Honeycomb-shaped carbon nanotube supports for BiVO₄ based solar water splitting

Abstract

Advances in the synthesis and assembly of nanomaterials offer a unique opportunity to purposefully design nanoparticle structures for a specific applications. Here 3D carbon nanotube structures are coated with BiVO4 for solar water splitting.

Study the influence of silver and cobalt on the photocatalytic activity of copper oxide nanoparticles for the degradation of methyl orange and real wastewater dyes

“…Unfortunately, organic substances remain in the environment for a long time. Industrial dyes, especially textile dyes, represent a major source of organic water pollutants, which leads to numerous environmental risks [8][9][10]. The presence of these colored organic dyes in the environment is the main source of water pollution it can create many hazardous compounds through processes such as oxidation or hydrolysis and other chemical reactions.…”

“…Therefore, there is increasing interest in the treatment and degradation of these dyes and their transformation into non-toxic compounds. Heterogeneous advanced oxidation technology (HET.AOT) is one of the new methods widely used for the decomposition or decolorization of the organic dyes [9,[11][12][13]. Semiconductor metal oxide nanoparticles are a very important member of the family of (HET.AOT).…”

Fabrication and applications of stimuli‐responsive micro/nanopillar arrays

“…CNT, carbon nanotube; CVD, chemical vapor deposition; RIE, reactive ion etching; PS, polystyrene; Si, silicon to many researchers because of their high electroconductivity and lightweight advantages. 7,[34][35][36][37][38] As shown in Figure 5(C), hexagonally arranged microhole arrays were first prepared by photolithography that patterns positive tone PR resist by developing it with solvents. 34 Then, PVD was introduced to deposit catalyst, Fe/Al 2 O 3 , on the PR master mold.…”

“…The CNT forest was reshaped into a honeycomb structure due to capillary aggregation. 37 The coated hematite nanoparticles act as an anode for the electrode to transfer electrons in the path of the VACNT for lithium-ion batteries.…”

“…For example, molecular assembly can be introduced to grow metal oxide nanopillar arrays with the assistance of a seed layer organized by sputtering 32 or spin-coating. 33 Advancing from that, carbon nanotube (CNT) micro 7,[34][35][36][37] /nanoforests 38 are rendered by bottomup assembly of C x H y molecules on a catalyst patterned by top-down lithography. Highly electroconductive and lightweight CNT micro/nanopillar arrays were obtained with high uniformity and periodicity.…”