Hierarchical TiO2 Flower-spheres with Large Surface Area and High Scattering Ability: an Excellent Candidate for High Efficiency Dye Sensitized Solar Cells

Hierarchical TiO₂ flower-spheres assembled from porous nanosheets-stacked of nanoparticles were synthesized by a simple hydrothermal method with one-step. The as-prepared TiO₂ flower-spheres showed a diameter range from 200 nm to 550 nm and a large surface area of 188 m²/g. A double layer photoanode made of P25 nanoparticles and as-prepared TiO₂ flower-spheres was fabricated for the dye sensitized solar cells(DSSCs). The efficient light scattering and dye absorption of the photoanode can be attributed to the top-layer of hierarchical TiO₂ flower-spheres. DSSCs based on the double layers photoanode exhibit a higher energy conversion efficiency of 8.11% with a short-circuit photocurrent density of 17.87 mA/cm², indicating that there is an increase of 38% in the conversion efficiency compared to those based on electrode P25(5.91%, 14.09 mA/cm²).     

脉冲沉积制备Cu_2O/TiO_2纳米管异质结的可见光光催化性能

在用阳极氧化法制备有序排列TiO2纳米管阵列薄膜的基础上,引入脉冲沉积工艺,成功实现了均匀、弥散分布的Cu2O纳米颗粒修饰改性TiO2纳米管阵列,形成Cu2O/TiO2纳米管异质结复合材料.利用场发射扫描电镜(FESEM)、场发射透射电镜(FETEM)、X射线衍射(XRD)、X射线光电子能谱(XPS)和紫外-可见漫反射光谱(UV-Vis DRS)对样品进行表征,重点研究了Cu2O/TiO2纳米管异质结的光电化学特性和对甲基橙(MO)的可见光催化降解性能.结果表明,Cu2O纳米颗粒均匀附着在TiO2纳米管阵列的管口和中部位置,所制备的Cu2O/TiO2纳米管异质结具有高效的可见光光催化性能;在浓度为0.01 mol?L-1的CuSO4溶液中制得的Cu2O/TiO2纳米管异质结表现出最好的电化学特性和光催化性能;另外,对Cu2O纳米颗粒影响光催化活性的机理进行了讨论.     

一步法制备二氧化钛-金复合材料及其光解水制氢性能

以钛粉为还原剂,氯金酸为氧化剂,将二者在180 ℃水热反应釜中发生氧化还原反应,最终生成直径800 nm左右的TiO₂,比表面积为3.5 m²/g左右,其表面均匀担载了直径20 nm左右的金纳米颗粒。 采用X射线衍射(XRD)、场发射扫描电子显微镜(FE-SEM)、X射线光电子能谱分析(XPS)、紫外可见漫反射光谱、光电流密度、光催化制氢性能等测试表征了该复合催化剂的结构及性能。 结果表明,一步法制备的复合催化剂形貌规整,TiO₂为锐钛矿晶型,金纳米颗粒的局域表面等离子体共振(LSPR)作用促进了催化剂对可见光有较强的吸收,催化剂催化产氢性能伴随金含量增大存在先增后减规律,可见光下最大产氢速率为0.1 μmol/(g·h),光催化活性表现稳定。     

Ti/TiO_2纳米管阵列/PbO_2-Pr电极制备及在电氧化有机废水中应用

以二氧化钛纳米管阵列(TiO_2NTs)为基体,利用脉冲电沉积的方法将Pr掺杂的PbO_2修饰到TiO_2NTs管中,制备出新型电极材料Ti/TiO_2NTs/nanoPbO_2-Pr用来降解有机废水。通过循环伏安测试(CV)和线性伏安法(LSV)等手段对电极性能进行评估,研究表明,新型电极材料Ti/TiO_2NTs/nanoPbO_2-Pr具有高的电催化活性。利用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)等对其进行表面形貌、晶形结构和元素组成进行研究。结果表明,通过脉冲电沉积成功将Pr-PbO_2沉积到TiO_2纳米管中,其中元素Pr是以Pr_2O_3形式存在。亚甲基蓝降解实验证明,Ti/TiO_2NTs/nanoPbO_2-Pr电极降解120min后亚甲基蓝的去除率高达99.8%。     

一维TiO2锐钛矿/金红石异相结的制备及光催化降解甲醛性能

TiO₂异相结主要通过高温方法制备,所制备材料的形貌和组成较难控制,尤其是在较低温度下一步制备一维TiO₂异相结仍具有一定的挑战性。采用简单、方便的一步水热法,在较低温度下(180℃)制备了一维纳米TiO₂异相结材料。X射线衍射(XRD)和高分辨透射电镜(HRTEM)分析表明,制备的材料以一维金红石相TiO₂纳米棒(长度：(400±50) nm,直径：(60±5) nm)为基本结构,粒径分布均匀的锐钛矿相TiO₂纳米粒子(直径：(9.5±0.5) nm)高密度、单分散地负载在纳米棒上。通过控制水热反应时间成功调控了异相结中锐钛矿相TiO₂的含量(20%～50%),进而实现了其光催化降解HCHO性能的调控。实验结果表明,当锐钛矿相TiO₂的含量为33%时(TiO₂-24,水热时间24 h制备的样品),异相结光催化剂表现出最佳的HCHO降解性能：在低光强LED灯(波长为365 nm,光强为12.26 mW·cm     

Synthesis of Gd-N Codoped Porous TiO2 Photocatalyst and Its Enhanced Photocatalytic Activities

Visible-light-active Gd-N codoped porous TiO₂(Gd-N-TiO₂) photocatalyst was fabricated by an evapora-tion-induced self-assembly route using surfactants as structure-directed agents. As-prepared samples were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy(TEM), X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller(BET) method, and ultraviolet-visible absorption spectroscopy. The results indicated that synergistic reaction occurred when codoping with Gd³⁺ and N, which enhanced the light absorption properties of TiO₂. Irregular worm-like particles with wide interparticle spaces were clearly observed by TEM. The average particle size of Gd-N-TiO₂ decreased to ca. 8 nm because co-doping inhibited the particles growth significantly. Thus, the specific surface area of Gd-N-TiO₂(198.7 m²/g) was higher than that of Degussa P25 TiO₂(50 m²/g). Gd-N-TiO₂ exhibited a high photocatalytic activity toward methyl orange degradation under UV-Vis or visible-light irradiation. The Gd-N-TiO₂ catalyst also presented a stable performance without losing activity after four successive photocatalytic experiments. The facile synthesis and excellent activity of Gd-N-TiO₂ indicated its great potential as industrial catalysts for wastewater treatment.     

Enhanced Efficiency of Dye-sensitized Solar Cells Using rGO@TiO2 Nanotube Hybrids

We established a novel strategy for the synthesis of reduced graphene oxide(rGO)@TiO₂ nanotube hybrids using an 18 W UV-assisted photo-catalytic reduction method for utilization as photo-anode of dye-sensitized solar cells(DSSCs). The photo-conversion efficiency of DSSCs was significantly enhanced after the addition of rGO, and in addition, the photo-anode showed decreased internal resistance. Analysis of rGO@TiO₂ hybrids by transmissions scanning electron microscopy(TEM), X-ray diffraction(XRD), Raman spectra, N₂ adsorption and desorption, atomic force microscopy(AFM) and X-ray photoelectron spectroscopy(XPS) demonstrates that the rGO modified TiO₂ nanotubes can increase the short-circuit current and the conversion efficiency of dye-sensitized solar cells. The efficiency is improved by almost two folds as much compared to those of the bare TiO₂ nanotubes.     

混合相二氧化钛石墨烯复合物的制备及光催化性能

采用水热法制备了一系列混合相二氧化钛-石墨烯(TrG)的复合物, 并考察了石墨烯的用量对降解污染物甲基蓝的影响. 采用X射线衍射(XRD), 傅里叶变换红外(FTIR)光谱, 高分辨透射电镜(HRTEM), 拉曼光谱,紫外-可见漫反射吸收光谱(UV-Vis DRS), X射线光电子能谱(XPS)和比表面积(BET)等测试手段对复合材料进行表征. 结果表明, 复合材料中TiO₂为棒状的混合相, 且均匀分散在石墨烯表面. 由于石墨烯良好的吸光性能,混合相中的异质结和复合物的良好光电子传递能力以及高比表面积, 复合材料具有较高的光催化活性. 所制备的TrG复合材料在紫外光下降解甲基蓝的催化活性均高于纯TiO₂, 且当氧化石墨烯负载量为0.8% (质量分数,w)时, 复合材料TrG具有较好的光催化效果.     

偏压控制Cu2O和Cu在TiO2表面的生长及其光电化学性质

基于TiO2/Ti电极在含Cu2+溶液中的循环伏安图,调节电沉积的沉积电压,我们在TiO2平整表面制备出Cu2O和/或Cu颗粒.通过扫描电镜(SEM)、X射线衍射(XRD)和X射线光电子能谱(XPS)表征,发现Cu2O和Cu有不同的生长机制:Cu2O颗粒在TiO2表面分散结晶,而Cu颗粒是在已生长的颗粒上成核,从而形成堆积颗粒结构.这是由于在Cu2O/TiO2界面和Cu/TiO2界面形成不同的能带结构,使得电子的转移方式不同.与纯TiO2光阳极比较,可以观察到Cu2O/TiO2和Cu/TiO2异质结构的光电流均有显著增强.特别地,存在一个电压区间使得Cu2O和Cu同时生长在TiO2表面,此时对应的光电流比较稳定并且能达到最大.紫外-可见(UV-Vis)漫反射光谱、电化学阻抗谱(EIS)和光电流-电压特性曲线均显示,Cu2O和Cu明显有助于光的可见光吸收,同时Cu/TiO2在光电转换过程中显示更宽波段的可见光利用率.此外,开路电压的增加、有效的电荷分离和电极/电解质界面上载流子的快速迁移也增强了材料的光电化学性质.     

棒状金属有机框架结构PCN-222(Cu)/TiO2复合材料的制备及其高效光催化CO2还原性能

The photocatalytic reduction of CO₂ has attracted considerable attention owing to the dual suppression of environmental pollution and energy shortage. The technology uses solar energy to convert carbon dioxide into hydrocarbon fuel, which is of great significance for achieving the carbon cycle. The development of low-cost photocatalytic materials is critical to achieving efficient solar energy to fuels conversion. One of the most commonly employed photocatalysts is TiO₂. However, it suffers from broad band gap as well as the recombination of photo-excited holes and electron. Hence, in this work, we report the photochemical reduction of CO₂ using rod-like PCN-222(Cu)/TiO₂ composites as photocatalyst through a simple hydrothermal method, in which TiO₂ nanoparticles are anchored at the interface of the SiC rod PCN-222(Cu). Multiple characterization techniques were used to analyze the structure, morphology, and properties of the PCN-222(Cu)/TiO₂ composite. A series of characterizations including X-ray diffraction (XRD), scanning electron microscopy (SEM), diffuse reflectance spectroscopy (DRS), Fourier-transform infrared spectroscopy, photo-electrochemical, and photoluminescence (PL) confirm the successful preparation of PCN-222(Cu)/TiO₂ composites. SEM reveals that the TiO₂ nanoparticles are uniformly distributed on the surface of the rod-shaped PCN-222(Cu)/TiO₂. XRD results show that PCN-222(Cu) and PCN-222(Cu)/TiO₂ composite photocatalysts with good crystal structure were successfully synthesized. According to the DRS results, the prepared PCN-222(Cu)/TiO₂ composite samples exhibit characteristic absorption peaks of metalloporphyrins in the visible region. PL spectroscopy, transient photocurrent response, and electrochemical impedance spectroscopy further confirm that the rod-like PCN-222(Cu)/TiO₂ samples have high electron-hole pair separation efficiency. By controlling the mass ratio of PCN-222(Cu) and TiO₂, the photocatalytic CO₂ reduction performance test shows that the 10% PCN-222(Cu)/TiO₂ composite achieves optimal catalytic performance, yielding 13.24 μmol·g⁻¹·h⁻¹ CO and 1.73 μmol·g⁻¹·h⁻¹ CH₄, respectively. All the rod-like PCN-222(Cu)/TiO₂ composites exhibit better photocatalytic CO₂ activity than that of TiO₂ nanoparticles or PCN-222(Cu) under the illumination of xenon lamps, which is attributed to charge transport and electron-hole separation capabilities. After three test cycles, the catalytic activity of PCN-222(Cu)/TiO₂ photocatalyst was virtually unchanged. The reduction yield of the catalyst increased for 8 h under continuous illumination, indicating that PCN-222(Cu)/TiO₂ composites have acceptable stability. The estimation of the band gap curve and the Mote-Schottky curve test show that the lowest unoccupied molecular orbital position of PCN-222(Cu) is more negative than the TiO₂ of the conduction band; hence, a possible photocatalytic reaction mechanism of the PCN-222(Cu)/TiO₂ composite is proposed. This study provides a new strategy for the integration of metal-organic frameworks and oxide semiconductors to construct efficient photocatalytic systems.     

MoS_2/TiO_2复合催化剂的制备及其在紫外光下的光催化制氢活性

为了研究复合光催化剂在光催化中的制氢效率,采用水热法制备了Mo S2纳米片,然后通过水热法在Mo S2纳米片上负载了TiO_2纳米颗粒,形成了Mo S2/TiO_2异质结复合催化剂。采用冷场发射扫描电子显微镜(FE-SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、紫外-可见吸收光谱(UV-Vis)、拉曼光谱(Raman),X射线光电子能谱(XPS)对材料的结构和光学性能表征并进行分析。通过光催化制氢测试对光催化剂进行评价,实验结果表明,在波长为365 nm的紫外光照射下,最高光催化制氢速率为1004μmol·h-1·g-1,对应的催化剂的Mo S2含量为30%,其催化速率远大于单一的Mo S2和TiO_2,表明Mo S2/TiO_2复合催化剂在紫外光照下能显著提高光催化产氢性能。基于Mo S2/TiO_2复合光催化剂优越的光催化产氢性能,本文对复合光催化剂的产氢机理做了研究和分析。     

Pd/TiO2/C复合催化剂的制备及其在碱性溶液中对乙醇氧化的电催化性能

钛酸四丁酯前驱体水热合成制备纳米TiO₂颗粒,在TiO₂和Vulcan XC-72活性炭复合载体上液相还原负载Pd纳米颗粒,制得Pd/TiO₂/C复合催化剂. 通过透射电镜（TEM）和X射线衍射（XRD）测试表明其具有面心立方结构,Pd金属粒子（粒径约3 ~ 4 nm）均匀分散在锐钛矿型的纳米TiO₂和活性炭的复合载体上. 循环伏安和计时电流曲线测试表明,与相同Pd载量的Pd/C相比,20% Pd载量的Pd/TiO₂/C颗粒在常温常压下对乙醇的电催化氧化有很高活性和稳定性. 这主要归功于纳米TiO₂改变了Pd表面的电子特性,且增大了其比表面积.     

ZnMoO4/芦荟衍生多孔碳的化学共沉淀法制备及催化性能

通过两步活化和化学共沉淀法分别制备了芦荟衍生多孔碳(aloe-derived porous carbon,APC)、ZnMoO₄和ZnMoO₄/APC催化剂,并研究了3种催化剂作为染料敏化太阳能电池(dye-sensitized solar cells,DSSCs)对电极时在D35/Y123染料和Cu²⁺/Cu⁺体系中的电化学特性和光伏性能。通过场发射扫描电子显微镜(FESEM)、X射线光电子能谱(XPS)和N₂吸附-脱附测试表征了APC、ZnMoO₄和ZnMoO₄/APC的微观结构、化学成分、比表面积和孔结构。结果表明：APC为多孔网络结构,比表面积为1 439m²·g^-1,ZnMoO₄纳米颗粒均匀嵌入或分散在APC表面。ZnMoO₄/APC在D35或Y123染料和Cu²⁺/Cu⁺电解液的DSSC中,分...     

基于MWCNT/TiO2对电极和硫醇盐/二硫化物非碘氧化还原电对的染料敏化太阳能电池性能

采用水热法合成出多壁纳米碳管/二氧化钛(MWCNT/TiO₂)复合物, 并作为染料敏化太阳能电池(DSSC)中对电极材料并组装成电池. 通过场发射扫描电子显微镜(FE-SEM)、傅里叶变换红外(FTIR)光谱、X射线粉末衍射(XRD)、同步热重-差示扫描量热(TGA-DSC)、拉曼(Raman)光谱和光电子能谱(XPS)等方法对其形貌、组成和结构进行表征. 结果表明, 酸化MWCNT表面―COOH与水热生长出的锐钛矿TiO₂表面―OH之间, 通过形成类似于O＝C―O―Ti 或者C―O―Ti 的结构, 能有效地增强复合物薄膜层与导电玻璃基底之间的相互作用. 通过循环伏安(CV)、电化学阻抗谱(EIS)、塔菲尔曲线(Tafel)和电池的伏安特性曲线等方法研究了该类对电极对硫醇盐/二硫化物(T-/T₂)非碘氧化还原电对的光电化学特性. 结果表明: 当MWCNT与TiO₂质量比为3:1时, 基于该复合物对电极与T-/T₂非碘氧化还原电对所组装DSSC的开路电压为0.63 V, 短路电流为15.81 mA·cm^-2, 填充因子为0.65, 光电转换效率达到6.47%.     

N掺杂TiO_2纳米粒子表面光生电荷特性与光催化活性

以尿素为氮源,采用水热法制备了不同N掺杂量的TiO2(N-TiO2)光催化剂.利用X射线衍射(XRD),紫外-可见漫反射光谱(UV-Vis DRS),X射线光电子能谱(XPS)及荧光(PL)光谱等技术对其进行了系统的表征.以罗丹明B(RhB)和甲基橙(MO)溶液的脱色降解为模型反应,分别考察了N-TiO2光催化剂在紫外和可见光区的光催化活性.利用表面光伏(SPV)和瞬态光伏(TPV)技术研究了N-TiO2纳米粒子表面光生电荷的产生和传输机制,并探讨了光生电荷与光催化活性之间的关系.结果显示,随着N含量的增大,TiO2表面光伏响应阈值红移,可见光部分光电压响应强度逐渐增强,瞬态光伏响应达到最大值的时间亦有着不同程度的延迟.这表明适量的N掺杂能够提高TiO2纳米粒子中光生载流子的分离效率,相应地延长载流子的传输时间,增加光生电荷的寿命,从而促进其光催化活性;而过量的N掺杂则增加了TiO2纳米粒子中光生载流子的复合中心,抑制其光催化活性.     

LaCoO_3-TiO_2纳米管阵列的构筑及可见光光催化性能

TiO_2纳米管阵列具有较高的光催化活性,但可见光吸收弱,限制了其太阳能利用和环境应用。窄带隙的钙钛矿(ABO3)型氧化物能够吸收大范围波段的可见光,且稳定性高,但光催化活性低。本文首先采用溶胶-凝胶法合成了LaCoO_3纳米颗粒,然后利用电泳沉积技术将LaCoO_3纳米颗粒修饰于TiO_2纳米管阵列表面,构筑了LaCoO_3-TiO_2纳米管阵列。扫描电子显微镜(SEM)、透射电子显微镜(SEM)、X射线衍射(XRD)和X射线光电子能谱(XPS)的表征结果显示溶胶-凝胶法合成的纳米颗粒为LaCoO_3,其尺寸均匀,结晶度高,平均粒径约为100nm。LaCoO_3纳米颗粒与TiO_2纳米管阵列之间的结合力好。紫外可见吸收光谱(DRS)显示,随着电泳沉积时间的延长,LaCoO_3-TiO_2纳米管阵列的吸收带边逐渐红移700nm。可见光下光催化降解甲基橙(MO)的结果表明,电泳沉积15 min制得的LaCoO_3-TiO_2纳米管阵列对MO的光催化效率最高,其降解速率是相同条件下TiO_2纳米管阵列的4倍。光致发光光谱和电化学阻抗谱证实LaCoO_3纳米颗粒的负载有效地促进了光生电荷的分离和传输,可见光光催化活性明显增强。     

锐钛矿型TiO2担载的Pd催化剂用于乙炔选择加氢的催化性能及其表征

Anatase TiO₂ nanospindles containing 89% exposed {101} facets (TiO₂-101) and nanosheets with 77% exposed {001} facets (TiO₂-001) were hydrothermally synthesized and used as supports for Pd catalysts. The effects of the TiO₂ materials on the catalytic performance of Pd/TiO₂-101 and Pd/TiO₂-001 catalysts were investigated in the selective hydrogenation of acetylene to polymer-grade ethylene. The Pd/TiO₂-101 catalyst exhibited enhanced performance in terms of acetylene conversion and ethylene yield. To understand these effects, the catalysts were characterized by H₂ temperature-programmed desorption (H₂-TPD), H₂ temperatureprogrammed reduction (H₂-TPR), transmission electron microscopy (TEM), pulse CO chemisorption, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The TEM and CO chemisorption results confirmed that Pd nanoparticles (NPs) on the TiO₂-101 support had a smaller average particle size (1.53 nm) and a higher dispersion (15.95%) than those on the TiO₂-001 support (average particle size of 4.36 nm and dispersion of 9.06%). The smaller particle size and higher dispersion of Pd on the Pd/TiO₂-101 catalyst provided more reaction active sites, which contributed to the improved catalytic activity of this supported catalyst.     

SnO_2/TiO_2纳米管复合光催化剂的性能及失活再生

基于微波水热法和微乳液法合成SnO2/TiO2纳米管复合光催化剂.通过X射线衍射(XRD)、配有能量色散X射线光谱仪(EDX)的透射电镜(TEM)和电化学手段对光催化剂进行表征.以甲苯为模型污染物,考察光催化剂在紫外光(UV)和真空远紫外光(VUV)下的性能及失活再生.结果表明,SnO2/TiO2纳米管复合光催化剂形成三元异质结(锐钛矿相TiO2(A-TiO2)/金红石相TiO2(R-TiO2)、A-TiO2/SnO2和R-TiO2/SnO2异质结),促使光生电子-空穴对的有效分离,提高光催化活性.SnO2/TiO2表现出最佳的光催化性能,UV和VUV条件下的甲苯降解率均达100%,CO2生成速率(k2)均为P25的3倍左右.但由于UV光照矿化能力不足,中间产物易在催化剂表面累积.随着UV光照时间的增加,SnO2/TiO2逐渐失活,20 h后k2由138.5 mg·m-3·h-1下降到76.1 mg·m-3·h-1.利用VUV再生失活的SnO2/TiO2,过程中产生的·OH、O2-·、O(1D)、O(3P)、O3等活性物质可氧化吸附于催化剂活性位的难降解中间产物,使催化剂得以再生,12 h后k2恢复到143.6 mg·m-3·h-1.UV和VUV的协同效应使UV降解耦合VUV再生成为一种可持续的光催化降解污染物模式.     

基于纳米金增敏的双酚A二氧化钛凝胶分子印迹电化学传感器的制备及应用

以纳米金(Au NPs)为增敏材料,双酚A(BPA)为模板分子,结合表面溶胶凝胶法和自组装法,制备了BPA纳米金-Ti O_2凝胶分子印迹电化学传感器。利用扫描电子显微镜和能谱对Au NPs进行了表征,利用红外光谱仪对Ti O_2凝胶、BPA以及BPA印迹Ti O_2凝胶进行表征。在最优条件下,该传感器对BPA在1.0×10~(-8)~1.0×10~(-5)mol/L浓度范围内具有良好的线性关系,线性相关系数为0.995,检测限为0.6×10~(-8)mol/L,并将该分子印迹传感器应用于实际样品中BPA的分析检测,其回收率为97.4%~103%。     

耦联剂辅助吸附法制备CuInS2量子点敏化太阳电池

分别以CuI 和InAc3 作为铜源和铟源, 十二硫醇(DDT)作为硫源, 采用直接加热法合成不同尺寸的CuInS₂ (CIS)量子点. 运用X射线衍射(XRD), 拉曼光谱(Raman), 高分辨率透射电镜(HRTEM), 紫外-可见(UVVis)吸收光谱表征其相结构、形貌及光学性能. 结果表明: 制备的CIS量子点为黄铜矿结构, 且随着时间的延长, 量子点逐渐长大, 吸收光谱的激子吸收峰逐渐红移, 表现出量子尺寸效应. 采用巯基乙酸为双功能耦联剂辅助吸附法制备CIS敏化的TiO₂薄膜. 通过衰减全反射红外光谱(ATR-FTIR)分析得出, 巯基乙酸上的羧基与TiO₂表面羟基连接, 另一端上的巯基代替长链的DDT与CIS 耦联, 将CIS 成功锚定在TiO₂表面. 该方法不仅操作简单, 而且容易实现CIS在TiO₂表面的吸附. 太阳电池光电性能测试表明, 粒径大小约为3.6 nm的CIS量子点表现出最优的吸附能力以及光电转换性能. 进一步采用连续离子吸附层法对CIS敏化的TiO₂薄膜进行CdS包覆, 光电转换性能大大提高, 其效率达到2.83%, 这主要源于CdS的包覆钝化了CIS 的表面缺陷, 有效地降低了电子复合.