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[資源]
Bismuth Oxyhalide Nanomaterials: Layered Structures Meet Photocatalysis
最近,華中師范大學(xué)張禮知教授在nanoscale上撰寫(xiě)了一篇名為”Bismuth Oxyhalide Nanomaterials: Layered Structures Meet Photocatalysis“的光催化綜述文章。該文章總結(jié)了層狀鹵氧化鉍納米材料的合成策略及其生長(zhǎng)機(jī)理,提出了調(diào)控其層狀結(jié)構(gòu)的設(shè)計(jì)準(zhǔn)則。作者重點(diǎn)闡述了鹵氧化鉍層狀結(jié)構(gòu)依賴(lài)的性質(zhì),例如pH相關(guān)的晶面暴露和晶相轉(zhuǎn)換、晶面依賴(lài)的光催化活性和分子氧活化途徑,進(jìn)而指出了鹵氧化鉍層狀依賴(lài)的光活性的實(shí)質(zhì)原因。再者,作者概括了通過(guò)調(diào)控鹵氧化鉍層狀結(jié)構(gòu)來(lái)增強(qiáng)其光催化活性的一些策略,比如內(nèi)電場(chǎng)調(diào)控、脫鹵效應(yīng)、表面功能化、摻雜、等離子修飾以及構(gòu)筑異質(zhì)結(jié),為未來(lái)高效鹵氧化鉍基光催化材料的設(shè)計(jì)提供了有效的幫助。在文章的最后,作者指出了在調(diào)控鹵氧化鉍層狀結(jié)構(gòu)依賴(lài)的性質(zhì)方面所存在的一些關(guān)鍵性的科學(xué)問(wèn)題,進(jìn)而為增強(qiáng)鹵氧化鉍光催化活性的后續(xù)研究提出了一些有益的意見(jiàn)。該文章全文16頁(yè),參考文獻(xiàn)208篇。
In recent years layered bismuth oxyhalide nanomaterials have received more and more concerns as promising photocatalysts because their unique layered structures endow them with fascinating physicochemical properties and thus great potential photocatalytic applications for environment remediation and energy harvesting. In this article we explore the synthesis strategies and growth mechanisms of layered bismuth oxyhalide nanomaterials and then propose design principles of tailoring layered configuration to control nanoarchitectures for high efficient photocatalysis. Subsequently, we focus on their layered structure dependent properties including pH related crystal facet exposure and phase transformation, and facet-dependent photoactivity and molecular oxygen activation pathways, so as to clarify the origin of layered structure dependent photoreactivity. Furthermore, we summarize various strategies of modulating the composition and arrangement of layered structures to enhance the photoactivity of nanostructured bismuth oxyhalides via internal electric field tuning, dehalogenation effect, surface functionalization, doping, plasmon modification, and heterojunction construction, which may offer efficient guidance for the design and construction of high-performance bismuth oxyhalide-based photocatalysis systems. Finally, we highlight some crucial issues in engineering the layered-structure mediated properties of bismuth oxyhalide photocatalysts and give tentative suggestions for future research on increasing their photocatalytic performance.
1. Introduction
2. Synthesis of Layered Bismuth Oxyhalides Nanomaterials
2.1 Synthesis Strategies of Nanostructured Bismuth Oxyhalides
2.2 Growth Mechanisms and Design Principles of Layered Configuration Mediated Nanoarchitectures for Bismuth Oxyhalides
3. Layered Structure Dependent Properties
3.1 Layered Structure Dependent Electronic Structures
3.2 Layered Structure Dependent Phase Transformation and Facet Exposure
3.3 Layered Structure Dependent Oxygen Activation
4. Layered Structure Tuning for Photoactivity Enhancement
4.1 Internal Electric Field Tuning
4.2 Dehalogenation Effect
4.3 Surface Functionalization
4.4 Doping
4.5 The Construction of Plasmonic Photocatalysis System
4.6 The Heterojunction Construction
5. Conclusion Remarks and Perspectives![Bismuth Oxyhalide Nanomaterials: Layered Structures Meet Photocatalysis]()
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