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...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.展开更多
文摘为了获得发芽力较好的种用油菜籽,以及提高其真空干燥效率,将Weibull分布函数应用于油菜籽真空干燥动力学特性的研究。在装载量(50±0.5) g条件下,将初始含水率(M)为16.12%、18.19%、20.26%的油菜籽样品分别置于不同温度(T)(40、50、60、70、80℃)以及不同真空度(V)(0.03、0.04、0.05、0.06、0.07 MPa)进行实验。考察初始含水率(M)、温度(T)及真空度(V)对油菜籽干燥特性的影响。利用决定系数(R^2)、均方根误差(RMSE)、卡方(χ)~23个指标对拟合结果进行评价。对尺度参数(α)、形状参数(β)、水分扩散系数(D^(eff))、有效扩散系数估算值(D_(cal))和几何参数(R_g)进行解析。结果表明,尺度参数(α)与温度(T)和真空度(V)呈负相关,与初始含水率(M)呈正相关;形状参数(β)值均低于1,水分扩散系数(D_(eff))值为6.051×10^(-9)～2.908×10^(-8)m^2/s,几何参数(R_g)值均低于1,油菜籽真空干燥活化能(E_a)为22.369 k J/mol;温度(T)与平均干燥速率(r)呈正相关,与发芽率(g)和芽长(l)呈负相关;真空度(V)仅与平均干燥速率(r)呈正相关;初始含水率(M)与单位能耗(e)呈正相关,与发芽率(g)、芽长(l)以及平均干燥速率(r)均呈负相关。
基金Supported by the State Key Laboratory of Electrical Insulation and Power Equipment at Xi'an Jiaotong University,China(No.IPE19203).
文摘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.
