Results 11 to 20 of about 1,665,461 (132)
Microcrystallite characters and photocatalytic activity of TiO2 doped with C60(掺C60二氧化钛微晶特性和光催化活性研究)
通过热分析、X射线衍射以及光活性测试,分析了不同掺杂量、不同煅烧温度下掺杂C60二氧化钛微晶样品,研究了掺杂对二氧化钛光活性的改善情况.C60掺杂二氧化钛体系中C60的热解温度明显提前,二氧化钛的晶化温度延迟、相变受到抑制且光活性得到一定程度的提高,其微晶参数也有一定规律变化.
JINDa-lai(金达莱) +3 more
doaj +2 more sources
采用批处理吸附实验,研究了颗粒活性炭和粉末活性炭负载纳米二氧化钛对水体中砷的去除效果及其初步机理。X射线衍射表征两种活性炭负载纳米二氧化钛后饱和吸附As(Ⅴ)和As(Ⅲ)前后的晶体结构图谱表明,其对砷的吸附属于表面吸附。结果说明,活性炭负载纳米二氧化钛便于纳米材料的回收,是发挥纳米二氧化钛除砷效果的重要措施。
龙小燕, 涂书新
doaj +2 more sources
从光化学的角度,对砂子负载纳米二氧化钛薄膜,光催化剂降解工业污水中的有机污染物的过程进行分析与研究,探讨了多种因素对光降解的影响。实验显示在紫外光和纳米二氧化钛共同存在下,能对工业污水进行处理,砂子负载纳米二氧化钛进行光催化降解的最佳条件:纳米二氧化钛的质量分数为2%,焙烧温度约300℃,工业污水的pH为6.0~7.0。
任朝华, 张光华, 卫志贤
doaj +2 more sources
The Evolution of Metal Halide Perovskite Transistors
ABSTRACT Metal halide perovskites (MHPs) offer a revolutionary pathway for next‐generation field‐effect transistors (FETs) because of their exceptional carrier mobilities and cost‐effective processability. However, their transition to practical electronics is significantly challenged by intrinsic instability and imbalanced charge transport. This review
Jiangnan Xia +8 more
wiley +1 more source
讨论了水热合成法和阳极氧化法2种二氧化钛纳米管制备方法,并比较了该2种方法制备的纳米管的区别。针对纳米管特点,对其在光催化、储能、氢敏材料、太阳能染料电池等领域的研究及潜在应用进行了综述 ...
张文彬, 李新军, 何明兴
core +5 more sources
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie +11 more
wiley +1 more source
Efficient Photocatalytic Removal of Toluene by Synergistic FeCe/TiO2: Performance and Mechanism
ABSTRACT Efficient removal of volatile organic compounds (VOCs) in confined spaces is crucial for environments such as spacecraft and deep‐sea submarines. Metal modification is an effective strategy to enhance the light absorption capacity of titanium dioxide (TiO2) and suppress the recombination of photogenerated charge carriers.
Ke Xu +10 more
wiley +1 more source
ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source
ABSTRACT Bone defect repair in elderly patients is frequently compromised by reduced osteogenic capacity and delayed healing. Chronic inflammation‐driven inflammaging is a critical contributor to this impairment, characterized by dysfunctional autophagy in senescent macrophages (S‐MΦs), excessive reactive oxygen species (ROS) accumulation, and ...
Ruiyue Hang +6 more
wiley +1 more source
在氢氟酸电解液中采用阳极氧化法在多孔钛片上制备了二氧化钛纳米管束.考察了电压对二氧化钛氧化层形貌及温度对二氧化钛晶型的影响.制备的二氧化钛纳米管形貌,晶型及光催化性能分别采用SEM,XRD和光催化还原Pd2+沉积钯膜实验表征.SEM结果表明,最佳阳极氧化电压为30 V.在此电压下制备的二氧化钛纳米管长约为300 nm,管径约为40nm,壁厚约为20 nm.XRD结果显示,773 K退火后,二氧化钛为锐钛矿型;873 K退火后二氧化钛主要为锐钛矿型,含有2.99%的金红石相;973 ...
赵蓉, 丁冉峰, 蒋炜, 梁斌
doaj

