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Recent advances in core-shell organic framework-based photocatalysts for energy conversion and environmental remediation

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Journal of Energy Chemistry 2024年第8期95卷 168-199页

作者： Qibing Dong Ximing Li Yanyan Duan Qingyun Tian Xinxin Liang Yiyin Zhu Lin Tian Junjun Wang Atif Sial Yongqian Cui Ke Zhao Chuanyi Wang School of environmental Science and Engineering Shaanxi University of Science and Technology Guangdong Engineering Technology Research Center for environmental Purification and Functional Materials Guangzhou Institute of Industrial Intelligence Helmholtz-Zentrum Berlin für Materialien und Energie Jiangxi Key Lab of Flexible Electronics Flexible Electronics Innovation Institute Jiangxi Science and Technology Normal University

Direct conversion of solar energy into chemical energy in an environmentally friendly manner is one of the most promising strategies to deal with the environmental pollution and energy crisis. Among a variety of materials developed as photocatalysts, the core-shell metal/covalent-organic framework（MOF or COF）photocatalysts have garnered significant attention due to their highly porous structure and the adjustability in both structure and functionality. The existing reviews on core-shell organic framework photocatalytic materials have mainly focused on core-shell MOF materials. However, there is still a lack of indepth reviews specifically addressing the photocatalytic performance of core-shell COFs and MOFs@COFs. Simultaneously, there is an urgent need for a comprehensive review encompassing these three types of core-shell structures. Based on this, this review aims to provide a comprehensive understanding and useful guidelines for the exploration of suitable core-shell organic framework photocatalysts towards appropriate photocatalytic energy conversion and environmental governance. Firstly, the classification, synthesis, formation mechanisms, and reasonable regulation of core-shell organic framework were summarized. Then, the photocatalytic applications of these three kinds of core-shell structures in different areas, such as H2evolution, CO2reduction, and pollutants degradation are emphasized. Finally, the main challenges and development prospects of core-shell organic framework photocatalysts were introduced. This review aims to provide insights into the development of a novel generation of efficient and stable core-shell organic framework materials for energy conversion and environmental remediation.

关键词： Core-shell structure Energy conversion environmental remediation Organic framework Photocatalysis

Rare earth element-modified MOF materials:synthesis and photocatalytic applications in environmental remediation

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Rare Metals 2024年第4期43卷 1390-1406页

作者： Shu-Kun Le Qi-Jie Jin Jia-Ao Han Hua-Cong Zhou Quan-Sheng Liu Fu Yang Jie Miao Pei-Pei Liu Cheng-Zhang Zhu Hai-Tao Xu Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources Chemical Engineering CollegeInner Mongolia University of Technology School of environmental Science and Engineering Nanjing Tech University School of environmental and Chemical Engineering Jiangsu University of Science and Technology Institut National de la Recherche Scientifique-énergie Matériaux et Télécommunications

Metal-organic framework-like materials（MOFs）have been developed in the fields of photocatalysis for their excellent optical properties and physicochemical properties,including environmental remediation,CO2 photoreduction,water splitting,and so on.With their important roles in various fields,rare earth elements have received growing interests from scientists.Modifying MOFs with rare earth elements for modification allows broadening the absorption spectrum,while the active electrons on their empty 4f orbitals can act as traps to capture photoexcited carriers to inhibit the recombination of electron-hole pairs,thus promoting photocatalytic activity.Therefore,rare earth elements modified MOFs provide an attractive way to achieve their high value utilization.In this mini-review,the synthesis of rare earth element-modified MOFs photocatalysts and corresponding applications in the removal of antibiotics,CO2reduction,and hydrogen production are constructively summarized and discussed.Finally,the latest advancements and current difficulties of these materials as well as the application prospects are also provided.

关键词： Rare earth metals MOFs Photocatalytic CO 2 reduction environmental remediation Water splitting

Electrospun Semiconductor-Based Nano-Heterostructures for Photocatalytic Energy Conversion and environmental remediation:Opportunities and Challenges

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Energy & environmental Materials 2023年第2期6卷 212-238页

作者： Na Lu Mingyi Zhang Xuedong Jing Peng Zhang Yongan Zhu Zhenyi Zhang Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission Key Laboratory of Photosensitive Materials and Devices of Liaoning ProvinceSchool of Physics and Materials EngineeringDalian Minzu UniversityDalian 116600China Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 45001China

Harvesting solar energy to drive the semiconductor photocatalysis offers a promising tactic to address ever-growing challenges of both energy shortage and environmental pollution.Design and synthesis of nano-heterostructure photocatalysts with controllable components and morphologies are the key factors for achieving highly efficient photocatalytic processes.Onedimensional(1D)semiconductor nanofibers produced by electrospinning possess a large ratio of length to diameter,high ratio of surface to volume,small grain sizes,and high porosity,which are ideally suited for photocatalytic reactions from the viewpoint of structure advantage.After the secondary treatment of these nanofibers through the solvothermal,gas reduction,in situ doping,or assembly methods,the multi-component nanofibers with hierarchical nano-heterostructures can be obtained to further enhance their light absorption and charge carrier separation during the photocatalytic processes.In recent years,the electrospun semiconductorbased nano-heterostructures have become a“hot topic”in the fields of photocatalytic energy conversion and environmental remediation.This review article summarizes the recent progress in electrospinning synthesis of various kinds of high-performance semiconductor-based nano-heterostructure photocatalysts for H2 production,CO_(2) reduction,and decomposition of pollutants.The future perspectives of these materials are also discussed.

关键词： electrospun nanofibers energy conversion environmental remediation photocatalysis semiconductor heterojunction

Bio-capped and green synthesis of ZnO/g-C_(3)N_(4) nanocomposites and its improved antibiotic and photocatalytic activities: An exceptional approach towards environmental remediation

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Chinese Journal of Chemical Engineering 2023年第4期56卷 215-224页

作者： Iltaf Khan Chunjuan Wang Shoaib Khan Jinyin Chen Aftab Khan Sayyar Ali Shah Aihua Yuan Sohail Khan Mehwish KButt Humaira Asghar School of environmental&Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China College of Agriculture Shihezi UniversityShihezi 832003China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops Northeast Agricultural UniversityHarbin 150030China Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables College of AgronomyJiangxi Agricultural UniversityNanchang 330045China Department of Pharmacy University of SwabiKhyber Pakhtunkhwa 94640Pakistan Department of Physics University of Agriculture FaisalabadFaisalabad 38040Pakistan Department of Chemistry Government College University FaisalabadFaisalabad 38000Pakistan

In this research study, we have synthesized the bio-capped ZnO/g-C_(3)N_(4) nanocomposites by employing lemon juice(Citrus limon) as a stabilizer and mediator. Fruitfully, lemon juice which contains various acidic functional groups and citric acid has the capability to block the surface of g-C_(3)N_(4) from chemical reactivity and activated the surface of g-C_(3)N_(4) for various reactions. Consequently, the agglomeration behavior and controlled shape of g-C_(3)N_(4) has also been achieved. Our experimental results i.e. XRD,TEM, HRTEM, PL, FS, XPS, and PEC have confirmed that the lemon juice mediated and green g-C_(3)N_(4)(L-CN) have good performances and remarkable visible light photocatalytic activities as compared to the chemically synthesized g-C_(3)N_(4)(CN). Furthermore, the small surface area and low charge separation of g-C_(3)N_(4) is upgraded by coupling with Zn O nanoparticles. It is proved that the coupling of Zn O worked as a facilitator and photoelectron modulator to enhance the charge separation of g-C_(3)N_(4). Compared to pristine lemon-mediated green g-C_(3)N_(4)(L-CN), the most active sample 5Zn O/L-CN showed ~ 5-fold improvement in activities for ciprofloxacin(CIP) and methylene blue(MB) degradation. More specifically,the mineralization process and degradation pathways, and the mineralization process of ciprofloxacin(CIP) and methylene blue(MB) are suggested. Finally, our present novel research work will provide new access to synthesize the eco-friendly and bio-caped green g-C_(3)N_(4)nanomaterials and their employment for pollutants degradation and environmental purification.

关键词： Bio-caped green g-C_(3)N_(4) Lemon juice mediators ZnO/g-C_(3)N_(4)nanocomposite environmental remediation Degradation pathways

Recent status and future perspectives of ZnIn_(2)S_(4) for energy conversion and environmental remediation

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Chinese Chemical Letters 2023年第7期34卷 45-57页

作者： Mengzhu Li Longlu Wang Xinyu Zhang Weinan Yin Yingbo Zhang Jingwen Li Ziyang Yin Yuntao Cai Shujuan Liu Qiang Zhao College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology).Nanjing University of Posts and Telecommunications(NUPT) Nanjing 210023China State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Geographic and Biologic Information Nanjing University of Posts and TelecommunicationsNanjing 210023China

Zinc indium sulfide (ZnIn_(2)S_(4)),a novel photocatalyst,has attracted considerable attention and been extensively studied over the past few years owing to its various advantages such as nontoxicity,structural stability,easy availability,suitable band gap and fascinating photocatalytic activity.This review mainly focuses on the recent state-of-art progress of ZnIn_(2)S_(4)-based photocatalysts.First,we briefly introduced preparation methods of ZnIn_(2)S_(4) with diverse morphological structures.Then,considering the photocatalytic activity of pristine ZnIn_(2)S_(4) would be confined by rapid recombination of photo-generated electronhole pairs and limited light absorption range,different modulation strategies such as layer and size control,doping,vacancy engineering and hetero-nanostructures were expounded in detail.Afterwards,the applications of ZnIn_(2)S_(4) in various fields such as H_(2) production,CO_(2) reduction,value-added products synthesis,pollutant purification and N_(2) fixation are clearly summarized.In the end,we sorted out the conclusions and outlook,aiming to provide some new insights for this fascinating material.

关键词： ZnIn_(2)S_(4) Photocatalysis Energy conversion environmental remediation Hydrogen evolution

Property-performance relationship of core-shell structured black TiO_(2) photocatalyst for environmental remediation

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Frontiers of environmental Science & Engineering 2023年第9期17卷 177-195页

作者： Sajjad Haider Rab Nawaz Muzammil Anjum Tahir Haneef Vipin Kumar Oad Salah Uddinkhan Rawaiz Khan Muhammad Aqif Chemical Engineering Department College of EngineeringKing Saud UniversityRiyadh 11421Saudi Arabia Department of environmental Sciences Institute of Soil and Environmental SciencesPir Mehr Ali Shah Arid Agriculture University ShamsabadRawalpindi 46300Pakistan Centre of Innovative Nanostructures and Nanodevices(COINN) Institute of Autonomous SystemUniversiti Teknologi PETRONASBandar Seri Iskandar 32610Malaysia Civil and environmental Engineering Department The University of Alabama in HuntsvilleHuntsvilleAL 35899USA Faculty of Civil and environmental Engineering Gdansk University of TechnologyGdansk 80-233Poland College of Engineering King Saud UniversityRiyadh 11421Saudi Arabia Restorative Dental Sciences Department College of DentistryKing Saud UniversityRiyadh 11545Saudi Arabia Faculty of Materials and Chemical Engineering Department of Chemical EngineeringGhulam Ishaq Khan InstituteKhyber Pakhtunkhwa Topi 23460Pakistan

Understanding the relationship between the properties and performance of black titanium dioxide with core-shell structure(CSBT)for environmental remediation is crucial for improving its prospects in practical applications.In this study,CSBT was synthesized using a glycerol-assisted sol-gel approach.The effect of different water-to-glycerol ratios(W:G=1:0,9:1,2:1,and 1:1)on the semiconducting and physicochemical properties of CSBT was investigated.The effectiveness of CSBT in removing phenolic compounds(PHCs)from real agro-industrial wastewater was studied.The CSBT synthesized with a W:G ratio of 9:1 has optimized properties for enhanced removal of PHCs.It has a distinct coreshell structure and an appropriate amount of Ti3+cations(11.18%),which play a crucial role in enhancing the performance of CSBT.When exposed to visible light,the CSBT performed better:48.30%of PHCs were removed after 180 min,compared to only 21.95%for TiO_(2) without core-shell structure.The CSBT consumed only 45.5235 kWh/m^(3) of electrical energy per order of magnitude and cost$2.4127 per unit volume of treated agro-industrial wastewater.Under the conditions tested,the CSBT demonstrated exceptional stability and reusability.The CSBT showed promising results in the treatment of phenols-containing agro-industrial wastewater.

关键词： Black TiO_(2) Core-shell structure Property-performance relationship Agro-industrial effluent environmental remediation

NIR-plasmon-enhanced Systems for Energy Conversion and environmental remediation

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Chemical Research in Chinese Universities 2020年第6期36卷 1000-1005页

作者： WANG Wenke Sandra Elizabeth SAJI Siva KARUTURI ZHENG Hong MENG Guodong CHENG Yonghong YIN Zongyou Center of Nanomaterials for Renewable Energy(CNRE) State Key Laboratory of Electrical Insulation and Power EquipmentSchool of Electrical EngineeringXi'an Jiaotong UniversityXi'an 710049P.R.China Research School of Chemistry Australian National UniversityACT 2601Australia Research School of Physics and Research School of Electrical Energy and Materials EngineeringAustralian National UniversityCanberraATC 2601Australia

The introduction of plasmons is an important method to solve the insufficient utilization of the full spectrum of solar energy by semiconductor catalysts.However,semiconductor catalysts combined with traditional noble metal plasmons(Au,Ag)can only extend the absorption spectrum to partially visible light.In order to further improve the photoenergy absorption efficiency of catalysts,they need to be able to effectively utilize near-infrared light,which has become a new research direction.Recent studies have shown that traditional noble metal plasmons can absorb a part of NIR through special morphology,size control and material composite.At the same time,gratifying achievements have been made in the application of plasmonic semiconductors with broad spectrum absorption in catalysis.This article reviews the principles of generating and regulating plasmonic effects in different catalytic systems.The applications of plasmon absorption of near-infrared light in energy conversion and environmental remediation have also been presented.

关键词： Near-infrared Plasmon Energy conversion environmental remediation

Recent advances in BiOBr-based photocatalysts for environmental remediation

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Chinese Chemical Letters 2021年第11期32卷 3265-3276页

作者： Lingyou Meng Yang Qu Liqiang Jing Key Laboratory of Functional Inorganic Materials Chemistry School of Chemistry and Material SciencesHeilongjiang UniversityHarbin 150080China

The efficient utilization of solar energy through photocatalysis is ideal for solving environmental issues and the development sustainable future.BiOBr-based semiconductors possess unique narrowed bandgaps and layered structures,thereby widely studied as photocatalysts for environmental remediation.However,a little has been focused on the comprehensive reviewing of BiOBr despite its extensive and promising applications.In this review,the state-of-the-art developments of BiOBr-based photocatalysts for environmental remediation are summarized.Particular focus is paid to the synthetic strategies for the control of the resulting morphologies,as well as efficient modification strategies for improving the photocatalytic activities.These include boosting the bulk phase by charge separation,enhancing the spatial charge separation,and engineering the surface states.The environmental uses of BiOBr-based photocatalysts are also reviewed in terms of purification of pollutants and CO_(2) reduction.Finally,future challenges and opportunities of BiOBr-based materials in photocatalysis are discussed.Overall,this review provides a good basis for future exploration of high-efficiency solar-driven photocatalysts for environmental sustainability.

关键词： BiOBr Visible-light photocatalysis Electron modulation Charge separation environmental remediation

Bio/hydrochar Sorbents for environmental remediation

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Energy & environmental Materials 2020年第4期3卷 453-468页

作者： Xingguang Zhang Yang Wang Junmeng Cai Karen Wilson Adam F.Lee College of Chemical Engineering Nanjing Forestry UniversityNanjing 210037China Department of Chemistry School of ScienceUniversity of Shanghai for Science and TechnologyShanghai 200093China Biomass Energy Engineering Research Center School of Agriculture and BiologyShanghai Jiao Tong UniversityShanghai 200240China School of Science RMIT UniversityMelbourne VIC 3000Australia

A rising global population and aspirational higher living standards has driven a step change in resource utilization and concomitant anthropogenic pollution across the biosphere.Low-cost and scalable technologies for environmental remediation are therefore urgently sought,with an emphasis on trash-to-treasure strategies that exploit abundant but underutilized waste by-products of existing sectors.Biochars are carbon-rich,porous solids produced by biomass pyrolysis under anaerobic or oxygen-scarce conditions at high temperature(350–700°C),while hydrochars are produced by hydrothermal biomass carbonization at lower temperature(130–250°C)and high autogenous pressures(0.3–4.0 MPa).Bio/hydrochars possess unique physicochemical properties,notably high surface areas(100–1500 m2 g-1)and porosity(0.25–2.5 cm^(3)g^(-1))and rich surface chemistry featuring carboxylic,phenolic,hydroxyl,and carbonyl functions,amenable to chemical,physical,or biochemical modification,rendering them ideal sorbents for pollutants such as heavy metals(e.g.As and Cr),and toxic organic(e.g.,dyes and xenobiotics)and inorganic(e.g.,SO_(2))molecules.Bio/hydrochars are attractive for environmental remediation of pollutant mixtures by surface complexation,redox chemistry,electrostatic interactions/ion exchange,or coprecipitation.This review discusses recent opportunities and challenges in creating bio/hydrochar sorbents and their nanocomposites through grafting,doping,and chemical/physical activation,for the depollution of aquatic and atmospheric environments.

关键词： adsorption biochar environmental remediation hydrochar