Article
Environmental Sciences
Yujie Zhao, Yan Li, Lidong Sun
Summary: Photoinduced reduction and oxidation play important roles in photocatalytic water splitting and organic degradation, attracting increasing interest in recent years. Focus is placed on enhanced light absorption, efficient charge separation, and interfacial reaction through bandgap and interfacial engineering. Key strategies for hydrogen evolution and degradation of emerging pollutants are discussed in this review.
Article
Materials Science, Multidisciplinary
B. Akhsassi, Y. Naciri, A. Bouddouch, B. Bakiz, A. Taoufyq, S. Villain, C. Favotto, J. -C. Valmalette, J. -R. Gavarri, A. Benlhachemi
Summary: BiPO4 photocatalyst was synthesized and heat-treated to enhance its photo-catalytic activities. The annealing process led to the formation of different polymorphs of BiPO4, resulting in improved photocatalytic performance. BiP-500 showed the highest performance due to the formation of LTMP and HTMP as well as larger particle size. The efficient photocatalyst was also effective in degrading various organic pollutants and exhibited increased activities in basic media. The photodegradation mechanism was found to involve radical superoxide species.
Article
Chemistry, Physical
Ping Li, Zhihua Zhuang, Ziwei Zhang, Jinhan Guo, Zhongying Fang, Wei Chen
Summary: A novel Pd-W18O49 nanowire photocatalyst was developed for high efficiency and stability in degrading methylene blue and neutral red under sunlight irradiation. The introduction of Pd reduced the band gap energy of W18O49 nanowires, facilitating electron transition and improving electron-hole separation, while also reducing electron-hole recombination. The Pd-W18O49 nanowires demonstrated enhanced photodegradation capacity compared to W18O49 nanowires, with significant decomposition of dyes observed within 40 minutes under sunlight.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jiajia Liu, Bo Li, Lingxin Kong, Qi Xiao, Shan Huang
Summary: BiVO4 nanostructures with different morphologies were synthesized via hydrothermal method with the assistances of PVP, CTAB, and SDBS. The structures and photocatalytic activities of these materials were characterized systematically, and BiVO4-SDBS showed the highest photocatalytic performance for the degradation of RhB. The enhanced separation efficiency of electron-hole pairs and the efficient visible light absorption contributed to the excellent performance of BiVO4-SDBS.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Environmental Sciences
Suo Wang, Huanshun Yin, Penghui Li, Jia Ding, Lingsong Wang, Yunlei Zhou, Jun Wang
Summary: Flowerlike Bi/BiOCl photocatalyst was prepared using a one-pot hydrothermal method, which exhibited high photocatalytic activity for the degradation of RhB under visible light irradiation. The improved activity was attributed to the in-situ formation of Bi metal, enhancing the visible light activity of BiOCl and inhibiting the recombination of photogenerated electron-hole pairs. The prepared Bi/BiOCl also showed high cyclic stability and low Bi element leakage.
Article
Physics, Condensed Matter
Lalitha Kamarasu, Ezhaveni Sathiyamoorthi, Satya Sree Nannapaneni, Saravanavadivu Arunachalam, Muthuraj Arunpandian, Jintae Lee, PadmaPriya Arumugam, Naresh Kumar Katari
Summary: Hydrothermal synthesis was used to prepare CuMoO4 photocatalyst for the visible light-driven degradation of methylene blue. The synthesized nanoparticles were characterized and their structures, functional groups, morphologies, bandgap energy, and oxidation state were analyzed. The photocatalytic degradation of methylene blue using the CuMoO4 photocatalyst showed high efficiency under visible light, with a maximum degradation performance of 94.70% achieved in 50 minutes. The effects of various variables on the photocatalytic process were thoroughly studied, including adsorbent dosage, catalyst and scavenger concentrations, recycling effectiveness, and methylene blue concentration.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Engineering, Environmental
Yan-Ran Lv, Zhi-Lin Wang, Yuan-Xin Yang, Ying Luo, Si-Yuan Yang, Yue-Hua Xu
Summary: In this study, a novel SnS2/Bi2WO6 heterostructure was successfully designed and synthesized, showing excellent photocatalytic performance under visible light for applications in carbon dioxide reduction, water splitting, and pollutant degradation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ningkai Ding, Bin Chen, Liang Zhou, Lingzhi Wang, Yongdi Liu, Jinlong Zhang, Juying Lei
Summary: In this study, Z-scheme V2O5-loaded fluorinated inverse opal carbon nitride was successfully synthesized using a ternary collaborative modification approach. The catalyst exhibited the highest photocatalytic activity and rate constant for the degradation of organic pollutants and was also effective in removing antibiotics. The improved performance of the catalyst was attributed to its increased specific surface area, narrowed bandgap, and enhanced visible light utilization capacity. Mechanism studies confirmed the formation of a Z-scheme heterojunction, which promoted the migration of photo-generated charge carriers and provided sufficient free radicals for the degradation process. The combination of different modifications synergistically enhanced the removal efficiency for different organic pollutants.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Chemical
E. Horvath, J. Gabathuler, G. Bourdiec, E. Vidal-Revel, M. Benthem Muniz, M. Gaal, D. Grandjean, F. Breider, L. Rossi, A. Sienkiewicz, L. Forro
Summary: Water contamination is a serious problem in certain areas of the world due to environmental conditions and poor waste management. This study demonstrates the effectiveness of photocatalytic filters based on titanium dioxide nanowires (TiO(2)NWs) in decontaminating water, especially in electricity-poor regions. The filters can intercept various microbial pathogens and remove a broad range of organic compounds and infective microbes under sunlight exposure.
Article
Engineering, Environmental
Zhaogang Ren, Haiyang Zhang, Yunwen Wang, Lu Lu, Dong Ren, Junjian Wang
Summary: Returning rice straw releases a significant amount of dissolved organic matter (DOM) into aquatic croplands, impacting the photochemical behaviors of organic pollutants. The study found that the photosensitization of DOM towards DIU and E2 correlated with the production of PPRIs, while its influence on SMX photodegradation was opposite.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Chemical
Wenjuan Fan, Hui Chang, Wenju Pang, Yufeng Li, Chuanhai Xiao, Yan Jiang, Zhiqiang Jiang, Guangfu Yin
Summary: Designing photocatalysts with excellent morphology from MOF is a promising strategy to improve photocatalytic H2 evolution. In this study, a 3D honeycomb-like Zn0.5Cd0.5S-140 assembled by ultra-thin nanosheets was constructed using a novel MOF template. The Zn0.5Cd0.5S-140 photocatalyst exhibited the highest hydrogen evolution rate and apparent quantum efficiency among the ZnxCd1-xS-140 photocatalysts derived from MOF.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Aitao Chen, Jun Xiao, Xiao Kong, Long Chen, Chao Li, Yajun Wei, Qingyang Du, Wuzhu Sun, Jingtao Zhang
Summary: This study reports the preparation of a catalyst consisting of Cu(I) atoms anchored on N3c vacancies-engineered g-C3N4, which exhibits enhanced Fenton-like performance. The surface-enrichment of Cu(I) atoms maximizes the exposure of active sites and reduces the mass transfer limitation for hydroxyl radicals. The N3c vacancies facilitate electron donation, resulting in an increased number of single Cu(I) sites. These strategies synergistically enhance hydroxyl radical production and endow the catalyst with excellent performance in degrading various contaminants and superior bactericidal properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jinge Du, Zhe Xu, Hui Li, Haijun Yang, Shengjun Xu, Jun Wang, Yanan Jia, Shuanglong Ma, Sihui Zhan
Summary: A novel Z-scheme Ag3PO4/g-C3N4 heterostructure was successfully constructed for efficient photocatalytic inactivation of Escherichia coli and degradation of organic pollutants. The improved photocatalytic efficiency can be attributed to the formation of a Z-scheme heterostructure, rapid separation of photo-induced carriers, enhanced electronic transport capacity, and prolonged carrier lifetime. The Ag3PO4/g-C3N4 heterostructure exhibited significantly boosted visible-light-driven photocatalytic performance for various pollutants degradation.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Xiaosi Wang, Guojuan Chen, Hengjia Wang, Yu Wu, Xiaoqian Wei, Jing Wen, Liuyong Hu, Wenling Gu, Chengzhou Zhu
Summary: Perylene diimide (PDI) was introduced into the framework of g-C3N4 to build a polymer with a donor-acceptor structure, optimizing the energy band structure and increasing visible light responsiveness. This modification also led to an increased exposure of reactive sites, resulting in superior performance in the photodegradation of organic pollutants in wastewater treatment.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Zhen Shen, Yipeng Zhou, Yue Guo, Jie Zhao, Jianhua Song, Yu Xie, Yun Ling, Wei Zhang
Summary: By regulating the concentrations of surface and bulk oxygen vacancies (Vo-s and Vo-b) in CeO2, the photocatalytic performance for organic dye degradation can be significantly enhanced.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Physical
Haojie Li, Bingke Yang, Zhen Yao, Xuetao Wang, Kaiming Shen, Mengjie Liu
Summary: This study systematically investigates the influence of metal and nonmetal element doping on the photochemical properties of g-C3N4 for efficient catalytic AB hydrogen production. It provides a design method for high performance bifunctional catalysts of photocatalysis and metal catalysis. The results show that both non-metals (B, P) and metals (Ru, Ni) have efficient regulatory effects on the band structure of g-C3N4, resulting in a reduced band gap and improved hydrogen production. The study offers a theoretical method for the coupling of metal catalysis/photocatalysis ammonia borane to produce hydrogen.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Shrouq Mujahed, Davide Gandolfo, Luigi Vaccaro, Evgueni Kirillov, Dmitri Gelman
Summary: In this study, a high-valent Ru(IV) bifunctional catalyst was successfully applied for the hydrosilylation of various functional groups. The high-valent hydride complexes showed high chemoselectivity and affinity towards reducing polar bonds. The scope, limitations, and plausible mechanism of the reaction were described.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Yongzhen Peng, Kongchen Xia, Qi Wu
Summary: In this study, we report an engineered cyclohexanone monooxygenase that can be used for the asymmetric synthesis of chiral alpha-deuterated carbonyl compounds via enantioselective reductive dehalogenation. The engineered enzyme exhibits good chemoselectivity, stereoselectivity, and d-incorporation, making it a promising method for the synthesis of deuterated drugs.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Qi Yang, Ruixuan Xu, Hongqi Nie, Qilong Yan, Jun Liu, Jiuyu Chen, Yunlan Sun
Summary: The adsorption and decomposition processes of ammonium perchlorate (AP) on pure-Al and Al2O3/Al surfaces were investigated using density functional theory. The results showed that the pure-Al surface is more conducive to the decomposition of AP and the activation of NH3, while the Al2O3/Al surface promotes the disengagement of H and NH3 decomposition.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Yudong Hu, Guochao Xu, Ye Ni
Summary: This study identified a novel phenylalanine dehydrogenase (QtPDH) with high catalytic efficiency and thermal stability, making it a promising biocatalyst for industrial production of bulky aromatic primary amines. QtPDH exhibited a broader substrate specificity and significantly longer half-life compared to BbPDH.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Weiling Zhao, Zhiling Huang, Hui Shen, Xianglong Li, Shaofen Zhao, Bo Xie, Shengjie Xia
Summary: This study investigated the effects of metal doping and crystal plane selection on the CO2 adsorption properties of MgO using density functional theory (DFT) methods. The results showed that the appropriate crystal plane and metal doping can improve the adsorption properties of MgO on CO2. The influence of different crystal planes and metal dopants on CO2 adsorption properties varied significantly. The research provides some references for experimental studies on CO2 adsorption by MgO by combining the dual modification of crystal plane and doped metal.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Jie Zhang, Jinwei Chen, Zongbo Shi, Junyu Zhao, Runsheng Zhuo, Ruilin Wang
Summary: In this study, a double-layered silicalite-1 support with high specific surface area was synthesized, and a magnesium modification strategy was adopted to improve the catalytic activity and stability of the zinc-based catalyst. The modified catalyst showed enhanced propylene selectivity and anti-coking property.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Pei-Sen Gao, Chang-Wang Pan, Cheng Liu, Wen -Tong Chen
Summary: Asymmetric electrocatalysis offers a unique approach to obtain enantioenriched molecules that are difficult to obtain through conventional methods. This study developed a novel bifunctional electrocatalyst, enabling the oxidative kinetic resolution of chiral 1,4-diols and gamma-lactones. The work demonstrates the potential of bifunctional electrocatalysis for asymmetric synthetic methods and its importance in the development of novel electrocatalytic methods.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Qinzhe Lin, Xuanjin Lv, Xianming Zeng, Mengning Zhong, Qiyun Wu, Huilin Ren, Shenpeng Xu, Wentian Chen, Wenting Du, Jun Li
Summary: The catalytic efficiency of engineered IRED M5 was found to be relatively low when tasked with a bulky amine substrate. Rational design led to the mutants M203V and F260A, with F260A exhibiting a substantial improvement in conversion and stereoselectivity. The study revealed the potential molecular mechanisms underlying the effect of F260A and M203V on catalytic performance.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Zhishuai Wang, Fengyun Su, Hailong Cao, Mengzhen Tian, Xiang Li, Haiquan Xie, Xiaoli Jin, Zhengdao Li, Xin Ying Kong
Summary: In this study, the efficiency of photocatalytic CO2 reduction was significantly enhanced by incorporating nickel oxide onto niobium pentoxide. The resulting catalyst showed remarkable methane and carbon monoxide production improvements.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
A. Yu. Sidorenko, Yu. M. Kurban, T. V. Khalimonyuk, I. V. Il'ina, N. S. Li-Zhulanov, O. S. Patrusheva, V. V. Goltsova, M. P. Bei, Zh. V. Ihnatovich, J. Warna, K. P. Volcho, N. F. Salakhutdinov, D. Yu. Murzin, V. E. Agabekov
Summary: This study provides a comprehensive investigation into the catalytic condensation of renewable 3-carene with formaldehyde for the one-step preparation of terpenoid trans-4-hydroxymethyl-2-carene. Various acids and alumino-silicates were found to catalyze the reaction, but the selectivity to the desired product was limited. Phosphoric acid showed the highest selectivity, and an excess of formaldehyde or catalyst loading significantly increased the yield of the target product. Water presence also led to increased selectivity. Additionally, a detailed mechanism for the 3-carene condensation with formaldehyde was proposed and confirmed through kinetic modeling.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Meng-Yu Rong, Jing Nie, Shen Li, Jun-An Ma
Summary: We synthesized a new class of chiral quaternary ammonium salts and used them as catalysts in phase-transfer catalytic asymmetric alkylation. By employing these catalysts, we obtained a series of chiral fluorinated aromatic alpha-amino acid derivatives with high yields and enantioselectivities.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Zhaozhou Wei, Guangtao Wei, Huixian Che, Deyuan Xiong, Linye Zhang, Ruihua Xue, Yalin Tang, Xuanli Lu
Summary: This study demonstrates that small-sized graphite crystallite and highly defective carbon-based catalysts can increase the -SO3H density of the catalysts and modulate their surface electronic properties, leading to improved efficiency in the alpha-pinene hydration reaction. The reduction of graphite crystallite size is considered a critical step in enhancing the selectivity of alpha-terpineol.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Kempanna S. Kanakikodi, Nagendra Kulal, K. S. Subramanya, M. S. Puneethkumar, Bhavana B. Kulkarni, Ganapati Shanbhag, Sanjeev P. Maradur
Summary: An effective and highly selective protocol for synthesizing asymmetric organic carbonates using dimethyl carbonate (DMC) as a reactant and solvent has been developed. The performance of CeO2 nanostructures with different morphologies in the carbonate interchange reaction (CIR) of alcohols was investigated, and the CeO2 nano-catalyst with rod morphology exhibited the highest oxygen vacancy and remarkable enhancement in conversion. The CeO2 characterization data revealed that the exposed active sites, defect density, coordination state of surface atoms, and reducibility of the catalytic materials are the contributing factors to its high catalytic activity. CeO2 can be easily recovered and reused for multiple cycles.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Yanzhao Gao, Xianglei Meng, Shiqi Huang, Hui Wu, Liantao Jiang, Yu Zhou, Yuting Song, Yanyan Diao
Summary: Gamma alumina modified with alkaline earth metal shows improved catalytic performance for hydrogenation reactions. Pd catalysts supported by Al2O3 and Mg-modified Al2O3 were synthesized and their structure, composition, and surface acidity were investigated. The results showed that Pd/MgO-Al2O3-2 catalyst exhibited the best catalytic performance due to its metallic state palladium and weak acid sites.
MOLECULAR CATALYSIS
(2024)