Article
Chemistry, Multidisciplinary
Sifani Zavahir, Tasneem Elmakki, Nourhan Ismail, Mona Gulied, Hyunwoong Park, Dong Suk Han
Summary: This study demonstrates the successful degradation of a model contaminant, methyl orange, using a titanium nanotube array as a photocatalyst under simulated solar illumination. The nanotube array was synthesized by anodizing a titanium film in an electrolyte medium. The photocatalyst showed remarkable degradation kinetics and maintained its performance over multiple reaction cycles.
Article
Chemistry, Multidisciplinary
Xue-Qiang Yuan, Huan-Yan Xu, Bo Li, Li-Yuan Dai, Wei-Song Wang, Yang Li
Summary: CeO2/Al2O3 composites were prepared by in situ growth method and used as a heterogeneous Fenton-like catalyst for efficient degradation of methyl orange. Porous Al2O3 was prepared by evaporation-sintering method and CeO2 was grown onto it. The phases and morphologies of the composites were analyzed by various techniques. It was found that a higher amount of the porogenic agent improved the Fenton-like reaction efficiency. Singlet oxygen was identified as the main reactive oxygen species responsible for the degradation of methyl orange. The possible mechanism of the Fenton-like reaction catalyzed by CeO2/Al2O3 was proposed and discussed.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Multidisciplinary
Modestas Vainoris, Aliona Nicolenco, Natalia Tsyntsaru, Elizabeth Podlaha-Murphy, Francisco Alcaide, Henrikas Cesiulis
Summary: The textile industry is a major contributor to environmental pollution in many countries, particularly through the discharge of untreated textile dyes into water. This study investigated the use of Fe/Cu catalysts in the heterogeneous Fenton's reaction for degrading high concentrations of methyl orange dye in water. The results show that both the surface area and catalyst loading play a significant role in the effective degradation of the dye. The experimental findings suggest that a solution containing up to 100 mg/L of methyl orange can be successfully decolorized within 90 s at 50 degrees C using porous Fe/Cu catalysts, surpassing current state-of-the-art performance.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xin Zhao, Yusen Su, Andy Berbille, Zhong Lin Wang, Wei Tang
Summary: It has been found that dielectric films modified by inductively coupled plasma etching with argon show higher reactivity and degradation efficiency in contact-electro-catalysis process. The contact angle and specific surface area of the films are non-linearly affected by the etching time. This study suggests that film-based contact-electro-catalysis has potential for scalable applications.
Article
Engineering, Chemical
Do Tra Huong, Nguyen Van Tu, Duong Thi Tu Anh, Nguyen Anh Tien, Tran Thi Kim Ngan, Lam Van Tan
Summary: The study synthesized Fe-Cu materials using chemical plating method and tested their efficiency in removing phenol from aqueous solution. It was found that under certain conditions, a phenol decomposition rate of 92.7% could be achieved, following second-order apparent kinetics equation. Furthermore, Fe-Cu materials showed promising results in treating coking wastewater, with treated wastewater meeting favorable water quality indicators.
Article
Engineering, Environmental
Peng Liu, Dengjie Zhong, Yunlan Xu, Nianbing Zhong, Guangjun He
Summary: Co/Fe co-doped porous graphite carbon (Co/Fe-PGC) nanocomposites were successfully prepared and utilized for the efficient degradation of rhodamine B, achieving high removal rates of color and TOC, ultimately degrading it into harmless CO2 and H2O. The excellent catalytic performance of the catalyst is mainly attributed to the coupling effect between microelectrolysis and Fenton reaction, as well as the promotion of cobalt on electron transport and Fe2+ reduction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Baoying Yang, Shikun Zhang, Yan Gao, Lianqi Huang, Can Yang, Yidong Hou, Jinshui Zhang
Summary: The encapsulation of ZFO with carbons enhances its photocatalytic activity and durability by protecting ZFO from corrosion and metal leaching, facilitating charge separation, and increasing benzene adsorption. The resulting ZFO@C photocatalyst is expected to have broad applications in green synthesis of fine chemicals.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Suying Ding, Xuechang Ren, Renhua Chen, Zhenyu Yang
Summary: CuFe2O4 was prepared by coprecipitation method, and 1T/2H-MoS2/CuFe2O4 composite catalyst (MC-x for short) was first prepared by hydrothermal method. The MC-200 catalyst exhibited the best performance in Phenol degradation, with a degradation rate of 95.8% within 20 min. XPS analysis confirmed that 1T MoS2 promoted the cyclic transformation of Fe3+/Fe2+ and Cu2+/Cu+ in the reaction system. Active radical trapping experiment and ESR showed that SO4•- was the main active substance in MC-200/PMS system. This study provides a new insight into the application of MoS2/spinel ferrite/PMS in wastewater treatment.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Coatings & Films
M. S. Vasilyeva, I. Lukiyanchuk, T. P. Yarovaya, A. Yu Ustinov, P. M. Nedozorov, A. N. Fedorets, O. D. Arefieva
Summary: V-, P-containing coatings were formed on titanium using a one-step plasma electrolytic oxidation method, and were characterized using various techniques. The coatings were found to be enriched with vanadium and phosphorus, with the photocatalytic activity showing significant degradation of the MO dye under UV and visible light irradiation for 180 minutes.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Environmental
Qiang Zhao, Congcong Zhang, Xiaoqiang Tong, Yunling Zou, Yan Li, Fang Wei
Summary: Fe3O4-NPs/orange-peel (MOP) composite was prepared as a magnetic heterogeneous Fenton-like catalyst, demonstrating high efficiency in degrading organic dye wastewater with excellent catalytic stability and easy separation. The composite holds great promise for low-cost and high-efficiency treatment of organic dye wastewater.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Nan Dai, Shuang Yi, Xiaotian Zhang, Li Feng, Hui Ding, Dan Song, Xiaoying Liu, Jinsong Rao, Yuxin Zhang
Summary: A typical adsorption modification method was used to load ferrous ions onto the Laponite@diatomite composite, creating a catalyst with good photo-Fenton performance. The study found that the catalyst can effectively degrade cationic dyes under optimal reaction conditions, and exhibits structural stability and reusability.
APPLIED SURFACE SCIENCE
(2023)
Article
Environmental Sciences
Nahid Hajipour, Mohammad Ghorbanpour, Majid Safajou-jahankhanemlou
Summary: A new adsorbent was synthesized using ion-exchange, which showed high adsorption rate for methyl orange dye and agreed with pseudo-second-order model and Langmuir equation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Ali Boukhemkhem, Samir Hameurlaine, Carmen B. Molina, Carolina Belver, Jorge Bedia, Fathi Chouikh, Nabile Mahamdioua, Khadidja Amouri, Roumaissa Bechtella
Summary: A low-cost catalyst was prepared by ion exchange and calcination, using natural Maghnia sodic bentonite as the precursor. This catalyst showed high catalytic activity in the removal of methyl orange dye by heterogeneous Fenton oxidation. The clay structure was preserved with increased iron content, and the specific surface area increased after the ion exchange treatment.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2023)
Article
Chemistry, Physical
Shiqi Tu, Ziqi Ning, Xiaoyue Duan, Xuesong Zhao, Limin Chang
Summary: Developing efficient and noble-metal-free catalysts is crucial for meeting the commercial demand of H2O2. In this study, a TiO2/rGO composite was synthesized and exhibited excellent catalytic activity for ORR and electro-Fenton processes.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Zhenyu Yang, Xuechang Ren, Suying Ding, Renhua Chen, Miao Tian
Summary: In this study, WS2 with different 1T phase content was prepared and its co-catalytic performance in the Fe3+/PMS system was investigated. It was found that WS2 had the best co-catalytic effect when the WCl6/TAA ratio was 1:12 and the temperature was 200 °C. The presence of the 1T phase in WS2 was confirmed by XRD, Raman, TEM, and XPS analysis. The WS2/Fe3+/PMS system efficiently degraded phenol solution and generated various active radicals. The 1T-WS2 also showed good reusability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)