Article
Chemistry, Inorganic & Nuclear
Fengkun Bai, Hanning Li, Xu Jing, Chunying Duan
Summary: In this research, CdS nanoparticle-doped metal-organic frameworks (CdS@DUT-52) with different contents were synthesized using a solvothermal method. UV-vis spectroscopy and photoelectrochemical testing proved that CdS@DUT-52 possesses strong light absorption ability and effective electron-hole separation properties. CdS@DUT-52 was used to trigger the photooxidation of amines, sulfides, and alcohols in the presence of air or oxygen, resulting in considerable yields of corresponding imines, sulfoxides, and aldehydes compared to a single component.
DALTON TRANSACTIONS
(2023)
Article
Environmental Sciences
S. Sugashini, T. Gomathi, R. Aruna Devi, P. N. Sudha, K. Rambabu, Fawzi Banat
Summary: The study successfully synthesized a biocomposite-based nano-photocatalyst using sol-gel technique, which showed excellent photocatalytic performance in degrading crystal violet dye, achieving 95% degradation under visible light irradiation.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Muhammad Abdul Basit, Faizan Raza, Gohar Ali, Amna Parveen, Mahmood Khan, Tae Joo Park
Summary: This study demonstrates the generation of visible light photocatalytic and photothermal activity in carbon fibers network by depositing TiO2-CdS nanocomposite. The combination of CdS QDs-sensitized TiO2 nanocomposites and CFs shows potential for simultaneous photocatalytic and photothermal water purification, which can be further optimized and extended.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Inorganic & Nuclear
Jie Zhou, Beibei Zhu, Lu Wang, Yan Bao, Guofeng Guan
Summary: A novel Z-scheme CdS/CeO2/g-C3N4 nanocomposite was synthesized by a solvothermal method and its photocatalytic activity for the degradation of phenol was evaluated. The nanocomposite exhibited remarkable photocatalytic activity with a degradation rate of 95 % in 180 min, surpassing that of pure CeO2 and CdS/CeO2. The enhanced photocatalytic ability is mainly attributed to the higher adsorption capacity of three-dimensional porous g-C3N4 and the three-dimensional space electric field formed by its complex with CdS and CeO2.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Marziye Modares, Somayeh Alijani, Bahram Nasernejad
Summary: ZnO-CdS composites with different loadings of CdS were synthesized for NOx degradation under visible light. The presence of CdS influenced the morphology and structure of the composites, leading to the formation of needle/flower-like structures. The composites with CdS showed increased surface area and enhanced visible light absorption. Compared to pristine ZnO, the photocatalytic activity of ZnO-CdS composites was higher, with the optimal CdS loading being 15%. The formation of heterojunction structure between CdS and ZnO was responsible for the high photocatalytic performance of the composites.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Biochemistry & Molecular Biology
Mikhail Lyulyukin, Nikita Kovalevskiy, Andrey Bukhtiyarov, Denis Kozlov, Dmitry Selishchev
Summary: Composite materials based on nanocrystalline anatase TiO2 doped with nitrogen and bismuth tungstate were synthesized using a hydrothermal method. The samples showed different photocatalytic activity in the oxidation of volatile organic compounds under visible light due to the physicochemical characteristics. The Fe/Bi2WO6/TiO2-N composite improved the selectivity of oxidation compared to pristine TiO2-N in the degradation of ethanol vapor, but had an adverse effect in the degradation of benzene vapor.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Environmental
Soheila Gholamian, Majid Hamzehloo, Abdolhadi Farrokhnia
Summary: In this study, novel TiO2/Fe3O4/BiOI nanocomposites were successfully used for the decontamination of different dyes, showing excellent photocatalytic activity and stability. The increased photocatalytic activity was attributed to the higher specific surface area and the formation of n-p heterojunctions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Xiaorong Wen, Jiaping Feng, Juan Zhang, Hongquan Fu, Hejun Gao, Jinhua Wang, Yunwen Liao
Summary: The rapid development of industrialization and urbanization has led to widespread environmental pollution, especially water pollution. This study found that by embedding O-CNTs into bud-like shaped CdS, the photocatalytic degradation performance can be significantly improved, with potential applications.
Article
Chemistry, Physical
Zhang Caisong, Zhang Jiali, Ou Keru, Liu Yongxin, Guo Zanru, Chen Xi, Cheng Guangzeng, Hu Fengping
Summary: A visible-light-driven ZIF-8-coated CdS popcorn-like photocatalyst was successfully synthesized by controlling the preferential construction of ligands, showing high efficiency and stability. The photocatalytic efficiency of the ZIF-8-coated CdS popcorn-like photocatalysts remained high after five cycles, with relative humidity playing a crucial role in the degradation process.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Environmental
An-Chun Chu, Rama Shanker Sahu, Tzu-Ho Chou, Yang-hsin Shih
Summary: The environmentally friendly Fe3O4@TiO2 heterojunction photocatalysts demonstrated excellent degradation efficiency of BPA under visible and long wavelength UV light irradiation. The superior photocatalytic activity was attributed to the moderate iron loading, which effectively reduced hole-pair separation and shifted the band-gap in the visible range. Additionally, the magnetic properties of Fe3O4 played a crucial role in recollecting the used catalyst, promoting the practical applications of Fe3O4@TiO2 photocatalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
R. Ranjith, Natchimuthu Karmegam, Murad Alsawalha, Xuefeng Hu, K. Jothimani
Summary: The ternary CdS/BiVO4/g-C3N4 (CBG) hybrid semiconductor photocatalyst was synthesized via a hydrothermal technique and characterized using various techniques. The CBG hybrid semiconductor exhibited excellent photocatalytic activity for the degradation of Methylene Blue (MB) aqueous dye under visible light, with a degradation rate of about 94.5% after 120 minutes. The enhanced photocatalytic activity can be attributed to the construction of heterojunctions among g-C3N4, CdS, and BiVO4, which improves charge transfer efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Lalitha Gnanasekaran, Rekha Pachaiappan, P. Senthil Kumar, Tuan K. A. Hoang, Saravanan Rajendran, D. Durgalakshmi, Matias Soto-Moscoso, Lorena Cornejo-Ponce, F. Gracia
Summary: This study focuses on improving the treatment of industrial waste and harmful bacteria by tuning the band gap of the TiO2 catalyst, and discusses the mechanism and results of photocatalytic and antibacterial activities in detail.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Physical
Zahra Salmanzadeh-Jamadi, Aziz Habibi-Yangjeh, Cailing Xu, Chundong Wang
Summary: Novel brown TiO2-x/Bi4O5I2/carbon dots (B-TiO2-x/Bi4O5I2/CDs) photocatalysts were successfully prepared for the degradation of antibiotics. The optimized nanocomposite showed impressive activity in the photodegradation of cephalexin, metronidazole, and tetracycline, with significantly higher efficiency compared to TiO2 and B-TiO2-x. The nanocomposite also displayed considerable stability after multiple cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
A. Jafarabadi, M. Sobhani, H. Koohestani
Summary: In this study, TiO2/Fe2TiO5 ceramic was synthesized by reacting iron (III) hydroxide with dispersed suspension of TiO2 particles. Suspensions at different pH values were prepared, and subsequent calcination resulted in the formation of Fe2TiO5 on the surface of TiO2 particles. XRD analysis confirmed the presence of pseudobrookite Fe2TiO5, while TEM images showed the coexistence of Fe2TiO5 and TiO2 with rutile structure. UV-Vis diffuse reflectance spectra revealed two direct band gap energies associated with the Fe2TiO5 coating and TiO2 support.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Xinling Wang, Chaohao Hu, Huiting An, Di Zhu, Yan Zhong, Dianhui Wang, Chengying Tang, Lixian Sun, Huaiying Zhou
Summary: The study demonstrates that the formation of the SBO/P25 binary heterojunction catalyst on the TiO2 surface accelerates the photocatalytic activity sites, enhancing hydrogen production and pollutant degradation efficiency. Experimental results indicate that the SBO/P25 catalyst has higher hydrogen evolution and MB degradation efficiency compared to pure P25, with excellent stability and recyclability.
APPLIED SURFACE SCIENCE
(2021)
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)