High-efficiency and conveniently recyclable photo-catalysts for dye degradation based on urchin-like CuO microparticle/polymer hybrid composites

Alkyldimethylbetaine-Assisted Development of Hollow Urchinlike CuO Microspheres and Application for High-Performance Battery Anodes

“…20,21,59,60 The present work not only provided important fundamental information in developing surfactant-assisted 3D hierarchical CuO but also showed a promising application potential in the energy field with better performance. According to our work and other related works on the photocatalyst of CuO materials, 40,42 the developed hollow urchinlike CuO microspheres might also show excellent potential in the field of environmental conservation.…”

“…Moreover, these rodlike CuO particles are composed of smaller subunits, CuO nanopatches, and similar observation was also reported previously. 40 Figure 1b showed the TEM image of a single CuO microsphere about 3 μm, in which the cross-linked rodlike CuO subunits with width about tens of nanometers were observed clearly at the edge of particle. The HRTEM image (Figure 1c) showed its characteristic facet with the lattice fringe spacing d of 0.25 nm, corresponding to the {002} facet of CuO crystals, which was also visible in the selected area electron diffraction (SAED) pattern of the sample (the inset image in Figure 1c).…”

“…Moreover, those platelike particles were composed of smaller CuO particles, as reported previously. 40 However, the morphologies of CuO microspheres were improved significantly once BS-12 was introduced into the system even with a small amount. It was noticed that relatively regular CuO microspheres with a more rough surface were formed when the value of r = 3/1 was employed (Figure 3b).…”

“…BS surfactants including BS-10, BS-12, and BS-14 were synthesized according to the same procedure, as described previously. 40 Chemicals including CuCl 2 ·2H 2 O (99%), CuNO 3 ·3H 2 O (99%), CuSO 4 ·5H 2 O (99%), Cu(CH 3 COO) 2 ·H 2 O (99%), and NH 3 ·H 2 O (17%) were obtained from Sinopharm Chemical Reagent Corporation. All other solvents and reagents were obtained from commercial sources and were used as received.…”

Preparation of Ti-Nb-Fe-O Nanotubes on Ti10NbxFe Alloy and the Application for Photocatalytic Degradation under Solar Irradiation

“…Water shortage is one of the most pressing global challenges. Meanwhile, the toxic and carcinogenic dyes widely used in modern industry are one crucial category of contaminants and water pollution [1]. It is thus crucial to eliminate organic dyes from wastewater.…”