4.7 Article

Decontamination of U(VI) from nZVI/CNF composites investigated by batch, spectroscopic and modeling techniques

Journal

JOURNAL OF MOLECULAR LIQUIDS
Volume 237, Issue -, Pages 1-9

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2017.04.084

Keywords

nZVI; Carbon nanofibers; U(VI); EXAFS; Adsorption mechanism

Funding

  1. Natural Science Foundation of China [21207092, 21577093]
  2. Science and Technology Project of Shaoxing [2014B70041]

Ask authors/readers for more resources

The nZVI/CNF composites were synthesized by borohydride reduction of ferrous salts in the CNF suspension. The characteristic results indicated that metallic Fe-0 was uniformly dispersed the surface of CNFs. The decontamination mechanism of U(VI) from nZVI/CNF composites was investigated by batch, XPS, EXAFS and modeling techniques. The batch experiments indicated that removal amount of U(VI) on nZVI/CNF was significantly higher than that of single nZVI, whereas reduction amount of U(VI) to U(IV) on nZVI at pH> 6.0 was significantly higher than that of nZVI/CNF. The EXAFS spectra of U-nZVI at pH 7.0 was similar to the (UO2)-O-(Iv)(s), whereas the EXAFS spectra of U-nZVI/CNF at 2.98 A can be satisfactorily fitted by U-U shell, which was further demonstrated by XANES analysis and surface complexation modeling. The diffuse layer model gave better fits to U(VI) removal on nZVI/CNFs composites, whereas underestimation of U(VI) removal on nZVI was observed at pH > 5.0 due to the presence of reductive precipitation. These findings indicated that nZVI-based composites presented the higher adsorption performance and the excellent reduction capacity for U(VI) under permeable reactive barrier system. (C) 2017 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Engineering, Environmental

Smart construction of mesoporous carbon templated hierarchical Mg-Al and Ni-Al layered double hydroxides for remarkably enhanced U(VI) management

Ling Yin, Yezi Hu, Ran Ma, Tao Wen, Xiangxue Wang, Baowei Hu, Zhimin Yu, Tasawar Hayat, Ahmed Alsaedi, Xiangke Wang

CHEMICAL ENGINEERING JOURNAL (2019)

Article Chemistry, Physical

Summary of ISO standard 20289: Total reflection X-ray fluorescence analysis of water

Laura Borgese, Fabjola Bilo, Stefania Federici, Eva Margui, Thomas Hase, Yuying Huang, Burkhard Beckhoff, Laura E. Depero

SURFACE AND INTERFACE ANALYSIS (2020)

Article Spectroscopy

A wavelength-dispersive X-ray spectrometer for in/ex situ resonant inelastic X-ray scattering studies

Bingbao Mei, Songqi Gu, Xianlong Du, Zhongliang Li, Hanjie Cao, Fei Song, Yuying Huang, Zheng Jiang

X-RAY SPECTROMETRY (2020)

Article Chemistry, Inorganic & Nuclear

Unexpected Roles of Alkali-Metal Cations in the Assembly of Low-Valent Uranium Sulfate Molecular Complexes

Zenghui Yue, Xiaofeng Guo, Mei-Ling Feng, Yue-Jian Lin, Yu Ju, Xiao Lin, Zhi-Hui Zhang, Xiaojing Guo, Jian Lin, Yu-Ying Huang, Jian-Qiang Wang

INORGANIC CHEMISTRY (2020)

Article Materials Science, Multidisciplinary

Local structure of uranium in polycrystalline α-U2N3+δ film probed by X-ray absorption spectroscopy

Hongliang Bao, Huoping Zhong, Yin Hu, Jian Lin, Haisheng Yu, Jingyuan Ma, Zhengfeng Tang, Yuan Qian, Yuying Huang, Ke-Zhao Liu, Jian-Qiang Wang

JOURNAL OF NUCLEAR MATERIALS (2020)

Article Chemistry, Applied

A tunable alkaline/oxidative process for cellulose nanofibrils exhibiting different morphological, crystalline properties

Liangyi Song, Xiaran Miao, Xiuhong Li, Fenggang Bian, Jinyou Lin, Yuying Huang

Summary: This study presents a two-step alkali/oxidation process to efficiently convert waste sugarcane bagasse into cellulose nanofibrils with controlled morphologies. By adjusting the concentrations of NaOH and NaClO, the cellulose content, crystallinity index, and fiber length can be effectively tailored, allowing for the production of CNF with different properties and applications.

CARBOHYDRATE POLYMERS (2021)

Article Chemistry, Multidisciplinary

Atomic Indium Catalysts for Switching CO2 Electroreduction Products from Formate to CO

Weiwei Guo, Xingxing Tan, Jiahui Bi, Liang Xu, Dexin Yang, Chunjun Chen, Qinggong Zhu, Jun Ma, Akhil Tayal, Jingyuan Ma, Yuying Huang, Xiaofu Sun, Shoujie Liu, Buxing Han

Summary: The use of atomic In catalysts for CO2 electroreduction to CO shows high efficiency and selectivity, offering a promising method to reduce greenhouse gas emissions. The catalyst demonstrates outstanding faradaic efficiency, total current density, and turnover frequency, along with remarkable stability.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Chemistry, Multidisciplinary

Highly Efficient CO2 Electroreduction to Methanol through Atomically Dispersed Sn Coupled with Defective CuO Catalysts

Weiwei Guo, Shoujie Liu, Xingxing Tan, Ruizhi Wu, Xupeng Yan, Chunjun Chen, Qinggong Zhu, Lirong Zheng, Jingyuan Ma, Jing Zhang, Yuying Huang, Xiaofu Sun, Buxing Han

Summary: This study reports a new catalyst design with atomically dispersed Sn sites anchored on defective CuO catalysts for CO2 electroreduction to methanol, demonstrating high efficiency and stability in H-cells.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Boosting CO2 Electroreduction over a Cadmium Single-Atom Catalyst by Tuning of the Axial Coordination Structure

Yahui Wu, Chunjun Chen, Xupeng Yan, Xiaofu Sun, Qinggong Zhu, Pengsong Li, Yiming Li, Shoujie Liu, Jingyuan Ma, Yuying Huang, Buxing Han

Summary: Guided by first-principles calculations, it was discovered that Cd single-atom catalysts have excellent performance in activating CO2, and the introduction of axial coordination structure can further decrease the free energy barrier of CO2 reduction while suppressing the hydrogen evolution reaction. The designed and synthesized novel Cd SAC showed outstanding performance in CO2 electroreduction to CO, achieving a high faradaic efficiency and turnover frequency. This work serves as a successful example of designing highly efficient catalysts guided by theoretical calculations.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Nuclear Science & Technology

In situ studies on the positive and negative effects of 1,8-diiodoctane on the device performance and morphology evolution of organic solar cells

Da Huang, Chun-Xia Hong, Jian-Hua Han, Nie Zhao, Xiu-Hong Li, Xi-Chang Bao, Feng-Gang Bian, Yu-Ying Huang, Chun-Ming Yang

Summary: The study found that PC71BM molecules dissolved by DIO have a nucleating effect on PTB7-Th, promoting the crystallization of PTB7-Th and reducing phase separation. Additionally, a significant evolution of lattice space and crystal coherence length was observed during thermal annealing.

NUCLEAR SCIENCE AND TECHNIQUES (2021)

Article Chemistry, Physical

In Situ Grazing-Incidence SAXS Investigation of Thermal-Induced Self-Assembly Process of PS-b-PMMA Films Deposited on Surface-Modified Substrate

Xiaokang Sun, Kai Liu, Nie Zhao, Fenggang Bian, Chunming Yang, Yuying Huang

Summary: In this study, the morphological evolution of block copolymer films during the thermal-induced self-assembly process was investigated. It was found that the formation of ordered structure in the films was mainly determined by phase separation of block molecules followed by growth of grains in the nanodomain. Additionally, better-order nanodomains were obtained with thermal annealing at a faster heating rate.

JOURNAL OF PHYSICAL CHEMISTRY B (2022)

Article Materials Science, Characterization & Testing

Free radical decay and micro-structure evolution of PVDF membranes in situ irradiated by synchrotron radiation X-ray

Yang Liu, Jingyuan Ma, Weihua Liu, Fenggang Bian, Xiuhong Li, Zhongfeng Tang, Yuying Huang, Feng Tian

Summary: Synchrotron radiation X-ray was used as both the irradiation source and testing tool for PVDF membranes. The structural evolution of the PVDF membranes under irradiation was analyzed using in-situ and ex-situ characterization methods. The study demonstrated that the synchrotron radiation X-ray destroyed the long periodic structure and crystalline region of the PVDF membranes, leading to a decline in crystallinity.

POLYMER TESTING (2022)

Article Instruments & Instrumentation

A novel in situ sample environment setup for combined small angle x-ray scattering (SAXS), wide-angle x-ray scattering (WAXS), and Fourier transform infrared spectrometer (FTIR) simultaneous measurement

Yang Liu, Feng Tian, Ping Zhou, Huachun Zhu, Jiajia Zhong, Min Chen, Xiuhong Li, Yuying Huang, Jingyuan Ma, Fenggang Bian

Summary: Developing the synchrotron radiation experiment method based on combined technology provides more insights into the formation mechanism and properties of new materials. A new combined small-angle x-ray scattering/wide-angle x-ray scattering/Fourier-transform infrared spectroscopy (SAXS/WAXS/FTIR) setup was established to simultaneously obtain x-ray and FTIR signals from the same sample. This setup allows real-time observation of the microstructure evolution during the synthesis of composite materials at atomic and molecular levels.

REVIEW OF SCIENTIFIC INSTRUMENTS (2023)

Article Chemistry, Multidisciplinary

Quasi-square-shaped cadmium hydroxide nanocatalysts for electrochemical CO2 reduction with high efficiency

Chunjun Chen, Xupeng Yan, Ruizhi Wu, Yahui Wu, Qinggong Zhu, Minqiang Hou, Zhaofu Zhang, Honglei Fan, Jun Ma, Yuying Huang, Jingyuan Ma, Xiaofu Sun, Longfei Lin, Shoujie Liu, Buxing Han

Summary: In this study, quasi-square-shaped cadmium hydroxide nanocatalysts were designed for CO2 electroreduction to CO, showing high activity and selectivity with nearly 100% selectivity for CO production at high current density. The outstanding performance of the catalyst is attributed to its unique structure, providing low Cd-O coordination and exposing high activity (002) facet requiring lower energy for CO formation. Adsorption-electrolysis device can help achieve high CO concentration from low concentration CO2.

CHEMICAL SCIENCE (2021)

Article Polymer Science

Decay behavior and stability of free radicals of silk fibroin with alkali/urea pretreatment induced by electron beam irradiation

Hao Zhang, Feng Tian, Haitao Lin, Rongfang Shen, Weihua Liu, Yuying Huang, Zhongfeng Tang

POLYMER DEGRADATION AND STABILITY (2020)

Article Chemistry, Physical

Dimer-parity dependent odd-even effects in photoinduced transitions to cholesteric and twist grain boundary SmC* mesophases: PBG characteristics

Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad

Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Understanding the CO2 capture potential of tetrapropylammonium-based multifunctional deep eutectic solvent via molecular simulation

Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio

Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Theoretical study of the Cu2+-glycine interaction in ammonia and effects

Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie

Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Morphology study of light- and pH-responsive amphiphiles with DSA for detection of nitrobenzene derivatives

Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin

Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Effect of SBS structure on viscosity of SBS-modified asphalt based on molecular dynamics: Insights from shearing phase morphology, adsorption and swelling mechanisms

Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei

Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Vaporization enthalpy of azeotropes by the solution calorimetry method

Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov

Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Deep machine learning, molecular dynamics and experimental studies of liquid Al-Cu-Co alloys

L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev

Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Surface adsorption of adenine on pristine and B/N/O/P-doped coronene as a biosensing substrate for DNA detection- DFT study

R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena

Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Study on the fine particles deposition law in the bronchus of miners affected by dust pollution in the anchor excavation working environment

Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang

Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Unveiling regularities of B12N12-X nanocages as a drug delivery vehicle for the nitrosourea: The influence of periods and groups

Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu

Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Aromatic aldehyde oxidation by hexacyanoferrate(III) catalyzed by Ru(VI) in alkaline medium

C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete

Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Effective removal of hypnotic drug from the aqueous medium through adsorption on graphene oxide magnetic derivatives

Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden

Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

A sensitivity analysis on thermal conductivity of Al2O3-H2O nanofluid: A case based on molecular dynamics and support vector regression method

Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang

Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.

JOURNAL OF MOLECULAR LIQUIDS (2024)

Correction Chemistry, Physical

Canonical partition function and distance dependent correlation functions of a quasi-one-dimensional system of hard disks (vol 387,122572, 2023)

V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk

JOURNAL OF MOLECULAR LIQUIDS (2024)

Article Chemistry, Physical

Modifying optical nonlinearities of ionic liquid crystal glass by adding gold and carbon nanoparticles

Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy

Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.

JOURNAL OF MOLECULAR LIQUIDS (2024)