Artificial Thylakoid for the Coordinated Photoenzymatic Reduction of Carbon Dioxide

Zhang, Shaohua; Shi, Jiafu; Sun, Yiying; Wu, Yizhou; Zhang, Yishan; Cai, Ziyi; Chen, Yixuan; You, Chun; Han, Pingping; Jiang, Zhongyi

doi:10.1021/acscatal.9b00255

Cited by 103 publications

(74 citation statements)

References 63 publications

(124 reference statements)

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“…In this way, photocatalytic oxidation and enzymatic CO 2 reduction were decoupled so that the enzymes were protected from photoinduced reactive oxygen species (ROS). This biohybrid system has demonstrated a high rate and yield in renewing NADH and thus generated 85 mM methanol from CO 2 in 2 h. 199…”

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confidence: 98%

“…The product of CO 2 reduction can be extended from formate to methanol via an enzyme cascade. [197][198][199] A prototypical PEC system employed CoP i -modified a-Fe 2 O 3 and BiFeO 3 as the photoanode and photocathode, respectively, and contained a mixture of enzymes, i.e., FDH, formaldehyde dehydrogenase and alcohol dehydrogenase, in the cathodic chamber. 198 Electrons extracted from water are energised by photoelectrodes and vectored through enzyme cascades to reduce CO 2 to methanol via NADH and diffusional electron mediators.…”

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confidence: 99%

“…198 An enzyme cascade was also immobilised in a silica matrix to work with an ''artificial thylakoid'' in a colloidal system. 199 The ''artificial thylakoid'' constituted a microporous protamine-TiO 2 hollow sphere (microcapsule) with CdS nanoparticles deposited on its luminal surface. The TiO 2 microcapsule received electrons from the excited CdS and exported electrons to regenerate NADH that furnished the enzyme cascade with reducing equivalents.…”

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confidence: 99%

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Semi-biological approaches to solar-to-chemical conversion

2020

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Semi-biological approaches to solar-to-chemical conversion

2020

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“…Although encouraging achievements have been made in light activation of immobilized enzymes, it is important to protect enzymes from deactivation by excessive temperatures and photogenerated holes, as well as reactive oxygen species, especially for constructing a nanobiocatalyst using semiconductor nanomaterials as supports [85].…”

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confidence: 99%

Recent Advances in Enzyme-Nanostructure Biocatalysts with Enhanced Activity

Zhang

et al. 2020

Catalysts

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Owing to their unique physicochemical properties and comparable size to biomacromolecules, functional nanostructures have served as powerful supports to construct enzyme-nanostructure biocatalysts (nanobiocatalysts). Of particular importance, recent years have witnessed the development of novel nanobiocatalysts with remarkably increased enzyme activities. This review provides a comprehensive description of recent advances in the field of nanobiocatalysts, with systematic elaboration of the underlying mechanisms of activity enhancement, including metal ion activation, electron transfer, morphology effects, mass transfer limitations, and conformation changes. The nanobiocatalysts highlighted here are expected to provide an insight into enzyme-nanostructure interaction, and provide a guideline for future design of high-efficiency nanobiocatalysts in both fundamental research and practical applications.Catalysts 2020, 10, 338 2 of 15 nanoscale supports, such as nanoparticles, nanowires, microspheres, metal-organic frameworks, and nanoflowers, has also drawn extensive attention in recent years [5,[16][17][18][19][20][21][22]. A great deal of effort has also been made to design nanostructured supports with a variety of components including noble metal (e.g., Au) [23,24], metal oxides (e.g., Cu 2 O, Fe 3 O 4 , SiO 2 , Ti 8 O 15 , alumina) [16,25-33], polymer (e.g., Cu 2+ /PAA/PPEGA matrix, aldehyde-derived Pluronic polymer, polycaprolactone) [34-36], metal-organic frameworks (e.g., zeolitic imidazolate framework) [37-39], carbon based (e.g., carbon dots, carbon nanotubes) [40-44], and complex compounds (e.g., Cu 3 (PO 4 ) 2 ·3H 2 O, Ca 3 (PO 4 ) 2 , Co 3 (PO 4 ) 2 ·8H 2 O, Mn 3 (PO 4 ) 2 , Ca 8 H 2 (PO 4 ) 6 , Cu 4 (OH) 6 )SO 4 , CaHPO 4 , Zn 3 (PO 4 ) 2 , Mg-Al layered double hydroxide, CdSe/ZnS quantum dots) [17,[45][46][47][48][49][50][51][52][53][54][55][56][57][58][59]. These representative supports, which possess unique chemical and physical properties, such as controllable release of ion activator and synergic catalysts and response to external stimuli, are able to regulate the enzyme-support interaction and eventually lead to an unprecedented enhancement in immobilized enzyme activity [7,60,61].Overall, recent years have witnessed great success in the interactions between artificial nanostructured supports and natural enzymes for enhanced activity. This review will focus on recent advances in this field in the past 10 years, with an emphasis on various mechanisms behind the boosted catalytic activities, including reduced mass transfer limitation, interfacial ion activation, local heating effect, synergistic effects, conformational changes, substrate channeling and so on. A better understanding of the relationship between the characteristics of the nanostructured supports and the enhanced activities of nanobiocatalysts, may provide new insights in designing efficient nanobiocatalysts for various applications. Mechanisms behind Enhanced Activities of NanobiocatalystsAn overview of recently reported nanobiocatalyst...

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“…Using solar energy to convert CO 2 into valuable fuels or chemicals is extremely attractive due to its dual function of the reduction of the greenhouse effect and also as an alternative energy source to fossil fuels. Recently, different kinds of materials, such as semiconductor materials, [1][2][3] metal complexes, [4][5][6] and bioenzyme catalysts, 7 have been explored for photocatalytic CO 2 reduction.…”

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confidence: 99%