Article
Engineering, Environmental
Krzysztof Kusmierek, Wojciech Kicinski, Malgorzata Norek, Marek Polanski, Boguslaw Budner
Summary: Heteroatom-doped carbon gels were studied for their efficiency in oxidative and adsorptive degradation/removal of phenolic compounds. It was found that the co-doping of iron and nitrogen in carbon materials enhances catalytic properties and adsorption capacity, leading to more efficient degradation of organic pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
Dan Li, Zepeng Zhao, Junliang Guo, Rujun Shen, Feigao Xu
Summary: Magnetic nano Fe3O4/CeO2/TiO2 composites were synthesized and their Fenton catalytic activity for the degradation of AO-7 dye under UV light was studied. The best activity was observed in the composite with a weight ratio of 1:1:1 (Fe1Ce1Ti1). The Fe1Ce1Ti1 composite showed good reusability and the .OH free radicals were mainly formed on its surface.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Xing Li, Jun Li, Xixian Yang, Lisheng Deng, Tao Zeng, Hongyu Huang
Summary: A porous MnO2/CeO2 composite catalyst was prepared via the template method and showed high catalytic activity and stability for the decomposition of HCHO. It can be used effectively for the removal of harmful HCHO from the air.
MATERIALS RESEARCH BULLETIN
(2022)
Review
Environmental Sciences
Amir Zada, Muhammad Khan, Muhammad Asim Khan, Qasim Khan, Aziz Habibi-Yangjeh, Alei Dang, Muhammad Maqbool
Summary: Chlorophenols are significant environmental pollutants that pose serious threats to aquatic and terrestrial organisms. Effective removal through photocatalytic degradation is crucial, with factors like pH and anion presence affecting the process. Production of different oxidizing agents and the degradation mechanism of chlorophenols by various photocatalysts have been discussed for future environmental protection measures.
ENVIRONMENTAL RESEARCH
(2021)
Article
Materials Science, Composites
Shaoju Jian, Fengshuo Shi, Rubei Hu, Yifei Liu, Yuhuang Chen, Wenlong Jiang, Xinlu Yuan, Jiapeng Hu, Kaiyin Zhang, Shaohua Jiang, Weisen Yang, Gaigai Duan
Summary: La2O3-CeO2-Fe3O4 composite nanofibers (LCF NFs) fabricated via facile electrospinning - calcination approach showed good adsorption performance and regeneration ability for defluoridation from aqueous solution.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Yu Shi, Panfeng Ma, Lin Qiao, Bingtao Liu
Summary: MnFe2O4 catalyst prepared by chemical co-precipitation method exhibited high catalytic activity in the degradation of p-chloroaniline (PCA) in neutral pH solution. The elevated reaction temperature was beneficial to the degradation of PCA. Sulfate radicals, hydroxyl radicals, and singlet oxygen may all be involved in the degradation of PCA.
Article
Materials Science, Multidisciplinary
Dan Wang, Fang-Xin Yin, Bei Cheng, Yang Xia, Jia-Guo Yu, Wing-Kei Ho
Summary: In this study, CeO2 hollow spheres were prepared using a template method and showed the best photocatalytic performance when annealed at 600 degrees Celsius, attributed to their large specific surface areas, high crystallization, and excellent light scattering ability. Active species trapping experiments indicated that superoxide anion and hole were the dominant contributors to tetracycline degradation.
Article
Materials Science, Composites
Shaoju Jian, Fengshuo Shi, Rubei Hu, Yifei Liu, Yuhuang Chen, Wenlong Jiang, Xinlu Yuan, Jiapeng Hu, Kaiyin Zhang, Shaohua Jiang, Weisen Yang, Gaigai Duan
Summary: La2O3-CeO2-Fe3O4 composite nanofibers (LCF NFs) were successfully fabricated via electrospinning-calcination approach and showed promising defluoridation capabilities under various conditions, making them a stable and efficient candidate for wastewater treatment.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Zhen Wang, Ying Fang, Ying Yang, Bo Qiu, Tong Zhang, Haipu Li, Wenbo Zhao
Summary: This study successfully synthesized a novel nanocomposite ε-MnO2@MIL-100(Fe) for simultaneous oxidation and adsorption of p-Arsanilic acid (p-ASA), demonstrating excellent removal performance. Manganese oxide was responsible for the oxidation of p-ASA, while MIL-100(Fe) played a dominant role in in-situ adsorption through coordination, hydrogen bonding, and π-π stacking. The composite showed high removal efficiency for p-ASA in a wide pH range and was stable in the presence of co-existing substances, making it suitable for p-ASA removal in natural water bodies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Qirui Wang, Pengfei Xiao
Summary: In this study, a self-synthesized hetero-geneous CuFe2O4-MoS2@BC composite was prepared as an activator for peroxymonosulfate (PMS) to degrade tetracycline (TC). The obtained composite showed excellent surface properties, catalytic stability, and anti-interference ability. It achieved high degradation efficiency even under various environmental conditions. The CuFe2O4-MoS2@BC composite has great potential for the treatment of tetracycline antibiotic wastewater using activated PMS.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yun Ji, Zhelin Song, Yu Xu, Yanlin Zhang
Summary: In this study, Cu-Fe LDHs/Bi2WO6 composite effectively degraded Rhodamine B (RhB) in the photo-Fenton process, eliminating the limitation of acidic pH value and showing excellent catalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Environmental Sciences
Basma Al-Najar, Ayman H. Kamel, Hanan Albuflasa, Nicholas P. Hankins
Summary: This article reviews the application of spinel ferrite nanomaterials (SFNs) in the removal of chlorophenols (CPs). It highlights the unique crystal structure, optical and magnetic properties of SFNs and their potential in CP removal. The article also discusses the structure and properties of SFN, as well as the factors that affect its efficiency in CP removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Xi Zhang, Matthias Verbist, Mohammadreza Kamali, Yongtao Xue, Yong Liu, Pengrui Jin, Maria Elisabete V. Costa, Lise Appels, Deirdre Cabooter, Raf Dewil
Summary: This study investigated the degradation kinetics and mechanisms of different types of recalcitrant organic pollutants (ROPs) using a biochar-CuO/periodate (PI) system. The study found that the pH had significant effects on the formation of oxidative species, with the system being most efficient at pH 7. The system was able to efficiently remove methylene blue (MB) at pH 7, while under highly alkaline pH values, the degradation kinetics of the pollutant were lower. The system maintained its efficiency for other types of ROPs and could detoxify MB.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Zhihui Chen, Jun Yao, Bo Ma, Bang Liu, Jonghyok Kim, Hao Li, Xiaozhe Zhu, Chenchen Zhao, Meseret Amde
Summary: This study proposes a biocatalytic method for the degradation of chlorophenols using enzyme-nanoparticle conjugated biocatalyst. The laccase from Trametes versicolor was immobilized on amino-functionalized superparamagnetic Fe3O4@SiO2-NH2 nanoparticles, which demonstrated improved stability and reusability compared to free laccase. The degradation efficiency of 2,4-dichlorophenol (2,4-DCP) and 2,4,6-trichlorophenol (2,4,6-TCP) remained high even after multiple cycles. The study also identified the intermediate products and degradation pathway of chlorophenols. These findings suggest that this clean biotechnology could be an alternative method for the remediation of chlorophenol-contaminated water matrices.
Article
Engineering, Chemical
Jiangya Ma, Rui Zhang, Wei Xia, Yanli Kong, Yong Nie, Yahua Zhou, Chi Zhang
Summary: A novel covalently bonded composite coagulant CAFM was synthesized through UV initiation, which showed high efficiency in removing algae and turbidity from water. The use of CAFM resulted in minimal residual concentrations and the formation of compact algae flocs, highlighting its importance in drinking water treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
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)