Article
Environmental Sciences
Mani Durai, Deepak Chauhan, Mathivanan Durai, Mathavan Saravanan, Sakthivel Kumaravel, Elangovan Erusappan, Young-Ho Ahn
Summary: Novel KTO/BiOCl nanostructured photocatalysts with various weight proportions were synthesized using a hydrothermal process. The as-prepared catalysts were characterized and exhibited improved photoresponsivity due to the heterojunction between KTO and BiOCl and the narrowed bandgap. The KTO/BiOCl nanostructure showed superior photocatalytic performance compared to bare BiOCl and titanate.
Article
Chemistry, Physical
Mengnan Nie, Chao Zhou, Weiwei Feng, Changhui Xin, Xin Yu, Qian Li
Summary: Self-doped Ti3+-TiO2 and amorphous ZnS layers-coated Ti3+-TiO2 nanostructures were successfully synthesized for organic pollutant degradation under visible-light illumination. The Ti3+-TiO2 clusters exhibited efficient visible-light absorption and photocatalytic performance, while the amorphous ZnS layers greatly enhanced the charge separation between ZnS layers and self-doped Ti3+-TiO2 clusters. The Ti3+-TiO2@ZnS-15% heterojunction showed the highest photocatalytic activity, approximately 9.87 times that of commercial TiO2, and also exhibited enhanced performance in degrading ciprofloxacin and tetracycline under visible-light illumination.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Jie Cui, Shasha Tao, Xiaoli Yang, Xiaojing Yu, Shaodong Sun, Qing Yang, Wei Wei, Shuhua Liang
Summary: Doping Ni into BiOCl can significantly improve its photocatalytic performance by modifying the electronic structure. The introduction of Ni narrows the band-gap, forms defect energy levels, results in a red shift in the absorption edge, and enhances absorption in the visible-light range.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Engineering, Chemical
Qiang Sun, Xuebin Hu, Qiang He, Manli Sun, Liangliang Dai, Sarfaraz Khan, Huaili Zheng
Summary: This study achieved the spatiotemporal coagulation and degradation of diclofenac sodium under visible light irradiation by modifying TiO2 nanoparticles. The modified TiO2 nanoparticles showed activated photocatalytic activity and improved photocatalytic efficiency. Additionally, it was found that the coagulant could be directly reused multiple times.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Environmental
Jaemin Choi, Hak-Hyeon Kim, Ki-Myeong Lee, Na Chen, Min Sik Kim, Jiwon Seo, Donghyun Lee, Haein Cho, Hyoung-il Kim, Jaesang Lee, Hongshin Lee, Changha Lee
Summary: The generation of hydroxyl radicals by visible light-illuminated tungsten oxide is significantly improved in the presence of hydrogen peroxide and bicarbonate ion. The ternary system shows synergistic enhancement in benzoic acid oxidation, with less consumption of hydrogen peroxide compared to the binary system.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Sitan Li, Bo Feng, Xiaoxin Zhang, Jing Tian, Dan Wang, Yan Pei, Minghua Qiao, Yefei Li, Baoning Zong
Summary: A K, S, and O co-doped PCN (akut-CN) was successfully synthesized through one-pot polymerization of urea and thiourea in the presence of KCl and NaOH, which exhibited an unprecedentedly high H2O2 production rate of 4.46 mM h-1 under visible light irradiation, about 210 times that of undoped PCN. The heteroatom doping and the incorporation of cyano and hydroxyl groups into akut-CN were found to enhance light absorption, facilitate the separation and transfer of photogenerated charges, and improve the surface electronegativity and the O2 adsorption capacity and strength, thereby boosting the reaction kinetics. This work highlights the great potential of elaborately decorated PCN in photocatalytic O2 reduction to H2O2 and paves the way for decentralized production and application of H2O2.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Electrical & Electronic
E. S. Mansor, R. A. Geioushy, O. A. Fouad
Summary: PANI/BiOCl nanosheets were successfully prepared by precipitating PANI on the surface of BiOCl, showing enhanced light absorption in the visible region and higher photocatalytic activity for RB-220 dye degradation. This work provides a potential-effective degradation method for anionic dye under visible light.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Tingfang Xie, Shaodong Sun, Jianzhi Xu, Yongguang Luo, Jie Cui
Summary: Simultaneous doping of Co and S species into hierarchical BiOCl architectures (BOC-Co-S) improves the photocatalytic degradation performance under visible light.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Hong Thi Bich Phan, Anh Quoc Khuong Nguyen, Yong-Yoon Ahn, Kitae Kim, Saewung Kim, Jungwon Kim
Summary: A cost-effective method for the degradation of propranolol was developed, which does not require high energy or expensive materials/chemicals. The study found that visible-light irradiation significantly accelerated the degradation of propranolol mediated by peroxymonosulfate (PMS), and the generation of free radicals was responsible for the enhanced degradation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Organic
Yufei Li, Xin Liang, Kaikai Niu, Jun Gu, Fang Liu, Qing Xia, Qingmin Wang, Weihua Zhang
Summary: An attractive, versatile, and operationally simple visible-light-induced trifluoromethylation method has been demonstrated, which is transition-metal-free, photocatalyst-free, and oxidant-free. Inexpensive and readily available triflic anhydride (Tf2O) was chosen as the radical trifluoromethyl source, and thianthrene was used as a recyclable Tf2O-activating reagent, achieving a high-yielding and scalable trifluoromethylation reaction. Density functional theory and mechanistic studies revealed that the reaction involves a free radical homolytic process excited by visible light, generating a key trifluoromethyl radical intermediate.
Article
Engineering, Environmental
Prerna Attri, Preeti Garg, Moondeep Chauhan, Rajender Singh, Ramesh K. Sharma, Sandeep Kumar, Dong-Kwon Lim, Ganga Ram Chaudhary
Summary: Here, we presented the fabrication of well-crystalline metal-doped BiOCl nanoscale photocatalytic materials through solvothermal synthetic route. Ni doping significantly improved the photocatalytic and antibacterial behavior of BiOCl. The morphological study showed that different metal dopings led to the formation of nanosheet (Ni, Cd), nanoflower (Mo), and nanodisc (Co) morphologies, while Ni doping resulted in large size nanosheets with increased surface area and improved porous structure. The inclusion of Ni into BiOCl nanostructure shifted the band gap and reduced electron-hole recombination, contributing to its excellent photocatalytic performance. Additionally, Ni-BiOCl exhibited excellent photocatalytic antibacterial activity against S. aureus bacteria under visible light.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Heng Guo, Yangzhou Deng, Haoyong Yin, Juanjuan Liu, Shihui Zou
Summary: In this study, BiOCl nanoflake/FeOCl nanospindle heterostructures were successfully synthesized through a solution chemistry method. Characterization techniques were used to analyze the synthesized materials. The results showed that optimizing the BiOCl/FeOCl interface by regulating the Bi-to-Fe ratios can significantly enhance the photocatalytic performance.
Article
Chemistry, Multidisciplinary
Dario Filippini, Mattia Silvi
Summary: The study presents a visible-light-mediated and transition metal-free olefination process using a defined alkene geometry to cross-couple complex molecular scaffolds containing carboxylic acids and aldehydes. By merging the Wittig reaction and photoredox catalysis, it enables rapid structural diversification of bioactive molecules and natural products with high functional group tolerance and the formation of a new alkene functional group with programmable E-Z stereochemistry.
Article
Chemistry, Inorganic & Nuclear
Yao Xu, Zhuozhe Li, Fang Fang, E. Yifeng, Guizhi Zhao
Summary: A new type of light stabilized nanocatalyst BiOCl/g-C3N4 was synthesized with superior morphology features and excellent photochemical catalytic performance, especially under visible light irradiation. The interaction between BiOCl and g-C3N4 was proven to enhance the separation of photo-generated holes and electrons, significantly improving the material's photostability and photocatalytic performance, as demonstrated through various experiments.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Chunping Su, Mengxi Cheng, Fan Tian, Fengxi Chen, Rong Chen
Summary: In this work, gold/bismuth oxychloride nanocomposites with different morphologies were prepared and showed efficient visible-light-driven photocatalytic disinfection. The flower-like Au/BiOCl nanocomposite exhibited the highest photocatalytic bactericidal performance. The enhanced photocatalytic effect was attributed to the surface plasmon resonance effect of Au and the hierarchical structure of BiOCl.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Applied
Yunxiao Tong, Ying Zang, Senda Su, Yinggui Zhang, Junzhuo Fang, Yongqing Yang, Xiaoman Li, Xiang Wu, Fuming Chen, Jianhua Hou, Min Luo
Summary: This study adopts a strategy of designing hybrid cathodes for efficient aqueous zinc-ion batteries. Methylene blue (MB) intercalated vanadium oxide (HVO-MB) is synthesized through sol-gel and ion exchange methods, and it exhibits high specific capacity, high rate capability, and extraordinary stability in 3 M Zn(CF3SO3)2 aqueous electrolyte. The electrochemical kinetics reveal that HVO-MB has large pseudocapacitance charge storage behavior due to fast ion migration provided by coordination reactions and expanded interlayer distance.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Tianqing Yan, Shiyi Chen, Wendi Sun, Yuezheng Liu, Lun Pan, Chengxiang Shi, Xiangwen Zhang, Zhen-Feng Huang, Ji-Jun Zou
Summary: In this study, a practical strategy to construct an acid OER catalyst with low iridium content was reported. The catalyst showed significantly improved catalytic performance and is suitable for practical application in PEM electrolyzers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Changliang Du, Youqi Zhu, Xinyu Yang, Zhao Lv, Jiachen Tian, Xiao Pei, Xin Liu, Xilan Ma, Jianhua Hou, Chuanbao Cao
Summary: By in-situ anion substitution with heavy element tellurium, lattice expansion is achieved to improve the lithium ion storage performance of Cu7.2S4 nanotube cathode, delivering high discharge capacity of 354.1 mAh g(-1) at 0.1 A g(-1) and remarkable rate capability of 85.1 mAh g(-1) at large current loading of 2.0 A g(-1). The reinforced Te-substitution generates lattice expansion and effectively adjusts the Mg2+ storage reaction, leading to significant improvement in Mg2+ storage performances of Te-substituted Cu7.2S4 nanotube, which holds great potential in electrode material modification for improving battery chemistry.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Asif Hussain, Samayya Maqsood, Renlong Ji, Qikai Zhang, M. Umer Farooq, M. Boota, M. Umer, M. Hashim, Hamza Naeem, Zaigham Saeed Toor, Asghar Ali, Jianhua Hou, Yuxiong Xue, Xiaozhi Wang
Summary: Metal-doped graphitic carbon nitride was synthesized as a superior photocatalyst for pollutant degradation. Among the different metal dopants, zinc-doped g-C3N4 exhibited the highest photocatalytic performance, achieving a degradation rate of 90% for Methyl Blue dye. The study mainly focuses on the photo-degradation of the dye and the photocatalytic mechanism.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Engineering, Chemical
Wei Wang, Baian Pu, Chi Ma, Chengxiang Shi, Lun Pan, Xiangwen Zhang, Ji-Jun Zou
Summary: In this study, cyclopropanation of polycyclic olefins using heterogeneous Pd/C catalyst was reported. The optimal conditions were explored and a series of polycyclic olefins were successfully cyclopropanated with high yield. The catalyst exhibited good recyclability and stability, and the synthesized cyclopropane derivatives showed good fuel characteristics. This work demonstrates the industrial potential of cyclopropanation of polycyclic olefins with diazomethane.
Article
Chemistry, Physical
Muhammad Asim, Shuguang Zhang, Bushra Maryam, Jie Xiao, Chengxiang Shi, Lun Pan, Ji-Jun Zou
Summary: A Pt@Ni2P catalyst is reported to enhance the hydrogen evolution rate from ammonia borane under both dark and visible light conditions. X-ray photoelectron spectrum analysis shows that the incorporation of Pt with Ni2P forms partially positive Pt delta+ and partially negative Ni2P delta- as active sites for ammonia borane and water, respectively. Visible light irradiation further accelerates the electron transfer from Pt delta+ to Ni2P delta-. Pt loading over Ni2P plays a vital role in improving the H2 evolution rate via ammonia borane hydrolysis.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Xin Liu, Youqi Zhu, Changliang Du, Jiachen Tian, Lifen Yang, Xiuyun Yao, Zhitao Wang, Xilan Ma, Jianhua Hou, Chuanbao Cao
Summary: A cation-doping strategy is reported to regulate the electrochemical Mg2+ storage behaviors of Co-doped CuS nanosheet cathodes. With cationic Co-doping, the optimized cathodes exhibit fast electrochemical diffusion kinetics, optimized reversible redox reaction, and enhanced long-term cyclic life. The improved performance can be attributed to the cation-doping effect that efficiently accelerates Mg2+ diffusion kinetics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Muhammad Asim, Alibek Kurbanov, Bushra Maryam, Muhammad Ajmal, Chenxiang Shi, Lun Pan, Ji-Jun Zou
Summary: Incorporating g-C3N4 with transition metal phosphides has the potential to create a low-cost and robust co-catalyst for hydrogen evolution. The ammonia borane hydrolysis method efficiently releases H2 in the presence of a catalyst under ambient conditions. A Ni2P/C3N4 catalyst is synthesized using a hydrothermal method and low-temperature phosphidation, and optimization reveals that the catalyst with 6.5% Ni content performs the best for H2 release. Furthermore, loading 2% Pt nanoparticles over Ni2P/C3N4 improves activity 5.7-fold and enhances charge transfer.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Chunlin Zheng, Mingqiang Ning, Zhe Zou, Ganggang Lv, Qiang Wu, Jianhua Hou, Qikui Man, Run-Wei Li
Summary: The exploration of electromagnetic wave absorbers with anticorrosion for military targets in harsh environments is a challenging task. In this study, core@shell structure Prussian blue analog-derived NiCo@C, CoFe@C, NiFe@C, and NiCoFe@C were obtained with excellent EM wave absorption performance. Among them, NiCoFe@C achieved a minimum reflection loss of -47.6 dB and an effective absorption bandwidth of 5.83 GHz, covering the whole Ku-band. Additionally, these absorbers showed lower corrosion current density and larger polarization resistance under different corrosion conditions, and the salt spray test had little effect on their absorption performance and surface morphologies.
Article
Chemistry, Multidisciplinary
Chen Qiao, Zahid Usman, Jie Wei, Lin Gan, Jianhua Hou, Yingying Hao, Youqi Zhu, Jiatao Zhang, Chuanbao Cao
Summary: A catalyst kinetics optimization strategy is proposed based on tuning active site intermediates adsorption. The construction of M-OOH on the catalytic site before the rate-determining step is crucial in this strategy, as it optimizes the overall catalytic kinetics by preventing competition from other intermediates. Through significantly reducing the kinetic energy barrier, M-OOH is formed on the active site at low overpotential, resulting in improved kinetics.
Article
Engineering, Chemical
Muhammad Asim, Bushra Maryam, Xianhua Liu, Lun Pan, Chengxiang Shi, Ji-Jun Zou
Summary: In this work, Pt@Ni2P/NF catalyst is synthesized by embedding platinum (Pt) nanoparticles over self-supported Ni2P/NF. Pt@Ni2P/NF exhibits a high synergetic effect between Pt nanoparticles and Ni2P/NF, enhancing the hydrolysis of ammonia borane. The activation energy and turnover frequency of Pt@Ni2P/NF are calculated to be 31.0 kJ mol(-1) and 63.2 min(-1) for 0.13 M AB.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Multidisciplinary Sciences
Shiyi Chen, Shishi Zhang, Lei Guo, Lun Pan, Chengxiang Shi, Xiangwen Zhang, Zhen-Feng Huang, Guidong Yang, Ji-Jun Zou
Summary: Surface reconstruction plays a crucial role in generating real active species for electrochemical reactions. In this study, the authors use high-valence Mo to modulate the orthorhombic Pr3Ir1-xMoxO7 and achieve directional and accelerated surface reconstruction, leading to the formation of highly active Ir-O-bri-Mo species for acidic water oxidation.
NATURE COMMUNICATIONS
(2023)
Article
Energy & Fuels
Qing Liu, Tinghao Jia, Lun Pan, Zhouyang Shen, Zehao Han, Xiangwen Zhang, Ji-Jun Zou
Summary: This study investigated the pyrolysis performance of high-energy-density fuels with different cyclic structures and revealed the relationship between molecular structure and reactivity. The results showed that the pyrolysis conversion of the fuels is closely related to their carbon and hydrogen atom numbers, and the decomposition reaction pathways were proposed. Additionally, the heat sink of the fuels was correlated with the product of their carbon and hydrogen atom numbers. This study provides guidance for the design and development of high-energy-density fuels for high-performance aerospace vehicles with long flight distance and hypersonic speed.
Article
Engineering, Chemical
Yakun Liu, Shennan Yang, Chengxiang Shi, Lun Pan, Xiangwen Zhang, Jin-Jun Zou
Summary: A highly active solid acid catalyst for the cyclopropanation of dicyclopentadiene has been prepared by impregnation method. The catalyst shows good catalytic activity and recyclability, providing a green and efficient synthesis for high-energy-density fuel, pesticide and medicine.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Energy & Fuels
Zehao Han, Lun Pan, Kang Xue, Jisheng Xu, Qing Liu, Ying Xu, Zhouyang Shen, Xiangwen Zhang, Ji-Jun Zou
Summary: This study investigates the effects of molecular structure on the dehydrogenation performance of polycyclic alkanes and finds that cyclohexane shows the best performance. Furthermore, the correlation between the density, volumetric net heat of combustion, and heat sink with the molecular structure of cyclic alkanes is analyzed.