Article
Chemistry, Physical
Qiong Liu, Di Zhai, Zhida Xiao, Chen Tang, Qiwei Sun, Chris R. Bowen, Hang Luo, Dou Zhang
Summary: By synthesizing core-shell structured BaTiO3@TiO2 nanowires heterojunctions, this study achieved superior piezo-photocatalytic degradation performance and revealed the coupling mechanisms through photoelectrochemical measurements and band diagram analysis. The enhanced carrier concentration and improved charge lifetime due to the construction of a heterojunction between TiO2 and BT led to outstanding degradation of highly concentrated dyes.
Article
Chemistry, Multidisciplinary
Omid Amiri, Haval Aziz Ahmed, Abdulla Ahmed Abdan, Peshawa H. Mahmood, Masoud Salavati-Niasari
Summary: The study demonstrated the significant effect of BaCO3 on piezocatalytic activity, showing a substantial improvement in the degradation efficiency of pollutants. By controlling ultrasonic parameters, it is possible to achieve highly efficient degradation of pollutants under mechanical energy force.
Article
Biochemistry & Molecular Biology
Jessica de Matos Fonseca, Nelson Yurako Londono Pabon, German Ayala Valencia, Leandro Guarezi Nandi, Marta Elisa Rosso Dotto, Regina de Fatima Peralta Muniz Moreira, Alcilene Rodrigues Monteiro
Summary: Various technologies have been proposed to preserve fruits and prevent postharvest losses, among which the degradation of ethylene produced by fruits using TiO2 photocatalysis has shown promising results in delaying fruit ripening. This paper introduced a new application of biopolymers-TiO2 nanocomposites to extend the shelf-life of fruits, showing potential in fruit postharvest application. The study evaluated the photocatalytic properties of nanocomposite films prepared with gelatin and hydroxypropylmethylcellulose matrices loaded with 1 wt% TiO2, with gelatin-TiO2 dispersion applied as a coating on expanded polyethylene foamnets demonstrating higher ethylene degradation efficiency per photocatalytic area.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Environmental Sciences
Liming Bai, Lumin Liu, Jinghui Pang, Zhao Chen, Minghui Wei, Yang Wu, Guohua Dong, Jianwei Zhang, Dan Shan, Baiqi Wang
Summary: In this study, N,P-CQDs were deposited on TiO2 nanowires to form N,P-CQDs/NW-TiO2, which exhibited excellent photocatalytic degradation for methyl blue due to its mesoporous structure and high separation rate of photoexcited carriers. Additionally, the fabricated nanosized photocatalyst showed outstanding recycled photocatalytic capability, maintaining 59.9% activity after four cycles, indicating its potential for widespread use in wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Ceramics
Daiane Fernandes, Cristiane W. Raubach, Pedro L. G. Jardim, Mario L. Moreira, Sergio S. Cava
Summary: A method of obtaining sodium niobate nanowires in a shorter time using microwave-assisted hydrothermal method followed by calcination was proposed. The obtained Perovskite showed improved crystallinity and band gap after heat treatment, resulting in enhanced photocatalytic performance with a high degradation rate of RhB reaching around 99.21%.
CERAMICS INTERNATIONAL
(2021)
Article
Green & Sustainable Science & Technology
Dong Xu, Hailing Ma
Summary: In this study, degradation of Rhodamine B in water by ultrasound-assisted TiO2 photocatalysis was investigated, and the optimal degradation conditions were determined by studying various factors. The results suggest that the ultrasound-assisted TiO2 photocatalysis method has great potential application value in the removal of organic pollution and environmental purification.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biochemistry & Molecular Biology
Massimo Zimbone, Maria Cantarella, Giuliana Impellizzeri, Sergio Battiato, Lucia Calcagno
Summary: This paper discusses the structural and photochemical properties of a monolithic photochemical diode. Through the optimization of TiO2 nanowires and Pt nanoparticles, an improved photo-activity and photocatalytic degradation rate were achieved.
Article
Chemistry, Physical
Xueqin Wang, Ying Liu, Helong Xu, Man Dai, Peng Qiao, Wenyi Wang, Yanxiu Liu, Hua Song
Summary: Surface-decorated three-dimensional dendritic fibrous nanosilica (DFNS)/TiO2 materials were synthesized and studied for their potential applications in degrading organic pollutants. The DFNS/TiO2 catalysts exhibited unique fibrous morphologies, high specific surface areas, and excellent catalytic properties, with a first-order degradation rate constant of 0.0229 min(-1).
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
SP. Keerthana, R. Yuvakkumar, G. Ravi, M. Thambidurai, Hung D. D. Nguyen, Dhayalan Velauthapillai
Summary: Hydrothermal synthesis was used to prepare pristine and Sr-doped TiO2 samples, and their physicochemical properties were studied. The addition of 3% Sr in TiO2 resulted in a narrow bandgap, increased oxygen vacancies, and transformed the morphology to a nanoball structure. The surface area of the Sr-doped TiO2 was also increased. The photocatalytic efficiency of the Sr-TiO2 was significantly improved compared to pure TiO2, making it a promising candidate for reducing toxic pollutants in water remediation.
Article
Chemistry, Inorganic & Nuclear
Shweta Manchwari, Jaya Khatter, R. P. Chauhan
Summary: This study focuses on the synthesis of TiO2/CdS nanocomposites with different concentrations of precursors and their characterization using various techniques. The results show that TiO2/CdS nanocomposites exhibit excellent photocatalytic performance in the visible range compared to pure TiO2, and they have better degradation efficiency for methylene blue dye compared to rhodamine B dye. The optimum photocatalytic performance is achieved with a 1:1 M ratio of cadmium and sulphur precursors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Jiaming Zhu, Zuohua Liu, Hao Wang, Yue Jian, Dingbiao Long, Shihua Pu
Summary: In this study, a novel (A-R)TiO2 catalyst and g-C3N4 modification were utilized to prepare a g-C3N4/(A-R)TiO2 composite catalyst with enhanced optical properties and photocarrier separation ability. The composite catalyst showed promising potential for efficient photocatalytic degradation of ammonia pollutants.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Guru Karthikeyan Thirunavukkarasu, Sridhar Gowrisankaran, Maria Caplovicova, Leonid Satrapinskyy, Maros Gregor, Aleksandra Lavrikova, Jan Gregus, Radoslav Halko, Gustav Plesch, Martin Motola, Olivier Monfort
Summary: In this study, nanotwin structured TiO2 nanotube layers were prepared by electrochemical anodization to form Ce-TNT and V-TNT through surface modification. The efficiency of V-TNT was found to be higher than Ce-TNT and TNT, attributed to its negative surface enhancing interactions with CAF.
DALTON TRANSACTIONS
(2022)
Article
Environmental Sciences
Jie Li, Yuxiang Yang, Zhiyong Han, Yan Huang, Hongming Yuan, Chaoying Ni
Summary: In this paper, Fe-Ce bimetallic-doped composites were synthesized using SiO2 aerogel as a carrier for the adsorption and degradation of trinitrogen from industrial or domestic wastewater. The photocatalytic efficiency was found to be the best when the catalyst dosage was 0.01 g, pH value was 11.0, and the concentration of H2O2 was 80 mmol/L, with the degradation efficiency of trinitrogen remaining above 70%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Josy A. Osajima, Alexandro S. Sa, Luzia M. C. Honorio, Pollyana Trigueiro, Lucas I. F. Pinto, Joziel A. Oliveira, Marcelo B. Furtini, Roosevelt D. S. Bezerra, Ana C. S. Alcantara, Edson C. Silva-Filho
Summary: This study investigated the synergistic effect of silver and gold bimetallic nanoparticles deposited on palygorskite in the presence of TiO2 for efficient photodegradation of bentazone herbicide. The best photodegradation system was found to be Au@Ag-Pal+TiO2, which showed continued effectiveness after the third cycle. The photodegradation process of bentazone exhibited toxicity against Artemia salina.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Yuqing Ren, Yao Chen, Qinyu Li, Hexing Li, Zhenfeng Bian
Summary: This study investigates the promotion effect of microwave-absorbing photocatalysts on the photocatalytic oxidation process. The results show that the thermal effect of the microwave field enhances the separation efficiency of photogenerated electrons and holes, while the athermal effect improves the light absorption rate of the catalyst and promotes the generation of reactive oxygen radicals. These findings provide a theoretical foundation for practical applications.
Article
Chemistry, Multidisciplinary
Liping Liu, Haibing Meng, Yongqiang Chai, Xianjie Chen, Jingyi Xu, Xiaolong Liu, Weixu Liu, Dirk M. Guldi, Yongfa Zhu
Summary: In this study, a novel MOF photocatalyst is constructed by encapsulating C-60 into a nano-sized zirconium-based MOF, NU-901, resulting in a substantial electrostatic potential difference and a robust built-in electric field. The photocatalytic hydrogen evolution rate for C-60@NU-901 reaches 22.3 mmol g(-1) h(-1), which is among the highest values for MOFs. Harnessing host-guest interactions to enhance charge separation is a promising strategy for designing efficient photocatalysts for solar-to-chemical energy conversion.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Yanfang Liu, Zhiqiang Wang, Wenhui Zhao, Jili Hou, Longpeng Cui, Liang Zou, Chenghao Li, Hongwei Li, Yu Wu, Run Xu, Yongfa Zhu
Summary: The preparation of hierarchical porous nanosilica using coal gasification fly ash as a silicon source was achieved by microwave-assisted alkaline extraction followed by hydrothermal synthesis. This method showed fast and efficient silicon extraction with less impurity metal ions. The use of specific compounds as swelling agents induced intergranular pores, which significantly improved the CO2 adsorption capacity of the nanosilica. The isosteric heat of adsorption indicated the presence of both physisorption and chemisorption in the adsorption process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yan Li, Yingxin Guo, Chengsi Pan, Guangli Wang, Hui Zhao, Yuming Dong, Yongfa Zhu
Summary: The development of new strategies to improve reaction efficiency and light utilization is a major challenge in photosynthetic chemistry. This study focuses on the design of an amorphous FeOOH coating to control the adsorption and desorption of reactants and products in order to improve the efficiency of photocatalytic conversion reactions, specifically the conversion of benzyl alcohol to benzaldehyde.
Article
Chemistry, Physical
Xue Chen, Zhouping Wang, Xuancheng Shen, Yan Zhang, Yang Lou, Chengsi Pan, Yongfa Zhu, Jing Xu
Summary: A plasmonic Z-scheme Ag@AgCl/PDI photocatalyst was synthesized using a deposition-photoreduction method. This photocatalyst exhibited improved light absorption ability and enhanced oxidation capacity, leading to remarkable visible-light photocatalytic performance for the elimination of organic pollutants and antibiotic resistant bacteria and genes. The degradation rates of the photocatalyst were significantly higher compared to SA-PDI, and it displayed efficient killing and inactivation of antibiotic resistant bacteria and genes.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Environmental Sciences
Tongbin Lu, Hui Zhao, Liang Jian, Rong Ji, Chengsi Pan, Guangli Wang, Yuming Dong, Yongfa Zhu
Summary: A new photocatalysis-self-Fenton process was developed for the removal of persistent 4-chlorophenol pollutant. H2O2 was generated in situ via photocatalysis, and the photogenerated electrons and holes assisted in the regeneration of Fe2+ and mineralization of 4-CP, respectively. The CPBA-CN photocatalysis-self-Fenton process exhibited significantly higher degradation and mineralization efficiencies compared to traditional photocatalysis and Fenton. This study provides new insights for improving the Fenton process and further advancing wastewater purification.
ENVIRONMENTAL RESEARCH
(2023)
Editorial Material
Environmental Sciences
Yongfa Zhu, Chuncheng Chen, Changbin Zhang, Fan Dong, Haibao Huang, Jinzhu Ma
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Environmental
Mengyang Jing, Hui Zhao, Liang Jian, Chengsi Pan, Yuming Dong, Yongfa Zhu
Summary: A novel photocatalysis-self-Fenton system based on coral-like B-doped g-C3N4 photocatalyst was developed, which enabled in situ generation of H2O2 and accelerated the cycling of Fe2+/Fe3+. This system exhibited excellent degradation efficiency and stability, and could be applied in a broad range of pHs.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Kunfeng Zhang, Hongxia Chen, Wenbo Pei, Hongxing Dai, Junshan Li, Yongfa Zhu
Summary: A series of 3D ordered macroporous (3DOM) Bi4O5Br2 photocatalysts with different macropore sizes were fabricated using a PMMA template method. The photocatalytic activity of 3DOM Bi4O5Br2 first increased and then decreased with the rise in macropore size. Specifically, 3DOM Bi4O5Br2-255 exhibited the highest photocatalytic activity among various catalysts tested, showing significantly higher efficiency in phenol degradation compared to bulk Bi4O5Br2, Bi2WO6, and g-C3N4. The improved performance of 3DOM Bi4O5Br2-255 can be attributed to its enhanced phenol adsorption, O2 activation, and charge separation and transfer abilities.
Article
Chemistry, Physical
Rong Ji, Yuming Dong, Hui Zhao, Chengsi Pan, Guangli Wang, Yongfa Zhu, Junshan Li
Summary: In this study, a novel cobalt-iron oxide/perylene diimide organic supermolecule (CoFeO/PDIsm) Z-scheme heterojunction was developed for a photocatalysis-self-Fenton system. The system showed high in-situ H2O2 production rate and remarkable organic carbon removal ability, surpassing current photocatalysts. The key to its success lies in the great charge separation in the Z-scheme heterojunction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zhaohui Wu, Wenlu Li, Jingyi Xu, Jianfang Jing, Junshan Li, Jie Shen, Lu Yang, Wenhui Feng, Shiying Zhang, Yongfa Zhu
Summary: In this study, highly crystalline BiOI nanosheets with I-rich surface were used to enhance the intensity of the internal electric field (IEF) and direct charge migration. The I-rich BiOI demonstrated a 62.5-fold improvement in IEF intensity compared to I-poor BiOI due to its well-developed crystalline structure, and its IEF direction was reversed by the surface I-rich layers. This intensified IEF induced efficient charge separation and enhanced photocatalytic activity. The manipulation of IEF through surface and bulk structure regulation of BiOI offers a promising approach to improve photocatalytic performance.
Article
Chemistry, Physical
Fulong Liu, Zhenbao Zhang, Lei Shi, Yu Zhang, Xiaoyu Qiu, Yuming Dong, Heqing Jiang, Yongfa Zhu, Jiawei Zhu
Summary: This study reports an effective strategy to enhance the nitrate electroreduction (NO3ER) activity by tuning the A-site deficiencies of cobalt-based perovskite oxides. The NO3ER activity of (Ba0.5Sr0.5)(1-x)Co0.8Fe0.2O3-d (x = 0, 0.05, 0.10, 0.15, and 0.20) catalysts shows a volcano-type dependence on the x values, with the maximum point at x = 0.15. Among them, (BS)(0.85)CF exhibits the highest activity (143.3 mg h(-1) mg(cat)(-1) or 0.86 mmol h(-1) cm(-2)) and selectivity (97.9%) for ammonia, with excellent stability (200 h), surpassing most reported NO3ER catalysts. The optimized NO3ER properties are attributed to the modulation of physicochemical properties by A-site deficiencies, such as the creation of a moderate amount of oxygen vacancies and the introduction of a moderate distance between the band center and Fermi level. This work provides a new avenue for designing advanced cobalt-based perovskite oxides for NO3ER catalysis.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Ming Gong, Hui Zhao, Chengsi Pan, Yuming Dong, Yingxin Guo, Haixia Li, Jiawei Zhang, Guangli Wang, Yongfa Zhu
Summary: Interface Pt-O bonded Pt-Ov-BiOBr catalysts were designed for photocatalytic selective oxidation of 5-hydroxymethylfurfural (HMF). The Pt-O bond on the unsaturated coordination environment of Ov-BiOBr serves as an electron transport channel to efficiently generate O-2(-). Photogenerated h(+) gathers at the Pt-Ov-BiOBr interface to oxidize HMF to carbon-centered radicals. The spatial proximity of O-2(-) and carbon-centered radicals at the Pt-Ov-BiOBr interface promotes reciprocal collisions and reactions, enhancing the efficiency of HMF photocatalytic selective oxidation.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Ying Zhang, Chenchen Zhang, Dan Wang, Jianing Gui, Junjun Mao, Yang Lou, Chengsi Pan, Yongfa Zhu
Summary: In this study, a novel organic/inorganic copper hybrid catalyst was reported for electrochemical CO2 reduction reaction (CO2RR) in acidic media. The catalyst, formed through the coordination of histidine-functionalized perylene diimide (HPH) with copper ions, exhibited pH-universal CO2RR activity. In situ ATR-SEIRAS and XPS spectra confirmed that the catalyst promoted the activation of CO2 molecules and enhanced the adsorption strength of *COOH and *CO intermediates, particularly in acidic media.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Environmental
Hao Hu, Yingjie Hu, Weiguo Kong, Yinglong Tao, Qichao Jiang, Jian Wang, Changlai Li, Haoran Xie, Yuexin Shi, Yubao Li, Guangyuan Chen, Jie Liang, Shijian Zhou, Yan Kong, Yongfa Zhu
Summary: Efficient photocatalytic degradation and mineralization of phenolic pollutants under mild conditions is crucial for addressing the environmental crisis. In this study, a novel self-generation and -activation of H2O2 technology is achieved on GCN/TD-COF heterojunction photocatalysts, which utilize photogenerated electrons and holes to participate in oxygen reduction reaction and phenolic pollutants removal. The optimized CNTD-0.02 sample exhibits remarkable performance with high phenol removal and mineralization rates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Yingxin Guo, Bing Liu, Jiawei Zhang, Guangli Wang, Chengsi Pan, Hui Zhao, Chuntao Wang, Feiyang Yu, Yuming Dong, Yongfa Zhu
Summary: This study develops a novel photocatalytic system by using functionalized perylene imide supramolecular as an oxygen reduction co-catalyst. The system greatly accelerates the generation of superoxide radical, leading to a significant improvement in the conversion efficiency of biomass. Compared with previous techniques, the photocatalytic performance of this system is superior and has the potential for high added-value compounds production.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
