Article
Materials Science, Multidisciplinary
M. Gonzalez-Ildelfonso, J. Escobar, E. Gordillo-Cruz, P. del Angel, V. A. Suarez-Toriello, J. A. De los Reyes
Summary: In this study, researchers successfully achieved deep removal of refractory dibenzothiophene using catalysts supported on Al2O3 with noble metal modification. Calcined catalysts showed better catalytic activity, while Ru-doped catalysts were detrimental to catalytic activity when not calcined before activation.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Chemical
Hailu Fu, Lingling Zhong, Ziyao Yu, Wenxiang Liu, Mona A. Abdel-Fatah, Jinye Li, Ming Zhang, Jie Yu, Wenjie Dong, Sang Soo Lee
Summary: This study modifies natural zeolite through impregnation and calcination to improve the efficiency of ammonium removal from surface water. The modified zeolite shows enhanced ammonium removal capability through impregnation and calcination, and can be regenerated through a sodium chloride solution. The modified zeolite adsorbs ammonium through multiple mechanisms, and the adsorption process is diffusion-controlled and endothermic.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Maryam Fayazi, Masoud Ghanei-Motlagh
Summary: The PET-AC/Cu(II)-A beads prepared by cross-linking technology showed high adsorption capacity, reusability, and potential as a desulfurization adsorbent for fuels.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Tasrin Shahnaz, Das Bedadeep, Selvaraju Narayanasamy
Summary: In this study, ethylenediamine tetraacetic acid embedded nanocellulose (NCED) was used for the adsorptive removal of methylene blue (MB) from simulated wastewater. The study involved morphological characterizations and fingerprinting analysis of the material, as well as experimental design and analysis of parameters using central composite design and response surface methodology. The results showed that NCED achieved a maximum removal percentage of 91.14% for MB, with the adsorption process fitting well with the Langmuir isotherm and Elovich kinetics model. Thermodynamics study confirmed the spontaneity and endothermic nature of the process. Therefore, NCED could serve as a cost-effective and eco-friendly alternative for the removal of toxic dyes from wastewater.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Environmental Sciences
Muhammad Zaheer Afzal, Salma Hameed, Muhammad Mohiuddin, Asim Abbasi
Summary: This study focuses on the simultaneous removal of three different fluoroquinolones from water using hydrogel beads of humic acid coated biochar and chitosan. The adsorption capacity of the adsorbent for the fluoroquinolones was determined, and it was found that the adsorbent was effective in removing the targeted drugs. Furthermore, the adsorbent showed good performance in desorption and regeneration processes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Esmail Mohseni, Zahra Hamdi, Ali Parvizimehr, Abdolrasoul Rahmani
Summary: In this study, vermiculite clay modified with calcium oxide was used as a composite adsorbent for the removal of DBT and BT from model fuels. The adsorption capacity and physicochemical properties of the composite were investigated.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Polymer Science
Fouzia Mashkoor, Mohd Shoeb, Changyoon Jeong
Summary: The presence of heavy metals with high acute toxicity in wastewater poses a substantial risk to both the environment and human health. This study developed Alg@Mag/PPy NCs as a nanocomposite for the efficient removal of mercury(II) from synthetic wastewater through adsorption. The results demonstrated that Alg@Mag/PPy NCs exhibited high removal efficiency under optimal conditions.
Article
Chemistry, Physical
Thi Ngan Vu, Pham Hai Phong Le, Thi Thuy Trang Truong, Phuong Thao Nguyen, Thi Diu Dinh, Trung Kien Tran, Thu Ha Hoang, Tien Duc Pham
Summary: This study investigated the adsorption of lysozyme on nanosilica and its applications for removal of levofloxacin antibiotic and bacteria E.coli and Bacillus in water. The optimal conditions for lysozyme adsorption and removal of levofloxacin were determined. The results showed that lysozyme modified nanosilica had a significant effect on the removal of antibiotic and bacteria.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yu Xiang Liu, Qiao Jing Lin, Fei Fei Dai, Yan Xue Xue, Ding Ling Gao, Jian Hua Chen, Wei Wei Lin, Qian Yang
Summary: In this study, Cu+ and phosphotungstic acid (PTA) were introduced into Co-MOF to prepare Co-MOF-Cu+/PTA through post-modification method. The Co-MOF-Cu+/PTA showed significantly enhanced adsorption capacity for dibenzothiophene (DBT) compared to Co-MOF. The introduction of Cu+ served as active sites for pi-pi interaction and sulfur-metal (S-M) adsorption, while Co2+ and PTA adsorbed DBT through acid-base interaction. The Co-MOF-Cu+/PTA exhibited spontaneous and endothermic adsorption behavior, with excellent selectivity and regeneration performance.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Engineering, Environmental
Thi Mai Viet Ngo, Thi Hien Lan Nguyen, Xuan Truong Mai, Thi Hong Nguyet Pham, Thi Thu Trang Nguyen, Tien Duc Pham
Summary: The study investigates the removal of cationic dyes from water using a novel material formed by strong polyanion, polystyrene sulfonate (PSS), on laterite soil. The modified soil, called polymer modified laterite (PML), showed high efficiency in removing crystal violet (CV) and methylene blue (MB), achieving removal rates over 92% and 83% respectively under optimal conditions. The adsorption isotherms and thermodynamic study indicated an exothermic process with Langmuir model conformity and confirmed electrostatic interactions as the key mechanism.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Ceramics
Esneyder Puello-Polo, Noemi R. Checca-Huaman, Elvis O. Lopez, Carlos A. T. Toloza, Franklin J. Mendez
Summary: The impact of the synthesis method on the properties of the Al2O3-Ga2O3 sample was investigated. Ga loading resulted in an increase in surface area and pore volume, but a decrease in pore size. XRD analysis confirmed the formation of γ-Al2O3 with Ga atoms incorporated into the structure. The adsorption affinity of the adsorbent was strongest for BT and weakest for DBT.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Xu Zhao, Yucheng Su, Zhiwu Lei, Hongqiang Wang, Eming Hu, Fang Hu, Qingliang Wang, Lechang Xu, Shiyao Fan, Xinwei Liu, Xuanzhang Hao
Summary: In this study, Fe-activated carbon was prepared from lotus leaf as raw material and its adsorption performance was tested. The results showed that the modified activated carbon had better adsorption effect under neutral conditions and exhibited improved selectivity. Characterization analysis revealed that the modified activated carbon had increased pore volume, specific surface area, and zero charges, while the types of functional groups were reduced. The iron reacted with functional groups, providing ion exchange sites for the adsorption of beryllium. The adsorption process was found to be spontaneous and endothermic chemical adsorption.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Nan Wang, Meghali Bora, Song Hao, Kai Tao, Jin Wu, Liangxing Hu, Jianjun Liao, Shiwei Lin, Michael S. Triantafyllou, Xiaogan Li
Summary: This paper presents the development of a compact, three-electrode electrochemical device functionalized by a biocompatible layer of hyaluronic acid methacrylate (HAMA) hydrogel for the adsorptive removal of Pb(II) ions in aqueous solutions. Both molecular interactions and electrochemical accumulation contribute to the adsorption capability of the device. The device shows high adsorption rate and reproducible performance, making it potentially useful for the rapid remediation of Pb(II) contamination.
Article
Engineering, Environmental
Rickson Jun Jay Chia, Woei Jye Lau, Norhaniza Yusof, Ahmad Fauzi Ismail, Ana Loncaric Bozic
Summary: Researchers enhanced the performance of MIL-100(Fe) for As(V) adsorption by introducing benzoic acid as a modulator, creating vacancy defects in the structure. The modified adsorbent showed larger surface area and pore size, resulting in improved adsorption capacity for As(V). However, the presence of competing compounds such as carbonate and phosphate anions needs to be addressed for effective adsorption.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Mahmoud A. Ahmed, Mohamed A. Ahmed, Ashraf A. Mohamed
Summary: In this study, a magnetic CuFe2O4-graphene oxide (GO) modified with polyvinylpyrrolidone (PVP) ternary nanocomposite (PMGO) was prepared and successfully used for the removal of tetracycline (TC) as a representative pharmaceutical compound. The defect sites of GO layers served as nucleation centers for PVP and CuFe2O4 nanoparticles, improving the TC removal efficiency. The PMGO showed excellent performance in the presence of coexisting species and can be reused for practical applications.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)