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Efficient photocatalytic NADH regeneration with Rh-loaded Z-scheme mediator-free system

Chinese Chemical Letters 2024年第2期35卷 496-500页

作者： Yi Zhou Yiling He Ming Gao ningkai ding Juying Lei Yanbo Zhou State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery East China University of Science and TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Nicotinamide adenine dinucleotide(NADH)regeneration is necessary for the sustainable application of enzymatic *** Rh-based complex[Cp^(*)Rh(bpy)(H)]+has been widely used as an important mediator in NADH regeneration systems,but it is limited by complexity and high ***,a Z-scheme was constructed by loading Rh onto carbon nitride nanosheets/carbon nitride quantum dots(CN-CNQD).The resultant catalyst achieved a high yield of NADH in a mediator-free(M-free)system of 0.283 mmol L^(−1) g^(−1) min^(−1),which is 5.29 times that of pure *** enzyme introduction experiments confirmed that the enzyme active product 1,4-NADH could reach 34.21%selectivity in the M-free *** research revealed that the heterojunction between CNs and CNQDs improved the NADH regeneration activity in the traditional M-involved system,while Rh loading was proved to optimize the yield and selectivity of 1,4-NADH in M-free *** immobilized Rh shows more competitiveness than[Cp^(*)Rh(bpy)(H)]^(+).This study contributes to the construction of an M-free system for further application in greener,lower-cost enzymatic processes.

关键词： Photocatalysis NADH regeneration Mediator-free Carbon nitride Z-scheme

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Fluorinated inverse opal carbon nitride combined with vanadium pentoxide as a Z-scheme photocatalyst with enhanced photocatalytic activity

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Chinese Chemical Letters 2022年第8期33卷 3797-3801页

作者： ningkai ding Bin Chen Liang Zhou Lingzhi Wang Yongdi Liu Jinlong Zhang Juying Lei State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China

In this work,Z-scheme V_(2)O_(5) loaded fluorinated inverse opal carbon nitride(IO F-CN/V_(2)O_(5)) was synthesized as a product of ternary collaborative modification with heterostructure construction,element doping and inverse opal *** catalyst presented the highest photocatalytic activity and rate constant for degradation of typical organic pollutants Rhodamine B(RhB)and was also used for the efficient removal of antibiotics,represented by norfloxacin(NOR),sulfadiazine(SD)and levofloxacin(LVX).Characterizations confirmed its increased specific surface area,narrowed bandgap,and enhanced visible light utilization *** mechanism study including band structure study and electron paramagnetic resonance(EPR)proved the successful construction of Z-scheme heterojunction,which improved photogenerated charge carrier migration and provide sufficient free radicals for the degradation *** combination of different modifications contributed to the synergetic improvement of removal efficiency towards different organic pollutants.

关键词： Carbon nitride Inverse opal structure Vanadium pentoxide Fluorinate Organic pollutants degradation

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计及新能源接入的地区电网人工智能无功优化

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电网与清洁能源 2023年第1期39卷 133-142页

作者：王浩哲丁爱飞陆继翔张韬陈建华唐宁恺束蛟南瑞集团有限公司(国网电力科学研究院有限公司) 江苏南京211106 国电南瑞吉电新能源(南京)有限公司江苏南京211106 智能电网保护和运行控制国家重点实验室江苏南京211106

为了提升用户用电质量,降低系统网损,改善电压质量,针对传统AVC系统控制手段单一、控制灵敏度计算不完备、无功装置动作频繁、应对电压频繁波动存在控制盲区等问题,该文提出一种基于Attention-LSTM算法的在线无功优化模型。利用Attentio... 详细信息

为了提升用户用电质量,降低系统网损,改善电压质量,针对传统AVC系统控制手段单一、控制灵敏度计算不完备、无功装置动作频繁、应对电压频繁波动存在控制盲区等问题,该文提出一种基于Attention-LSTM算法的在线无功优化模型。利用Attention-LSTM算法挖掘电气特征与电压的非线性关系,再综合考虑降低电压偏差、减少动作次数及提高光伏无功利用率等因素,并根据地区电网电压偏差和波动的优化目标,建立了光伏、变压器、电容器高效协同配合的电压无功优化控制模型。最后以江苏某地区配电系统为实例,进行仿真及实验验证,结果表明了所提方法的有效性和实用性。

关键词：新能源无功优化电压控制人工智能 Attention-LSTM

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