【摘 要】
：
Novel self-assemble peony-like 3-D copper hydroxyl-phosphate(Cu2(OH)PO4)were synthesized by a solution-growth method on the copper foil.The ordered self-aggregate peony-like 3-D Cu2(OH)PO4 flowers wit
【机 构】
：
School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,C
【出 处】
：
第十四届全国太阳能光化学与光催化学术会议
论文部分内容阅读
Novel self-assemble peony-like 3-D copper hydroxyl-phosphate(Cu2(OH)PO4)were synthesized by a solution-growth method on the copper foil.The ordered self-aggregate peony-like 3-D Cu2(OH)PO4 flowers with the diameter size up to 30 μm are composed of hundreds of anisotropic grown cross-linking interlobate 2-D petals with several micrometers wide and 110-170 nm thick.By means of field-emission scanning electron microscopy(FESEM),the morphology changes and the final formation of the peony-like Cu2(OH)PO4 products have been analyzed in detail.The possible growth process of Cu2(OH)PO4 flowers and the relationship between the shape of Cu2(OH)PO4 nanostructure and the activity for photocatalytic and photoelectrochemical response under visible light irradiation have also been investigated.
其他文献
染料敏化太阳电池主要由纳米晶半导体光阳极、染料分子、电解质和对电极四部分构成.而目前研究的电极材料主要包括TiO2[1]、ZnO[2～4]、Nb2O5[5]、SnO2[6～8] 等一系列半导体材料，其中TiO2由于具有合适的禁带宽度(Eg = 3.2eV)，优越的光电、介电效应和光电化学稳定性，一直以来都作为染料敏化太阳电池中光阳极研究的核心.本文将围绕TiO2作为光阳极材料的染料敏化太阳能电池的
光催化技术目前已经在空气净化，自清洁和抗菌等方面得到了广泛的应用，但在水处理领域，虽然已有较多的研究，但其实际应用仍然面临许多瓶颈问题，其中光能利用率低是其中之一.转盘光催化液膜反应器可以有效的减少溶液对入射光的吸收，大大提高了光催化降解水体污染物的效率1.然而，由于并不存在绝对的黑体，部分入射光仍然会在催化剂或溶液表面发生反射，造成光能损失.同时，催化剂的光量子效率也需要进一步的提高.
TiO2无毒、价廉、化学稳定性好,被认为是一种较理想的半导体光催化材料[1].但是TiO2 带隙较宽,且电子-空穴对易复合,因此光催化反应效率较低[2].近年来的研究表明利用石墨烯对TiO2 进行修饰可以提高其光催化活性[3,4].前期工作我们发明了一种火热法制备嵌碳TiO2 微球的新方法[5].在此基础上又分别合成了SiOx[6]以及Fe修饰的C/TiO2[7].研究表明SiOx和Fe的引入均能
BiOBr-sensitized K2La2Ti3O10 composite photocatalysts(BiOBr/K2La2Ti3O10)were fabricated by depositing BiOBr particles on the surface of K2La2Ti3O10through a solvothermal method.The deposited BiOBr par
Hematite has been receiving increasing attention for its application in photoelectrochemical(PEC)water oxidation,but usually exhibits poor efficiency.We fabricated stable gradient structured FeOx(PO4)
BiOIO3,具有二次谐波、压电、热电等性质,属于正交空间群Pca21,晶胞参数为a=0.5645(2) nm,b =1.1036(4) nm,c =0.5731(2) nm,是一种新型的,具有非对称中心的极性半导体材料[1].最近有报道将其应用于光催化领域,发现其有较好的紫外光催化活性[2].然而,其较大的带隙限制了其对太阳光的利用.氧化石墨烯(GO)因其独特的二维层状结构,具有较大的比表面积,
The amount of wastewater increased rapidly with the development of industry,and water pollutionhas becomean increasingly serious problem in recent years.Among them,the textile industry is aparticularl
抗生素对水环境的生态安全性及人体健康构成威胁,痕量抗生素在环境中的出现及其潜在危害引起越来越多的关注.我们课题组以钛酸丁酯为钛源,以PVA-KI-I2溶液为修饰剂,利用水热法制备了PVA-I/TiO2(简称PIT)光催化.表征结果表明：PIT催化剂为锐钛矿型介孔结构,比表面积、孔径和孔容分别为190.22 m2·g-1、3.8nm和0.19 cm3·g-1；PIT催化剂在400nm以上可见光区有较
Recently,mono-and few-layered of transition metal dichalcogenides(TMDs)have received significant attention because some of them are semiconductors with sizable bandgaps and are naturally abundant.Two-
Uniformly dispersed Ag nanoparticles(NPs)were successfully decorated into boththe outer and inner surface of the TiO2 nanotube arrays(NTs)through a simple polyolmethod.The as-prepared Ag/TiO2 NTs were