Article
Chemistry, Inorganic & Nuclear
Vandana P. Viswanathan, K. S. Divya, Deepak P. Dubal, Nayarassery N. Adarsh, Suresh Mathew
Summary: The paper discusses the efficient integration of a plasmonic photocatalyst with an iron-based metal-organic framework to enhance visible light photoreactivity. The hybrid system shows excellent photocatalytic activity for the degradation of organic compounds under sunlight, attributed to the synergistic effects of surface plasmon resonance and electron transfer.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Jian Yang, Lei Li, Fan Fu, Hao Xu, Kang Da, Shaobo Cao, Wenting Chen, Lei Yang, Ximei Fan
Summary: Ag/AgCl/Bi2WO6 heterojunction photocatalysts were synthesized to effectively degrade volatile toluene under visible light. The optimal Ag/AgCl/Bi2WO6 showed a 99.9% removal rate of toluene after 60 minutes of visible light (>420 nm) illumination. The optical absorption properties and radical trapping experiments revealed the possible energy band structure of Ag/AgCl/Bi2WO6 heterojunction.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Kijay Bahadur Singh, Neelam Gautam, Deen Dayal Updhyay, Gajanan Pandey
Summary: In this paper, a synthesis method of Ag@AgCl immobilized graphene oxide (GO) nanocomposite using mustard pod extract (MPE) is reported. The synthesized Ag@AgCl-GO NCs showed impressive photocatalytic performance for the degradation of highly carcinogenic substances under visible light radiation.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Wenjun Zhang, Datong Xu, Fengjue Wang, Meng Chen
Summary: In this study, ternary composites containing AgCl and Au nanoparticles on g-C3N4 were prepared, showing excellent photocatalytic performance in degrading cationic dyes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jihai Duan, Xianxin Fang, Chaojie Li, Jianing Qu, Lexin Guo, Yuanqiang Zou, Mengqi Xiang, Weiwen Wang
Summary: Photocatalytic microreactors have advantages such as large specific surface area, rapid mass transfer, continuous flow operation capability, and low safety hazards, which promote their application in water purification. A monolithic microreactor has been proposed for depositing Ag/AgCl photocatalysts on the surface of the polydopamine-modified melamine sponge backbone. Experimental results showed that the monolithic microreactor can completely degrade methylene blue under visible light irradiation within 10 minutes and degrade 250 L m-2 of methylene blue per hour. The monolithic microreactor also demonstrated long-term reusability through a simple in situ chemical recovery method.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Environmental
Yinghua Li, Wenyue Yin, Mengxi Li, Jingwen Zhang, Lijun Chen
Summary: In this study, Ag/AgCl/Bi2O3/BiFeO3 composite photocatalysts were synthesized and characterized. The results showed that the composite photocatalyst exhibited good photocatalytic activity under certain conditions, and a possible catalytic mechanism was proposed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Juan Liu, Shuangxiu Shu, Yeping Li, Jiawei Liu, Jiao Yao, Shuai Liu, Menghao Zhu, Liying Huang, Lijing Huang
Summary: Ag/SnO2-x/Bi4O5I2 ternary composites were synthesized and showed high efficiency in degradation and antibacterial effects, making them promising for photocatalytic applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Gongduan Fan, Zhong Chen, Zhongsen Yan, Banghao Du, Heliang Pang, Dingsheng Tang, Jing Luo, Jiuyang Lin
Summary: The novel plasmonic Ag/AgCl@LaFeO3 (ALFO) photocatalyst showed enhanced photocatalytic activity in controlling harmful algal blooms (HABs) under visible light. ALFO-20% demonstrated higher light absorption capacity and lower electron-hole recombined rate compared to pure LaFeO3 and Ag/AgCl. Furthermore, ALFO-20% efficiently removed chlorophyll a from HABs, altered algae cell membrane permeability and morphology, disrupted photosynthesis and antioxidant systems, reducing secondary pollution and preventing HAB recurrence.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jianxin Zhai, Baowen Zhou, Haihong Wu, Shuaiqiang Jia, Mengen Chu, Shitao Han, Wei Xia, Mingyuan He, Buxing Han
Summary: The study successfully prepared an Ag/AgCl@SiO2 catalyst for methane oxidation, achieving high carbon monoxide production rate and selectivity. The SiO2 coating increased the lifetime of photogenerated charge carriers, enhancing the performance of the catalyst. Methane was effectively oxidized to carbon monoxide through the formation of singlet (1)O(2).
Article
Chemistry, Physical
Dashi Lei, Juanqin Xue, Xiangyu Peng, Shuhao Li, Qiang Bi, Changbin Tang, Liang Zhang, Jing Zhang
Summary: The rapid and effective treatment of As(III) wastewater was achieved by a Z-Scheme photocatalyst activated through PMS. Fe atoms and Ag nanoparticles played crucial roles in As(III) adsorption and PMS activation. The dual active sites on the photocatalyst effectively facilitated the fast oxidation of As(III).
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Waqar A. Abdulnabi, Saad H. Ammar, Huda D. Abdul Kader
Summary: In this study, graphitic carbon nitride (g-C3N4) grafted with phosphomolybdic acid (PMA) and AgCl were synthesized as photocatalysts. The composition, phase structure, morphology, and optical properties of the g-C3N4@PMA/AgCl hybrid were thoroughly investigated. Compared to g-C3N4, g-C3N4@PMA, and g-C3N4/AgCl samples, the g-C3N4@PMA/AgCl hybrid exhibited high activity (98.8%) for Congo red (CR) degradation under visible light and aerobic conditions. Two proposed mechanisms of the g-C3N4@PMA/AgCl heterojunction were demonstrated and supported by scavenger studies. In both mechanisms, the high redox PMA acted as efficient electron transporters between g-C3N4 and AgCl semiconductors, thereby enhancing the photocatalytic performance of the g-C3N4@PMA/AgCl hybrid.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Review
Environmental Sciences
Hanane Chakhtouna, Hanane Benzeid, Nadia Zari, Abou el Kacem Qaiss, Rachid Bouhfid
Summary: Doping silver nanoparticles into titanium dioxide semiconductor is an effective strategy to enhance its photocatalytic activity, prevent recombination of electron/hole pairs, and improve bactericidal performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Yinghua Li, Wenyue Yin, Ning Yang, Yuxin Li, Chaoqun Zhu, Lu Liu, Haibo Li, Xi Chen
Summary: A recyclable and composite photocatalyst based on Ag/AgCl/Bi2O3/BiFeO3 and modified zeolite/activated carbon was developed for the degradation of levofloxacin hydrochloride in wastewater. The optimal conditions for photodegradation were determined as follows: a mass ratio of modified zeolite to the photocatalyst 3:2, a dosage of 1-1.2 g/L, and an initial concentration of levofloxacin hydrochloride <18 mg/L. Under these conditions, 72.09% of levofloxacin hydrochloride could be degraded within 1.5 hours. The photocatalyst could be easily recovered and reused with a 74.7% recovery rate. Photoluminescence and electron paramagnetic resonance analysis indicated the production of O-2(-) and OH radicals as the main contributors to the degradation process. A possible catalytic mechanism for the photocatalyst was proposed.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Chemistry, Physical
Yuhao Liu, Xinlong Zheng, Yingjie Yang, Jing Li, Weifeng Liu, Yijun Shen, Xinlong Tian
Summary: This review article summarizes the development and application of TMS/TiO2 heterojunction photocatalysts, including their characteristics, properties, and advantages, and discusses the factors influencing photocatalytic hydrogen evolution process.
Article
Chemistry, Physical
Mohsen Padervand, Shahnaz Ghasemi, Sima Hajiahmadi, Baker Rhimi, Zahra Ghobadi Nejad, Saeed Karima, Zahra Shahsavari, Chuanyi Wang
Summary: Over the past few decades, biological hazards and organic pollution have become major environmental concerns. Photocatalysis has been found to be effective in minimizing their negative impacts. In this study, lozenge shape Ag/AgCl/ZnTiO3 photocatalysts were synthesized and demonstrated excellent catalytic performance in the degradation of nitrophenols and the conversion of CO2 to CO/CH(4). The presence of Ag/AgCl component in the ternary construction contributed to the enhanced catalytic effects. Additionally, this study successfully applied the prepared photocatalysts to treat hazardous biological waste containing cancer cells and showed promising results in inhibiting tumor growth.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Engineering, Chemical
Ying Cui, Wenqi Zhong, Zongyan Zhou, Aibing Yu, Xuejiao Liu, Jun Xiang
Summary: This study investigates the combustion process and heat transfer characteristics of the supercritical CO2 (S-CO2) power cycle in a circulating fluidized bed (CFB) using computational fluid dynamics (CFD) simulation and multiphase particle-in-cell (MP-PIC) method. A novel method using Radial Base Function (RBF) neural network for predicting simulation results is proposed to improve the prediction accuracy. The findings are significant for the design and optimization of S-CO2 CFB boilers.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Thermodynamics
Meng Zhu, Jing Zhou, Lei Chen, Sheng Su, Song Hu, Haoran Qing, Aishu Li, Yi Wang, Wenqi Zhong, Jun Xiang
Summary: This study utilized a global optimization model to analyze the optimal design of SCDC boilers, finding that boiler cost decreases and then increases with the increase of thermal power due to the influence of heat transfer and material. The proposal of double/multiple boiler design and positive matching principle can ensure the cost is in the optimal range.
Article
Chemistry, Physical
Luping Feng, Lixiang Zhang, Su Chu, Sheng Zhang, Xi Chen, Zhongling Du, Yushuang Gong, Hua Wang
Summary: Fe-doped MoS2 nanosheets were synthesized via one-pot hydrothermal route, resulting in peroxidase-like nanozymes with enhanced catalytic properties. The catalysis efficiency of Fe-MoS2 can be controlled by Mo-to-Fe molar ratios, with the highest achieved at 3/1, exhibiting over threefold improvement compared to pristine MoS2. The improved catalysis performances are attributed to the synergistic effects of doped Fe atoms and Mo-S sites, facilitating electron transfer and Fenton-like reactions. Fe-MoS2 nanozyme-based colorimetric methods have demonstrated practical application potential in glucose detection in blood samples. This study provides insights into the design of enhanced catalysis nanozymes doped with heteroatoms like Fe, with promising applications in biomedical analysis, food safety, and environmental monitoring.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Zengtong Deng, Syed Shatir A. Syed-Hassan, Yuanjing Chen, Long Jiang, Jun Xu, Song Hu, Sheng Su, Yi Wang, Jun Xiang
Summary: In this study, it was found that adding Ni/Al2O3 to bio-oil can inhibit the formation of coke during pyrolysis, especially at high temperatures. The catalytic cracking of small molecules enhances the formation of hydrogen radicals, promoting thermal decomposition and preventing coke formation.
Article
Energy & Fuels
Zhe Xiong, Zhou Fang, Long Jiang, Hengda Han, Limo He, Kai Xu, Jun Xu, Sheng Su, Song Hu, Yi Wang, Jun Xiang
Summary: This study investigated the effects of initial bio-oil production conditions on the steam reforming of bio-oil. The results showed that the biomass particle size had a significant impact on the tar yield, while the bio-oil production temperature and oligomer content also influenced the tar yield to some extent. In addition, the biomass particle size affected the gas yields from steam reforming, while the content of organics in bio-oil played a significant role in determining the gas yields.
Article
Green & Sustainable Science & Technology
Qiangqiang Ren, Song Hu, Qing Li, Jialin Zhang, Hengda Han, Sheng Su, Yi Wang, Long Jiang, Jun Xu, Jun Xiang
Summary: A ZnCl2-KOH heat treatment method was developed to efficiently treat waste tires and prepare high-yield sulfur-doped porous char. The best treatment effect was achieved when the additive mass ratios of ZnCl2/WT and KOH/WT were both 1, resulting in a capacitance of 25.7 F/g(WT) per gram of waste tire, significantly higher than other methods. The ratio of ZnCl2/WT had an influence on the structure of the activated char, with higher ratios leading to larger pores and more graphitic microcrystals. Furthermore, a ratio of 1 of ZnCl2/WT promoted the formation of both sulfide and sulphone bridges most effectively.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Yanwen Liu, Anchao Zhang, Qianqian Zhang, Yanyang Mei, Chenkai Wang, Yuxin Wang, Jun Xiang, Sheng Su, Xinmin Zhang, Zengqiang Tan
Summary: Ternary AgBr/BiOI/Bi2O2CO3 heterojunction materials were synthesized for photocatalytic removal of Hg-0 from simulated flue gas. The optimized 2%AgBr-BiOI/Bi2O2CO3 showed a removal efficiency of about 97%, which was significantly higher than pure AgBr, Bi2O2CO3, and BiOI.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Thermodynamics
Baihe Guo, Jingchao Zhang, Yanlin Wang, Xiaolei Qiao, Jun Xiang, Yan Jin
Summary: The use of fly ash to prepare aerogel support for CO2 adsorption was studied. The results showed that the aerogel support made from fly ash had good microscopic properties and achieved high adsorption capacity under certain conditions.
Review
Energy & Fuels
Xin Wang, Jun Xu, Peng Ling, Xiaoxue An, Hengda Han, Yifeng Chen, Long Jiang, Yi Wang, Sheng Su, Song Hu, Jun Xiang
Summary: This study investigated the characteristics of sewage sludge and coal slime combustion, finding that co-combustion had a positive effect on desulfurization. Proper blend ratios and temperatures could effectively suppress the emission of SO2. The evolution of S functional groups showed different patterns during co-combustion. Calcium played an important role in the process, reacting with SO2 to form intermediate solid products and retaining SO2 in the ash.
Article
Energy & Fuels
Abdulmajid Abdullahi Shagali, Song Hu, Hanjian Li, Huanying Chi, Haoran Qing, Jun Xu, Long Jiang, Yi Wang, Sheng Su, Jun Xiang
Summary: The heating rate has a significant impact on the pyrolysis process, especially for reactions involving the co-pyrolysis of biomass and plastic. The synergistic effects of the blend samples are concentrated in the main decomposition region, and the co-pyrolysis process requires less activation energy compared to the pyrolysis of plastic alone.
Article
Thermodynamics
Jing Zhou, Meng Zhu, Lei Chen, Qiangqiang Ren, Sheng Su, Song Hu, Yi Wang, Jun Xiang
Summary: This study aims to construct the performance analysis and system optimization methods of supercritical CO2 (S-CO2) coal-fired CHP plants with MEA-based post-combustion carbon capture and storage (CCS) that has adapted for various S-CO2 CHP cycles. Results show that exergy efficiency of S-CO2 DPR coal-fired CHP units at 0% and 100% heating loads (HL) are 43.22% and 46.21%, increasing by 9.81% and 1.01% compared with S-CO2 recompression CHP units, respectively.
Article
Chemistry, Physical
Kuan Du, Beichen Yu, Yimin Xiong, Long Jiang, Jun Xu, Yi Wang, Sheng Su, Song Hu, Jun Xiang
Summary: Bio-oil emulsions were stabilized using solid emulsifiers such as coconut shell coke, modified amphiphilic graphene oxide, and hydrophobic nano-fumed silica. The stability of the emulsions was influenced by the particles used. The emulsion stabilized by Ni/SiO2 showed potential for catalytic hydrodeoxygenation of bio-oil, inhibiting the polymerization reaction and promoting the conversion of phenolic compounds.
Article
Engineering, Chemical
Jialin Zhang, Song Hu, Yong Ding, Rui Huang, Qiangqiang Ren, Sheng Su, Yi Wang, Long Jiang, Jun Xu, Jun Xiang
Summary: In this study, a hydrothermal-carbonization method was utilized to process waste biomass, resulting in the production of high-value carbon aerogels. The banana peel-based carbon aerogel showed the best performance in ethanol cracking, achieving a hydrogen yield of 41.86%. The enhanced ethanol cracking was attributed to the abundant pores in the carbon aerogel, which extended the residence time, and the presence of inorganic components (such as Ca, Mg, and K) on the surface of the aerogel, which promoted bond-breaking and reorganization in ethanol.
Review
Engineering, Chemical
Chong Tao, Limo He, Xuechen Zhou, Hanjian Li, Qiangqiang Ren, Hengda Han, Song Hu, Sheng Su, Yi Wang, Jun Xiang
Summary: This review discusses the characteristics and removal methods of volatile organic compounds (VOCs) in cooking oil fumes. The emission characteristics are influenced by cooking temperatures, cooking oils, and cuisines. Various purification methods, such as physical capture, chemical decomposition, and combination methods, are compared based on VOC removal rate, operability, secondary pollution, application area, and cost. The catalytic combustion method, particularly with noble metal and non-noble metal catalysts, shows high efficiency, environmental friendliness, and low cost.
Article
Engineering, Environmental
Mengxia Qing, Linlin Zhang, Liang Liu, Yaxin Chen, Yunda Su, Sheng Su, Song Hu, Yi Wang, Jun Xiang
Summary: SiO2 doping improves the de-NOx activity of MnCe/Ti catalysts at high temperatures and enhances their sulfur resistance at wide temperatures.
CHEMICAL ENGINEERING JOURNAL
(2023)
Correction
Chemistry, Applied
Jia Liu, Juntong Dong, Xiaodan Li, Teng Xu, Zhenguo Li, Jeffrey Dankwa Ampah, Mubasher Ikram, Shihai Zhang, Chao Jin, Zhenlong Geng, Tianyun Sun, Haifeng Liu
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Seba Alareeqi, Daniel Bahamon, Kyriaki Polychronopoulou, Lourdes F. Vega
Summary: This study explores the potential application of single-atom-alloy (SAA) catalysts in bio-oils hydrodeoxygenation refining using density functional theory (DFT) and microkinetic modeling. It establishes the relationships between stability, adsorptive properties, and activity structures for bio-oil derivatives, providing guidance for the synthesis of cost-effective SAA combinations.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Bin Hu, Wen -Ming Zhang, Xue-Wen Guo, Ji Liu, Xiao Yang, Qiang Lu
Summary: This study explored the pyrolysis behaviors and mechanisms of different monosaccharides, including arabinose, galactose, galacturonic acid, and glucuronic acid. The roles of structural differences in these monosaccharides were analyzed, and it was found that glucuronic acid undergoes a special C-C bond breaking reaction during pyrolysis. The findings provide a deep understanding of the pyrolysis chemistry of hemicellulose and the role of different branches.
FUEL PROCESSING TECHNOLOGY
(2024)
Review
Chemistry, Applied
Youwei Zhi, Donghai Xu, Guanyu Jiang, Wanpeng Yang, Zhilin Chen, Peigao Duan, Jie Zhang
Summary: Hydrothermal carbonization (HTC) is an effective method for the harmless disposal of municipal sludge (MS) and offers potential applications for the obtained products. Optimizing reaction conditions, coupling with other waste materials, and combining different processes can improve the performance of HTC. Furthermore, HTC contributes to energy recovery and enhances the quality of life cycle assessment.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Jia Wang, Jianchun Jiang, Dongxian Li, Xianzhi Meng, Arthur J. Ragauskas
Summary: This study presents a scalable process for converting holocellulose and cellulosic wastes into advanced oxygen-containing biofuels with high furan, cyclic ketone, and ethanol content. By combining hydropyrolysis and vapor-phase hydrodeoxygenation using Pd/Al2O3 as a catalyst, the researchers achieved high yields and conversions. The integrated process holds great promise for biomass waste conversion into advanced biofuels.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Florian Held, Jannis Reusch, Steffen Salenbauch, Christian Hasse
Summary: The accurate prediction and assessment of soot emissions in internal combustion engines are crucial for the development of sustainable powertrains. This study presents a detailed quadrature-based method of moments (QMOM) soot model coupled with a state-of-the-art flow solver for the simulation of gasoline engines. The model accurately describes the entire cause-and-effect chain of soot formation, growth and oxidation. Experimental validation and engine cycle simulations are used to identify the root cause of observed soot formation hotspots.
FUEL PROCESSING TECHNOLOGY
(2024)
