Review
Chemistry, Multidisciplinary
Yonghui Shi, Zhanfeng Zhao, Dong Yang, Jiangdan Tan, Xin Xin, Yongqi Liu, Zhongyi Jiang
Summary: This article summarizes the recent advances and challenges in photocatalytic ammonia synthesis (PAS) from an engineering perspective. It discusses the materials engineering, structure engineering, and reaction engineering aspects of PAS, including the commonly used photocatalytic materials, design of photocatalysts, and key processes in the PAS reaction.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Physical
Yuanfang Shen, Jingxuan Shou, Liangchen Chen, Weihang Han, Luping Zhang, Yutong Chen, Xuewei Tu, Shangfu Zhang, Qiang Sun, Yurong Chang, Hui Zheng
Summary: This study developed a Fe-doped layered WO3 photocatalyst containing oxygen vacancies, which enhances the transport efficiency of photogenerated electrons and enables the direct nitrogen fixation from air under sunlight. The optimal nitrogen fixation conditions were determined through orthogonal experiments, and the reliability of nitrogen fixation was confirmed through in situ infrared detection and modeling of light absorption of the photocatalyst.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Physical
Liang Bao, Qinyu Bao, Huaiwei Zhang, Yongjun Yuan
Summary: A feasible tuning method for oxygen vacancies in TiO2 nanosheets was achieved by annealing under 3 atm H-2. The colored TiO2 sample showed excellent N-2 photo-fixation rate thanks to the abundant oxygen vacancies, demonstrating the high efficiency of annealing with high pressure H-2 in tuning surface OVs.
Article
Chemistry, Physical
Wangbing Sun, Mingxuan Sun, Xianglong Meng, Yongqiang Zheng, Ziyang Li, Xiangzhi Huang, Muhammad Humayun
Summary: A series of alkynyl carbon functionalized N-TiO2 was successfully prepared by ball milling. The alkynyl carbon materials were successfully doped into N-TiO2, and the catalytic performance of alkynylated N-TiO2 for various organic dyes and NH3 production was significantly enhanced under visible light. The introduction of alkynyl carbon into semiconductor materials is a promising strategy for improving their photocatalytic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Baofei Hao, Jinpeng Guo, Lan Zhang, Huizhong Ma
Summary: Photocatalytic processes are promising and ecofriendly approaches to degrade organic pollutants in water. In this study, TiO2/CuO nanofilms doped with Cr were fabricated and optimized, resulting in improved photocatalytic activity. The addition of Cr increased the surface area and surface oxygen vacancies of TiO2 crystals, leading to better degradation performance.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Zuming He, Hasan Fareed, Hanpei Yang, Yongmei Xia, Jiangbin Su, Lina Wang, Li Kang, Mi Wu, Zhengyi Huang
Summary: High-efficiency separation of photogenerated charges and molecular oxygen activation is crucial for the photocatalytic removal of organic pollutants. However, the understanding of the impact of metal substitution on charge separation and oxygen activation is limited. In this study, manganese-doped BiOBr hollow microspheres were synthesized and characterized to investigate the effect of Mn doping. It was found that Mn doping induced oxygen vacancies and served as active sites for catalytic reactions, leading to enhanced degradation of crystal violet. The study provides insights into the rational design of highly active photocatalysts and the mechanisms of charge separation and oxygen activation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yi Zhang, Jun Di, Xu Qian, Mengxia Ji, Ziqi Tian, Liqun Ye, Junze Zhao, Sheng Yin, Huaming Li, Jiexiang Xia
Summary: By constructing Bi2Sn2O7 quantum dots using a solvothermal method, the energy band structure and surface active sites were optimized, leading to efficient photocatalytic nitrogen fixation behavior.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Xiaoming Gao, Kaixuan Xu, Hongbing He, Shouda Liu, Xiangbo Zhao
Summary: Cu-delta-Bi2O3 nanosheets prepared by hydrothermal method exhibit excellent photocatalytic performance for nitrogen fixation and oxidation, attributed to the 2D ultrathin structure and formation of surface oxygen vacancies.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Bowen Chen, Yuanwen Hou, Hanke Li, Hejun Gao, Hongquan Fu, Fang Liao, Juan Zhang, Yunwen Liao
Summary: This study proposes an efficient α-Bi2O3/Bi3O4Br heterojunction with excellent nitrogen fixation activity. By introducing oxygen vacancies and heterojunction engineering, the adsorption and activation capacity of N2 are improved, and the separation efficiency of photogenerated electrons is promoted, providing a promising method for the rational design of photocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Jiao Huang, Lin Dou, Jianzhang Li, Junbo Zhong, Minjiao Li, Tao Wang
Summary: In this study, N-doped TiO2 with abundant and tunable oxygen vacancies was successfully synthesized, showing superior photocatalytic performance. The introduction of N into TiO2 resulted in higher efficiency of photogenerated electron/hole separation and demonstrated better performance in dye removal.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Libo Wang, Shiyu Wang, Mohan Li, Xue Yang, Fengyan Li, Lin Xu, Yongcun Zou
Summary: In this study, a core-shell structure of MIL-125@TiO2 was prepared by post solvothermal method for photocatalytic nitrogen fixation, showing enhanced ammonia formation rate under simulated sunlight. The design accelerates the activation of nitrogen and promotes the occurrence of photocatalytic reactions, providing a novel idea for the preparation of materials with controllable structure and multiple active sites for nitrogen fixation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Xiaolan Xue, Hongwei Chen, Yan Xiong, Renpeng Chen, Minghang Jiang, Gao Fu, Zhonghua Xi, Xiao Li Zhang, Jing Ma, Weihai Fang, Zhong Jin
Summary: This study presents the synthesis of V-O-S-rich anatase-phase black TiO2-xSy nanoplatelets, with narrowed bandgap and enhanced light absorption, for nitrogen fixation to produce ammonia. Theoretical calculations reveal the synergistic effect of oxygen vacancies and sulfur dopants on visible-NIR light absorption and photoexcited carrier transfer/separation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Zhaopeng Zhang, Xian Li, Dayong Guan, Yingchao Gao, Jiang Wu, Qizhen Liu, Ping He, Yongfeng Qi, Tong Li, Shuang Liang
Summary: Fe-doped TiO2 hollow microspheres exhibit enhanced photocatalytic performance for the removal of Hg-0 under UV light irradiation. The incorporation of iron reduces the energy band gap of TiO2 and extends the absorption boundary, leading to improved photocatalytic efficiency. However, an excessive amount of Fe3+ can hinder photocatalytic activity by occupying electron and hole capture sites.
Article
Chemistry, Inorganic & Nuclear
Haimei Liu, Cheng Qian, Tao Wang, Sheng Wang
Summary: Introducing oxygen vacancies (Vo) into TiO2 photocatalyst through N doping using dodecylamine as a structure-directing agent resulted in the successful synthesis of spherical anatase TiO2 nanostructures. These Vo-containing N-TiO2 spheres, decorated with 1 wt% Pt, showed excellent performance in hydrogen generation under UV-visible illumination. The enhanced photocatalytic activity is attributed to N-doping-induced oxygen vacancies (Vo) which inhibit the direct recombination of photogenerated carriers, and the presence of Pt co-catalysts that further suppress electron-hole pair recombination.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Renna Zhao, Guangbin Wang, Yuyin Mao, Xiaolei Bao, Zeyan Wang, Peng Wang, Yuanyuan Liu, Zhaoke Zheng, Ying Dai, Hefeng Cheng, Baibiao Huang
Summary: A study reported a strategy of lithium ion intercalation into TiO2 nanosheets to improve the activity and selectivity of conventional NRR electrocatalysts, experimental results showed that increased oxygen vacancies contribute to charge transfer and N2 adsorption/activation, promoting NRR kinetics.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)