
Chemistry, Physical
Tuong Ha Do, Hien Duy Tong, Khanh-Quang Tran, Evert Jan Meijer, Thuat T. Trinh
Summary: The formation of silicate oligomers in the early stages is crucial for zeolite synthesis, and the pH and hydroxide ions play important roles in regulating the reaction rate and dominant species. This study used molecular dynamics simulations to investigate the formation of silicate species and found that the presence of hydroxide ions not only controlled the pH but also actively participated in the condensation reactions. The results showed that the formation of linear-tetramer and 4-membered rings were the most favorable reactions, with barriers of 71 kJ mol(-1) and 73 kJ mol(-1) respectively. The study also revealed that the excess hydroxide ions stabilized the 4-membered-ring structure and hindered the dissolution of smaller silicate structures.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
V Sinha, D. Sun, E. J. Meijer, T. J. H. Vlugt, A. Bieberle-Hutter
Summary: Hematite, a cheap and sustainable semiconductor material, is suitable for studying OER. A multiscale computational model connecting thermodynamics and kinetics of reactions at atomic level to experimentally measured quantities provides insights into the design of energy efficient anodes.
FARADAY DISCUSSIONS
(2021)
Article
Nanoscience & Nanotechnology
Yuan Chen, Srikala Pangannaya, Baobao Sun, Cheng Qian, Guangping Sun, Ming Cheng, Chen Lin, Xiancai Lu, Juli Jiang, Leyong Wang
Summary: Stoichiometry-controlled chirality induction was successfully achieved through coassemblies of amphiphilic tetraphenylethylene derivative TPEA, gamma-cyclodextrin (gamma-CD), and water-soluble pillar[5]arene WP5 in aqueous solution. Stoichiometric variation of WP5 was found to be an effective strategy to induce topological transition between the pseudo[4]rotaxane and the vesicular form. Dual chirality induction was triggered from chiral gamma-CD to TPEA (negative ICD1), and then to dynamically racemic WP5 (positive ICD2) in the formation of pseudo[4]rotaxane, while both ICD1 and ICD2 were silent in the vesicular form.
ACS APPLIED BIO MATERIALS
(2021)
Article
Chemistry, Physical
Ngoc Lan Mai, Ha T. Do, Nguyen Hieu Hoang, Anh H. Nguyen, Khanh-Quang Tran, Evert Jan Meijer, Thuat T. Trinh
JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Geochemistry & Geophysics
Xinze Lu, Geoffrey J. Gilleaudeau, Brian Kendall
Summary: The Late Ordovician mass extinction is the first major extinction event in the Phanerozoic, but the reasons for the decline in global biodiversity before the extinction are not well understood.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2024)
Article
Geochemistry & Geophysics
Junyao Kang, Daniel D. Gregory, Benjamin Gill, Shiqiang Huang, Changxin Lai, Zhaoshan Chang, Huan Cui, Ivan Belousov, Shuhai Xiao
Summary: Sedimentary pyrite is an important geological archive, but it can be altered by diagenetic and hydrothermal processes. This study successfully trained machine learning algorithms to distinguish pyrite origins using trace element data. The approach was validated and applied to identify the origins of pyrite in two sedimentary successions in South China.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2024)