Article
Chemistry, Physical
Xianyong Hong, Sidi Zhu, Mingzhu Xia, Ping Du, Fengyun Wang
Summary: Severe water eutrophication caused by excessive phosphorus release has become a global environmental issue. In this study, quercetin modified MnFe layered double hydrotalcite three-dimensional composites encapsulated by lanthanum nanoparticles were prepared and showed outstanding phosphorus adsorption performance. The adsorbent maintained high adsorption capacity over a wide range of pH. Theoretical studies revealed the active sites of the reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(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
Green & Sustainable Science & Technology
Mingyao Yuan, Shangkai Qiu, Mengmeng Li, Zhao Di, Menghan Feng, Changbin Guo, Weilin Fu, Keqiang Zhang, Wenxian Hu, Feng Wang
Summary: In this study, the adsorption capacity of layered bimetallic hydroxide (LDH) for phosphate removal was enhanced by loading lanthanum (La) metal. The adsorption capacity of La-loaded LDH was 11.4% higher than that of normal LDH. The improvement in adsorption capacity was observed in a wide pH range (3-11) and in the presence of various coexisting ions. This study proposes a novel technique for enhancing LDH adsorption capability with potential applications in water treatment.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biotechnology & Applied Microbiology
Nuo Chen, Tianhui Zhao, Zhenyu Li, Xianming Yue, Guolian Li, Jiamei Zhang, Xing Chen, Haibing Li, Jing Liu, Fazhi Xie, Zhi Tang, Yulin Song, Rongrong Chen, Jie Gan, Ying Li
Summary: A co-precipitation approach was used to produce a novel iron-calcium-lanthanum (Fe-Ca-La) trimetallic composite for efficient phosphate removal from water. The composite exhibited an amorphous structure and showed a high adsorption capacity for phosphate at acidic conditions. The adsorption process was highly spontaneous and endothermic. The composite also demonstrated good resistance to interference from other anions.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Engineering, Chemical
Shweta Sharma, Gaurav Sharma, Amit Kumar, Pooja Dhiman, Tahani Saad AlGarni, Mu Naushad, Zeid A. ALOthman, Florian J. Stadler
Summary: The present study successfully designed a novel porous Zn/Fe LDH adsorbent using a combination of co-precipitation, hydrothermal, and thermal treatment methods. Intercalating H2O2 into LDH followed by thermal treatment created pores in the LDH layers, leading to increased surface area. The synthesized adsorbent showed a high adsorption capacity for the antibiotic ciprofloxacin, following Freundlich isotherm model and pseudo-second-order kinetic model, with C pi-metal interactions, hydrogen bonding, and electrostatic interactions playing major roles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Kevin George Kelly Vargas, Zhiming Qi, Victor Quezada-Novoa
Summary: In order to mitigate harmful algae blooms, chemicals are used to immobilize phosphate in water. Recent studies have shown that metal-organic frameworks (MOFs) serve as efficient solid adsorbents for various water pollutants, including phosphate. This study compared the performance of low-cost MOFs with commercial adsorbents in the context of algae blooms, revealing that the MOFs exhibited superior adsorption kinetics and capacity over a wide concentration range. Additionally, the cost-effectiveness and minimal linker losses of the MOFs in dilute phosphate solutions position them as viable competitors to commercial adsorbents.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Guiyin Wang, Xiangzhi Yue, Shirong Zhang, Qing Geng, Jingjie Zheng, Xiaoxun Xu, Ting Li, Yulin Pu, Yun Li, Yongxia Jia, Guochun Lv, Changlian Xu, Ganxue Wu, Zhanbiao Yang, Zhang Cheng
Summary: The study investigates the removal and recovery of phosphate from wastewater using chitosan-encapsulated bimetallic lanthanum and iron oxides composites. The results show that the composites have a high adsorption capacity and fast adsorption rate, and exhibit good stability towards co-existing substances in the environment. Therefore, the composites are promising candidates for efficient removal and recovery of phosphate from wastewater.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Carina Luengo, Nicolas A. Lopez, Cinthia P. Ramos, Marcelo J. Avena
Summary: The mechanisms of arsenate adsorption onto Fe-LDH were studied, revealing that Fe-LDH had excellent adsorption capacity for arsenate and could meet the recommended limit. Despite its dissolution at low pH, Fe-LDH showed high adsorption efficiency, low cost, and green and sustainable characteristics.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Mengmeng Li, Yuan Luo, Di Zhao, Shangkai Qiu, Lisheng Zhang, Keqiang Zhang, Chun Song, Feng Wang
Summary: This study investigated the effects of different La/Fe oxide composites on phosphate adsorption. The results showed that temperature, specific surface area, and crystal type were the main factors affecting adsorption capacity, while pH and the addition of CO3(2-) had a negative impact on adsorption capacity. The adsorption mechanism involved surface precipitation, electrostatic attraction, and complexation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Yongyi Liu, Si Chen, Kanglu Li, Jielin Wang, Peng Chen, Hong Wang, Jieyuan Li, Fan Dong
Summary: This study revealed that the Zn-Ti-layered double hydroxide (ZT-LDH) photocatalyst generated fewer intermediates, showed higher efficiency and stability in toluene degradation, with benzaldehyde and benzoic acid being the main intermediates. Hydrogen atoms on the hydroxyl groups in the LDH selectively attracted oxygen atoms in the carbon-oxygen double bond of the two major intermediates, facilitating their adsorption and activation on ZT-LDH. The surface electronic structure of ZT-LDH was found to facilitate the ring-opening reaction of the two major intermediates, ultimately maintaining high activity and stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Zhemin Zou, Jie Wang, Jun Qu, Panfei Dong, Zhigao Xu
Summary: In this study, Zn-Al LDH precursor was successfully synthesized and demonstrated promising adsorption capacity for rare earth elements (REEs) recovery. The adsorbed REEs on Zn-Al LDH were hard to be desorbed, making it a potentially valuable adsorbent for practical application in REEs recovery.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Agricultural Engineering
Tingting Yang, Yingming Xu, Qingqing Huang, Yuebing Sun, Xuefeng Liang, Lin Wang, Xu Qin, Lijie Zhao
Summary: In this study, Fe/Zn-RBC and Fe/Zn-DBC adsorbents were successfully prepared for Cd(II) removal in water, showing significantly higher sorption capacities compared to unmodified RBC and DBC. The adsorption mechanisms of Fe/Zn-BC on Cd(II) may involve precipitation and chemical binding, providing potential applications in waste resource utilization.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yanbo Zeng, Fengqin Chang, Guangzhi Hu, Yang Zhang, Donglin Li, Hui Li, Thomas Wagberg, Hucai Zhang
Summary: A novel method of producing clean lanthanum nano-aerosols by spark ablation was proposed in this study, which can be used for the hydrothermal synthesis of PP-La, a new material with high phosphate adsorption capacity. The results confirm the potential application of PP-La in treating eutrophication in water bodies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Jie Yang, Mingliang Zhang, Haixia Wang, Junbing Xue, Qi Lv, Guibin Pang, Despo Kassinos
Summary: A novel Ca-modified biochar was prepared by co-pyrolysis of eggshell and sewage sludge for phosphorus recovery from wastewater. The biochar exhibited excellent phosphate adsorption and heavy metal removal abilities, and could also serve as a slow-release P fertilizer to promote plant growth.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Prabhat Kumar Patel, Lalit Mohan Pandey, Ramagopal V. S. Uppaluri
Summary: The article investigates the effectiveness of synthesized chitosan polyvinyl alcohol derivatives for cyclic multi-heavy metal removal. The derivative resin combines the advantages of chitosan and polyvinyl alcohol for removing multi-heavy metals from Zn dominant simulated industrial wastewater. FTIR and XRD results confirm a strong interaction between PVA and chitosan. Batch adsorption studies examine different adsorbent-adsorbate ratios, contact periods, and initial concentrations to determine optimal conditions. The high CSPVA derivative resin is found to be highly efficient and useful for removing Zn, Fe, and Pb from wastewater. The study provides confidence in the relevance of the resin for treating industrial multi-heavy metal containing wastewater systems.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biotechnology & Applied Microbiology
Jyotsnarani Jena, Ravindra Kumar, Md Saifuddin, Anshuman Dixit, Trupti Das
BIOCHEMICAL ENGINEERING JOURNAL
(2016)
Article
Chemistry, Multidisciplinary
Abdul Aziz, Muhammad Sajjad, Suho Kim, Md Saifuddin, Kwang Soo Kim
APPLIED SCIENCES-BASEL
(2018)
Article
Engineering, Environmental
Md Saifuddin, Jiyeol Bae, Kwang Soo Kim
Article
Chemistry, Multidisciplinary
Md Saifuddin, Suho Kim, Abdul Aziz, Kwang Soo Kim
APPLIED SCIENCES-BASEL
(2019)
Article
Multidisciplinary Sciences
Nishesh Kumar Gupta, Yasaman Ghaffari, Suho Kim, Jiyeol Bae, Kwang Soo Kim, Md Saifuddin
SCIENTIFIC REPORTS
(2020)
Article
Engineering, Chemical
Yasaman Ghaffari, Soyoung Beak, Jiyeol Bae, Suho Kim, Md Saifuddin, Kwang Soo Kim
Summary: A series of novel mesoporous Mn2O3-Fe2O3 @ SiO2 nanocomposites were successfully synthesized for the first time using the sol-gel/combustion method with urea as a fuel. The introduction of urea increased the surface area and enhanced the nanocomposite structure, resulting in high adsorption efficiency and photocatalytic activity for the degradation of Methylene blue.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yasaman Ghaffari, Soyoung Beak, Jiyeol Bae, Md Saifuddin, Kwang Soo Kim
Summary: This study investigates the effect of UV treatment on metal oxide-silica nanocomposites and their performance in removing erythromycin pollutants. The results show that UV treatment enhances the nanocomposites' performance by modifying their structure, leading to improved adsorption and oxidation mechanisms. This research could lay a foundation for practical approaches in regenerating nanomaterials and effectively removing organic pollutants from aquatic environments.
Article
Engineering, Environmental
Yerim Lee, Md Saifuddin, Seon Yeong Park, Chang Gyun Kim
Summary: In this study, the disinfection efficiency of ozone treatment on Edwardsiella tarda, Streptococcus mitis, and Vibrio harveyi in seawater was evaluated. The ecotoxicity of total residual oxidants (TROs) generated during the treatment process was assessed using bioluminescence variation in Aliivibrio fischeri. The interaction between microplastics and bacteria in terms of inactivation, ecotoxicity, and TROs concentration was also analyzed.
ENVIRONMENTAL ENGINEERING RESEARCH
(2023)
Article
Environmental Sciences
Md Saifuddin, Yasaman Ghaffari, Seon Yeong Park, Chang Gyun Kim
Summary: In this study, TiO2 nanoparticles supported on amorphous carbon with nanoporosity were used as a photocatalyst to degrade polypropylene. The results showed that this method can effectively degrade polypropylene and has the potential to be used for degrading other types of polymers.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Yasaman Ghaffari, Md Saifuddin, Suho Kim, Soyoung Beak, Jiyeol Bae, Kwang Soo Kim
Summary: A series of novel MnxFey@SiO2 (x,y = 1-20%) nanocomposites were synthesized for the first time, and their physicochemical properties were observed by various characterization methods. The results showed that increasing Fe and Mn content improved the morphology of the nanocomposites. Interestingly, the BET results demonstrated different behavior, indicating that one metal could be more critical in controlling the properties than the other. Moreover, the precursor ratio had a more tangible effect on the surface area than the precursor content. Among all synthesized nanocomposites, Mn1Fe5@SiO2 exhibited the highest surface area and achieved complete removal of the target pollutant at neutral pH.
Article
Chemistry, Physical
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
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
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
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
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
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
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
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
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
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
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
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
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
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
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)