{"title":"Highly dispersed Pd nanoparticles in situ reduced and stabilized by nitrogen-alkali lignin-doped phenolic nanospheres and their application in vanillin hydrodeoxygenation","authors":"Xue Gu, Yu Qin, Jiahui Wei, Bing Yuan, Fengli Yu, Liantao Xin, Congxia Xie, Shitao Yu","doi":"10.1007/s11705-024-2478-1","DOIUrl":"10.1007/s11705-024-2478-1","url":null,"abstract":"<div><p>Herein, we introduced a nitrogen-alkali lignin-doped phenolic resin (N@AL<sub><i>n</i></sub>PR) to produce palladium nanoparticles through an <i>in situ</i> reduction of palladium in an aqueous phase, without the need for additional reagents or a reducing atmosphere. The phenolic resin nanospheres and the resulting palladium nanoparticles were extensively characterized. Alkali lignin created a highly conducive environment for nitrogen incorporation, dispersion, reduction, and stabilization of palladium, leading to a distinct catalytic performance of palladium nanoparticles in vanillin hydrodeoxygenation. Under specific conditions of 1 mmol of vanillin, 40 mg of catalyst, 1 MPa H<sub>2</sub>, 90 °C, and 3 h, the optimized Pd/N@AL<sub>30</sub>PR catalyst exhibited a nearly complete conversion of vanillin, 98.9% selectivity toward <i>p</i>-creosol, and good stability for multiple reuses. Consequently, an environmentally friendly lignin-based catalyst was developed and used for the efficient hydrodeoxygenation conversion of lignin-based platform compounds.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141772933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic effect of Fe-Mn bimetallic sites with close proximity for enhanced CO2 hydrogenation performance","authors":"Haoting Liang, Qiao Zhao, Shengkun Liu, Chongyang Wei, Yidan Wang, Yue Wang, Shouying Huang, Xinbin Ma","doi":"10.1007/s11705-024-2491-4","DOIUrl":"10.1007/s11705-024-2491-4","url":null,"abstract":"<div><p>The Fe-Mn bimetallic catalyst is a potential candidate for the conversion of CO<sub>2</sub> into value-added chemicals. The interaction between the two metals plays a significant role in determining the catalytic performance, however which remains controversial. In this study, we aim to investigate the impact of tuning the proximity of Fe-Mn bimetallic catalysts with similar nanoparticle size. And its effect on the physicochemical properties of the catalysts and corresponding performance were investigated. It was found that closer Fe-Mn proximity resulted in enhanced CO<sub>2</sub> hydrogenation activity and inhibited CH<sub>4</sub> formation. The physiochemical properties of prepared catalysts were characterized using X-ray diffraction, H<sub>2</sub> temperature programmed reduction, and X-ray photoelectron spectroscopy, revealing that a closer Fe-Mn distance promoted electron transfer from Mn to Fe, thereby facilitating Fe carburization. The adsorption behavior of CO<sub>2</sub> and the identification of reaction intermediates were analyzed using CO<sub>2</sub>-temperature programed desorption and <i>in situ</i> Fourier transform infrared spectroscopy, confirming the intimate Fe-Mn sites contributed to CO<sub>2</sub> adsorption and the formation of HCOO* species, ultimately leading to increased CO<sub>2</sub> conversion and hydrocarbon production. The discovery of a synergistic effect at the intimate Fe-Mn sites in this study provides valuable insights into the relationship between active sites and promoters.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141772934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Amine-functionalized metal-organic frameworks loaded with Ag nanoparticles for cycloaddition of CO2 to epoxides","authors":"Huiyu Fu, Jiewen Wu, Changhai Liang, Xiao Chen","doi":"10.1007/s11705-024-2477-2","DOIUrl":"10.1007/s11705-024-2477-2","url":null,"abstract":"<div><p>With the advantages of low raw material cost and 100% atom utilization, the synthesis of high value-added chemical product cyclic carbonates by the cycloaddition of CO<sub>2</sub> to epoxides has become one of the most prospective approaches to achieve the industrial utilization of CO<sub>2</sub>. In the reported catalytic systems, the complexity of the catalyst synthesis process, high cost, separation difficulties, and low CO<sub>2</sub> capture limit the catalytic efficiency and its large-scale application. In this paper, Ag nanoparticles loaded on polyethyleneimine (PEI)-modified UiO-66-NH<sub>2</sub> (Ag/PEI@UiO-66-NH<sub>2</sub>) are successfully synthesized by <i>in situ</i> immersion reduction. The Ag nanoparticles and the amino groups on the surfaces of PEI@UiO-66-NH<sub>2</sub> contribute to the adsorption of CO<sub>2</sub> and polarization of C–O bonds in epoxides, thereby boosting the conversion capability for the CO<sub>2</sub> cycloaddition reaction. At the amount of propylene oxide of 0.25 mol and the catalyst dosage of 1% of the substrate, the yield and selectivity of propylene carbonate are up to 99%. In addition, the stability and recyclability of Ag/PEI@UiO-66-NH<sub>2</sub> catalyst are attained. The Ag/PEI@UiO-66-NH<sub>2</sub> catalyst also demonstrates a wide range of activity and distinctive selectivity toward cyclo-carbonates in the cycloaddition of CO<sub>2</sub> to epoxides. This work provides a guide to designing a highly efficient catalyst for <i>in situ</i> capture and high-value utilization of CO<sub>2</sub> in industrial applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Extractive distillation of cycloalkane monomers from the direct coal liquefaction fraction","authors":"Shuo-Shuo Zhang, Xing-Bao Wang, Wen-Ying Li","doi":"10.1007/s11705-024-2482-5","DOIUrl":"10.1007/s11705-024-2482-5","url":null,"abstract":"<div><p>Separating monomeric cycloalkanes from naphtha obtained from direct coal liquefaction not only facilitates the valuable utilization of naphtha but also holds potential for addressing China’s domestic chemical feedstock market demand for these compounds. In extractive distillation processes of naphtha, relative volatility serves as a crucial parameter for extractant selection. However, determining relative volatility through conventional vapor-liquid equilibrium experiments for extractant selection proves challenging due to the complexity of naphtha’s compound composition. To address this challenge, a prediction model for the relative volatility of <i>n</i>-heptane/methylcyclohexane in various extractants has been developed using machine-learning quantitative structure-property relationship methods. The model enables rapid and cost-effective extractant selection. The statistical analysis of the model revealed favorable performance indicators, including a coefficient of determination of 0.88, cross-validation coefficient of 0.94, and root mean square error of 0.02. Factors such as <i>α, E</i><sub>HOMO</sub>, <i>ρ</i>, and log<i>P</i><sub>oct/water</sub> collectively influence relative volatility. Analysis of standardized coefficients in the multivariate linear regression equation identified density as the primary factor affecting the relative volatility of <i>n</i>-heptane/methylcyclohexane in the different extractants. Extractants with higher densities, devoid of branched chains, exhibited increased relative volatility compared to their counterparts with branched chains. Subsequently, the process of separating cycloalkane monomers from direct coal liquefaction products via extractive distillation was optimized using Aspen Plus software, achieving purities exceeding 0.99 and yields exceeding 0.90 for cyclohexane and methylcyclohexane monomers. Economic, energy consumption, and environmental assessments were conducted. Salicylic acid emerged as the most suitable extractant for purifying cycloalkanes in direct coal liquefaction naphtha due to its superior separation effectiveness, cost efficiency, and environmental benefits. The tower parameters of the simulated separation unit provide valuable insights for the design of actual industrial equipment.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141643799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yiwen Dai, Bin Guan, Xingxiang Wang, Jinli Zhang, Bin Dai, Jiangbing Li, Jichang Liu
{"title":"Effect of binder addition on combustion characteristics of cotton straw pellets and kinetic analysis","authors":"Yiwen Dai, Bin Guan, Xingxiang Wang, Jinli Zhang, Bin Dai, Jiangbing Li, Jichang Liu","doi":"10.1007/s11705-024-2470-9","DOIUrl":"10.1007/s11705-024-2470-9","url":null,"abstract":"<div><p>In this study, the combustion characteristics and kinetics of cotton straw (CS) particles mixed with polyethylene (PE) film and coal gangue (CG) were investigated. The co-combustion characteristics of CS mixed with PE and CG at different heating rates were revealed by the thermogravimetric method and differential thermogravimetric method. The ignition temperature, burnout temperature, and maximum weight loss rate were measured, and the comprehensive combustion and flammability indexes were calculated. The results showed that the composite combustion characteristic index and flammability index increased with the increase in heating rate. The addition of PE and CG additives could effectively extend the combustion time. The Coats-Redfern (C-R) reaction model and N-order reaction model were used to evaluate the kinetic parameters of the blends. The results showed that 12.5% PE + 12.5% CG particles had the lowest activation energy (<i>E</i>a = 103.73 kJ·mol<sup>−1</sup>) at the volatile combustion stage. The dynamics conform to the third-order dynamics model. In addition, the applicability of C-R model, Flynn-Wall-Ozawa (FWO) model, and Starink model in the calculation of activation energy was explored, and it was found that the FWO model is not suitable for the calculation of activation energy of biomass pellet combustion kinetics. This study provides a new method for the development and utilization of mixed fuel particles of cotton stalk and solid waste and expands the application prospect of biomass.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141772935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Efficient visible light photodegradation of BiVO4:Yb3+/Tm3+ with high content of tetragonal phase","authors":"Han Xie, Mitang Wang, Zhigao Sun, Xiaoyu Lu, Dongliang Zhang, Siqingaowa Jin, Siheng Chen","doi":"10.1007/s11705-024-2473-6","DOIUrl":"10.1007/s11705-024-2473-6","url":null,"abstract":"<div><p>In photocatalytic studies, tetragonal bismuth vanadate (t-BiVO<sub>4</sub>) is not promising due to its wide band gap. However, according to previous studies, the tetragonal phase is inevitable when the monoclinic bismuth vanadate (m-BiVO<sub>4</sub>) is modified. Therefore, it is necessary to find ways to improve the photoresponse and photocatalytic ability of t-BiVO<sub>4</sub> under visible light. In this study, Yb<sup>3+</sup> and Tm<sup>3+</sup> co-doped BiVO<sub>4</sub> was synthesized by a simple hydrothermal method, and its microstructure, morphology and optical properties were characterized and analyzed by scanning electron microscope, transmission electron microscopy, Brunauer-Emmett-Teller, X-ray diffraction, Raman, X-ray photoelectron spectroscopy, diffuse reflectance spectra, photoluminescence, upconversion luminescence and other means. The results show that BiVO<sub>4</sub>:Yb<sup>3+</sup>/Tm<sup>3+</sup> (BVYT) has a high content of tetragonal phase (about 80%), showing the characteristics of t-BiVO<sub>4</sub>. BVYT shows a higher separation efficiency of photogenerated carriers, its transient photocurrent response intensity increased by about 3 times, and the photocatalytic efficiency is significantly improved compare with the undoped m-BiVO<sub>4</sub>. Under simulated sunlight, BVYT completely degraded methylene blue (MB) solution and rhodamine B solution in 45 and 90 min, respectively, and the reaction rate was significantly improved. BVYT also shows excellent photocatalytic ability under visible light, about 35% of MB solution was degraded within 45 min under visible light irradiation (> 420 nm), this is because Yb<sup>3+</sup> effectively promotes the upconversion luminescence of Tm<sup>3+</sup> in response to visible light, and the energy cycle mechanism of Yb-Tm-Tm is proposed. Consequently, BiVO<sub>4</sub> with high content of tetragonal phase has excellent photoactivity, even exceeding m-BiVO<sub>4</sub>. This is a novel discovery in the field of photocatalysis, which provides a broader application prospect for BiVO<sub>4</sub> in photocatalysis.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141772936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoyu Ma, Longlong Wang, Houde She, Yu Zhou, Lei Wang, Jingwei Huang, Qizhao Wang
{"title":"Facile fabrication of CdIn2S4/TiO2 heterojunction for enhanced solar light efficient CO2 reduction","authors":"Xiaoyu Ma, Longlong Wang, Houde She, Yu Zhou, Lei Wang, Jingwei Huang, Qizhao Wang","doi":"10.1007/s11705-024-2456-7","DOIUrl":"10.1007/s11705-024-2456-7","url":null,"abstract":"<div><p>Photocatalytic CO<sub>2</sub> reduction is a promising solution to simultaneously provide renewable chemical fuels and address the greenhouse effect. However, designing practical photocatalysts with advanced architectures remains challenging. Herein, we report the preparation of a novel CdIn<sub>2</sub>S<sub>4</sub>/TiO<sub>2</sub> binary heterojunction via an <i>in situ</i> solvothermal approach, which exhibits superior photocatalytic activity for sunlight-driven CO<sub>2</sub> reduction. The CdIn<sub>2</sub>S<sub>4</sub>/TiO<sub>2</sub> composites exhibit significantly enhanced photocatalytic performance for CO<sub>2</sub> reduction compared to unmodified TiO<sub>2</sub>. Among them, the 3% CdIn<sub>2</sub>S<sub>4</sub>/TiO<sub>2</sub> composite has optimal CO and CH<sub>4</sub> evolution rates of 18.32 and 1.03 µmol·g<sup>−1</sup>·h<sup>−1</sup>, respectively. The yield of CO is 4.7 times higher than that of pristine TiO<sub>2</sub>. This improved photocatalytic activity of the CdIn<sub>2</sub>S<sub>4</sub>/TiO<sub>2</sub> heterostructure can be attributed to its large surface area, extended light absorption range and high separation efficiency of photogenerated electron-hole pairs, which are supported by the results of photoluminescence spectroscopy and the photoelectrochemical measurements. Moreover, the photocatalytic mechanism based on the binary CdIn<sub>2</sub>S<sub>4</sub>/TiO<sub>2</sub> heterojunction is proposed and separation process of photogenerated electron-hole pairs is discussed. In brief, we aim to provide insights into the application of TiO<sub>2</sub> in energy conversion processes through the construction of heterogeneous junctions.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 9","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141832641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New approaches to vibrational spectroscopy of zeolite catalysts: a perspective","authors":"Russell F. Howe","doi":"10.1007/s11705-024-2474-5","DOIUrl":"10.1007/s11705-024-2474-5","url":null,"abstract":"<div><p>This perspective discusses three alternative techniques which complement conventional infrared spectroscopy for obtaining vibrational information about zeolite catalysts and adsorbed molecules: inelastic neutron scattering, infrared micro-spectroscopy, and two-dimensional infrared spectroscopy. The techniques are illustrated briefly and future prospects for their use discussed.</p></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141772938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Plastic upgrading via catalytic pyrolysis with combined metal-modified gallium-based HZSM-5 and MCM-41","authors":"Huaping Lin, Likai Zhu, Ye Liu, Vasilevich Sergey Vladimirovich, Bilainu Oboirien, Yefeng Zhou","doi":"10.1007/s11705-024-2476-3","DOIUrl":"10.1007/s11705-024-2476-3","url":null,"abstract":"<div><p>Currently, the conversion of waste plastics into high-value products via catalytic pyrolysis enables the advancement of plastics’ open-loop recycling. However, enhancing selectivity remains a critical challenge. This study introduces a novel approach to catalytic pyrolysis, utilizing a combination of MCM-41 and modified gallium-based HZSM-5 catalysts, to achieve exceptional selectivity for aromatic liquid-phase products from linear low-density polyethylene. Firstly, to enhance the probability of dehydroaromatization optimization, the type and proportion of metal active sites within the HZSM-5 catalyst are fine-tuned, which would establish equilibrium with acid sites, resulting in a remarkable 15.72% increase in the selectivity of aromatic hydrocarbons. Secondly, to enhance the accessibility of volatiles to active sites, mesoporous MCM-41 with cracking capabilities is introduced. The doping ratio of MCM-41 is meticulously controlled to facilitate the diffusion of cracked volatiles to the active centers of modified gallium-based HZSM-5, enabling efficient reforming reactions. Experimental findings demonstrate that MCM-41 significantly enhances the dehydroaromatization activity of the modified gallium-based HZSM-5 catalyst. Under the influence of MCM-41:Zr<sub>2</sub>Ga<sub>3</sub>/HZSM-5 = 1:2 catalyst, the selectivity for aromatic hydrocarbons reaches an impressive 93.11%, with a notable 60.01% selectivity for benzene, toluene, ethylbenzene, and xylene. Lastly, this study proposes a plausible pathway for the generation of high-value aromatic hydrocarbons using the combined catalyst.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 11","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141650090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rhodium complex-anchored and supramolecular polymer-grafted CdS nanoflower for enhanced photosynthesis of H2O2 and photobiocatalytic C-H bond oxyfunctionalization","authors":"Hongwei Jia, Xiaoyang Yue, Yuying Hou, Fei Huang, Cuiyao Cao, Feifei Jia, Guanhua Liu, Xiaobing Zheng, Yunting Liu, Yanjun Jiang","doi":"10.1007/s11705-024-2465-6","DOIUrl":"10.1007/s11705-024-2465-6","url":null,"abstract":"<div><p>Unspecific peroxygenases exhibit high activity for the selective oxyfunctionalization of inert C(sp<sup>3</sup>)-H bonds using only H<sub>2</sub>O<sub>2</sub> as a clean oxidant, while also exhibiting sensitivity to H<sub>2</sub>O<sub>2</sub> concentration. CdS-based semiconductors are promising for the photosynthesis of H<sub>2</sub>O<sub>2</sub> owing to their adequately negative potential for oxygen reduction reaction via a proton-coupled electron transfer process, however, they suffer from fast H<sub>2</sub>O<sub>2</sub> decomposition on the surface of pristine CdS. Therefore, [Cp*Rh(bpy)H<sub>2</sub>O]<sup>2+</sup>, a highly selective proton-coupled electron transfer catalyst, was anchored onto a supramolecular polymer-grafted CdS nanoflower to construct an efficient integrated photocatalyst for generating H<sub>2</sub>O<sub>2</sub>, mitigating the surface issue of pristine CdS, increasing light absorption, accelerating photonic carrier separation, and enhancing oxygen reduction reaction selectivity to H<sub>2</sub>O<sub>2</sub>. This photocatalyst promoted the light driven H<sub>2</sub>O<sub>2</sub> generation rate up to 1345 µmol·L<sup>−1</sup>·g<sup>−1</sup>·h<sup>−1</sup>, which was 2.4 times that of pristine CdS. The constructed heterojunction photocatalyst could supply H<sub>2</sub>O<sub>2</sub> <i>in situ</i> for nonspecific peroxygenases to catalyze the C-H oxyfunctionalization of ethylbenzene, achieving a yield of 81% and an ee value of 99% under optimum conditions. A wide range of substrates were converted to the corresponding chiral alcohols using this photo-enzyme catalytic system, achieving the corresponding chiral alcohols in good yield (51%–88%) and excellent enantioselectivity (90%–99% ee).</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"18 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141660998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}